1use crate::{
   2    rpc::{CLEANUP_TIMEOUT, RECONNECT_TIMEOUT},
   3    tests::{
   4        channel_id, following_tests::join_channel, room_participants, rust_lang, RoomParticipants,
   5        TestClient, TestServer,
   6    },
   7};
   8use anyhow::{anyhow, Result};
   9use assistant::{ContextStore, PromptBuilder, SlashCommandWorkingSet};
  10use assistant_tool::ToolWorkingSet;
  11use call::{room, ActiveCall, ParticipantLocation, Room};
  12use client::{User, RECEIVE_TIMEOUT};
  13use collections::{HashMap, HashSet};
  14use fs::{FakeFs, Fs as _, RemoveOptions};
  15use futures::{channel::mpsc, StreamExt as _};
  16use git::repository::GitFileStatus;
  17use gpui::{
  18    px, size, AppContext, BackgroundExecutor, Model, Modifiers, MouseButton, MouseDownEvent,
  19    TestAppContext, UpdateGlobal,
  20};
  21use language::{
  22    language_settings::{
  23        AllLanguageSettings, Formatter, FormatterList, PrettierSettings, SelectedFormatter,
  24    },
  25    tree_sitter_rust, tree_sitter_typescript, Diagnostic, DiagnosticEntry, FakeLspAdapter,
  26    Language, LanguageConfig, LanguageMatcher, LineEnding, OffsetRangeExt, Point, Rope,
  27};
  28use lsp::LanguageServerId;
  29use parking_lot::Mutex;
  30use project::lsp_store::FormatTarget;
  31use project::{
  32    lsp_store::FormatTrigger, search::SearchQuery, search::SearchResult, DiagnosticSummary,
  33    HoverBlockKind, Project, ProjectPath,
  34};
  35use rand::prelude::*;
  36use serde_json::json;
  37use settings::SettingsStore;
  38use std::{
  39    cell::{Cell, RefCell},
  40    env, future, mem,
  41    path::{Path, PathBuf},
  42    rc::Rc,
  43    sync::{
  44        atomic::{AtomicBool, Ordering::SeqCst},
  45        Arc,
  46    },
  47    time::Duration,
  48};
  49use unindent::Unindent as _;
  50use workspace::Pane;
  51
  52#[ctor::ctor]
  53fn init_logger() {
  54    if std::env::var("RUST_LOG").is_ok() {
  55        env_logger::init();
  56    }
  57}
  58
  59#[gpui::test(iterations = 10)]
  60async fn test_basic_calls(
  61    executor: BackgroundExecutor,
  62    cx_a: &mut TestAppContext,
  63    cx_b: &mut TestAppContext,
  64    cx_b2: &mut TestAppContext,
  65    cx_c: &mut TestAppContext,
  66) {
  67    let mut server = TestServer::start(executor.clone()).await;
  68
  69    let client_a = server.create_client(cx_a, "user_a").await;
  70    let client_b = server.create_client(cx_b, "user_b").await;
  71    let client_c = server.create_client(cx_c, "user_c").await;
  72    server
  73        .make_contacts(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
  74        .await;
  75
  76    let active_call_a = cx_a.read(ActiveCall::global);
  77    let active_call_b = cx_b.read(ActiveCall::global);
  78    let active_call_c = cx_c.read(ActiveCall::global);
  79
  80    // Call user B from client A.
  81    active_call_a
  82        .update(cx_a, |call, cx| {
  83            call.invite(client_b.user_id().unwrap(), None, cx)
  84        })
  85        .await
  86        .unwrap();
  87    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
  88    executor.run_until_parked();
  89    assert_eq!(
  90        room_participants(&room_a, cx_a),
  91        RoomParticipants {
  92            remote: Default::default(),
  93            pending: vec!["user_b".to_string()]
  94        }
  95    );
  96
  97    // User B receives the call.
  98
  99    let mut incoming_call_b = active_call_b.read_with(cx_b, |call, _| call.incoming());
 100    let call_b = incoming_call_b.next().await.unwrap().unwrap();
 101    assert_eq!(call_b.calling_user.github_login, "user_a");
 102
 103    // User B connects via another client and also receives a ring on the newly-connected client.
 104    let _client_b2 = server.create_client(cx_b2, "user_b").await;
 105    let active_call_b2 = cx_b2.read(ActiveCall::global);
 106
 107    let mut incoming_call_b2 = active_call_b2.read_with(cx_b2, |call, _| call.incoming());
 108    executor.run_until_parked();
 109    let call_b2 = incoming_call_b2.next().await.unwrap().unwrap();
 110    assert_eq!(call_b2.calling_user.github_login, "user_a");
 111
 112    // User B joins the room using the first client.
 113    active_call_b
 114        .update(cx_b, |call, cx| call.accept_incoming(cx))
 115        .await
 116        .unwrap();
 117
 118    let room_b = active_call_b.read_with(cx_b, |call, _| call.room().unwrap().clone());
 119    assert!(incoming_call_b.next().await.unwrap().is_none());
 120
 121    executor.run_until_parked();
 122    assert_eq!(
 123        room_participants(&room_a, cx_a),
 124        RoomParticipants {
 125            remote: vec!["user_b".to_string()],
 126            pending: Default::default()
 127        }
 128    );
 129    assert_eq!(
 130        room_participants(&room_b, cx_b),
 131        RoomParticipants {
 132            remote: vec!["user_a".to_string()],
 133            pending: Default::default()
 134        }
 135    );
 136
 137    // Call user C from client B.
 138
 139    let mut incoming_call_c = active_call_c.read_with(cx_c, |call, _| call.incoming());
 140    active_call_b
 141        .update(cx_b, |call, cx| {
 142            call.invite(client_c.user_id().unwrap(), None, cx)
 143        })
 144        .await
 145        .unwrap();
 146
 147    executor.run_until_parked();
 148    assert_eq!(
 149        room_participants(&room_a, cx_a),
 150        RoomParticipants {
 151            remote: vec!["user_b".to_string()],
 152            pending: vec!["user_c".to_string()]
 153        }
 154    );
 155    assert_eq!(
 156        room_participants(&room_b, cx_b),
 157        RoomParticipants {
 158            remote: vec!["user_a".to_string()],
 159            pending: vec!["user_c".to_string()]
 160        }
 161    );
 162
 163    // User C receives the call, but declines it.
 164    let call_c = incoming_call_c.next().await.unwrap().unwrap();
 165    assert_eq!(call_c.calling_user.github_login, "user_b");
 166    active_call_c.update(cx_c, |call, cx| call.decline_incoming(cx).unwrap());
 167    assert!(incoming_call_c.next().await.unwrap().is_none());
 168
 169    executor.run_until_parked();
 170    assert_eq!(
 171        room_participants(&room_a, cx_a),
 172        RoomParticipants {
 173            remote: vec!["user_b".to_string()],
 174            pending: Default::default()
 175        }
 176    );
 177    assert_eq!(
 178        room_participants(&room_b, cx_b),
 179        RoomParticipants {
 180            remote: vec!["user_a".to_string()],
 181            pending: Default::default()
 182        }
 183    );
 184
 185    // Call user C again from user A.
 186    active_call_a
 187        .update(cx_a, |call, cx| {
 188            call.invite(client_c.user_id().unwrap(), None, cx)
 189        })
 190        .await
 191        .unwrap();
 192
 193    executor.run_until_parked();
 194    assert_eq!(
 195        room_participants(&room_a, cx_a),
 196        RoomParticipants {
 197            remote: vec!["user_b".to_string()],
 198            pending: vec!["user_c".to_string()]
 199        }
 200    );
 201    assert_eq!(
 202        room_participants(&room_b, cx_b),
 203        RoomParticipants {
 204            remote: vec!["user_a".to_string()],
 205            pending: vec!["user_c".to_string()]
 206        }
 207    );
 208
 209    // User C accepts the call.
 210    let call_c = incoming_call_c.next().await.unwrap().unwrap();
 211    assert_eq!(call_c.calling_user.github_login, "user_a");
 212    active_call_c
 213        .update(cx_c, |call, cx| call.accept_incoming(cx))
 214        .await
 215        .unwrap();
 216    assert!(incoming_call_c.next().await.unwrap().is_none());
 217
 218    let room_c = active_call_c.read_with(cx_c, |call, _| call.room().unwrap().clone());
 219
 220    executor.run_until_parked();
 221    assert_eq!(
 222        room_participants(&room_a, cx_a),
 223        RoomParticipants {
 224            remote: vec!["user_b".to_string(), "user_c".to_string()],
 225            pending: Default::default()
 226        }
 227    );
 228    assert_eq!(
 229        room_participants(&room_b, cx_b),
 230        RoomParticipants {
 231            remote: vec!["user_a".to_string(), "user_c".to_string()],
 232            pending: Default::default()
 233        }
 234    );
 235    assert_eq!(
 236        room_participants(&room_c, cx_c),
 237        RoomParticipants {
 238            remote: vec!["user_a".to_string(), "user_b".to_string()],
 239            pending: Default::default()
 240        }
 241    );
 242
 243    // TODO: Re-enable this test once we can replace our swift Livekit SDK with the rust SDK
 244    #[cfg(not(target_os = "macos"))]
 245    {
 246        // User A shares their screen
 247        let display = gpui::TestScreenCaptureSource::new();
 248        let events_b = active_call_events(cx_b);
 249        let events_c = active_call_events(cx_c);
 250        cx_a.set_screen_capture_sources(vec![display]);
 251        active_call_a
 252            .update(cx_a, |call, cx| {
 253                call.room()
 254                    .unwrap()
 255                    .update(cx, |room, cx| room.share_screen(cx))
 256            })
 257            .await
 258            .unwrap();
 259
 260        executor.run_until_parked();
 261
 262        // User B observes the remote screen sharing track.
 263        assert_eq!(events_b.borrow().len(), 1);
 264        let event_b = events_b.borrow().first().unwrap().clone();
 265        if let call::room::Event::RemoteVideoTracksChanged { participant_id } = event_b {
 266            assert_eq!(participant_id, client_a.peer_id().unwrap());
 267
 268            room_b.read_with(cx_b, |room, _| {
 269                assert_eq!(
 270                    room.remote_participants()[&client_a.user_id().unwrap()]
 271                        .video_tracks
 272                        .len(),
 273                    1
 274                );
 275            });
 276        } else {
 277            panic!("unexpected event")
 278        }
 279
 280        // User C observes the remote screen sharing track.
 281        assert_eq!(events_c.borrow().len(), 1);
 282        let event_c = events_c.borrow().first().unwrap().clone();
 283        if let call::room::Event::RemoteVideoTracksChanged { participant_id } = event_c {
 284            assert_eq!(participant_id, client_a.peer_id().unwrap());
 285
 286            room_c.read_with(cx_c, |room, _| {
 287                assert_eq!(
 288                    room.remote_participants()[&client_a.user_id().unwrap()]
 289                        .video_tracks
 290                        .len(),
 291                    1
 292                );
 293            });
 294        } else {
 295            panic!("unexpected event")
 296        }
 297    }
 298
 299    // User A leaves the room.
 300    active_call_a
 301        .update(cx_a, |call, cx| {
 302            let hang_up = call.hang_up(cx);
 303            assert!(call.room().is_none());
 304            hang_up
 305        })
 306        .await
 307        .unwrap();
 308    executor.run_until_parked();
 309    assert_eq!(
 310        room_participants(&room_a, cx_a),
 311        RoomParticipants {
 312            remote: Default::default(),
 313            pending: Default::default()
 314        }
 315    );
 316    assert_eq!(
 317        room_participants(&room_b, cx_b),
 318        RoomParticipants {
 319            remote: vec!["user_c".to_string()],
 320            pending: Default::default()
 321        }
 322    );
 323    assert_eq!(
 324        room_participants(&room_c, cx_c),
 325        RoomParticipants {
 326            remote: vec!["user_b".to_string()],
 327            pending: Default::default()
 328        }
 329    );
 330
 331    // User B gets disconnected from the LiveKit server, which causes them
 332    // to automatically leave the room. User C leaves the room as well because
 333    // nobody else is in there.
 334    server
 335        .test_livekit_server
 336        .disconnect_client(client_b.user_id().unwrap().to_string())
 337        .await;
 338    executor.run_until_parked();
 339
 340    active_call_b.read_with(cx_b, |call, _| assert!(call.room().is_none()));
 341
 342    active_call_c.read_with(cx_c, |call, _| assert!(call.room().is_none()));
 343    assert_eq!(
 344        room_participants(&room_a, cx_a),
 345        RoomParticipants {
 346            remote: Default::default(),
 347            pending: Default::default()
 348        }
 349    );
 350    assert_eq!(
 351        room_participants(&room_b, cx_b),
 352        RoomParticipants {
 353            remote: Default::default(),
 354            pending: Default::default()
 355        }
 356    );
 357    assert_eq!(
 358        room_participants(&room_c, cx_c),
 359        RoomParticipants {
 360            remote: Default::default(),
 361            pending: Default::default()
 362        }
 363    );
 364}
 365
 366#[gpui::test(iterations = 10)]
 367async fn test_calling_multiple_users_simultaneously(
 368    executor: BackgroundExecutor,
 369    cx_a: &mut TestAppContext,
 370    cx_b: &mut TestAppContext,
 371    cx_c: &mut TestAppContext,
 372    cx_d: &mut TestAppContext,
 373) {
 374    let mut server = TestServer::start(executor.clone()).await;
 375
 376    let client_a = server.create_client(cx_a, "user_a").await;
 377    let client_b = server.create_client(cx_b, "user_b").await;
 378    let client_c = server.create_client(cx_c, "user_c").await;
 379    let client_d = server.create_client(cx_d, "user_d").await;
 380    server
 381        .make_contacts(&mut [
 382            (&client_a, cx_a),
 383            (&client_b, cx_b),
 384            (&client_c, cx_c),
 385            (&client_d, cx_d),
 386        ])
 387        .await;
 388
 389    let active_call_a = cx_a.read(ActiveCall::global);
 390    let active_call_b = cx_b.read(ActiveCall::global);
 391    let active_call_c = cx_c.read(ActiveCall::global);
 392    let active_call_d = cx_d.read(ActiveCall::global);
 393
 394    // Simultaneously call user B and user C from client A.
 395    let b_invite = active_call_a.update(cx_a, |call, cx| {
 396        call.invite(client_b.user_id().unwrap(), None, cx)
 397    });
 398    let c_invite = active_call_a.update(cx_a, |call, cx| {
 399        call.invite(client_c.user_id().unwrap(), None, cx)
 400    });
 401    b_invite.await.unwrap();
 402    c_invite.await.unwrap();
 403
 404    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
 405    executor.run_until_parked();
 406    assert_eq!(
 407        room_participants(&room_a, cx_a),
 408        RoomParticipants {
 409            remote: Default::default(),
 410            pending: vec!["user_b".to_string(), "user_c".to_string()]
 411        }
 412    );
 413
 414    // Call client D from client A.
 415    active_call_a
 416        .update(cx_a, |call, cx| {
 417            call.invite(client_d.user_id().unwrap(), None, cx)
 418        })
 419        .await
 420        .unwrap();
 421    executor.run_until_parked();
 422    assert_eq!(
 423        room_participants(&room_a, cx_a),
 424        RoomParticipants {
 425            remote: Default::default(),
 426            pending: vec![
 427                "user_b".to_string(),
 428                "user_c".to_string(),
 429                "user_d".to_string()
 430            ]
 431        }
 432    );
 433
 434    // Accept the call on all clients simultaneously.
 435    let accept_b = active_call_b.update(cx_b, |call, cx| call.accept_incoming(cx));
 436    let accept_c = active_call_c.update(cx_c, |call, cx| call.accept_incoming(cx));
 437    let accept_d = active_call_d.update(cx_d, |call, cx| call.accept_incoming(cx));
 438    accept_b.await.unwrap();
 439    accept_c.await.unwrap();
 440    accept_d.await.unwrap();
 441
 442    executor.run_until_parked();
 443
 444    let room_b = active_call_b.read_with(cx_b, |call, _| call.room().unwrap().clone());
 445
 446    let room_c = active_call_c.read_with(cx_c, |call, _| call.room().unwrap().clone());
 447
 448    let room_d = active_call_d.read_with(cx_d, |call, _| call.room().unwrap().clone());
 449    assert_eq!(
 450        room_participants(&room_a, cx_a),
 451        RoomParticipants {
 452            remote: vec![
 453                "user_b".to_string(),
 454                "user_c".to_string(),
 455                "user_d".to_string(),
 456            ],
 457            pending: Default::default()
 458        }
 459    );
 460    assert_eq!(
 461        room_participants(&room_b, cx_b),
 462        RoomParticipants {
 463            remote: vec![
 464                "user_a".to_string(),
 465                "user_c".to_string(),
 466                "user_d".to_string(),
 467            ],
 468            pending: Default::default()
 469        }
 470    );
 471    assert_eq!(
 472        room_participants(&room_c, cx_c),
 473        RoomParticipants {
 474            remote: vec![
 475                "user_a".to_string(),
 476                "user_b".to_string(),
 477                "user_d".to_string(),
 478            ],
 479            pending: Default::default()
 480        }
 481    );
 482    assert_eq!(
 483        room_participants(&room_d, cx_d),
 484        RoomParticipants {
 485            remote: vec![
 486                "user_a".to_string(),
 487                "user_b".to_string(),
 488                "user_c".to_string(),
 489            ],
 490            pending: Default::default()
 491        }
 492    );
 493}
 494
 495#[gpui::test(iterations = 10)]
 496async fn test_joining_channels_and_calling_multiple_users_simultaneously(
 497    executor: BackgroundExecutor,
 498    cx_a: &mut TestAppContext,
 499    cx_b: &mut TestAppContext,
 500    cx_c: &mut TestAppContext,
 501) {
 502    let mut server = TestServer::start(executor.clone()).await;
 503
 504    let client_a = server.create_client(cx_a, "user_a").await;
 505    let client_b = server.create_client(cx_b, "user_b").await;
 506    let client_c = server.create_client(cx_c, "user_c").await;
 507    server
 508        .make_contacts(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
 509        .await;
 510
 511    let channel_1 = server
 512        .make_channel(
 513            "channel1",
 514            None,
 515            (&client_a, cx_a),
 516            &mut [(&client_b, cx_b), (&client_c, cx_c)],
 517        )
 518        .await;
 519
 520    let channel_2 = server
 521        .make_channel(
 522            "channel2",
 523            None,
 524            (&client_a, cx_a),
 525            &mut [(&client_b, cx_b), (&client_c, cx_c)],
 526        )
 527        .await;
 528
 529    let active_call_a = cx_a.read(ActiveCall::global);
 530
 531    // Simultaneously join channel 1 and then channel 2
 532    active_call_a
 533        .update(cx_a, |call, cx| call.join_channel(channel_1, cx))
 534        .detach();
 535    let join_channel_2 = active_call_a.update(cx_a, |call, cx| call.join_channel(channel_2, cx));
 536
 537    join_channel_2.await.unwrap();
 538
 539    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
 540    executor.run_until_parked();
 541
 542    assert_eq!(channel_id(&room_a, cx_a), Some(channel_2));
 543
 544    // Leave the room
 545    active_call_a
 546        .update(cx_a, |call, cx| call.hang_up(cx))
 547        .await
 548        .unwrap();
 549
 550    // Initiating invites and then joining a channel should fail gracefully
 551    let b_invite = active_call_a.update(cx_a, |call, cx| {
 552        call.invite(client_b.user_id().unwrap(), None, cx)
 553    });
 554    let c_invite = active_call_a.update(cx_a, |call, cx| {
 555        call.invite(client_c.user_id().unwrap(), None, cx)
 556    });
 557
 558    let join_channel = active_call_a.update(cx_a, |call, cx| call.join_channel(channel_1, cx));
 559
 560    b_invite.await.unwrap();
 561    c_invite.await.unwrap();
 562    join_channel.await.unwrap();
 563
 564    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
 565    executor.run_until_parked();
 566
 567    assert_eq!(
 568        room_participants(&room_a, cx_a),
 569        RoomParticipants {
 570            remote: Default::default(),
 571            pending: vec!["user_b".to_string(), "user_c".to_string()]
 572        }
 573    );
 574
 575    assert_eq!(channel_id(&room_a, cx_a), None);
 576
 577    // Leave the room
 578    active_call_a
 579        .update(cx_a, |call, cx| call.hang_up(cx))
 580        .await
 581        .unwrap();
 582
 583    // Simultaneously join channel 1 and call user B and user C from client A.
 584    let join_channel = active_call_a.update(cx_a, |call, cx| call.join_channel(channel_1, cx));
 585
 586    let b_invite = active_call_a.update(cx_a, |call, cx| {
 587        call.invite(client_b.user_id().unwrap(), None, cx)
 588    });
 589    let c_invite = active_call_a.update(cx_a, |call, cx| {
 590        call.invite(client_c.user_id().unwrap(), None, cx)
 591    });
 592
 593    join_channel.await.unwrap();
 594    b_invite.await.unwrap();
 595    c_invite.await.unwrap();
 596
 597    active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
 598    executor.run_until_parked();
 599}
 600
 601#[gpui::test(iterations = 10)]
 602async fn test_room_uniqueness(
 603    executor: BackgroundExecutor,
 604    cx_a: &mut TestAppContext,
 605    cx_a2: &mut TestAppContext,
 606    cx_b: &mut TestAppContext,
 607    cx_b2: &mut TestAppContext,
 608    cx_c: &mut TestAppContext,
 609) {
 610    let mut server = TestServer::start(executor.clone()).await;
 611    let client_a = server.create_client(cx_a, "user_a").await;
 612    let _client_a2 = server.create_client(cx_a2, "user_a").await;
 613    let client_b = server.create_client(cx_b, "user_b").await;
 614    let _client_b2 = server.create_client(cx_b2, "user_b").await;
 615    let client_c = server.create_client(cx_c, "user_c").await;
 616    server
 617        .make_contacts(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
 618        .await;
 619
 620    let active_call_a = cx_a.read(ActiveCall::global);
 621    let active_call_a2 = cx_a2.read(ActiveCall::global);
 622    let active_call_b = cx_b.read(ActiveCall::global);
 623    let active_call_b2 = cx_b2.read(ActiveCall::global);
 624    let active_call_c = cx_c.read(ActiveCall::global);
 625
 626    // Call user B from client A.
 627    active_call_a
 628        .update(cx_a, |call, cx| {
 629            call.invite(client_b.user_id().unwrap(), None, cx)
 630        })
 631        .await
 632        .unwrap();
 633
 634    // Ensure a new room can't be created given user A just created one.
 635    active_call_a2
 636        .update(cx_a2, |call, cx| {
 637            call.invite(client_c.user_id().unwrap(), None, cx)
 638        })
 639        .await
 640        .unwrap_err();
 641
 642    active_call_a2.read_with(cx_a2, |call, _| assert!(call.room().is_none()));
 643
 644    // User B receives the call from user A.
 645
 646    let mut incoming_call_b = active_call_b.read_with(cx_b, |call, _| call.incoming());
 647    let call_b1 = incoming_call_b.next().await.unwrap().unwrap();
 648    assert_eq!(call_b1.calling_user.github_login, "user_a");
 649
 650    // Ensure calling users A and B from client C fails.
 651    active_call_c
 652        .update(cx_c, |call, cx| {
 653            call.invite(client_a.user_id().unwrap(), None, cx)
 654        })
 655        .await
 656        .unwrap_err();
 657    active_call_c
 658        .update(cx_c, |call, cx| {
 659            call.invite(client_b.user_id().unwrap(), None, cx)
 660        })
 661        .await
 662        .unwrap_err();
 663
 664    // Ensure User B can't create a room while they still have an incoming call.
 665    active_call_b2
 666        .update(cx_b2, |call, cx| {
 667            call.invite(client_c.user_id().unwrap(), None, cx)
 668        })
 669        .await
 670        .unwrap_err();
 671
 672    active_call_b2.read_with(cx_b2, |call, _| assert!(call.room().is_none()));
 673
 674    // User B joins the room and calling them after they've joined still fails.
 675    active_call_b
 676        .update(cx_b, |call, cx| call.accept_incoming(cx))
 677        .await
 678        .unwrap();
 679    active_call_c
 680        .update(cx_c, |call, cx| {
 681            call.invite(client_b.user_id().unwrap(), None, cx)
 682        })
 683        .await
 684        .unwrap_err();
 685
 686    // Ensure User B can't create a room while they belong to another room.
 687    active_call_b2
 688        .update(cx_b2, |call, cx| {
 689            call.invite(client_c.user_id().unwrap(), None, cx)
 690        })
 691        .await
 692        .unwrap_err();
 693
 694    active_call_b2.read_with(cx_b2, |call, _| assert!(call.room().is_none()));
 695
 696    // Client C can successfully call client B after client B leaves the room.
 697    active_call_b
 698        .update(cx_b, |call, cx| call.hang_up(cx))
 699        .await
 700        .unwrap();
 701    executor.run_until_parked();
 702    active_call_c
 703        .update(cx_c, |call, cx| {
 704            call.invite(client_b.user_id().unwrap(), None, cx)
 705        })
 706        .await
 707        .unwrap();
 708    executor.run_until_parked();
 709    let call_b2 = incoming_call_b.next().await.unwrap().unwrap();
 710    assert_eq!(call_b2.calling_user.github_login, "user_c");
 711}
 712
 713#[gpui::test(iterations = 10)]
 714async fn test_client_disconnecting_from_room(
 715    executor: BackgroundExecutor,
 716    cx_a: &mut TestAppContext,
 717    cx_b: &mut TestAppContext,
 718) {
 719    let mut server = TestServer::start(executor.clone()).await;
 720    let client_a = server.create_client(cx_a, "user_a").await;
 721    let client_b = server.create_client(cx_b, "user_b").await;
 722    server
 723        .make_contacts(&mut [(&client_a, cx_a), (&client_b, cx_b)])
 724        .await;
 725
 726    let active_call_a = cx_a.read(ActiveCall::global);
 727    let active_call_b = cx_b.read(ActiveCall::global);
 728
 729    // Call user B from client A.
 730    active_call_a
 731        .update(cx_a, |call, cx| {
 732            call.invite(client_b.user_id().unwrap(), None, cx)
 733        })
 734        .await
 735        .unwrap();
 736
 737    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
 738
 739    // User B receives the call and joins the room.
 740
 741    let mut incoming_call_b = active_call_b.read_with(cx_b, |call, _| call.incoming());
 742    incoming_call_b.next().await.unwrap().unwrap();
 743    active_call_b
 744        .update(cx_b, |call, cx| call.accept_incoming(cx))
 745        .await
 746        .unwrap();
 747
 748    let room_b = active_call_b.read_with(cx_b, |call, _| call.room().unwrap().clone());
 749    executor.run_until_parked();
 750    assert_eq!(
 751        room_participants(&room_a, cx_a),
 752        RoomParticipants {
 753            remote: vec!["user_b".to_string()],
 754            pending: Default::default()
 755        }
 756    );
 757    assert_eq!(
 758        room_participants(&room_b, cx_b),
 759        RoomParticipants {
 760            remote: vec!["user_a".to_string()],
 761            pending: Default::default()
 762        }
 763    );
 764
 765    // User A automatically reconnects to the room upon disconnection.
 766    server.disconnect_client(client_a.peer_id().unwrap());
 767    executor.advance_clock(RECEIVE_TIMEOUT);
 768    executor.run_until_parked();
 769    assert_eq!(
 770        room_participants(&room_a, cx_a),
 771        RoomParticipants {
 772            remote: vec!["user_b".to_string()],
 773            pending: Default::default()
 774        }
 775    );
 776    assert_eq!(
 777        room_participants(&room_b, cx_b),
 778        RoomParticipants {
 779            remote: vec!["user_a".to_string()],
 780            pending: Default::default()
 781        }
 782    );
 783
 784    // When user A disconnects, both client A and B clear their room on the active call.
 785    server.forbid_connections();
 786    server.disconnect_client(client_a.peer_id().unwrap());
 787    executor.advance_clock(RECEIVE_TIMEOUT + RECONNECT_TIMEOUT);
 788
 789    active_call_a.read_with(cx_a, |call, _| assert!(call.room().is_none()));
 790
 791    active_call_b.read_with(cx_b, |call, _| assert!(call.room().is_none()));
 792    assert_eq!(
 793        room_participants(&room_a, cx_a),
 794        RoomParticipants {
 795            remote: Default::default(),
 796            pending: Default::default()
 797        }
 798    );
 799    assert_eq!(
 800        room_participants(&room_b, cx_b),
 801        RoomParticipants {
 802            remote: Default::default(),
 803            pending: Default::default()
 804        }
 805    );
 806
 807    // Allow user A to reconnect to the server.
 808    server.allow_connections();
 809    executor.advance_clock(RECEIVE_TIMEOUT);
 810
 811    // Call user B again from client A.
 812    active_call_a
 813        .update(cx_a, |call, cx| {
 814            call.invite(client_b.user_id().unwrap(), None, cx)
 815        })
 816        .await
 817        .unwrap();
 818
 819    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
 820
 821    // User B receives the call and joins the room.
 822
 823    let mut incoming_call_b = active_call_b.read_with(cx_b, |call, _| call.incoming());
 824    incoming_call_b.next().await.unwrap().unwrap();
 825    active_call_b
 826        .update(cx_b, |call, cx| call.accept_incoming(cx))
 827        .await
 828        .unwrap();
 829
 830    let room_b = active_call_b.read_with(cx_b, |call, _| call.room().unwrap().clone());
 831    executor.run_until_parked();
 832    assert_eq!(
 833        room_participants(&room_a, cx_a),
 834        RoomParticipants {
 835            remote: vec!["user_b".to_string()],
 836            pending: Default::default()
 837        }
 838    );
 839    assert_eq!(
 840        room_participants(&room_b, cx_b),
 841        RoomParticipants {
 842            remote: vec!["user_a".to_string()],
 843            pending: Default::default()
 844        }
 845    );
 846
 847    // User B gets disconnected from the LiveKit server, which causes it
 848    // to automatically leave the room.
 849    server
 850        .test_livekit_server
 851        .disconnect_client(client_b.user_id().unwrap().to_string())
 852        .await;
 853    executor.run_until_parked();
 854    active_call_a.update(cx_a, |call, _| assert!(call.room().is_none()));
 855    active_call_b.update(cx_b, |call, _| assert!(call.room().is_none()));
 856    assert_eq!(
 857        room_participants(&room_a, cx_a),
 858        RoomParticipants {
 859            remote: Default::default(),
 860            pending: Default::default()
 861        }
 862    );
 863    assert_eq!(
 864        room_participants(&room_b, cx_b),
 865        RoomParticipants {
 866            remote: Default::default(),
 867            pending: Default::default()
 868        }
 869    );
 870}
 871
 872#[gpui::test(iterations = 10)]
 873async fn test_server_restarts(
 874    executor: BackgroundExecutor,
 875    cx_a: &mut TestAppContext,
 876    cx_b: &mut TestAppContext,
 877    cx_c: &mut TestAppContext,
 878    cx_d: &mut TestAppContext,
 879) {
 880    let mut server = TestServer::start(executor.clone()).await;
 881    let client_a = server.create_client(cx_a, "user_a").await;
 882    client_a
 883        .fs()
 884        .insert_tree("/a", json!({ "a.txt": "a-contents" }))
 885        .await;
 886
 887    // Invite client B to collaborate on a project
 888    let (project_a, _) = client_a.build_local_project("/a", cx_a).await;
 889
 890    let client_b = server.create_client(cx_b, "user_b").await;
 891    let client_c = server.create_client(cx_c, "user_c").await;
 892    let client_d = server.create_client(cx_d, "user_d").await;
 893    server
 894        .make_contacts(&mut [
 895            (&client_a, cx_a),
 896            (&client_b, cx_b),
 897            (&client_c, cx_c),
 898            (&client_d, cx_d),
 899        ])
 900        .await;
 901
 902    let active_call_a = cx_a.read(ActiveCall::global);
 903    let active_call_b = cx_b.read(ActiveCall::global);
 904    let active_call_c = cx_c.read(ActiveCall::global);
 905    let active_call_d = cx_d.read(ActiveCall::global);
 906
 907    // User A calls users B, C, and D.
 908    active_call_a
 909        .update(cx_a, |call, cx| {
 910            call.invite(client_b.user_id().unwrap(), Some(project_a.clone()), cx)
 911        })
 912        .await
 913        .unwrap();
 914    active_call_a
 915        .update(cx_a, |call, cx| {
 916            call.invite(client_c.user_id().unwrap(), Some(project_a.clone()), cx)
 917        })
 918        .await
 919        .unwrap();
 920    active_call_a
 921        .update(cx_a, |call, cx| {
 922            call.invite(client_d.user_id().unwrap(), Some(project_a.clone()), cx)
 923        })
 924        .await
 925        .unwrap();
 926
 927    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
 928
 929    // User B receives the call and joins the room.
 930
 931    let mut incoming_call_b = active_call_b.read_with(cx_b, |call, _| call.incoming());
 932    assert!(incoming_call_b.next().await.unwrap().is_some());
 933    active_call_b
 934        .update(cx_b, |call, cx| call.accept_incoming(cx))
 935        .await
 936        .unwrap();
 937
 938    let room_b = active_call_b.read_with(cx_b, |call, _| call.room().unwrap().clone());
 939
 940    // User C receives the call and joins the room.
 941
 942    let mut incoming_call_c = active_call_c.read_with(cx_c, |call, _| call.incoming());
 943    assert!(incoming_call_c.next().await.unwrap().is_some());
 944    active_call_c
 945        .update(cx_c, |call, cx| call.accept_incoming(cx))
 946        .await
 947        .unwrap();
 948
 949    let room_c = active_call_c.read_with(cx_c, |call, _| call.room().unwrap().clone());
 950
 951    // User D receives the call but doesn't join the room yet.
 952
 953    let mut incoming_call_d = active_call_d.read_with(cx_d, |call, _| call.incoming());
 954    assert!(incoming_call_d.next().await.unwrap().is_some());
 955
 956    executor.run_until_parked();
 957    assert_eq!(
 958        room_participants(&room_a, cx_a),
 959        RoomParticipants {
 960            remote: vec!["user_b".to_string(), "user_c".to_string()],
 961            pending: vec!["user_d".to_string()]
 962        }
 963    );
 964    assert_eq!(
 965        room_participants(&room_b, cx_b),
 966        RoomParticipants {
 967            remote: vec!["user_a".to_string(), "user_c".to_string()],
 968            pending: vec!["user_d".to_string()]
 969        }
 970    );
 971    assert_eq!(
 972        room_participants(&room_c, cx_c),
 973        RoomParticipants {
 974            remote: vec!["user_a".to_string(), "user_b".to_string()],
 975            pending: vec!["user_d".to_string()]
 976        }
 977    );
 978
 979    // The server is torn down.
 980    server.reset().await;
 981
 982    // Users A and B reconnect to the call. User C has troubles reconnecting, so it leaves the room.
 983    client_c.override_establish_connection(|_, cx| cx.spawn(|_| future::pending()));
 984    executor.advance_clock(RECONNECT_TIMEOUT);
 985    assert_eq!(
 986        room_participants(&room_a, cx_a),
 987        RoomParticipants {
 988            remote: vec!["user_b".to_string(), "user_c".to_string()],
 989            pending: vec!["user_d".to_string()]
 990        }
 991    );
 992    assert_eq!(
 993        room_participants(&room_b, cx_b),
 994        RoomParticipants {
 995            remote: vec!["user_a".to_string(), "user_c".to_string()],
 996            pending: vec!["user_d".to_string()]
 997        }
 998    );
 999    assert_eq!(
1000        room_participants(&room_c, cx_c),
1001        RoomParticipants {
1002            remote: vec![],
1003            pending: vec![]
1004        }
1005    );
1006
1007    // User D is notified again of the incoming call and accepts it.
1008    assert!(incoming_call_d.next().await.unwrap().is_some());
1009    active_call_d
1010        .update(cx_d, |call, cx| call.accept_incoming(cx))
1011        .await
1012        .unwrap();
1013    executor.run_until_parked();
1014
1015    let room_d = active_call_d.read_with(cx_d, |call, _| call.room().unwrap().clone());
1016    assert_eq!(
1017        room_participants(&room_a, cx_a),
1018        RoomParticipants {
1019            remote: vec![
1020                "user_b".to_string(),
1021                "user_c".to_string(),
1022                "user_d".to_string(),
1023            ],
1024            pending: vec![]
1025        }
1026    );
1027    assert_eq!(
1028        room_participants(&room_b, cx_b),
1029        RoomParticipants {
1030            remote: vec![
1031                "user_a".to_string(),
1032                "user_c".to_string(),
1033                "user_d".to_string(),
1034            ],
1035            pending: vec![]
1036        }
1037    );
1038    assert_eq!(
1039        room_participants(&room_c, cx_c),
1040        RoomParticipants {
1041            remote: vec![],
1042            pending: vec![]
1043        }
1044    );
1045    assert_eq!(
1046        room_participants(&room_d, cx_d),
1047        RoomParticipants {
1048            remote: vec![
1049                "user_a".to_string(),
1050                "user_b".to_string(),
1051                "user_c".to_string(),
1052            ],
1053            pending: vec![]
1054        }
1055    );
1056
1057    // The server finishes restarting, cleaning up stale connections.
1058    server.start().await.unwrap();
1059    executor.advance_clock(CLEANUP_TIMEOUT);
1060    assert_eq!(
1061        room_participants(&room_a, cx_a),
1062        RoomParticipants {
1063            remote: vec!["user_b".to_string(), "user_d".to_string()],
1064            pending: vec![]
1065        }
1066    );
1067    assert_eq!(
1068        room_participants(&room_b, cx_b),
1069        RoomParticipants {
1070            remote: vec!["user_a".to_string(), "user_d".to_string()],
1071            pending: vec![]
1072        }
1073    );
1074    assert_eq!(
1075        room_participants(&room_c, cx_c),
1076        RoomParticipants {
1077            remote: vec![],
1078            pending: vec![]
1079        }
1080    );
1081    assert_eq!(
1082        room_participants(&room_d, cx_d),
1083        RoomParticipants {
1084            remote: vec!["user_a".to_string(), "user_b".to_string()],
1085            pending: vec![]
1086        }
1087    );
1088
1089    // User D hangs up.
1090    active_call_d
1091        .update(cx_d, |call, cx| call.hang_up(cx))
1092        .await
1093        .unwrap();
1094    executor.run_until_parked();
1095    assert_eq!(
1096        room_participants(&room_a, cx_a),
1097        RoomParticipants {
1098            remote: vec!["user_b".to_string()],
1099            pending: vec![]
1100        }
1101    );
1102    assert_eq!(
1103        room_participants(&room_b, cx_b),
1104        RoomParticipants {
1105            remote: vec!["user_a".to_string()],
1106            pending: vec![]
1107        }
1108    );
1109    assert_eq!(
1110        room_participants(&room_c, cx_c),
1111        RoomParticipants {
1112            remote: vec![],
1113            pending: vec![]
1114        }
1115    );
1116    assert_eq!(
1117        room_participants(&room_d, cx_d),
1118        RoomParticipants {
1119            remote: vec![],
1120            pending: vec![]
1121        }
1122    );
1123
1124    // User B calls user D again.
1125    active_call_b
1126        .update(cx_b, |call, cx| {
1127            call.invite(client_d.user_id().unwrap(), None, cx)
1128        })
1129        .await
1130        .unwrap();
1131
1132    // User D receives the call but doesn't join the room yet.
1133
1134    let mut incoming_call_d = active_call_d.read_with(cx_d, |call, _| call.incoming());
1135    assert!(incoming_call_d.next().await.unwrap().is_some());
1136    executor.run_until_parked();
1137    assert_eq!(
1138        room_participants(&room_a, cx_a),
1139        RoomParticipants {
1140            remote: vec!["user_b".to_string()],
1141            pending: vec!["user_d".to_string()]
1142        }
1143    );
1144    assert_eq!(
1145        room_participants(&room_b, cx_b),
1146        RoomParticipants {
1147            remote: vec!["user_a".to_string()],
1148            pending: vec!["user_d".to_string()]
1149        }
1150    );
1151
1152    // The server is torn down.
1153    server.reset().await;
1154
1155    // Users A and B have troubles reconnecting, so they leave the room.
1156    client_a.override_establish_connection(|_, cx| cx.spawn(|_| future::pending()));
1157    client_b.override_establish_connection(|_, cx| cx.spawn(|_| future::pending()));
1158    client_c.override_establish_connection(|_, cx| cx.spawn(|_| future::pending()));
1159    executor.advance_clock(RECONNECT_TIMEOUT);
1160    assert_eq!(
1161        room_participants(&room_a, cx_a),
1162        RoomParticipants {
1163            remote: vec![],
1164            pending: vec![]
1165        }
1166    );
1167    assert_eq!(
1168        room_participants(&room_b, cx_b),
1169        RoomParticipants {
1170            remote: vec![],
1171            pending: vec![]
1172        }
1173    );
1174
1175    // User D is notified again of the incoming call but doesn't accept it.
1176    assert!(incoming_call_d.next().await.unwrap().is_some());
1177
1178    // The server finishes restarting, cleaning up stale connections and canceling the
1179    // call to user D because the room has become empty.
1180    server.start().await.unwrap();
1181    executor.advance_clock(CLEANUP_TIMEOUT);
1182    assert!(incoming_call_d.next().await.unwrap().is_none());
1183}
1184
1185#[gpui::test(iterations = 10)]
1186async fn test_calls_on_multiple_connections(
1187    executor: BackgroundExecutor,
1188    cx_a: &mut TestAppContext,
1189    cx_b1: &mut TestAppContext,
1190    cx_b2: &mut TestAppContext,
1191) {
1192    let mut server = TestServer::start(executor.clone()).await;
1193    let client_a = server.create_client(cx_a, "user_a").await;
1194    let client_b1 = server.create_client(cx_b1, "user_b").await;
1195    let client_b2 = server.create_client(cx_b2, "user_b").await;
1196    server
1197        .make_contacts(&mut [(&client_a, cx_a), (&client_b1, cx_b1)])
1198        .await;
1199
1200    let active_call_a = cx_a.read(ActiveCall::global);
1201    let active_call_b1 = cx_b1.read(ActiveCall::global);
1202    let active_call_b2 = cx_b2.read(ActiveCall::global);
1203
1204    let mut incoming_call_b1 = active_call_b1.read_with(cx_b1, |call, _| call.incoming());
1205
1206    let mut incoming_call_b2 = active_call_b2.read_with(cx_b2, |call, _| call.incoming());
1207    assert!(incoming_call_b1.next().await.unwrap().is_none());
1208    assert!(incoming_call_b2.next().await.unwrap().is_none());
1209
1210    // Call user B from client A, ensuring both clients for user B ring.
1211    active_call_a
1212        .update(cx_a, |call, cx| {
1213            call.invite(client_b1.user_id().unwrap(), None, cx)
1214        })
1215        .await
1216        .unwrap();
1217    executor.run_until_parked();
1218    assert!(incoming_call_b1.next().await.unwrap().is_some());
1219    assert!(incoming_call_b2.next().await.unwrap().is_some());
1220
1221    // User B declines the call on one of the two connections, causing both connections
1222    // to stop ringing.
1223    active_call_b2.update(cx_b2, |call, cx| call.decline_incoming(cx).unwrap());
1224    executor.run_until_parked();
1225    assert!(incoming_call_b1.next().await.unwrap().is_none());
1226    assert!(incoming_call_b2.next().await.unwrap().is_none());
1227
1228    // Call user B again from client A.
1229    active_call_a
1230        .update(cx_a, |call, cx| {
1231            call.invite(client_b1.user_id().unwrap(), None, cx)
1232        })
1233        .await
1234        .unwrap();
1235    executor.run_until_parked();
1236    assert!(incoming_call_b1.next().await.unwrap().is_some());
1237    assert!(incoming_call_b2.next().await.unwrap().is_some());
1238
1239    // User B accepts the call on one of the two connections, causing both connections
1240    // to stop ringing.
1241    active_call_b2
1242        .update(cx_b2, |call, cx| call.accept_incoming(cx))
1243        .await
1244        .unwrap();
1245    executor.run_until_parked();
1246    assert!(incoming_call_b1.next().await.unwrap().is_none());
1247    assert!(incoming_call_b2.next().await.unwrap().is_none());
1248
1249    // User B disconnects the client that is not on the call. Everything should be fine.
1250    client_b1.disconnect(&cx_b1.to_async());
1251    executor.advance_clock(RECEIVE_TIMEOUT);
1252    client_b1
1253        .authenticate_and_connect(false, &cx_b1.to_async())
1254        .await
1255        .unwrap();
1256
1257    // User B hangs up, and user A calls them again.
1258    active_call_b2
1259        .update(cx_b2, |call, cx| call.hang_up(cx))
1260        .await
1261        .unwrap();
1262    executor.run_until_parked();
1263    active_call_a
1264        .update(cx_a, |call, cx| {
1265            call.invite(client_b1.user_id().unwrap(), None, cx)
1266        })
1267        .await
1268        .unwrap();
1269    executor.run_until_parked();
1270    assert!(incoming_call_b1.next().await.unwrap().is_some());
1271    assert!(incoming_call_b2.next().await.unwrap().is_some());
1272
1273    // User A cancels the call, causing both connections to stop ringing.
1274    active_call_a
1275        .update(cx_a, |call, cx| {
1276            call.cancel_invite(client_b1.user_id().unwrap(), cx)
1277        })
1278        .await
1279        .unwrap();
1280    executor.run_until_parked();
1281    assert!(incoming_call_b1.next().await.unwrap().is_none());
1282    assert!(incoming_call_b2.next().await.unwrap().is_none());
1283
1284    // User A calls user B again.
1285    active_call_a
1286        .update(cx_a, |call, cx| {
1287            call.invite(client_b1.user_id().unwrap(), None, cx)
1288        })
1289        .await
1290        .unwrap();
1291    executor.run_until_parked();
1292    assert!(incoming_call_b1.next().await.unwrap().is_some());
1293    assert!(incoming_call_b2.next().await.unwrap().is_some());
1294
1295    // User A hangs up, causing both connections to stop ringing.
1296    active_call_a
1297        .update(cx_a, |call, cx| call.hang_up(cx))
1298        .await
1299        .unwrap();
1300    executor.run_until_parked();
1301    assert!(incoming_call_b1.next().await.unwrap().is_none());
1302    assert!(incoming_call_b2.next().await.unwrap().is_none());
1303
1304    // User A calls user B again.
1305    active_call_a
1306        .update(cx_a, |call, cx| {
1307            call.invite(client_b1.user_id().unwrap(), None, cx)
1308        })
1309        .await
1310        .unwrap();
1311    executor.run_until_parked();
1312    assert!(incoming_call_b1.next().await.unwrap().is_some());
1313    assert!(incoming_call_b2.next().await.unwrap().is_some());
1314
1315    // User A disconnects, causing both connections to stop ringing.
1316    server.forbid_connections();
1317    server.disconnect_client(client_a.peer_id().unwrap());
1318    executor.advance_clock(RECEIVE_TIMEOUT + RECONNECT_TIMEOUT);
1319    assert!(incoming_call_b1.next().await.unwrap().is_none());
1320    assert!(incoming_call_b2.next().await.unwrap().is_none());
1321
1322    // User A reconnects automatically, then calls user B again.
1323    server.allow_connections();
1324    executor.advance_clock(RECEIVE_TIMEOUT);
1325    active_call_a
1326        .update(cx_a, |call, cx| {
1327            call.invite(client_b1.user_id().unwrap(), None, cx)
1328        })
1329        .await
1330        .unwrap();
1331    executor.run_until_parked();
1332    assert!(incoming_call_b1.next().await.unwrap().is_some());
1333    assert!(incoming_call_b2.next().await.unwrap().is_some());
1334
1335    // User B disconnects all clients, causing user A to no longer see a pending call for them.
1336    server.forbid_connections();
1337    server.disconnect_client(client_b1.peer_id().unwrap());
1338    server.disconnect_client(client_b2.peer_id().unwrap());
1339    executor.advance_clock(RECEIVE_TIMEOUT + RECONNECT_TIMEOUT);
1340
1341    active_call_a.read_with(cx_a, |call, _| assert!(call.room().is_none()));
1342}
1343
1344#[gpui::test(iterations = 10)]
1345async fn test_unshare_project(
1346    executor: BackgroundExecutor,
1347    cx_a: &mut TestAppContext,
1348    cx_b: &mut TestAppContext,
1349    cx_c: &mut TestAppContext,
1350) {
1351    let mut server = TestServer::start(executor.clone()).await;
1352    let client_a = server.create_client(cx_a, "user_a").await;
1353    let client_b = server.create_client(cx_b, "user_b").await;
1354    let client_c = server.create_client(cx_c, "user_c").await;
1355    server
1356        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
1357        .await;
1358
1359    let active_call_a = cx_a.read(ActiveCall::global);
1360    let active_call_b = cx_b.read(ActiveCall::global);
1361
1362    client_a
1363        .fs()
1364        .insert_tree(
1365            "/a",
1366            json!({
1367                "a.txt": "a-contents",
1368                "b.txt": "b-contents",
1369            }),
1370        )
1371        .await;
1372
1373    let (project_a, worktree_id) = client_a.build_local_project("/a", cx_a).await;
1374    let project_id = active_call_a
1375        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
1376        .await
1377        .unwrap();
1378
1379    let worktree_a = project_a.read_with(cx_a, |project, cx| project.worktrees(cx).next().unwrap());
1380    let project_b = client_b.join_remote_project(project_id, cx_b).await;
1381    executor.run_until_parked();
1382
1383    assert!(worktree_a.read_with(cx_a, |tree, _| tree.has_update_observer()));
1384
1385    project_b
1386        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
1387        .await
1388        .unwrap();
1389
1390    // When client B leaves the room, the project becomes read-only.
1391    active_call_b
1392        .update(cx_b, |call, cx| call.hang_up(cx))
1393        .await
1394        .unwrap();
1395    executor.run_until_parked();
1396
1397    assert!(project_b.read_with(cx_b, |project, cx| project.is_disconnected(cx)));
1398
1399    // Client C opens the project.
1400    let project_c = client_c.join_remote_project(project_id, cx_c).await;
1401
1402    // When client A unshares the project, client C's project becomes read-only.
1403    project_a
1404        .update(cx_a, |project, cx| project.unshare(cx))
1405        .unwrap();
1406    executor.run_until_parked();
1407
1408    assert!(worktree_a.read_with(cx_a, |tree, _| !tree.has_update_observer()));
1409
1410    assert!(project_c.read_with(cx_c, |project, cx| project.is_disconnected(cx)));
1411
1412    // Client C can open the project again after client A re-shares.
1413    let project_id = active_call_a
1414        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
1415        .await
1416        .unwrap();
1417    let project_c2 = client_c.join_remote_project(project_id, cx_c).await;
1418    executor.run_until_parked();
1419
1420    assert!(worktree_a.read_with(cx_a, |tree, _| tree.has_update_observer()));
1421    project_c2
1422        .update(cx_c, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
1423        .await
1424        .unwrap();
1425
1426    // When client A (the host) leaves the room, the project gets unshared and guests are notified.
1427    active_call_a
1428        .update(cx_a, |call, cx| call.hang_up(cx))
1429        .await
1430        .unwrap();
1431    executor.run_until_parked();
1432
1433    project_a.read_with(cx_a, |project, _| assert!(!project.is_shared()));
1434
1435    project_c2.read_with(cx_c, |project, cx| {
1436        assert!(project.is_disconnected(cx));
1437        assert!(project.collaborators().is_empty());
1438    });
1439}
1440
1441#[gpui::test(iterations = 10)]
1442async fn test_project_reconnect(
1443    executor: BackgroundExecutor,
1444    cx_a: &mut TestAppContext,
1445    cx_b: &mut TestAppContext,
1446) {
1447    let mut server = TestServer::start(executor.clone()).await;
1448    let client_a = server.create_client(cx_a, "user_a").await;
1449    let client_b = server.create_client(cx_b, "user_b").await;
1450    server
1451        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
1452        .await;
1453
1454    cx_b.update(editor::init);
1455
1456    client_a
1457        .fs()
1458        .insert_tree(
1459            "/root-1",
1460            json!({
1461                "dir1": {
1462                    "a.txt": "a",
1463                    "b.txt": "b",
1464                    "subdir1": {
1465                        "c.txt": "c",
1466                        "d.txt": "d",
1467                        "e.txt": "e",
1468                    }
1469                },
1470                "dir2": {
1471                    "v.txt": "v",
1472                },
1473                "dir3": {
1474                    "w.txt": "w",
1475                    "x.txt": "x",
1476                    "y.txt": "y",
1477                },
1478                "dir4": {
1479                    "z.txt": "z",
1480                },
1481            }),
1482        )
1483        .await;
1484    client_a
1485        .fs()
1486        .insert_tree(
1487            "/root-2",
1488            json!({
1489                "2.txt": "2",
1490            }),
1491        )
1492        .await;
1493    client_a
1494        .fs()
1495        .insert_tree(
1496            "/root-3",
1497            json!({
1498                "3.txt": "3",
1499            }),
1500        )
1501        .await;
1502
1503    let active_call_a = cx_a.read(ActiveCall::global);
1504    let (project_a1, _) = client_a.build_local_project("/root-1/dir1", cx_a).await;
1505    let (project_a2, _) = client_a.build_local_project("/root-2", cx_a).await;
1506    let (project_a3, _) = client_a.build_local_project("/root-3", cx_a).await;
1507    let worktree_a1 =
1508        project_a1.read_with(cx_a, |project, cx| project.worktrees(cx).next().unwrap());
1509    let project1_id = active_call_a
1510        .update(cx_a, |call, cx| call.share_project(project_a1.clone(), cx))
1511        .await
1512        .unwrap();
1513    let project2_id = active_call_a
1514        .update(cx_a, |call, cx| call.share_project(project_a2.clone(), cx))
1515        .await
1516        .unwrap();
1517    let project3_id = active_call_a
1518        .update(cx_a, |call, cx| call.share_project(project_a3.clone(), cx))
1519        .await
1520        .unwrap();
1521
1522    let project_b1 = client_b.join_remote_project(project1_id, cx_b).await;
1523    let project_b2 = client_b.join_remote_project(project2_id, cx_b).await;
1524    let project_b3 = client_b.join_remote_project(project3_id, cx_b).await;
1525    executor.run_until_parked();
1526
1527    let worktree1_id = worktree_a1.read_with(cx_a, |worktree, _| {
1528        assert!(worktree.has_update_observer());
1529        worktree.id()
1530    });
1531    let (worktree_a2, _) = project_a1
1532        .update(cx_a, |p, cx| {
1533            p.find_or_create_worktree("/root-1/dir2", true, cx)
1534        })
1535        .await
1536        .unwrap();
1537    executor.run_until_parked();
1538
1539    let worktree2_id = worktree_a2.read_with(cx_a, |tree, _| {
1540        assert!(tree.has_update_observer());
1541        tree.id()
1542    });
1543    executor.run_until_parked();
1544
1545    project_b1.read_with(cx_b, |project, cx| {
1546        assert!(project.worktree_for_id(worktree2_id, cx).is_some())
1547    });
1548
1549    let buffer_a1 = project_a1
1550        .update(cx_a, |p, cx| p.open_buffer((worktree1_id, "a.txt"), cx))
1551        .await
1552        .unwrap();
1553    let buffer_b1 = project_b1
1554        .update(cx_b, |p, cx| p.open_buffer((worktree1_id, "a.txt"), cx))
1555        .await
1556        .unwrap();
1557
1558    // Drop client A's connection.
1559    server.forbid_connections();
1560    server.disconnect_client(client_a.peer_id().unwrap());
1561    executor.advance_clock(RECEIVE_TIMEOUT);
1562
1563    project_a1.read_with(cx_a, |project, _| {
1564        assert!(project.is_shared());
1565        assert_eq!(project.collaborators().len(), 1);
1566    });
1567
1568    project_b1.read_with(cx_b, |project, cx| {
1569        assert!(!project.is_disconnected(cx));
1570        assert_eq!(project.collaborators().len(), 1);
1571    });
1572
1573    worktree_a1.read_with(cx_a, |tree, _| assert!(tree.has_update_observer()));
1574
1575    // While client A is disconnected, add and remove files from client A's project.
1576    client_a
1577        .fs()
1578        .insert_tree(
1579            "/root-1/dir1/subdir2",
1580            json!({
1581                "f.txt": "f-contents",
1582                "g.txt": "g-contents",
1583                "h.txt": "h-contents",
1584                "i.txt": "i-contents",
1585            }),
1586        )
1587        .await;
1588    client_a
1589        .fs()
1590        .remove_dir(
1591            "/root-1/dir1/subdir1".as_ref(),
1592            RemoveOptions {
1593                recursive: true,
1594                ..Default::default()
1595            },
1596        )
1597        .await
1598        .unwrap();
1599
1600    // While client A is disconnected, add and remove worktrees from client A's project.
1601    project_a1.update(cx_a, |project, cx| {
1602        project.remove_worktree(worktree2_id, cx)
1603    });
1604    let (worktree_a3, _) = project_a1
1605        .update(cx_a, |p, cx| {
1606            p.find_or_create_worktree("/root-1/dir3", true, cx)
1607        })
1608        .await
1609        .unwrap();
1610    worktree_a3
1611        .read_with(cx_a, |tree, _| tree.as_local().unwrap().scan_complete())
1612        .await;
1613
1614    let worktree3_id = worktree_a3.read_with(cx_a, |tree, _| {
1615        assert!(!tree.has_update_observer());
1616        tree.id()
1617    });
1618    executor.run_until_parked();
1619
1620    // While client A is disconnected, close project 2
1621    cx_a.update(|_| drop(project_a2));
1622
1623    // While client A is disconnected, mutate a buffer on both the host and the guest.
1624    buffer_a1.update(cx_a, |buf, cx| buf.edit([(0..0, "W")], None, cx));
1625    buffer_b1.update(cx_b, |buf, cx| buf.edit([(1..1, "Z")], None, cx));
1626    executor.run_until_parked();
1627
1628    // Client A reconnects. Their project is re-shared, and client B re-joins it.
1629    server.allow_connections();
1630    client_a
1631        .authenticate_and_connect(false, &cx_a.to_async())
1632        .await
1633        .unwrap();
1634    executor.run_until_parked();
1635
1636    project_a1.read_with(cx_a, |project, cx| {
1637        assert!(project.is_shared());
1638        assert!(worktree_a1.read(cx).has_update_observer());
1639        assert_eq!(
1640            worktree_a1
1641                .read(cx)
1642                .snapshot()
1643                .paths()
1644                .map(|p| p.to_str().unwrap())
1645                .collect::<Vec<_>>(),
1646            vec![
1647                "a.txt",
1648                "b.txt",
1649                "subdir2",
1650                "subdir2/f.txt",
1651                "subdir2/g.txt",
1652                "subdir2/h.txt",
1653                "subdir2/i.txt"
1654            ]
1655        );
1656        assert!(worktree_a3.read(cx).has_update_observer());
1657        assert_eq!(
1658            worktree_a3
1659                .read(cx)
1660                .snapshot()
1661                .paths()
1662                .map(|p| p.to_str().unwrap())
1663                .collect::<Vec<_>>(),
1664            vec!["w.txt", "x.txt", "y.txt"]
1665        );
1666    });
1667
1668    project_b1.read_with(cx_b, |project, cx| {
1669        assert!(!project.is_disconnected(cx));
1670        assert_eq!(
1671            project
1672                .worktree_for_id(worktree1_id, cx)
1673                .unwrap()
1674                .read(cx)
1675                .snapshot()
1676                .paths()
1677                .map(|p| p.to_str().unwrap())
1678                .collect::<Vec<_>>(),
1679            vec![
1680                "a.txt",
1681                "b.txt",
1682                "subdir2",
1683                "subdir2/f.txt",
1684                "subdir2/g.txt",
1685                "subdir2/h.txt",
1686                "subdir2/i.txt"
1687            ]
1688        );
1689        assert!(project.worktree_for_id(worktree2_id, cx).is_none());
1690        assert_eq!(
1691            project
1692                .worktree_for_id(worktree3_id, cx)
1693                .unwrap()
1694                .read(cx)
1695                .snapshot()
1696                .paths()
1697                .map(|p| p.to_str().unwrap())
1698                .collect::<Vec<_>>(),
1699            vec!["w.txt", "x.txt", "y.txt"]
1700        );
1701    });
1702
1703    project_b2.read_with(cx_b, |project, cx| assert!(project.is_disconnected(cx)));
1704
1705    project_b3.read_with(cx_b, |project, cx| assert!(!project.is_disconnected(cx)));
1706
1707    buffer_a1.read_with(cx_a, |buffer, _| assert_eq!(buffer.text(), "WaZ"));
1708
1709    buffer_b1.read_with(cx_b, |buffer, _| assert_eq!(buffer.text(), "WaZ"));
1710
1711    // Drop client B's connection.
1712    server.forbid_connections();
1713    server.disconnect_client(client_b.peer_id().unwrap());
1714    executor.advance_clock(RECEIVE_TIMEOUT);
1715
1716    // While client B is disconnected, add and remove files from client A's project
1717    client_a
1718        .fs()
1719        .insert_file("/root-1/dir1/subdir2/j.txt", "j-contents".into())
1720        .await;
1721    client_a
1722        .fs()
1723        .remove_file("/root-1/dir1/subdir2/i.txt".as_ref(), Default::default())
1724        .await
1725        .unwrap();
1726
1727    // While client B is disconnected, add and remove worktrees from client A's project.
1728    let (worktree_a4, _) = project_a1
1729        .update(cx_a, |p, cx| {
1730            p.find_or_create_worktree("/root-1/dir4", true, cx)
1731        })
1732        .await
1733        .unwrap();
1734    executor.run_until_parked();
1735
1736    let worktree4_id = worktree_a4.read_with(cx_a, |tree, _| {
1737        assert!(tree.has_update_observer());
1738        tree.id()
1739    });
1740    project_a1.update(cx_a, |project, cx| {
1741        project.remove_worktree(worktree3_id, cx)
1742    });
1743    executor.run_until_parked();
1744
1745    // While client B is disconnected, mutate a buffer on both the host and the guest.
1746    buffer_a1.update(cx_a, |buf, cx| buf.edit([(1..1, "X")], None, cx));
1747    buffer_b1.update(cx_b, |buf, cx| buf.edit([(2..2, "Y")], None, cx));
1748    executor.run_until_parked();
1749
1750    // While disconnected, close project 3
1751    cx_a.update(|_| drop(project_a3));
1752
1753    // Client B reconnects. They re-join the room and the remaining shared project.
1754    server.allow_connections();
1755    client_b
1756        .authenticate_and_connect(false, &cx_b.to_async())
1757        .await
1758        .unwrap();
1759    executor.run_until_parked();
1760
1761    project_b1.read_with(cx_b, |project, cx| {
1762        assert!(!project.is_disconnected(cx));
1763        assert_eq!(
1764            project
1765                .worktree_for_id(worktree1_id, cx)
1766                .unwrap()
1767                .read(cx)
1768                .snapshot()
1769                .paths()
1770                .map(|p| p.to_str().unwrap())
1771                .collect::<Vec<_>>(),
1772            vec![
1773                "a.txt",
1774                "b.txt",
1775                "subdir2",
1776                "subdir2/f.txt",
1777                "subdir2/g.txt",
1778                "subdir2/h.txt",
1779                "subdir2/j.txt"
1780            ]
1781        );
1782        assert!(project.worktree_for_id(worktree2_id, cx).is_none());
1783        assert_eq!(
1784            project
1785                .worktree_for_id(worktree4_id, cx)
1786                .unwrap()
1787                .read(cx)
1788                .snapshot()
1789                .paths()
1790                .map(|p| p.to_str().unwrap())
1791                .collect::<Vec<_>>(),
1792            vec!["z.txt"]
1793        );
1794    });
1795
1796    project_b3.read_with(cx_b, |project, cx| assert!(project.is_disconnected(cx)));
1797
1798    buffer_a1.read_with(cx_a, |buffer, _| assert_eq!(buffer.text(), "WXaYZ"));
1799
1800    buffer_b1.read_with(cx_b, |buffer, _| assert_eq!(buffer.text(), "WXaYZ"));
1801}
1802
1803#[gpui::test(iterations = 10)]
1804async fn test_active_call_events(
1805    executor: BackgroundExecutor,
1806    cx_a: &mut TestAppContext,
1807    cx_b: &mut TestAppContext,
1808) {
1809    let mut server = TestServer::start(executor.clone()).await;
1810    let client_a = server.create_client(cx_a, "user_a").await;
1811    let client_b = server.create_client(cx_b, "user_b").await;
1812    client_a.fs().insert_tree("/a", json!({})).await;
1813    client_b.fs().insert_tree("/b", json!({})).await;
1814
1815    let (project_a, _) = client_a.build_local_project("/a", cx_a).await;
1816    let (project_b, _) = client_b.build_local_project("/b", cx_b).await;
1817
1818    server
1819        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
1820        .await;
1821    let active_call_a = cx_a.read(ActiveCall::global);
1822    let active_call_b = cx_b.read(ActiveCall::global);
1823
1824    let events_a = active_call_events(cx_a);
1825    let events_b = active_call_events(cx_b);
1826
1827    let project_a_id = active_call_a
1828        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
1829        .await
1830        .unwrap();
1831    executor.run_until_parked();
1832    assert_eq!(mem::take(&mut *events_a.borrow_mut()), vec![]);
1833    assert_eq!(
1834        mem::take(&mut *events_b.borrow_mut()),
1835        vec![room::Event::RemoteProjectShared {
1836            owner: Arc::new(User {
1837                id: client_a.user_id().unwrap(),
1838                github_login: "user_a".to_string(),
1839                avatar_uri: "avatar_a".into(),
1840            }),
1841            project_id: project_a_id,
1842            worktree_root_names: vec!["a".to_string()],
1843        }]
1844    );
1845
1846    let project_b_id = active_call_b
1847        .update(cx_b, |call, cx| call.share_project(project_b.clone(), cx))
1848        .await
1849        .unwrap();
1850    executor.run_until_parked();
1851    assert_eq!(
1852        mem::take(&mut *events_a.borrow_mut()),
1853        vec![room::Event::RemoteProjectShared {
1854            owner: Arc::new(User {
1855                id: client_b.user_id().unwrap(),
1856                github_login: "user_b".to_string(),
1857                avatar_uri: "avatar_b".into(),
1858            }),
1859            project_id: project_b_id,
1860            worktree_root_names: vec!["b".to_string()]
1861        }]
1862    );
1863    assert_eq!(mem::take(&mut *events_b.borrow_mut()), vec![]);
1864
1865    // Sharing a project twice is idempotent.
1866    let project_b_id_2 = active_call_b
1867        .update(cx_b, |call, cx| call.share_project(project_b.clone(), cx))
1868        .await
1869        .unwrap();
1870    assert_eq!(project_b_id_2, project_b_id);
1871    executor.run_until_parked();
1872    assert_eq!(mem::take(&mut *events_a.borrow_mut()), vec![]);
1873    assert_eq!(mem::take(&mut *events_b.borrow_mut()), vec![]);
1874
1875    // Unsharing a project should dispatch the RemoteProjectUnshared event.
1876    active_call_a
1877        .update(cx_a, |call, cx| call.hang_up(cx))
1878        .await
1879        .unwrap();
1880    executor.run_until_parked();
1881
1882    assert_eq!(
1883        mem::take(&mut *events_a.borrow_mut()),
1884        vec![room::Event::RoomLeft { channel_id: None }]
1885    );
1886    assert_eq!(
1887        mem::take(&mut *events_b.borrow_mut()),
1888        vec![room::Event::RemoteProjectUnshared {
1889            project_id: project_a_id,
1890        }]
1891    );
1892}
1893
1894fn active_call_events(cx: &mut TestAppContext) -> Rc<RefCell<Vec<room::Event>>> {
1895    let events = Rc::new(RefCell::new(Vec::new()));
1896    let active_call = cx.read(ActiveCall::global);
1897    cx.update({
1898        let events = events.clone();
1899        |cx| {
1900            cx.subscribe(&active_call, move |_, event, _| {
1901                events.borrow_mut().push(event.clone())
1902            })
1903            .detach()
1904        }
1905    });
1906    events
1907}
1908
1909#[gpui::test]
1910async fn test_mute_deafen(
1911    executor: BackgroundExecutor,
1912    cx_a: &mut TestAppContext,
1913    cx_b: &mut TestAppContext,
1914    cx_c: &mut TestAppContext,
1915) {
1916    let mut server = TestServer::start(executor.clone()).await;
1917    let client_a = server.create_client(cx_a, "user_a").await;
1918    let client_b = server.create_client(cx_b, "user_b").await;
1919    let client_c = server.create_client(cx_c, "user_c").await;
1920
1921    server
1922        .make_contacts(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
1923        .await;
1924
1925    let active_call_a = cx_a.read(ActiveCall::global);
1926    let active_call_b = cx_b.read(ActiveCall::global);
1927    let active_call_c = cx_c.read(ActiveCall::global);
1928
1929    // User A calls user B, B answers.
1930    active_call_a
1931        .update(cx_a, |call, cx| {
1932            call.invite(client_b.user_id().unwrap(), None, cx)
1933        })
1934        .await
1935        .unwrap();
1936    executor.run_until_parked();
1937    active_call_b
1938        .update(cx_b, |call, cx| call.accept_incoming(cx))
1939        .await
1940        .unwrap();
1941    executor.run_until_parked();
1942
1943    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
1944    let room_b = active_call_b.read_with(cx_b, |call, _| call.room().unwrap().clone());
1945
1946    room_a.read_with(cx_a, |room, _| assert!(!room.is_muted()));
1947    room_b.read_with(cx_b, |room, _| assert!(!room.is_muted()));
1948
1949    // Users A and B are both unmuted.
1950    assert_eq!(
1951        participant_audio_state(&room_a, cx_a),
1952        &[ParticipantAudioState {
1953            user_id: client_b.user_id().unwrap(),
1954            is_muted: false,
1955            audio_tracks_playing: vec![true],
1956        }]
1957    );
1958    assert_eq!(
1959        participant_audio_state(&room_b, cx_b),
1960        &[ParticipantAudioState {
1961            user_id: client_a.user_id().unwrap(),
1962            is_muted: false,
1963            audio_tracks_playing: vec![true],
1964        }]
1965    );
1966
1967    // User A mutes
1968    room_a.update(cx_a, |room, cx| room.toggle_mute(cx));
1969    executor.run_until_parked();
1970
1971    // User A hears user B, but B doesn't hear A.
1972    room_a.read_with(cx_a, |room, _| assert!(room.is_muted()));
1973    room_b.read_with(cx_b, |room, _| assert!(!room.is_muted()));
1974    assert_eq!(
1975        participant_audio_state(&room_a, cx_a),
1976        &[ParticipantAudioState {
1977            user_id: client_b.user_id().unwrap(),
1978            is_muted: false,
1979            audio_tracks_playing: vec![true],
1980        }]
1981    );
1982    assert_eq!(
1983        participant_audio_state(&room_b, cx_b),
1984        &[ParticipantAudioState {
1985            user_id: client_a.user_id().unwrap(),
1986            is_muted: true,
1987            audio_tracks_playing: vec![true],
1988        }]
1989    );
1990
1991    // User A deafens
1992    room_a.update(cx_a, |room, cx| room.toggle_deafen(cx));
1993    executor.run_until_parked();
1994
1995    // User A does not hear user B.
1996    room_a.read_with(cx_a, |room, _| assert!(room.is_muted()));
1997    room_b.read_with(cx_b, |room, _| assert!(!room.is_muted()));
1998    assert_eq!(
1999        participant_audio_state(&room_a, cx_a),
2000        &[ParticipantAudioState {
2001            user_id: client_b.user_id().unwrap(),
2002            is_muted: false,
2003            audio_tracks_playing: vec![false],
2004        }]
2005    );
2006    assert_eq!(
2007        participant_audio_state(&room_b, cx_b),
2008        &[ParticipantAudioState {
2009            user_id: client_a.user_id().unwrap(),
2010            is_muted: true,
2011            audio_tracks_playing: vec![true],
2012        }]
2013    );
2014
2015    // User B calls user C, C joins.
2016    active_call_b
2017        .update(cx_b, |call, cx| {
2018            call.invite(client_c.user_id().unwrap(), None, cx)
2019        })
2020        .await
2021        .unwrap();
2022    executor.run_until_parked();
2023    active_call_c
2024        .update(cx_c, |call, cx| call.accept_incoming(cx))
2025        .await
2026        .unwrap();
2027    executor.run_until_parked();
2028
2029    // User A does not hear users B or C.
2030    assert_eq!(
2031        participant_audio_state(&room_a, cx_a),
2032        &[
2033            ParticipantAudioState {
2034                user_id: client_b.user_id().unwrap(),
2035                is_muted: false,
2036                audio_tracks_playing: vec![false],
2037            },
2038            ParticipantAudioState {
2039                user_id: client_c.user_id().unwrap(),
2040                is_muted: false,
2041                audio_tracks_playing: vec![false],
2042            }
2043        ]
2044    );
2045    assert_eq!(
2046        participant_audio_state(&room_b, cx_b),
2047        &[
2048            ParticipantAudioState {
2049                user_id: client_a.user_id().unwrap(),
2050                is_muted: true,
2051                audio_tracks_playing: vec![true],
2052            },
2053            ParticipantAudioState {
2054                user_id: client_c.user_id().unwrap(),
2055                is_muted: false,
2056                audio_tracks_playing: vec![true],
2057            }
2058        ]
2059    );
2060
2061    #[derive(PartialEq, Eq, Debug)]
2062    struct ParticipantAudioState {
2063        user_id: u64,
2064        is_muted: bool,
2065        audio_tracks_playing: Vec<bool>,
2066    }
2067
2068    fn participant_audio_state(
2069        room: &Model<Room>,
2070        cx: &TestAppContext,
2071    ) -> Vec<ParticipantAudioState> {
2072        room.read_with(cx, |room, _| {
2073            room.remote_participants()
2074                .iter()
2075                .map(|(user_id, participant)| ParticipantAudioState {
2076                    user_id: *user_id,
2077                    is_muted: participant.muted,
2078                    audio_tracks_playing: participant
2079                        .audio_tracks
2080                        .values()
2081                        .map({
2082                            #[cfg(target_os = "macos")]
2083                            {
2084                                |track| track.is_playing()
2085                            }
2086
2087                            #[cfg(not(target_os = "macos"))]
2088                            {
2089                                |(track, _)| track.rtc_track().enabled()
2090                            }
2091                        })
2092                        .collect(),
2093                })
2094                .collect::<Vec<_>>()
2095        })
2096    }
2097}
2098
2099#[gpui::test(iterations = 10)]
2100async fn test_room_location(
2101    executor: BackgroundExecutor,
2102    cx_a: &mut TestAppContext,
2103    cx_b: &mut TestAppContext,
2104) {
2105    let mut server = TestServer::start(executor.clone()).await;
2106    let client_a = server.create_client(cx_a, "user_a").await;
2107    let client_b = server.create_client(cx_b, "user_b").await;
2108    client_a.fs().insert_tree("/a", json!({})).await;
2109    client_b.fs().insert_tree("/b", json!({})).await;
2110
2111    let active_call_a = cx_a.read(ActiveCall::global);
2112    let active_call_b = cx_b.read(ActiveCall::global);
2113
2114    let a_notified = Rc::new(Cell::new(false));
2115    cx_a.update({
2116        let notified = a_notified.clone();
2117        |cx| {
2118            cx.observe(&active_call_a, move |_, _| notified.set(true))
2119                .detach()
2120        }
2121    });
2122
2123    let b_notified = Rc::new(Cell::new(false));
2124    cx_b.update({
2125        let b_notified = b_notified.clone();
2126        |cx| {
2127            cx.observe(&active_call_b, move |_, _| b_notified.set(true))
2128                .detach()
2129        }
2130    });
2131
2132    let (project_a, _) = client_a.build_local_project("/a", cx_a).await;
2133    active_call_a
2134        .update(cx_a, |call, cx| call.set_location(Some(&project_a), cx))
2135        .await
2136        .unwrap();
2137    let (project_b, _) = client_b.build_local_project("/b", cx_b).await;
2138
2139    server
2140        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
2141        .await;
2142
2143    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
2144
2145    let room_b = active_call_b.read_with(cx_b, |call, _| call.room().unwrap().clone());
2146    executor.run_until_parked();
2147    assert!(a_notified.take());
2148    assert_eq!(
2149        participant_locations(&room_a, cx_a),
2150        vec![("user_b".to_string(), ParticipantLocation::External)]
2151    );
2152    assert!(b_notified.take());
2153    assert_eq!(
2154        participant_locations(&room_b, cx_b),
2155        vec![("user_a".to_string(), ParticipantLocation::UnsharedProject)]
2156    );
2157
2158    let project_a_id = active_call_a
2159        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
2160        .await
2161        .unwrap();
2162    executor.run_until_parked();
2163    assert!(a_notified.take());
2164    assert_eq!(
2165        participant_locations(&room_a, cx_a),
2166        vec![("user_b".to_string(), ParticipantLocation::External)]
2167    );
2168    assert!(b_notified.take());
2169    assert_eq!(
2170        participant_locations(&room_b, cx_b),
2171        vec![(
2172            "user_a".to_string(),
2173            ParticipantLocation::SharedProject {
2174                project_id: project_a_id
2175            }
2176        )]
2177    );
2178
2179    let project_b_id = active_call_b
2180        .update(cx_b, |call, cx| call.share_project(project_b.clone(), cx))
2181        .await
2182        .unwrap();
2183    executor.run_until_parked();
2184    assert!(a_notified.take());
2185    assert_eq!(
2186        participant_locations(&room_a, cx_a),
2187        vec![("user_b".to_string(), ParticipantLocation::External)]
2188    );
2189    assert!(b_notified.take());
2190    assert_eq!(
2191        participant_locations(&room_b, cx_b),
2192        vec![(
2193            "user_a".to_string(),
2194            ParticipantLocation::SharedProject {
2195                project_id: project_a_id
2196            }
2197        )]
2198    );
2199
2200    active_call_b
2201        .update(cx_b, |call, cx| call.set_location(Some(&project_b), cx))
2202        .await
2203        .unwrap();
2204    executor.run_until_parked();
2205    assert!(a_notified.take());
2206    assert_eq!(
2207        participant_locations(&room_a, cx_a),
2208        vec![(
2209            "user_b".to_string(),
2210            ParticipantLocation::SharedProject {
2211                project_id: project_b_id
2212            }
2213        )]
2214    );
2215    assert!(b_notified.take());
2216    assert_eq!(
2217        participant_locations(&room_b, cx_b),
2218        vec![(
2219            "user_a".to_string(),
2220            ParticipantLocation::SharedProject {
2221                project_id: project_a_id
2222            }
2223        )]
2224    );
2225
2226    active_call_b
2227        .update(cx_b, |call, cx| call.set_location(None, cx))
2228        .await
2229        .unwrap();
2230    executor.run_until_parked();
2231    assert!(a_notified.take());
2232    assert_eq!(
2233        participant_locations(&room_a, cx_a),
2234        vec![("user_b".to_string(), ParticipantLocation::External)]
2235    );
2236    assert!(b_notified.take());
2237    assert_eq!(
2238        participant_locations(&room_b, cx_b),
2239        vec![(
2240            "user_a".to_string(),
2241            ParticipantLocation::SharedProject {
2242                project_id: project_a_id
2243            }
2244        )]
2245    );
2246
2247    fn participant_locations(
2248        room: &Model<Room>,
2249        cx: &TestAppContext,
2250    ) -> Vec<(String, ParticipantLocation)> {
2251        room.read_with(cx, |room, _| {
2252            room.remote_participants()
2253                .values()
2254                .map(|participant| {
2255                    (
2256                        participant.user.github_login.to_string(),
2257                        participant.location,
2258                    )
2259                })
2260                .collect()
2261        })
2262    }
2263}
2264
2265#[gpui::test(iterations = 10)]
2266async fn test_propagate_saves_and_fs_changes(
2267    executor: BackgroundExecutor,
2268    cx_a: &mut TestAppContext,
2269    cx_b: &mut TestAppContext,
2270    cx_c: &mut TestAppContext,
2271) {
2272    let mut server = TestServer::start(executor.clone()).await;
2273    let client_a = server.create_client(cx_a, "user_a").await;
2274    let client_b = server.create_client(cx_b, "user_b").await;
2275    let client_c = server.create_client(cx_c, "user_c").await;
2276
2277    server
2278        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
2279        .await;
2280    let active_call_a = cx_a.read(ActiveCall::global);
2281
2282    let rust = Arc::new(Language::new(
2283        LanguageConfig {
2284            name: "Rust".into(),
2285            matcher: LanguageMatcher {
2286                path_suffixes: vec!["rs".to_string()],
2287                ..Default::default()
2288            },
2289            ..Default::default()
2290        },
2291        Some(tree_sitter_rust::LANGUAGE.into()),
2292    ));
2293    let javascript = Arc::new(Language::new(
2294        LanguageConfig {
2295            name: "JavaScript".into(),
2296            matcher: LanguageMatcher {
2297                path_suffixes: vec!["js".to_string()],
2298                ..Default::default()
2299            },
2300            ..Default::default()
2301        },
2302        Some(tree_sitter_rust::LANGUAGE.into()),
2303    ));
2304    for client in [&client_a, &client_b, &client_c] {
2305        client.language_registry().add(rust.clone());
2306        client.language_registry().add(javascript.clone());
2307    }
2308
2309    client_a
2310        .fs()
2311        .insert_tree(
2312            "/a",
2313            json!({
2314                "file1.rs": "",
2315                "file2": ""
2316            }),
2317        )
2318        .await;
2319    let (project_a, worktree_id) = client_a.build_local_project("/a", cx_a).await;
2320
2321    let worktree_a = project_a.read_with(cx_a, |p, cx| p.worktrees(cx).next().unwrap());
2322    let project_id = active_call_a
2323        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
2324        .await
2325        .unwrap();
2326
2327    // Join that worktree as clients B and C.
2328    let project_b = client_b.join_remote_project(project_id, cx_b).await;
2329    let project_c = client_c.join_remote_project(project_id, cx_c).await;
2330
2331    let worktree_b = project_b.read_with(cx_b, |p, cx| p.worktrees(cx).next().unwrap());
2332
2333    let worktree_c = project_c.read_with(cx_c, |p, cx| p.worktrees(cx).next().unwrap());
2334
2335    // Open and edit a buffer as both guests B and C.
2336    let buffer_b = project_b
2337        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "file1.rs"), cx))
2338        .await
2339        .unwrap();
2340    let buffer_c = project_c
2341        .update(cx_c, |p, cx| p.open_buffer((worktree_id, "file1.rs"), cx))
2342        .await
2343        .unwrap();
2344
2345    buffer_b.read_with(cx_b, |buffer, _| {
2346        assert_eq!(buffer.language().unwrap().name(), "Rust".into());
2347    });
2348
2349    buffer_c.read_with(cx_c, |buffer, _| {
2350        assert_eq!(buffer.language().unwrap().name(), "Rust".into());
2351    });
2352    buffer_b.update(cx_b, |buf, cx| buf.edit([(0..0, "i-am-b, ")], None, cx));
2353    buffer_c.update(cx_c, |buf, cx| buf.edit([(0..0, "i-am-c, ")], None, cx));
2354
2355    // Open and edit that buffer as the host.
2356    let buffer_a = project_a
2357        .update(cx_a, |p, cx| p.open_buffer((worktree_id, "file1.rs"), cx))
2358        .await
2359        .unwrap();
2360
2361    executor.run_until_parked();
2362
2363    buffer_a.read_with(cx_a, |buf, _| assert_eq!(buf.text(), "i-am-c, i-am-b, "));
2364    buffer_a.update(cx_a, |buf, cx| {
2365        buf.edit([(buf.len()..buf.len(), "i-am-a")], None, cx)
2366    });
2367
2368    executor.run_until_parked();
2369
2370    buffer_a.read_with(cx_a, |buf, _| {
2371        assert_eq!(buf.text(), "i-am-c, i-am-b, i-am-a");
2372    });
2373
2374    buffer_b.read_with(cx_b, |buf, _| {
2375        assert_eq!(buf.text(), "i-am-c, i-am-b, i-am-a");
2376    });
2377
2378    buffer_c.read_with(cx_c, |buf, _| {
2379        assert_eq!(buf.text(), "i-am-c, i-am-b, i-am-a");
2380    });
2381
2382    // Edit the buffer as the host and concurrently save as guest B.
2383    let save_b = project_b.update(cx_b, |project, cx| {
2384        project.save_buffer(buffer_b.clone(), cx)
2385    });
2386    buffer_a.update(cx_a, |buf, cx| buf.edit([(0..0, "hi-a, ")], None, cx));
2387    save_b.await.unwrap();
2388    assert_eq!(
2389        client_a.fs().load("/a/file1.rs".as_ref()).await.unwrap(),
2390        "hi-a, i-am-c, i-am-b, i-am-a"
2391    );
2392
2393    executor.run_until_parked();
2394
2395    buffer_a.read_with(cx_a, |buf, _| assert!(!buf.is_dirty()));
2396
2397    buffer_b.read_with(cx_b, |buf, _| assert!(!buf.is_dirty()));
2398
2399    buffer_c.read_with(cx_c, |buf, _| assert!(!buf.is_dirty()));
2400
2401    // Make changes on host's file system, see those changes on guest worktrees.
2402    client_a
2403        .fs()
2404        .rename(
2405            "/a/file1.rs".as_ref(),
2406            "/a/file1.js".as_ref(),
2407            Default::default(),
2408        )
2409        .await
2410        .unwrap();
2411    client_a
2412        .fs()
2413        .rename("/a/file2".as_ref(), "/a/file3".as_ref(), Default::default())
2414        .await
2415        .unwrap();
2416    client_a.fs().insert_file("/a/file4", "4".into()).await;
2417    executor.run_until_parked();
2418
2419    worktree_a.read_with(cx_a, |tree, _| {
2420        assert_eq!(
2421            tree.paths()
2422                .map(|p| p.to_string_lossy())
2423                .collect::<Vec<_>>(),
2424            ["file1.js", "file3", "file4"]
2425        )
2426    });
2427
2428    worktree_b.read_with(cx_b, |tree, _| {
2429        assert_eq!(
2430            tree.paths()
2431                .map(|p| p.to_string_lossy())
2432                .collect::<Vec<_>>(),
2433            ["file1.js", "file3", "file4"]
2434        )
2435    });
2436
2437    worktree_c.read_with(cx_c, |tree, _| {
2438        assert_eq!(
2439            tree.paths()
2440                .map(|p| p.to_string_lossy())
2441                .collect::<Vec<_>>(),
2442            ["file1.js", "file3", "file4"]
2443        )
2444    });
2445
2446    // Ensure buffer files are updated as well.
2447
2448    buffer_a.read_with(cx_a, |buffer, _| {
2449        assert_eq!(buffer.file().unwrap().path().to_str(), Some("file1.js"));
2450        assert_eq!(buffer.language().unwrap().name(), "JavaScript".into());
2451    });
2452
2453    buffer_b.read_with(cx_b, |buffer, _| {
2454        assert_eq!(buffer.file().unwrap().path().to_str(), Some("file1.js"));
2455        assert_eq!(buffer.language().unwrap().name(), "JavaScript".into());
2456    });
2457
2458    buffer_c.read_with(cx_c, |buffer, _| {
2459        assert_eq!(buffer.file().unwrap().path().to_str(), Some("file1.js"));
2460        assert_eq!(buffer.language().unwrap().name(), "JavaScript".into());
2461    });
2462
2463    let new_buffer_a = project_a
2464        .update(cx_a, |p, cx| p.create_buffer(cx))
2465        .await
2466        .unwrap();
2467
2468    let new_buffer_id = new_buffer_a.read_with(cx_a, |buffer, _| buffer.remote_id());
2469    let new_buffer_b = project_b
2470        .update(cx_b, |p, cx| p.open_buffer_by_id(new_buffer_id, cx))
2471        .await
2472        .unwrap();
2473
2474    new_buffer_b.read_with(cx_b, |buffer, _| {
2475        assert!(buffer.file().is_none());
2476    });
2477
2478    new_buffer_a.update(cx_a, |buffer, cx| {
2479        buffer.edit([(0..0, "ok")], None, cx);
2480    });
2481    project_a
2482        .update(cx_a, |project, cx| {
2483            let path = ProjectPath {
2484                path: Arc::from(Path::new("file3.rs")),
2485                worktree_id: worktree_a.read(cx).id(),
2486            };
2487
2488            project.save_buffer_as(new_buffer_a.clone(), path, cx)
2489        })
2490        .await
2491        .unwrap();
2492
2493    executor.run_until_parked();
2494
2495    new_buffer_b.read_with(cx_b, |buffer_b, _| {
2496        assert_eq!(
2497            buffer_b.file().unwrap().path().as_ref(),
2498            Path::new("file3.rs")
2499        );
2500
2501        new_buffer_a.read_with(cx_a, |buffer_a, _| {
2502            assert_eq!(buffer_b.saved_mtime(), buffer_a.saved_mtime());
2503            assert_eq!(buffer_b.saved_version(), buffer_a.saved_version());
2504        });
2505    });
2506}
2507
2508#[gpui::test(iterations = 10)]
2509async fn test_git_diff_base_change(
2510    executor: BackgroundExecutor,
2511    cx_a: &mut TestAppContext,
2512    cx_b: &mut TestAppContext,
2513) {
2514    let mut server = TestServer::start(executor.clone()).await;
2515    let client_a = server.create_client(cx_a, "user_a").await;
2516    let client_b = server.create_client(cx_b, "user_b").await;
2517    server
2518        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
2519        .await;
2520    let active_call_a = cx_a.read(ActiveCall::global);
2521
2522    client_a
2523        .fs()
2524        .insert_tree(
2525            "/dir",
2526            json!({
2527            ".git": {},
2528            "sub": {
2529                ".git": {},
2530                "b.txt": "
2531                    one
2532                    two
2533                    three
2534                ".unindent(),
2535            },
2536            "a.txt": "
2537                    one
2538                    two
2539                    three
2540                ".unindent(),
2541            }),
2542        )
2543        .await;
2544
2545    let (project_local, worktree_id) = client_a.build_local_project("/dir", cx_a).await;
2546    let project_id = active_call_a
2547        .update(cx_a, |call, cx| {
2548            call.share_project(project_local.clone(), cx)
2549        })
2550        .await
2551        .unwrap();
2552
2553    let project_remote = client_b.join_remote_project(project_id, cx_b).await;
2554
2555    let diff_base = "
2556        one
2557        three
2558    "
2559    .unindent();
2560
2561    let new_diff_base = "
2562        one
2563        two
2564    "
2565    .unindent();
2566
2567    client_a.fs().set_index_for_repo(
2568        Path::new("/dir/.git"),
2569        &[(Path::new("a.txt"), diff_base.clone())],
2570    );
2571
2572    // Create the buffer
2573    let buffer_local_a = project_local
2574        .update(cx_a, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
2575        .await
2576        .unwrap();
2577    let change_set_local_a = project_local
2578        .update(cx_a, |p, cx| {
2579            p.open_unstaged_changes(buffer_local_a.clone(), cx)
2580        })
2581        .await
2582        .unwrap();
2583
2584    // Wait for it to catch up to the new diff
2585    executor.run_until_parked();
2586    change_set_local_a.read_with(cx_a, |change_set, cx| {
2587        let buffer = buffer_local_a.read(cx);
2588        assert_eq!(
2589            change_set.base_text_string(cx).as_deref(),
2590            Some(diff_base.as_str())
2591        );
2592        git::diff::assert_hunks(
2593            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
2594            buffer,
2595            &diff_base,
2596            &[(1..2, "", "two\n")],
2597        );
2598    });
2599
2600    // Create remote buffer
2601    let buffer_remote_a = project_remote
2602        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
2603        .await
2604        .unwrap();
2605    let change_set_remote_a = project_remote
2606        .update(cx_b, |p, cx| {
2607            p.open_unstaged_changes(buffer_remote_a.clone(), cx)
2608        })
2609        .await
2610        .unwrap();
2611
2612    // Wait remote buffer to catch up to the new diff
2613    executor.run_until_parked();
2614    change_set_remote_a.read_with(cx_b, |change_set, cx| {
2615        let buffer = buffer_remote_a.read(cx);
2616        assert_eq!(
2617            change_set.base_text_string(cx).as_deref(),
2618            Some(diff_base.as_str())
2619        );
2620        git::diff::assert_hunks(
2621            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
2622            buffer,
2623            &diff_base,
2624            &[(1..2, "", "two\n")],
2625        );
2626    });
2627
2628    // Update the staged text of the open buffer
2629    client_a.fs().set_index_for_repo(
2630        Path::new("/dir/.git"),
2631        &[(Path::new("a.txt"), new_diff_base.clone())],
2632    );
2633
2634    // Wait for buffer_local_a to receive it
2635    executor.run_until_parked();
2636    change_set_local_a.read_with(cx_a, |change_set, cx| {
2637        let buffer = buffer_local_a.read(cx);
2638        assert_eq!(
2639            change_set.base_text_string(cx).as_deref(),
2640            Some(new_diff_base.as_str())
2641        );
2642        git::diff::assert_hunks(
2643            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
2644            buffer,
2645            &new_diff_base,
2646            &[(2..3, "", "three\n")],
2647        );
2648    });
2649
2650    change_set_remote_a.read_with(cx_b, |change_set, cx| {
2651        let buffer = buffer_remote_a.read(cx);
2652        assert_eq!(
2653            change_set.base_text_string(cx).as_deref(),
2654            Some(new_diff_base.as_str())
2655        );
2656        git::diff::assert_hunks(
2657            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
2658            buffer,
2659            &new_diff_base,
2660            &[(2..3, "", "three\n")],
2661        );
2662    });
2663
2664    // Nested git dir
2665    let diff_base = "
2666        one
2667        three
2668    "
2669    .unindent();
2670
2671    let new_diff_base = "
2672        one
2673        two
2674    "
2675    .unindent();
2676
2677    client_a.fs().set_index_for_repo(
2678        Path::new("/dir/sub/.git"),
2679        &[(Path::new("b.txt"), diff_base.clone())],
2680    );
2681
2682    // Create the buffer
2683    let buffer_local_b = project_local
2684        .update(cx_a, |p, cx| p.open_buffer((worktree_id, "sub/b.txt"), cx))
2685        .await
2686        .unwrap();
2687    let change_set_local_b = project_local
2688        .update(cx_a, |p, cx| {
2689            p.open_unstaged_changes(buffer_local_b.clone(), cx)
2690        })
2691        .await
2692        .unwrap();
2693
2694    // Wait for it to catch up to the new diff
2695    executor.run_until_parked();
2696    change_set_local_b.read_with(cx_a, |change_set, cx| {
2697        let buffer = buffer_local_b.read(cx);
2698        assert_eq!(
2699            change_set.base_text_string(cx).as_deref(),
2700            Some(diff_base.as_str())
2701        );
2702        git::diff::assert_hunks(
2703            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
2704            buffer,
2705            &diff_base,
2706            &[(1..2, "", "two\n")],
2707        );
2708    });
2709
2710    // Create remote buffer
2711    let buffer_remote_b = project_remote
2712        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "sub/b.txt"), cx))
2713        .await
2714        .unwrap();
2715    let change_set_remote_b = project_remote
2716        .update(cx_b, |p, cx| {
2717            p.open_unstaged_changes(buffer_remote_b.clone(), cx)
2718        })
2719        .await
2720        .unwrap();
2721
2722    executor.run_until_parked();
2723    change_set_remote_b.read_with(cx_b, |change_set, cx| {
2724        let buffer = buffer_remote_b.read(cx);
2725        assert_eq!(
2726            change_set.base_text_string(cx).as_deref(),
2727            Some(diff_base.as_str())
2728        );
2729        git::diff::assert_hunks(
2730            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
2731            buffer,
2732            &diff_base,
2733            &[(1..2, "", "two\n")],
2734        );
2735    });
2736
2737    // Update the staged text
2738    client_a.fs().set_index_for_repo(
2739        Path::new("/dir/sub/.git"),
2740        &[(Path::new("b.txt"), new_diff_base.clone())],
2741    );
2742
2743    // Wait for buffer_local_b to receive it
2744    executor.run_until_parked();
2745    change_set_local_b.read_with(cx_a, |change_set, cx| {
2746        let buffer = buffer_local_b.read(cx);
2747        assert_eq!(
2748            change_set.base_text_string(cx).as_deref(),
2749            Some(new_diff_base.as_str())
2750        );
2751        git::diff::assert_hunks(
2752            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
2753            buffer,
2754            &new_diff_base,
2755            &[(2..3, "", "three\n")],
2756        );
2757    });
2758
2759    change_set_remote_b.read_with(cx_b, |change_set, cx| {
2760        let buffer = buffer_remote_b.read(cx);
2761        assert_eq!(
2762            change_set.base_text_string(cx).as_deref(),
2763            Some(new_diff_base.as_str())
2764        );
2765        git::diff::assert_hunks(
2766            change_set.diff_to_buffer.hunks_in_row_range(0..4, buffer),
2767            buffer,
2768            &new_diff_base,
2769            &[(2..3, "", "three\n")],
2770        );
2771    });
2772}
2773
2774#[gpui::test]
2775async fn test_git_branch_name(
2776    executor: BackgroundExecutor,
2777    cx_a: &mut TestAppContext,
2778    cx_b: &mut TestAppContext,
2779    cx_c: &mut TestAppContext,
2780) {
2781    let mut server = TestServer::start(executor.clone()).await;
2782    let client_a = server.create_client(cx_a, "user_a").await;
2783    let client_b = server.create_client(cx_b, "user_b").await;
2784    let client_c = server.create_client(cx_c, "user_c").await;
2785    server
2786        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
2787        .await;
2788    let active_call_a = cx_a.read(ActiveCall::global);
2789
2790    client_a
2791        .fs()
2792        .insert_tree(
2793            "/dir",
2794            json!({
2795            ".git": {},
2796            }),
2797        )
2798        .await;
2799
2800    let (project_local, _worktree_id) = client_a.build_local_project("/dir", cx_a).await;
2801    let project_id = active_call_a
2802        .update(cx_a, |call, cx| {
2803            call.share_project(project_local.clone(), cx)
2804        })
2805        .await
2806        .unwrap();
2807
2808    let project_remote = client_b.join_remote_project(project_id, cx_b).await;
2809    client_a
2810        .fs()
2811        .set_branch_name(Path::new("/dir/.git"), Some("branch-1"));
2812
2813    // Wait for it to catch up to the new branch
2814    executor.run_until_parked();
2815
2816    #[track_caller]
2817    fn assert_branch(branch_name: Option<impl Into<String>>, project: &Project, cx: &AppContext) {
2818        let branch_name = branch_name.map(Into::into);
2819        let worktrees = project.visible_worktrees(cx).collect::<Vec<_>>();
2820        assert_eq!(worktrees.len(), 1);
2821        let worktree = worktrees[0].clone();
2822        let root_entry = worktree.read(cx).snapshot().root_git_entry().unwrap();
2823        assert_eq!(root_entry.branch(), branch_name.map(Into::into));
2824    }
2825
2826    // Smoke test branch reading
2827
2828    project_local.read_with(cx_a, |project, cx| {
2829        assert_branch(Some("branch-1"), project, cx)
2830    });
2831
2832    project_remote.read_with(cx_b, |project, cx| {
2833        assert_branch(Some("branch-1"), project, cx)
2834    });
2835
2836    client_a
2837        .fs()
2838        .set_branch_name(Path::new("/dir/.git"), Some("branch-2"));
2839
2840    // Wait for buffer_local_a to receive it
2841    executor.run_until_parked();
2842
2843    // Smoke test branch reading
2844
2845    project_local.read_with(cx_a, |project, cx| {
2846        assert_branch(Some("branch-2"), project, cx)
2847    });
2848
2849    project_remote.read_with(cx_b, |project, cx| {
2850        assert_branch(Some("branch-2"), project, cx)
2851    });
2852
2853    let project_remote_c = client_c.join_remote_project(project_id, cx_c).await;
2854    executor.run_until_parked();
2855
2856    project_remote_c.read_with(cx_c, |project, cx| {
2857        assert_branch(Some("branch-2"), project, cx)
2858    });
2859}
2860
2861#[gpui::test]
2862async fn test_git_status_sync(
2863    executor: BackgroundExecutor,
2864    cx_a: &mut TestAppContext,
2865    cx_b: &mut TestAppContext,
2866    cx_c: &mut TestAppContext,
2867) {
2868    let mut server = TestServer::start(executor.clone()).await;
2869    let client_a = server.create_client(cx_a, "user_a").await;
2870    let client_b = server.create_client(cx_b, "user_b").await;
2871    let client_c = server.create_client(cx_c, "user_c").await;
2872    server
2873        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
2874        .await;
2875    let active_call_a = cx_a.read(ActiveCall::global);
2876
2877    client_a
2878        .fs()
2879        .insert_tree(
2880            "/dir",
2881            json!({
2882            ".git": {},
2883            "a.txt": "a",
2884            "b.txt": "b",
2885            }),
2886        )
2887        .await;
2888
2889    const A_TXT: &str = "a.txt";
2890    const B_TXT: &str = "b.txt";
2891
2892    client_a.fs().set_status_for_repo_via_git_operation(
2893        Path::new("/dir/.git"),
2894        &[
2895            (Path::new(A_TXT), GitFileStatus::Added),
2896            (Path::new(B_TXT), GitFileStatus::Added),
2897        ],
2898    );
2899
2900    let (project_local, _worktree_id) = client_a.build_local_project("/dir", cx_a).await;
2901    let project_id = active_call_a
2902        .update(cx_a, |call, cx| {
2903            call.share_project(project_local.clone(), cx)
2904        })
2905        .await
2906        .unwrap();
2907
2908    let project_remote = client_b.join_remote_project(project_id, cx_b).await;
2909
2910    // Wait for it to catch up to the new status
2911    executor.run_until_parked();
2912
2913    #[track_caller]
2914    fn assert_status(
2915        file: &impl AsRef<Path>,
2916        status: Option<GitFileStatus>,
2917        project: &Project,
2918        cx: &AppContext,
2919    ) {
2920        let file = file.as_ref();
2921        let worktrees = project.visible_worktrees(cx).collect::<Vec<_>>();
2922        assert_eq!(worktrees.len(), 1);
2923        let worktree = worktrees[0].clone();
2924        let snapshot = worktree.read(cx).snapshot();
2925        assert_eq!(snapshot.status_for_file(file), status);
2926    }
2927
2928    // Smoke test status reading
2929
2930    project_local.read_with(cx_a, |project, cx| {
2931        assert_status(&Path::new(A_TXT), Some(GitFileStatus::Added), project, cx);
2932        assert_status(&Path::new(B_TXT), Some(GitFileStatus::Added), project, cx);
2933    });
2934
2935    project_remote.read_with(cx_b, |project, cx| {
2936        assert_status(&Path::new(A_TXT), Some(GitFileStatus::Added), project, cx);
2937        assert_status(&Path::new(B_TXT), Some(GitFileStatus::Added), project, cx);
2938    });
2939
2940    client_a.fs().set_status_for_repo_via_working_copy_change(
2941        Path::new("/dir/.git"),
2942        &[
2943            (Path::new(A_TXT), GitFileStatus::Modified),
2944            (Path::new(B_TXT), GitFileStatus::Modified),
2945        ],
2946    );
2947
2948    // Wait for buffer_local_a to receive it
2949    executor.run_until_parked();
2950
2951    // Smoke test status reading
2952
2953    project_local.read_with(cx_a, |project, cx| {
2954        assert_status(
2955            &Path::new(A_TXT),
2956            Some(GitFileStatus::Modified),
2957            project,
2958            cx,
2959        );
2960        assert_status(
2961            &Path::new(B_TXT),
2962            Some(GitFileStatus::Modified),
2963            project,
2964            cx,
2965        );
2966    });
2967
2968    project_remote.read_with(cx_b, |project, cx| {
2969        assert_status(
2970            &Path::new(A_TXT),
2971            Some(GitFileStatus::Modified),
2972            project,
2973            cx,
2974        );
2975        assert_status(
2976            &Path::new(B_TXT),
2977            Some(GitFileStatus::Modified),
2978            project,
2979            cx,
2980        );
2981    });
2982
2983    // And synchronization while joining
2984    let project_remote_c = client_c.join_remote_project(project_id, cx_c).await;
2985    executor.run_until_parked();
2986
2987    project_remote_c.read_with(cx_c, |project, cx| {
2988        assert_status(
2989            &Path::new(A_TXT),
2990            Some(GitFileStatus::Modified),
2991            project,
2992            cx,
2993        );
2994        assert_status(
2995            &Path::new(B_TXT),
2996            Some(GitFileStatus::Modified),
2997            project,
2998            cx,
2999        );
3000    });
3001}
3002
3003#[gpui::test(iterations = 10)]
3004async fn test_fs_operations(
3005    executor: BackgroundExecutor,
3006    cx_a: &mut TestAppContext,
3007    cx_b: &mut TestAppContext,
3008) {
3009    let mut server = TestServer::start(executor.clone()).await;
3010    let client_a = server.create_client(cx_a, "user_a").await;
3011    let client_b = server.create_client(cx_b, "user_b").await;
3012    server
3013        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
3014        .await;
3015    let active_call_a = cx_a.read(ActiveCall::global);
3016
3017    client_a
3018        .fs()
3019        .insert_tree(
3020            "/dir",
3021            json!({
3022                "a.txt": "a-contents",
3023                "b.txt": "b-contents",
3024            }),
3025        )
3026        .await;
3027    let (project_a, worktree_id) = client_a.build_local_project("/dir", cx_a).await;
3028    let project_id = active_call_a
3029        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
3030        .await
3031        .unwrap();
3032    let project_b = client_b.join_remote_project(project_id, cx_b).await;
3033
3034    let worktree_a = project_a.read_with(cx_a, |project, cx| project.worktrees(cx).next().unwrap());
3035    let worktree_b = project_b.read_with(cx_b, |project, cx| project.worktrees(cx).next().unwrap());
3036
3037    let entry = project_b
3038        .update(cx_b, |project, cx| {
3039            project.create_entry((worktree_id, "c.txt"), false, cx)
3040        })
3041        .await
3042        .unwrap()
3043        .to_included()
3044        .unwrap();
3045
3046    worktree_a.read_with(cx_a, |worktree, _| {
3047        assert_eq!(
3048            worktree
3049                .paths()
3050                .map(|p| p.to_string_lossy())
3051                .collect::<Vec<_>>(),
3052            ["a.txt", "b.txt", "c.txt"]
3053        );
3054    });
3055
3056    worktree_b.read_with(cx_b, |worktree, _| {
3057        assert_eq!(
3058            worktree
3059                .paths()
3060                .map(|p| p.to_string_lossy())
3061                .collect::<Vec<_>>(),
3062            ["a.txt", "b.txt", "c.txt"]
3063        );
3064    });
3065
3066    project_b
3067        .update(cx_b, |project, cx| {
3068            project.rename_entry(entry.id, Path::new("d.txt"), cx)
3069        })
3070        .await
3071        .unwrap()
3072        .to_included()
3073        .unwrap();
3074
3075    worktree_a.read_with(cx_a, |worktree, _| {
3076        assert_eq!(
3077            worktree
3078                .paths()
3079                .map(|p| p.to_string_lossy())
3080                .collect::<Vec<_>>(),
3081            ["a.txt", "b.txt", "d.txt"]
3082        );
3083    });
3084
3085    worktree_b.read_with(cx_b, |worktree, _| {
3086        assert_eq!(
3087            worktree
3088                .paths()
3089                .map(|p| p.to_string_lossy())
3090                .collect::<Vec<_>>(),
3091            ["a.txt", "b.txt", "d.txt"]
3092        );
3093    });
3094
3095    let dir_entry = project_b
3096        .update(cx_b, |project, cx| {
3097            project.create_entry((worktree_id, "DIR"), true, cx)
3098        })
3099        .await
3100        .unwrap()
3101        .to_included()
3102        .unwrap();
3103
3104    worktree_a.read_with(cx_a, |worktree, _| {
3105        assert_eq!(
3106            worktree
3107                .paths()
3108                .map(|p| p.to_string_lossy())
3109                .collect::<Vec<_>>(),
3110            ["DIR", "a.txt", "b.txt", "d.txt"]
3111        );
3112    });
3113
3114    worktree_b.read_with(cx_b, |worktree, _| {
3115        assert_eq!(
3116            worktree
3117                .paths()
3118                .map(|p| p.to_string_lossy())
3119                .collect::<Vec<_>>(),
3120            ["DIR", "a.txt", "b.txt", "d.txt"]
3121        );
3122    });
3123
3124    project_b
3125        .update(cx_b, |project, cx| {
3126            project.create_entry((worktree_id, "DIR/e.txt"), false, cx)
3127        })
3128        .await
3129        .unwrap()
3130        .to_included()
3131        .unwrap();
3132
3133    project_b
3134        .update(cx_b, |project, cx| {
3135            project.create_entry((worktree_id, "DIR/SUBDIR"), true, cx)
3136        })
3137        .await
3138        .unwrap()
3139        .to_included()
3140        .unwrap();
3141
3142    project_b
3143        .update(cx_b, |project, cx| {
3144            project.create_entry((worktree_id, "DIR/SUBDIR/f.txt"), false, cx)
3145        })
3146        .await
3147        .unwrap()
3148        .to_included()
3149        .unwrap();
3150
3151    worktree_a.read_with(cx_a, |worktree, _| {
3152        assert_eq!(
3153            worktree
3154                .paths()
3155                .map(|p| p.to_string_lossy())
3156                .collect::<Vec<_>>(),
3157            [
3158                "DIR",
3159                "DIR/SUBDIR",
3160                "DIR/SUBDIR/f.txt",
3161                "DIR/e.txt",
3162                "a.txt",
3163                "b.txt",
3164                "d.txt"
3165            ]
3166        );
3167    });
3168
3169    worktree_b.read_with(cx_b, |worktree, _| {
3170        assert_eq!(
3171            worktree
3172                .paths()
3173                .map(|p| p.to_string_lossy())
3174                .collect::<Vec<_>>(),
3175            [
3176                "DIR",
3177                "DIR/SUBDIR",
3178                "DIR/SUBDIR/f.txt",
3179                "DIR/e.txt",
3180                "a.txt",
3181                "b.txt",
3182                "d.txt"
3183            ]
3184        );
3185    });
3186
3187    project_b
3188        .update(cx_b, |project, cx| {
3189            project.copy_entry(entry.id, None, Path::new("f.txt"), cx)
3190        })
3191        .await
3192        .unwrap()
3193        .unwrap();
3194
3195    worktree_a.read_with(cx_a, |worktree, _| {
3196        assert_eq!(
3197            worktree
3198                .paths()
3199                .map(|p| p.to_string_lossy())
3200                .collect::<Vec<_>>(),
3201            [
3202                "DIR",
3203                "DIR/SUBDIR",
3204                "DIR/SUBDIR/f.txt",
3205                "DIR/e.txt",
3206                "a.txt",
3207                "b.txt",
3208                "d.txt",
3209                "f.txt"
3210            ]
3211        );
3212    });
3213
3214    worktree_b.read_with(cx_b, |worktree, _| {
3215        assert_eq!(
3216            worktree
3217                .paths()
3218                .map(|p| p.to_string_lossy())
3219                .collect::<Vec<_>>(),
3220            [
3221                "DIR",
3222                "DIR/SUBDIR",
3223                "DIR/SUBDIR/f.txt",
3224                "DIR/e.txt",
3225                "a.txt",
3226                "b.txt",
3227                "d.txt",
3228                "f.txt"
3229            ]
3230        );
3231    });
3232
3233    project_b
3234        .update(cx_b, |project, cx| {
3235            project.delete_entry(dir_entry.id, false, cx).unwrap()
3236        })
3237        .await
3238        .unwrap();
3239    executor.run_until_parked();
3240
3241    worktree_a.read_with(cx_a, |worktree, _| {
3242        assert_eq!(
3243            worktree
3244                .paths()
3245                .map(|p| p.to_string_lossy())
3246                .collect::<Vec<_>>(),
3247            ["a.txt", "b.txt", "d.txt", "f.txt"]
3248        );
3249    });
3250
3251    worktree_b.read_with(cx_b, |worktree, _| {
3252        assert_eq!(
3253            worktree
3254                .paths()
3255                .map(|p| p.to_string_lossy())
3256                .collect::<Vec<_>>(),
3257            ["a.txt", "b.txt", "d.txt", "f.txt"]
3258        );
3259    });
3260
3261    project_b
3262        .update(cx_b, |project, cx| {
3263            project.delete_entry(entry.id, false, cx).unwrap()
3264        })
3265        .await
3266        .unwrap();
3267
3268    worktree_a.read_with(cx_a, |worktree, _| {
3269        assert_eq!(
3270            worktree
3271                .paths()
3272                .map(|p| p.to_string_lossy())
3273                .collect::<Vec<_>>(),
3274            ["a.txt", "b.txt", "f.txt"]
3275        );
3276    });
3277
3278    worktree_b.read_with(cx_b, |worktree, _| {
3279        assert_eq!(
3280            worktree
3281                .paths()
3282                .map(|p| p.to_string_lossy())
3283                .collect::<Vec<_>>(),
3284            ["a.txt", "b.txt", "f.txt"]
3285        );
3286    });
3287}
3288
3289#[gpui::test(iterations = 10)]
3290async fn test_local_settings(
3291    executor: BackgroundExecutor,
3292    cx_a: &mut TestAppContext,
3293    cx_b: &mut TestAppContext,
3294) {
3295    let mut server = TestServer::start(executor.clone()).await;
3296    let client_a = server.create_client(cx_a, "user_a").await;
3297    let client_b = server.create_client(cx_b, "user_b").await;
3298    server
3299        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
3300        .await;
3301    let active_call_a = cx_a.read(ActiveCall::global);
3302
3303    // As client A, open a project that contains some local settings files
3304    client_a
3305        .fs()
3306        .insert_tree(
3307            "/dir",
3308            json!({
3309                ".zed": {
3310                    "settings.json": r#"{ "tab_size": 2 }"#
3311                },
3312                "a": {
3313                    ".zed": {
3314                        "settings.json": r#"{ "tab_size": 8 }"#
3315                    },
3316                    "a.txt": "a-contents",
3317                },
3318                "b": {
3319                    "b.txt": "b-contents",
3320                }
3321            }),
3322        )
3323        .await;
3324    let (project_a, _) = client_a.build_local_project("/dir", cx_a).await;
3325    executor.run_until_parked();
3326    let project_id = active_call_a
3327        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
3328        .await
3329        .unwrap();
3330    executor.run_until_parked();
3331
3332    // As client B, join that project and observe the local settings.
3333    let project_b = client_b.join_remote_project(project_id, cx_b).await;
3334
3335    let worktree_b = project_b.read_with(cx_b, |project, cx| project.worktrees(cx).next().unwrap());
3336    executor.run_until_parked();
3337    cx_b.read(|cx| {
3338        let store = cx.global::<SettingsStore>();
3339        assert_eq!(
3340            store
3341                .local_settings(worktree_b.read(cx).id())
3342                .collect::<Vec<_>>(),
3343            &[
3344                (Path::new("").into(), r#"{"tab_size":2}"#.to_string()),
3345                (Path::new("a").into(), r#"{"tab_size":8}"#.to_string()),
3346            ]
3347        )
3348    });
3349
3350    // As client A, update a settings file. As Client B, see the changed settings.
3351    client_a
3352        .fs()
3353        .insert_file("/dir/.zed/settings.json", r#"{}"#.into())
3354        .await;
3355    executor.run_until_parked();
3356    cx_b.read(|cx| {
3357        let store = cx.global::<SettingsStore>();
3358        assert_eq!(
3359            store
3360                .local_settings(worktree_b.read(cx).id())
3361                .collect::<Vec<_>>(),
3362            &[
3363                (Path::new("").into(), r#"{}"#.to_string()),
3364                (Path::new("a").into(), r#"{"tab_size":8}"#.to_string()),
3365            ]
3366        )
3367    });
3368
3369    // As client A, create and remove some settings files. As client B, see the changed settings.
3370    client_a
3371        .fs()
3372        .remove_file("/dir/.zed/settings.json".as_ref(), Default::default())
3373        .await
3374        .unwrap();
3375    client_a
3376        .fs()
3377        .create_dir("/dir/b/.zed".as_ref())
3378        .await
3379        .unwrap();
3380    client_a
3381        .fs()
3382        .insert_file("/dir/b/.zed/settings.json", r#"{"tab_size": 4}"#.into())
3383        .await;
3384    executor.run_until_parked();
3385    cx_b.read(|cx| {
3386        let store = cx.global::<SettingsStore>();
3387        assert_eq!(
3388            store
3389                .local_settings(worktree_b.read(cx).id())
3390                .collect::<Vec<_>>(),
3391            &[
3392                (Path::new("a").into(), r#"{"tab_size":8}"#.to_string()),
3393                (Path::new("b").into(), r#"{"tab_size":4}"#.to_string()),
3394            ]
3395        )
3396    });
3397
3398    // As client B, disconnect.
3399    server.forbid_connections();
3400    server.disconnect_client(client_b.peer_id().unwrap());
3401
3402    // As client A, change and remove settings files while client B is disconnected.
3403    client_a
3404        .fs()
3405        .insert_file("/dir/a/.zed/settings.json", r#"{"hard_tabs":true}"#.into())
3406        .await;
3407    client_a
3408        .fs()
3409        .remove_file("/dir/b/.zed/settings.json".as_ref(), Default::default())
3410        .await
3411        .unwrap();
3412    executor.run_until_parked();
3413
3414    // As client B, reconnect and see the changed settings.
3415    server.allow_connections();
3416    executor.advance_clock(RECEIVE_TIMEOUT);
3417    cx_b.read(|cx| {
3418        let store = cx.global::<SettingsStore>();
3419        assert_eq!(
3420            store
3421                .local_settings(worktree_b.read(cx).id())
3422                .collect::<Vec<_>>(),
3423            &[(Path::new("a").into(), r#"{"hard_tabs":true}"#.to_string()),]
3424        )
3425    });
3426}
3427
3428#[gpui::test(iterations = 10)]
3429async fn test_buffer_conflict_after_save(
3430    executor: BackgroundExecutor,
3431    cx_a: &mut TestAppContext,
3432    cx_b: &mut TestAppContext,
3433) {
3434    let mut server = TestServer::start(executor.clone()).await;
3435    let client_a = server.create_client(cx_a, "user_a").await;
3436    let client_b = server.create_client(cx_b, "user_b").await;
3437    server
3438        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
3439        .await;
3440    let active_call_a = cx_a.read(ActiveCall::global);
3441
3442    client_a
3443        .fs()
3444        .insert_tree(
3445            "/dir",
3446            json!({
3447                "a.txt": "a-contents",
3448            }),
3449        )
3450        .await;
3451    let (project_a, worktree_id) = client_a.build_local_project("/dir", cx_a).await;
3452    let project_id = active_call_a
3453        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
3454        .await
3455        .unwrap();
3456    let project_b = client_b.join_remote_project(project_id, cx_b).await;
3457
3458    // Open a buffer as client B
3459    let buffer_b = project_b
3460        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
3461        .await
3462        .unwrap();
3463
3464    buffer_b.update(cx_b, |buf, cx| buf.edit([(0..0, "world ")], None, cx));
3465
3466    buffer_b.read_with(cx_b, |buf, _| {
3467        assert!(buf.is_dirty());
3468        assert!(!buf.has_conflict());
3469    });
3470
3471    project_b
3472        .update(cx_b, |project, cx| {
3473            project.save_buffer(buffer_b.clone(), cx)
3474        })
3475        .await
3476        .unwrap();
3477
3478    buffer_b.read_with(cx_b, |buffer_b, _| assert!(!buffer_b.is_dirty()));
3479
3480    buffer_b.read_with(cx_b, |buf, _| {
3481        assert!(!buf.has_conflict());
3482    });
3483
3484    buffer_b.update(cx_b, |buf, cx| buf.edit([(0..0, "hello ")], None, cx));
3485
3486    buffer_b.read_with(cx_b, |buf, _| {
3487        assert!(buf.is_dirty());
3488        assert!(!buf.has_conflict());
3489    });
3490}
3491
3492#[gpui::test(iterations = 10)]
3493async fn test_buffer_reloading(
3494    executor: BackgroundExecutor,
3495    cx_a: &mut TestAppContext,
3496    cx_b: &mut TestAppContext,
3497) {
3498    let mut server = TestServer::start(executor.clone()).await;
3499    let client_a = server.create_client(cx_a, "user_a").await;
3500    let client_b = server.create_client(cx_b, "user_b").await;
3501    server
3502        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
3503        .await;
3504    let active_call_a = cx_a.read(ActiveCall::global);
3505
3506    client_a
3507        .fs()
3508        .insert_tree(
3509            "/dir",
3510            json!({
3511                "a.txt": "a\nb\nc",
3512            }),
3513        )
3514        .await;
3515    let (project_a, worktree_id) = client_a.build_local_project("/dir", cx_a).await;
3516    let project_id = active_call_a
3517        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
3518        .await
3519        .unwrap();
3520    let project_b = client_b.join_remote_project(project_id, cx_b).await;
3521
3522    // Open a buffer as client B
3523    let buffer_b = project_b
3524        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
3525        .await
3526        .unwrap();
3527
3528    buffer_b.read_with(cx_b, |buf, _| {
3529        assert!(!buf.is_dirty());
3530        assert!(!buf.has_conflict());
3531        assert_eq!(buf.line_ending(), LineEnding::Unix);
3532    });
3533
3534    let new_contents = Rope::from("d\ne\nf");
3535    client_a
3536        .fs()
3537        .save("/dir/a.txt".as_ref(), &new_contents, LineEnding::Windows)
3538        .await
3539        .unwrap();
3540
3541    executor.run_until_parked();
3542
3543    buffer_b.read_with(cx_b, |buf, _| {
3544        assert_eq!(buf.text(), new_contents.to_string());
3545        assert!(!buf.is_dirty());
3546        assert!(!buf.has_conflict());
3547        assert_eq!(buf.line_ending(), LineEnding::Windows);
3548    });
3549}
3550
3551#[gpui::test(iterations = 10)]
3552async fn test_editing_while_guest_opens_buffer(
3553    executor: BackgroundExecutor,
3554    cx_a: &mut TestAppContext,
3555    cx_b: &mut TestAppContext,
3556) {
3557    let mut server = TestServer::start(executor.clone()).await;
3558    let client_a = server.create_client(cx_a, "user_a").await;
3559    let client_b = server.create_client(cx_b, "user_b").await;
3560    server
3561        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
3562        .await;
3563    let active_call_a = cx_a.read(ActiveCall::global);
3564
3565    client_a
3566        .fs()
3567        .insert_tree("/dir", json!({ "a.txt": "a-contents" }))
3568        .await;
3569    let (project_a, worktree_id) = client_a.build_local_project("/dir", cx_a).await;
3570    let project_id = active_call_a
3571        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
3572        .await
3573        .unwrap();
3574    let project_b = client_b.join_remote_project(project_id, cx_b).await;
3575
3576    // Open a buffer as client A
3577    let buffer_a = project_a
3578        .update(cx_a, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
3579        .await
3580        .unwrap();
3581
3582    // Start opening the same buffer as client B
3583    let open_buffer = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx));
3584    let buffer_b = cx_b.executor().spawn(open_buffer);
3585
3586    // Edit the buffer as client A while client B is still opening it.
3587    cx_b.executor().simulate_random_delay().await;
3588    buffer_a.update(cx_a, |buf, cx| buf.edit([(0..0, "X")], None, cx));
3589    cx_b.executor().simulate_random_delay().await;
3590    buffer_a.update(cx_a, |buf, cx| buf.edit([(1..1, "Y")], None, cx));
3591
3592    let text = buffer_a.read_with(cx_a, |buf, _| buf.text());
3593    let buffer_b = buffer_b.await.unwrap();
3594    executor.run_until_parked();
3595
3596    buffer_b.read_with(cx_b, |buf, _| assert_eq!(buf.text(), text));
3597}
3598
3599#[gpui::test(iterations = 10)]
3600async fn test_leaving_worktree_while_opening_buffer(
3601    executor: BackgroundExecutor,
3602    cx_a: &mut TestAppContext,
3603    cx_b: &mut TestAppContext,
3604) {
3605    let mut server = TestServer::start(executor.clone()).await;
3606    let client_a = server.create_client(cx_a, "user_a").await;
3607    let client_b = server.create_client(cx_b, "user_b").await;
3608    server
3609        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
3610        .await;
3611    let active_call_a = cx_a.read(ActiveCall::global);
3612
3613    client_a
3614        .fs()
3615        .insert_tree("/dir", json!({ "a.txt": "a-contents" }))
3616        .await;
3617    let (project_a, worktree_id) = client_a.build_local_project("/dir", cx_a).await;
3618    let project_id = active_call_a
3619        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
3620        .await
3621        .unwrap();
3622    let project_b = client_b.join_remote_project(project_id, cx_b).await;
3623
3624    // See that a guest has joined as client A.
3625    executor.run_until_parked();
3626
3627    project_a.read_with(cx_a, |p, _| assert_eq!(p.collaborators().len(), 1));
3628
3629    // Begin opening a buffer as client B, but leave the project before the open completes.
3630    let open_buffer = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx));
3631    let buffer_b = cx_b.executor().spawn(open_buffer);
3632    cx_b.update(|_| drop(project_b));
3633    drop(buffer_b);
3634
3635    // See that the guest has left.
3636    executor.run_until_parked();
3637
3638    project_a.read_with(cx_a, |p, _| assert!(p.collaborators().is_empty()));
3639}
3640
3641#[gpui::test(iterations = 10)]
3642async fn test_canceling_buffer_opening(
3643    executor: BackgroundExecutor,
3644    cx_a: &mut TestAppContext,
3645    cx_b: &mut TestAppContext,
3646) {
3647    let mut server = TestServer::start(executor.clone()).await;
3648    let client_a = server.create_client(cx_a, "user_a").await;
3649    let client_b = server.create_client(cx_b, "user_b").await;
3650    server
3651        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
3652        .await;
3653    let active_call_a = cx_a.read(ActiveCall::global);
3654
3655    client_a
3656        .fs()
3657        .insert_tree(
3658            "/dir",
3659            json!({
3660                "a.txt": "abc",
3661            }),
3662        )
3663        .await;
3664    let (project_a, worktree_id) = client_a.build_local_project("/dir", cx_a).await;
3665    let project_id = active_call_a
3666        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
3667        .await
3668        .unwrap();
3669    let project_b = client_b.join_remote_project(project_id, cx_b).await;
3670
3671    let buffer_a = project_a
3672        .update(cx_a, |p, cx| p.open_buffer((worktree_id, "a.txt"), cx))
3673        .await
3674        .unwrap();
3675
3676    // Open a buffer as client B but cancel after a random amount of time.
3677    let buffer_b = project_b.update(cx_b, |p, cx| {
3678        p.open_buffer_by_id(buffer_a.read_with(cx_a, |a, _| a.remote_id()), cx)
3679    });
3680    executor.simulate_random_delay().await;
3681    drop(buffer_b);
3682
3683    // Try opening the same buffer again as client B, and ensure we can
3684    // still do it despite the cancellation above.
3685    let buffer_b = project_b
3686        .update(cx_b, |p, cx| {
3687            p.open_buffer_by_id(buffer_a.read_with(cx_a, |a, _| a.remote_id()), cx)
3688        })
3689        .await
3690        .unwrap();
3691
3692    buffer_b.read_with(cx_b, |buf, _| assert_eq!(buf.text(), "abc"));
3693}
3694
3695#[gpui::test(iterations = 10)]
3696async fn test_leaving_project(
3697    executor: BackgroundExecutor,
3698    cx_a: &mut TestAppContext,
3699    cx_b: &mut TestAppContext,
3700    cx_c: &mut TestAppContext,
3701) {
3702    let mut server = TestServer::start(executor.clone()).await;
3703    let client_a = server.create_client(cx_a, "user_a").await;
3704    let client_b = server.create_client(cx_b, "user_b").await;
3705    let client_c = server.create_client(cx_c, "user_c").await;
3706    server
3707        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
3708        .await;
3709    let active_call_a = cx_a.read(ActiveCall::global);
3710
3711    client_a
3712        .fs()
3713        .insert_tree(
3714            "/a",
3715            json!({
3716                "a.txt": "a-contents",
3717                "b.txt": "b-contents",
3718            }),
3719        )
3720        .await;
3721    let (project_a, _) = client_a.build_local_project("/a", cx_a).await;
3722    let project_id = active_call_a
3723        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
3724        .await
3725        .unwrap();
3726    let project_b1 = client_b.join_remote_project(project_id, cx_b).await;
3727    let project_c = client_c.join_remote_project(project_id, cx_c).await;
3728
3729    // Client A sees that a guest has joined.
3730    executor.run_until_parked();
3731
3732    project_a.read_with(cx_a, |project, _| {
3733        assert_eq!(project.collaborators().len(), 2);
3734    });
3735
3736    project_b1.read_with(cx_b, |project, _| {
3737        assert_eq!(project.collaborators().len(), 2);
3738    });
3739
3740    project_c.read_with(cx_c, |project, _| {
3741        assert_eq!(project.collaborators().len(), 2);
3742    });
3743
3744    // Client B opens a buffer.
3745    let buffer_b1 = project_b1
3746        .update(cx_b, |project, cx| {
3747            let worktree_id = project.worktrees(cx).next().unwrap().read(cx).id();
3748            project.open_buffer((worktree_id, "a.txt"), cx)
3749        })
3750        .await
3751        .unwrap();
3752
3753    buffer_b1.read_with(cx_b, |buffer, _| assert_eq!(buffer.text(), "a-contents"));
3754
3755    // Drop client B's project and ensure client A and client C observe client B leaving.
3756    cx_b.update(|_| drop(project_b1));
3757    executor.run_until_parked();
3758
3759    project_a.read_with(cx_a, |project, _| {
3760        assert_eq!(project.collaborators().len(), 1);
3761    });
3762
3763    project_c.read_with(cx_c, |project, _| {
3764        assert_eq!(project.collaborators().len(), 1);
3765    });
3766
3767    // Client B re-joins the project and can open buffers as before.
3768    let project_b2 = client_b.join_remote_project(project_id, cx_b).await;
3769    executor.run_until_parked();
3770
3771    project_a.read_with(cx_a, |project, _| {
3772        assert_eq!(project.collaborators().len(), 2);
3773    });
3774
3775    project_b2.read_with(cx_b, |project, _| {
3776        assert_eq!(project.collaborators().len(), 2);
3777    });
3778
3779    project_c.read_with(cx_c, |project, _| {
3780        assert_eq!(project.collaborators().len(), 2);
3781    });
3782
3783    let buffer_b2 = project_b2
3784        .update(cx_b, |project, cx| {
3785            let worktree_id = project.worktrees(cx).next().unwrap().read(cx).id();
3786            project.open_buffer((worktree_id, "a.txt"), cx)
3787        })
3788        .await
3789        .unwrap();
3790
3791    buffer_b2.read_with(cx_b, |buffer, _| assert_eq!(buffer.text(), "a-contents"));
3792
3793    project_a.read_with(cx_a, |project, _| {
3794        assert_eq!(project.collaborators().len(), 2);
3795    });
3796
3797    // Drop client B's connection and ensure client A and client C observe client B leaving.
3798    client_b.disconnect(&cx_b.to_async());
3799    executor.advance_clock(RECONNECT_TIMEOUT);
3800
3801    project_a.read_with(cx_a, |project, _| {
3802        assert_eq!(project.collaborators().len(), 1);
3803    });
3804
3805    project_b2.read_with(cx_b, |project, cx| {
3806        assert!(project.is_disconnected(cx));
3807    });
3808
3809    project_c.read_with(cx_c, |project, _| {
3810        assert_eq!(project.collaborators().len(), 1);
3811    });
3812
3813    // Client B can't join the project, unless they re-join the room.
3814    cx_b.spawn(|cx| {
3815        Project::in_room(
3816            project_id,
3817            client_b.app_state.client.clone(),
3818            client_b.user_store().clone(),
3819            client_b.language_registry().clone(),
3820            FakeFs::new(cx.background_executor().clone()),
3821            cx,
3822        )
3823    })
3824    .await
3825    .unwrap_err();
3826
3827    // Simulate connection loss for client C and ensure client A observes client C leaving the project.
3828    client_c.wait_for_current_user(cx_c).await;
3829    server.forbid_connections();
3830    server.disconnect_client(client_c.peer_id().unwrap());
3831    executor.advance_clock(RECEIVE_TIMEOUT + RECONNECT_TIMEOUT);
3832    executor.run_until_parked();
3833
3834    project_a.read_with(cx_a, |project, _| {
3835        assert_eq!(project.collaborators().len(), 0);
3836    });
3837
3838    project_b2.read_with(cx_b, |project, cx| {
3839        assert!(project.is_disconnected(cx));
3840    });
3841
3842    project_c.read_with(cx_c, |project, cx| {
3843        assert!(project.is_disconnected(cx));
3844    });
3845}
3846
3847#[gpui::test(iterations = 10)]
3848async fn test_collaborating_with_diagnostics(
3849    executor: BackgroundExecutor,
3850    cx_a: &mut TestAppContext,
3851    cx_b: &mut TestAppContext,
3852    cx_c: &mut TestAppContext,
3853) {
3854    let mut server = TestServer::start(executor.clone()).await;
3855    let client_a = server.create_client(cx_a, "user_a").await;
3856    let client_b = server.create_client(cx_b, "user_b").await;
3857    let client_c = server.create_client(cx_c, "user_c").await;
3858    server
3859        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
3860        .await;
3861    let active_call_a = cx_a.read(ActiveCall::global);
3862
3863    client_a.language_registry().add(Arc::new(Language::new(
3864        LanguageConfig {
3865            name: "Rust".into(),
3866            matcher: LanguageMatcher {
3867                path_suffixes: vec!["rs".to_string()],
3868                ..Default::default()
3869            },
3870            ..Default::default()
3871        },
3872        Some(tree_sitter_rust::LANGUAGE.into()),
3873    )));
3874    let mut fake_language_servers = client_a
3875        .language_registry()
3876        .register_fake_lsp("Rust", Default::default());
3877
3878    // Share a project as client A
3879    client_a
3880        .fs()
3881        .insert_tree(
3882            "/a",
3883            json!({
3884                "a.rs": "let one = two",
3885                "other.rs": "",
3886            }),
3887        )
3888        .await;
3889    let (project_a, worktree_id) = client_a.build_local_project("/a", cx_a).await;
3890
3891    // Cause the language server to start.
3892    let _buffer = project_a
3893        .update(cx_a, |project, cx| {
3894            project.open_local_buffer_with_lsp("/a/other.rs", cx)
3895        })
3896        .await
3897        .unwrap();
3898
3899    // Simulate a language server reporting errors for a file.
3900    let mut fake_language_server = fake_language_servers.next().await.unwrap();
3901    fake_language_server
3902        .receive_notification::<lsp::notification::DidOpenTextDocument>()
3903        .await;
3904    fake_language_server.notify::<lsp::notification::PublishDiagnostics>(
3905        lsp::PublishDiagnosticsParams {
3906            uri: lsp::Url::from_file_path("/a/a.rs").unwrap(),
3907            version: None,
3908            diagnostics: vec![lsp::Diagnostic {
3909                severity: Some(lsp::DiagnosticSeverity::WARNING),
3910                range: lsp::Range::new(lsp::Position::new(0, 4), lsp::Position::new(0, 7)),
3911                message: "message 0".to_string(),
3912                ..Default::default()
3913            }],
3914        },
3915    );
3916
3917    // Client A shares the project and, simultaneously, the language server
3918    // publishes a diagnostic. This is done to ensure that the server always
3919    // observes the latest diagnostics for a worktree.
3920    let project_id = active_call_a
3921        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
3922        .await
3923        .unwrap();
3924    fake_language_server.notify::<lsp::notification::PublishDiagnostics>(
3925        lsp::PublishDiagnosticsParams {
3926            uri: lsp::Url::from_file_path("/a/a.rs").unwrap(),
3927            version: None,
3928            diagnostics: vec![lsp::Diagnostic {
3929                severity: Some(lsp::DiagnosticSeverity::ERROR),
3930                range: lsp::Range::new(lsp::Position::new(0, 4), lsp::Position::new(0, 7)),
3931                message: "message 1".to_string(),
3932                ..Default::default()
3933            }],
3934        },
3935    );
3936
3937    // Join the worktree as client B.
3938    let project_b = client_b.join_remote_project(project_id, cx_b).await;
3939
3940    // Wait for server to see the diagnostics update.
3941    executor.run_until_parked();
3942
3943    // Ensure client B observes the new diagnostics.
3944
3945    project_b.read_with(cx_b, |project, cx| {
3946        assert_eq!(
3947            project.diagnostic_summaries(false, cx).collect::<Vec<_>>(),
3948            &[(
3949                ProjectPath {
3950                    worktree_id,
3951                    path: Arc::from(Path::new("a.rs")),
3952                },
3953                LanguageServerId(0),
3954                DiagnosticSummary {
3955                    error_count: 1,
3956                    warning_count: 0,
3957                },
3958            )]
3959        )
3960    });
3961
3962    // Join project as client C and observe the diagnostics.
3963    let project_c = client_c.join_remote_project(project_id, cx_c).await;
3964    executor.run_until_parked();
3965    let project_c_diagnostic_summaries =
3966        Rc::new(RefCell::new(project_c.read_with(cx_c, |project, cx| {
3967            project.diagnostic_summaries(false, cx).collect::<Vec<_>>()
3968        })));
3969    project_c.update(cx_c, |_, cx| {
3970        let summaries = project_c_diagnostic_summaries.clone();
3971        cx.subscribe(&project_c, {
3972            move |p, _, event, cx| {
3973                if let project::Event::DiskBasedDiagnosticsFinished { .. } = event {
3974                    *summaries.borrow_mut() = p.diagnostic_summaries(false, cx).collect();
3975                }
3976            }
3977        })
3978        .detach();
3979    });
3980
3981    executor.run_until_parked();
3982    assert_eq!(
3983        project_c_diagnostic_summaries.borrow().as_slice(),
3984        &[(
3985            ProjectPath {
3986                worktree_id,
3987                path: Arc::from(Path::new("a.rs")),
3988            },
3989            LanguageServerId(0),
3990            DiagnosticSummary {
3991                error_count: 1,
3992                warning_count: 0,
3993            },
3994        )]
3995    );
3996
3997    // Simulate a language server reporting more errors for a file.
3998    fake_language_server.notify::<lsp::notification::PublishDiagnostics>(
3999        lsp::PublishDiagnosticsParams {
4000            uri: lsp::Url::from_file_path("/a/a.rs").unwrap(),
4001            version: None,
4002            diagnostics: vec![
4003                lsp::Diagnostic {
4004                    severity: Some(lsp::DiagnosticSeverity::ERROR),
4005                    range: lsp::Range::new(lsp::Position::new(0, 4), lsp::Position::new(0, 7)),
4006                    message: "message 1".to_string(),
4007                    ..Default::default()
4008                },
4009                lsp::Diagnostic {
4010                    severity: Some(lsp::DiagnosticSeverity::WARNING),
4011                    range: lsp::Range::new(lsp::Position::new(0, 10), lsp::Position::new(0, 13)),
4012                    message: "message 2".to_string(),
4013                    ..Default::default()
4014                },
4015            ],
4016        },
4017    );
4018
4019    // Clients B and C get the updated summaries
4020    executor.run_until_parked();
4021
4022    project_b.read_with(cx_b, |project, cx| {
4023        assert_eq!(
4024            project.diagnostic_summaries(false, cx).collect::<Vec<_>>(),
4025            [(
4026                ProjectPath {
4027                    worktree_id,
4028                    path: Arc::from(Path::new("a.rs")),
4029                },
4030                LanguageServerId(0),
4031                DiagnosticSummary {
4032                    error_count: 1,
4033                    warning_count: 1,
4034                },
4035            )]
4036        );
4037    });
4038
4039    project_c.read_with(cx_c, |project, cx| {
4040        assert_eq!(
4041            project.diagnostic_summaries(false, cx).collect::<Vec<_>>(),
4042            [(
4043                ProjectPath {
4044                    worktree_id,
4045                    path: Arc::from(Path::new("a.rs")),
4046                },
4047                LanguageServerId(0),
4048                DiagnosticSummary {
4049                    error_count: 1,
4050                    warning_count: 1,
4051                },
4052            )]
4053        );
4054    });
4055
4056    // Open the file with the errors on client B. They should be present.
4057    let open_buffer = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.rs"), cx));
4058    let buffer_b = cx_b.executor().spawn(open_buffer).await.unwrap();
4059
4060    buffer_b.read_with(cx_b, |buffer, _| {
4061        assert_eq!(
4062            buffer
4063                .snapshot()
4064                .diagnostics_in_range::<_, Point>(0..buffer.len(), false)
4065                .collect::<Vec<_>>(),
4066            &[
4067                DiagnosticEntry {
4068                    range: Point::new(0, 4)..Point::new(0, 7),
4069                    diagnostic: Diagnostic {
4070                        group_id: 2,
4071                        message: "message 1".to_string(),
4072                        severity: lsp::DiagnosticSeverity::ERROR,
4073                        is_primary: true,
4074                        ..Default::default()
4075                    }
4076                },
4077                DiagnosticEntry {
4078                    range: Point::new(0, 10)..Point::new(0, 13),
4079                    diagnostic: Diagnostic {
4080                        group_id: 3,
4081                        severity: lsp::DiagnosticSeverity::WARNING,
4082                        message: "message 2".to_string(),
4083                        is_primary: true,
4084                        ..Default::default()
4085                    }
4086                }
4087            ]
4088        );
4089    });
4090
4091    // Simulate a language server reporting no errors for a file.
4092    fake_language_server.notify::<lsp::notification::PublishDiagnostics>(
4093        lsp::PublishDiagnosticsParams {
4094            uri: lsp::Url::from_file_path("/a/a.rs").unwrap(),
4095            version: None,
4096            diagnostics: vec![],
4097        },
4098    );
4099    executor.run_until_parked();
4100
4101    project_a.read_with(cx_a, |project, cx| {
4102        assert_eq!(
4103            project.diagnostic_summaries(false, cx).collect::<Vec<_>>(),
4104            []
4105        )
4106    });
4107
4108    project_b.read_with(cx_b, |project, cx| {
4109        assert_eq!(
4110            project.diagnostic_summaries(false, cx).collect::<Vec<_>>(),
4111            []
4112        )
4113    });
4114
4115    project_c.read_with(cx_c, |project, cx| {
4116        assert_eq!(
4117            project.diagnostic_summaries(false, cx).collect::<Vec<_>>(),
4118            []
4119        )
4120    });
4121}
4122
4123#[gpui::test(iterations = 10)]
4124async fn test_collaborating_with_lsp_progress_updates_and_diagnostics_ordering(
4125    executor: BackgroundExecutor,
4126    cx_a: &mut TestAppContext,
4127    cx_b: &mut TestAppContext,
4128) {
4129    let mut server = TestServer::start(executor.clone()).await;
4130    let client_a = server.create_client(cx_a, "user_a").await;
4131    let client_b = server.create_client(cx_b, "user_b").await;
4132    server
4133        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
4134        .await;
4135
4136    client_a.language_registry().add(rust_lang());
4137    let mut fake_language_servers = client_a.language_registry().register_fake_lsp(
4138        "Rust",
4139        FakeLspAdapter {
4140            disk_based_diagnostics_progress_token: Some("the-disk-based-token".into()),
4141            disk_based_diagnostics_sources: vec!["the-disk-based-diagnostics-source".into()],
4142            ..Default::default()
4143        },
4144    );
4145
4146    let file_names = &["one.rs", "two.rs", "three.rs", "four.rs", "five.rs"];
4147    client_a
4148        .fs()
4149        .insert_tree(
4150            "/test",
4151            json!({
4152                "one.rs": "const ONE: usize = 1;",
4153                "two.rs": "const TWO: usize = 2;",
4154                "three.rs": "const THREE: usize = 3;",
4155                "four.rs": "const FOUR: usize = 3;",
4156                "five.rs": "const FIVE: usize = 3;",
4157            }),
4158        )
4159        .await;
4160
4161    let (project_a, worktree_id) = client_a.build_local_project("/test", cx_a).await;
4162
4163    // Share a project as client A
4164    let active_call_a = cx_a.read(ActiveCall::global);
4165    let project_id = active_call_a
4166        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
4167        .await
4168        .unwrap();
4169
4170    // Join the project as client B and open all three files.
4171    let project_b = client_b.join_remote_project(project_id, cx_b).await;
4172    let guest_buffers = futures::future::try_join_all(file_names.iter().map(|file_name| {
4173        project_b.update(cx_b, |p, cx| {
4174            p.open_buffer_with_lsp((worktree_id, file_name), cx)
4175        })
4176    }))
4177    .await
4178    .unwrap();
4179
4180    // Simulate a language server reporting errors for a file.
4181    let fake_language_server = fake_language_servers.next().await.unwrap();
4182    fake_language_server
4183        .request::<lsp::request::WorkDoneProgressCreate>(lsp::WorkDoneProgressCreateParams {
4184            token: lsp::NumberOrString::String("the-disk-based-token".to_string()),
4185        })
4186        .await
4187        .unwrap();
4188    fake_language_server.notify::<lsp::notification::Progress>(lsp::ProgressParams {
4189        token: lsp::NumberOrString::String("the-disk-based-token".to_string()),
4190        value: lsp::ProgressParamsValue::WorkDone(lsp::WorkDoneProgress::Begin(
4191            lsp::WorkDoneProgressBegin {
4192                title: "Progress Began".into(),
4193                ..Default::default()
4194            },
4195        )),
4196    });
4197    for file_name in file_names {
4198        fake_language_server.notify::<lsp::notification::PublishDiagnostics>(
4199            lsp::PublishDiagnosticsParams {
4200                uri: lsp::Url::from_file_path(Path::new("/test").join(file_name)).unwrap(),
4201                version: None,
4202                diagnostics: vec![lsp::Diagnostic {
4203                    severity: Some(lsp::DiagnosticSeverity::WARNING),
4204                    source: Some("the-disk-based-diagnostics-source".into()),
4205                    range: lsp::Range::new(lsp::Position::new(0, 0), lsp::Position::new(0, 0)),
4206                    message: "message one".to_string(),
4207                    ..Default::default()
4208                }],
4209            },
4210        );
4211    }
4212    fake_language_server.notify::<lsp::notification::Progress>(lsp::ProgressParams {
4213        token: lsp::NumberOrString::String("the-disk-based-token".to_string()),
4214        value: lsp::ProgressParamsValue::WorkDone(lsp::WorkDoneProgress::End(
4215            lsp::WorkDoneProgressEnd { message: None },
4216        )),
4217    });
4218
4219    // When the "disk base diagnostics finished" message is received, the buffers'
4220    // diagnostics are expected to be present.
4221    let disk_based_diagnostics_finished = Arc::new(AtomicBool::new(false));
4222    project_b.update(cx_b, {
4223        let project_b = project_b.clone();
4224        let disk_based_diagnostics_finished = disk_based_diagnostics_finished.clone();
4225        move |_, cx| {
4226            cx.subscribe(&project_b, move |_, _, event, cx| {
4227                if let project::Event::DiskBasedDiagnosticsFinished { .. } = event {
4228                    disk_based_diagnostics_finished.store(true, SeqCst);
4229                    for (buffer, _) in &guest_buffers {
4230                        assert_eq!(
4231                            buffer
4232                                .read(cx)
4233                                .snapshot()
4234                                .diagnostics_in_range::<_, usize>(0..5, false)
4235                                .count(),
4236                            1,
4237                            "expected a diagnostic for buffer {:?}",
4238                            buffer.read(cx).file().unwrap().path(),
4239                        );
4240                    }
4241                }
4242            })
4243            .detach();
4244        }
4245    });
4246
4247    executor.run_until_parked();
4248    assert!(disk_based_diagnostics_finished.load(SeqCst));
4249}
4250
4251#[gpui::test(iterations = 10)]
4252async fn test_reloading_buffer_manually(
4253    executor: BackgroundExecutor,
4254    cx_a: &mut TestAppContext,
4255    cx_b: &mut TestAppContext,
4256) {
4257    let mut server = TestServer::start(executor.clone()).await;
4258    let client_a = server.create_client(cx_a, "user_a").await;
4259    let client_b = server.create_client(cx_b, "user_b").await;
4260    server
4261        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
4262        .await;
4263    let active_call_a = cx_a.read(ActiveCall::global);
4264
4265    client_a
4266        .fs()
4267        .insert_tree("/a", json!({ "a.rs": "let one = 1;" }))
4268        .await;
4269    let (project_a, worktree_id) = client_a.build_local_project("/a", cx_a).await;
4270    let buffer_a = project_a
4271        .update(cx_a, |p, cx| p.open_buffer((worktree_id, "a.rs"), cx))
4272        .await
4273        .unwrap();
4274    let project_id = active_call_a
4275        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
4276        .await
4277        .unwrap();
4278
4279    let project_b = client_b.join_remote_project(project_id, cx_b).await;
4280
4281    let open_buffer = project_b.update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.rs"), cx));
4282    let buffer_b = cx_b.executor().spawn(open_buffer).await.unwrap();
4283    buffer_b.update(cx_b, |buffer, cx| {
4284        buffer.edit([(4..7, "six")], None, cx);
4285        buffer.edit([(10..11, "6")], None, cx);
4286        assert_eq!(buffer.text(), "let six = 6;");
4287        assert!(buffer.is_dirty());
4288        assert!(!buffer.has_conflict());
4289    });
4290    executor.run_until_parked();
4291
4292    buffer_a.read_with(cx_a, |buffer, _| assert_eq!(buffer.text(), "let six = 6;"));
4293
4294    client_a
4295        .fs()
4296        .save(
4297            "/a/a.rs".as_ref(),
4298            &Rope::from("let seven = 7;"),
4299            LineEnding::Unix,
4300        )
4301        .await
4302        .unwrap();
4303    executor.run_until_parked();
4304
4305    buffer_a.read_with(cx_a, |buffer, _| assert!(buffer.has_conflict()));
4306
4307    buffer_b.read_with(cx_b, |buffer, _| assert!(buffer.has_conflict()));
4308
4309    project_b
4310        .update(cx_b, |project, cx| {
4311            project.reload_buffers(HashSet::from_iter([buffer_b.clone()]), true, cx)
4312        })
4313        .await
4314        .unwrap();
4315
4316    buffer_a.read_with(cx_a, |buffer, _| {
4317        assert_eq!(buffer.text(), "let seven = 7;");
4318        assert!(!buffer.is_dirty());
4319        assert!(!buffer.has_conflict());
4320    });
4321
4322    buffer_b.read_with(cx_b, |buffer, _| {
4323        assert_eq!(buffer.text(), "let seven = 7;");
4324        assert!(!buffer.is_dirty());
4325        assert!(!buffer.has_conflict());
4326    });
4327
4328    buffer_a.update(cx_a, |buffer, cx| {
4329        // Undoing on the host is a no-op when the reload was initiated by the guest.
4330        buffer.undo(cx);
4331        assert_eq!(buffer.text(), "let seven = 7;");
4332        assert!(!buffer.is_dirty());
4333        assert!(!buffer.has_conflict());
4334    });
4335    buffer_b.update(cx_b, |buffer, cx| {
4336        // Undoing on the guest rolls back the buffer to before it was reloaded but the conflict gets cleared.
4337        buffer.undo(cx);
4338        assert_eq!(buffer.text(), "let six = 6;");
4339        assert!(buffer.is_dirty());
4340        assert!(!buffer.has_conflict());
4341    });
4342}
4343
4344#[gpui::test(iterations = 10)]
4345async fn test_formatting_buffer(
4346    executor: BackgroundExecutor,
4347    cx_a: &mut TestAppContext,
4348    cx_b: &mut TestAppContext,
4349) {
4350    let mut server = TestServer::start(executor.clone()).await;
4351    let client_a = server.create_client(cx_a, "user_a").await;
4352    let client_b = server.create_client(cx_b, "user_b").await;
4353    server
4354        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
4355        .await;
4356    let active_call_a = cx_a.read(ActiveCall::global);
4357
4358    client_a.language_registry().add(rust_lang());
4359    let mut fake_language_servers = client_a
4360        .language_registry()
4361        .register_fake_lsp("Rust", FakeLspAdapter::default());
4362
4363    // Here we insert a fake tree with a directory that exists on disk. This is needed
4364    // because later we'll invoke a command, which requires passing a working directory
4365    // that points to a valid location on disk.
4366    let directory = env::current_dir().unwrap();
4367    client_a
4368        .fs()
4369        .insert_tree(&directory, json!({ "a.rs": "let one = \"two\"" }))
4370        .await;
4371    let (project_a, worktree_id) = client_a.build_local_project(&directory, cx_a).await;
4372    let project_id = active_call_a
4373        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
4374        .await
4375        .unwrap();
4376    let project_b = client_b.join_remote_project(project_id, cx_b).await;
4377    let lsp_store_b = project_b.update(cx_b, |p, _| p.lsp_store());
4378
4379    let buffer_b = project_b
4380        .update(cx_b, |p, cx| p.open_buffer((worktree_id, "a.rs"), cx))
4381        .await
4382        .unwrap();
4383
4384    let _handle = lsp_store_b.update(cx_b, |lsp_store, cx| {
4385        lsp_store.register_buffer_with_language_servers(&buffer_b, cx)
4386    });
4387    let fake_language_server = fake_language_servers.next().await.unwrap();
4388    fake_language_server.handle_request::<lsp::request::Formatting, _, _>(|_, _| async move {
4389        Ok(Some(vec![
4390            lsp::TextEdit {
4391                range: lsp::Range::new(lsp::Position::new(0, 4), lsp::Position::new(0, 4)),
4392                new_text: "h".to_string(),
4393            },
4394            lsp::TextEdit {
4395                range: lsp::Range::new(lsp::Position::new(0, 7), lsp::Position::new(0, 7)),
4396                new_text: "y".to_string(),
4397            },
4398        ]))
4399    });
4400
4401    project_b
4402        .update(cx_b, |project, cx| {
4403            project.format(
4404                HashSet::from_iter([buffer_b.clone()]),
4405                true,
4406                FormatTrigger::Save,
4407                FormatTarget::Buffer,
4408                cx,
4409            )
4410        })
4411        .await
4412        .unwrap();
4413
4414    // The edits from the LSP are applied, and a final newline is added.
4415    assert_eq!(
4416        buffer_b.read_with(cx_b, |buffer, _| buffer.text()),
4417        "let honey = \"two\"\n"
4418    );
4419
4420    // Ensure buffer can be formatted using an external command. Notice how the
4421    // host's configuration is honored as opposed to using the guest's settings.
4422    cx_a.update(|cx| {
4423        SettingsStore::update_global(cx, |store, cx| {
4424            store.update_user_settings::<AllLanguageSettings>(cx, |file| {
4425                file.defaults.formatter = Some(SelectedFormatter::List(FormatterList(
4426                    vec![Formatter::External {
4427                        command: "awk".into(),
4428                        arguments: Some(vec!["{sub(/two/,\"{buffer_path}\")}1".to_string()].into()),
4429                    }]
4430                    .into(),
4431                )));
4432            });
4433        });
4434    });
4435
4436    executor.allow_parking();
4437    project_b
4438        .update(cx_b, |project, cx| {
4439            project.format(
4440                HashSet::from_iter([buffer_b.clone()]),
4441                true,
4442                FormatTrigger::Save,
4443                FormatTarget::Buffer,
4444                cx,
4445            )
4446        })
4447        .await
4448        .unwrap();
4449    assert_eq!(
4450        buffer_b.read_with(cx_b, |buffer, _| buffer.text()),
4451        format!("let honey = \"{}/a.rs\"\n", directory.to_str().unwrap())
4452    );
4453}
4454
4455#[gpui::test(iterations = 10)]
4456async fn test_prettier_formatting_buffer(
4457    executor: BackgroundExecutor,
4458    cx_a: &mut TestAppContext,
4459    cx_b: &mut TestAppContext,
4460) {
4461    let mut server = TestServer::start(executor.clone()).await;
4462    let client_a = server.create_client(cx_a, "user_a").await;
4463    let client_b = server.create_client(cx_b, "user_b").await;
4464    server
4465        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
4466        .await;
4467    let active_call_a = cx_a.read(ActiveCall::global);
4468
4469    let test_plugin = "test_plugin";
4470
4471    client_a.language_registry().add(Arc::new(Language::new(
4472        LanguageConfig {
4473            name: "TypeScript".into(),
4474            matcher: LanguageMatcher {
4475                path_suffixes: vec!["ts".to_string()],
4476                ..Default::default()
4477            },
4478            ..Default::default()
4479        },
4480        Some(tree_sitter_typescript::LANGUAGE_TYPESCRIPT.into()),
4481    )));
4482    let mut fake_language_servers = client_a.language_registry().register_fake_lsp(
4483        "TypeScript",
4484        FakeLspAdapter {
4485            prettier_plugins: vec![test_plugin],
4486            ..Default::default()
4487        },
4488    );
4489
4490    // Here we insert a fake tree with a directory that exists on disk. This is needed
4491    // because later we'll invoke a command, which requires passing a working directory
4492    // that points to a valid location on disk.
4493    let directory = env::current_dir().unwrap();
4494    let buffer_text = "let one = \"two\"";
4495    client_a
4496        .fs()
4497        .insert_tree(&directory, json!({ "a.ts": buffer_text }))
4498        .await;
4499    let (project_a, worktree_id) = client_a.build_local_project(&directory, cx_a).await;
4500    let prettier_format_suffix = project::TEST_PRETTIER_FORMAT_SUFFIX;
4501    let open_buffer = project_a.update(cx_a, |p, cx| p.open_buffer((worktree_id, "a.ts"), cx));
4502    let buffer_a = cx_a.executor().spawn(open_buffer).await.unwrap();
4503
4504    let project_id = active_call_a
4505        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
4506        .await
4507        .unwrap();
4508    let project_b = client_b.join_remote_project(project_id, cx_b).await;
4509    let (buffer_b, _) = project_b
4510        .update(cx_b, |p, cx| {
4511            p.open_buffer_with_lsp((worktree_id, "a.ts"), cx)
4512        })
4513        .await
4514        .unwrap();
4515
4516    cx_a.update(|cx| {
4517        SettingsStore::update_global(cx, |store, cx| {
4518            store.update_user_settings::<AllLanguageSettings>(cx, |file| {
4519                file.defaults.formatter = Some(SelectedFormatter::Auto);
4520                file.defaults.prettier = Some(PrettierSettings {
4521                    allowed: true,
4522                    ..PrettierSettings::default()
4523                });
4524            });
4525        });
4526    });
4527    cx_b.update(|cx| {
4528        SettingsStore::update_global(cx, |store, cx| {
4529            store.update_user_settings::<AllLanguageSettings>(cx, |file| {
4530                file.defaults.formatter = Some(SelectedFormatter::List(FormatterList(
4531                    vec![Formatter::LanguageServer { name: None }].into(),
4532                )));
4533                file.defaults.prettier = Some(PrettierSettings {
4534                    allowed: true,
4535                    ..PrettierSettings::default()
4536                });
4537            });
4538        });
4539    });
4540    let fake_language_server = fake_language_servers.next().await.unwrap();
4541    fake_language_server.handle_request::<lsp::request::Formatting, _, _>(|_, _| async move {
4542        panic!(
4543            "Unexpected: prettier should be preferred since it's enabled and language supports it"
4544        )
4545    });
4546
4547    project_b
4548        .update(cx_b, |project, cx| {
4549            project.format(
4550                HashSet::from_iter([buffer_b.clone()]),
4551                true,
4552                FormatTrigger::Save,
4553                FormatTarget::Buffer,
4554                cx,
4555            )
4556        })
4557        .await
4558        .unwrap();
4559
4560    executor.run_until_parked();
4561    assert_eq!(
4562        buffer_b.read_with(cx_b, |buffer, _| buffer.text()),
4563        buffer_text.to_string() + "\n" + prettier_format_suffix,
4564        "Prettier formatting was not applied to client buffer after client's request"
4565    );
4566
4567    project_a
4568        .update(cx_a, |project, cx| {
4569            project.format(
4570                HashSet::from_iter([buffer_a.clone()]),
4571                true,
4572                FormatTrigger::Manual,
4573                FormatTarget::Buffer,
4574                cx,
4575            )
4576        })
4577        .await
4578        .unwrap();
4579
4580    executor.run_until_parked();
4581    assert_eq!(
4582        buffer_b.read_with(cx_b, |buffer, _| buffer.text()),
4583        buffer_text.to_string() + "\n" + prettier_format_suffix + "\n" + prettier_format_suffix,
4584        "Prettier formatting was not applied to client buffer after host's request"
4585    );
4586}
4587
4588#[gpui::test(iterations = 10)]
4589async fn test_definition(
4590    executor: BackgroundExecutor,
4591    cx_a: &mut TestAppContext,
4592    cx_b: &mut TestAppContext,
4593) {
4594    let mut server = TestServer::start(executor.clone()).await;
4595    let client_a = server.create_client(cx_a, "user_a").await;
4596    let client_b = server.create_client(cx_b, "user_b").await;
4597    server
4598        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
4599        .await;
4600    let active_call_a = cx_a.read(ActiveCall::global);
4601
4602    let mut fake_language_servers = client_a
4603        .language_registry()
4604        .register_fake_lsp("Rust", Default::default());
4605    client_a.language_registry().add(rust_lang());
4606
4607    client_a
4608        .fs()
4609        .insert_tree(
4610            "/root",
4611            json!({
4612                "dir-1": {
4613                    "a.rs": "const ONE: usize = b::TWO + b::THREE;",
4614                },
4615                "dir-2": {
4616                    "b.rs": "const TWO: c::T2 = 2;\nconst THREE: usize = 3;",
4617                    "c.rs": "type T2 = usize;",
4618                }
4619            }),
4620        )
4621        .await;
4622    let (project_a, worktree_id) = client_a.build_local_project("/root/dir-1", cx_a).await;
4623    let project_id = active_call_a
4624        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
4625        .await
4626        .unwrap();
4627    let project_b = client_b.join_remote_project(project_id, cx_b).await;
4628
4629    // Open the file on client B.
4630    let (buffer_b, _handle) = project_b
4631        .update(cx_b, |p, cx| {
4632            p.open_buffer_with_lsp((worktree_id, "a.rs"), cx)
4633        })
4634        .await
4635        .unwrap();
4636
4637    // Request the definition of a symbol as the guest.
4638    let fake_language_server = fake_language_servers.next().await.unwrap();
4639    fake_language_server.handle_request::<lsp::request::GotoDefinition, _, _>(|_, _| async move {
4640        Ok(Some(lsp::GotoDefinitionResponse::Scalar(
4641            lsp::Location::new(
4642                lsp::Url::from_file_path("/root/dir-2/b.rs").unwrap(),
4643                lsp::Range::new(lsp::Position::new(0, 6), lsp::Position::new(0, 9)),
4644            ),
4645        )))
4646    });
4647
4648    let definitions_1 = project_b
4649        .update(cx_b, |p, cx| p.definition(&buffer_b, 23, cx))
4650        .await
4651        .unwrap();
4652    cx_b.read(|cx| {
4653        assert_eq!(definitions_1.len(), 1);
4654        assert_eq!(project_b.read(cx).worktrees(cx).count(), 2);
4655        let target_buffer = definitions_1[0].target.buffer.read(cx);
4656        assert_eq!(
4657            target_buffer.text(),
4658            "const TWO: c::T2 = 2;\nconst THREE: usize = 3;"
4659        );
4660        assert_eq!(
4661            definitions_1[0].target.range.to_point(target_buffer),
4662            Point::new(0, 6)..Point::new(0, 9)
4663        );
4664    });
4665
4666    // Try getting more definitions for the same buffer, ensuring the buffer gets reused from
4667    // the previous call to `definition`.
4668    fake_language_server.handle_request::<lsp::request::GotoDefinition, _, _>(|_, _| async move {
4669        Ok(Some(lsp::GotoDefinitionResponse::Scalar(
4670            lsp::Location::new(
4671                lsp::Url::from_file_path("/root/dir-2/b.rs").unwrap(),
4672                lsp::Range::new(lsp::Position::new(1, 6), lsp::Position::new(1, 11)),
4673            ),
4674        )))
4675    });
4676
4677    let definitions_2 = project_b
4678        .update(cx_b, |p, cx| p.definition(&buffer_b, 33, cx))
4679        .await
4680        .unwrap();
4681    cx_b.read(|cx| {
4682        assert_eq!(definitions_2.len(), 1);
4683        assert_eq!(project_b.read(cx).worktrees(cx).count(), 2);
4684        let target_buffer = definitions_2[0].target.buffer.read(cx);
4685        assert_eq!(
4686            target_buffer.text(),
4687            "const TWO: c::T2 = 2;\nconst THREE: usize = 3;"
4688        );
4689        assert_eq!(
4690            definitions_2[0].target.range.to_point(target_buffer),
4691            Point::new(1, 6)..Point::new(1, 11)
4692        );
4693    });
4694    assert_eq!(
4695        definitions_1[0].target.buffer,
4696        definitions_2[0].target.buffer
4697    );
4698
4699    fake_language_server.handle_request::<lsp::request::GotoTypeDefinition, _, _>(
4700        |req, _| async move {
4701            assert_eq!(
4702                req.text_document_position_params.position,
4703                lsp::Position::new(0, 7)
4704            );
4705            Ok(Some(lsp::GotoDefinitionResponse::Scalar(
4706                lsp::Location::new(
4707                    lsp::Url::from_file_path("/root/dir-2/c.rs").unwrap(),
4708                    lsp::Range::new(lsp::Position::new(0, 5), lsp::Position::new(0, 7)),
4709                ),
4710            )))
4711        },
4712    );
4713
4714    let type_definitions = project_b
4715        .update(cx_b, |p, cx| p.type_definition(&buffer_b, 7, cx))
4716        .await
4717        .unwrap();
4718    cx_b.read(|cx| {
4719        assert_eq!(type_definitions.len(), 1);
4720        let target_buffer = type_definitions[0].target.buffer.read(cx);
4721        assert_eq!(target_buffer.text(), "type T2 = usize;");
4722        assert_eq!(
4723            type_definitions[0].target.range.to_point(target_buffer),
4724            Point::new(0, 5)..Point::new(0, 7)
4725        );
4726    });
4727}
4728
4729#[gpui::test(iterations = 10)]
4730async fn test_references(
4731    executor: BackgroundExecutor,
4732    cx_a: &mut TestAppContext,
4733    cx_b: &mut TestAppContext,
4734) {
4735    let mut server = TestServer::start(executor.clone()).await;
4736    let client_a = server.create_client(cx_a, "user_a").await;
4737    let client_b = server.create_client(cx_b, "user_b").await;
4738    server
4739        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
4740        .await;
4741    let active_call_a = cx_a.read(ActiveCall::global);
4742
4743    client_a.language_registry().add(rust_lang());
4744    let mut fake_language_servers = client_a.language_registry().register_fake_lsp(
4745        "Rust",
4746        FakeLspAdapter {
4747            name: "my-fake-lsp-adapter",
4748            capabilities: lsp::ServerCapabilities {
4749                references_provider: Some(lsp::OneOf::Left(true)),
4750                ..Default::default()
4751            },
4752            ..Default::default()
4753        },
4754    );
4755
4756    client_a
4757        .fs()
4758        .insert_tree(
4759            "/root",
4760            json!({
4761                "dir-1": {
4762                    "one.rs": "const ONE: usize = 1;",
4763                    "two.rs": "const TWO: usize = one::ONE + one::ONE;",
4764                },
4765                "dir-2": {
4766                    "three.rs": "const THREE: usize = two::TWO + one::ONE;",
4767                }
4768            }),
4769        )
4770        .await;
4771    let (project_a, worktree_id) = client_a.build_local_project("/root/dir-1", cx_a).await;
4772    let project_id = active_call_a
4773        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
4774        .await
4775        .unwrap();
4776    let project_b = client_b.join_remote_project(project_id, cx_b).await;
4777
4778    // Open the file on client B.
4779    let (buffer_b, _handle) = project_b
4780        .update(cx_b, |p, cx| {
4781            p.open_buffer_with_lsp((worktree_id, "one.rs"), cx)
4782        })
4783        .await
4784        .unwrap();
4785
4786    // Request references to a symbol as the guest.
4787    let fake_language_server = fake_language_servers.next().await.unwrap();
4788    let (lsp_response_tx, rx) = mpsc::unbounded::<Result<Option<Vec<lsp::Location>>>>();
4789    fake_language_server.handle_request::<lsp::request::References, _, _>({
4790        let rx = Arc::new(Mutex::new(Some(rx)));
4791        move |params, _| {
4792            assert_eq!(
4793                params.text_document_position.text_document.uri.as_str(),
4794                "file:///root/dir-1/one.rs"
4795            );
4796            let rx = rx.clone();
4797            async move {
4798                let mut response_rx = rx.lock().take().unwrap();
4799                let result = response_rx.next().await.unwrap();
4800                *rx.lock() = Some(response_rx);
4801                result
4802            }
4803        }
4804    });
4805
4806    let references = project_b.update(cx_b, |p, cx| p.references(&buffer_b, 7, cx));
4807
4808    // User is informed that a request is pending.
4809    executor.run_until_parked();
4810    project_b.read_with(cx_b, |project, cx| {
4811        let status = project.language_server_statuses(cx).next().unwrap().1;
4812        assert_eq!(status.name, "my-fake-lsp-adapter");
4813        assert_eq!(
4814            status.pending_work.values().next().unwrap().message,
4815            Some("Finding references...".into())
4816        );
4817    });
4818
4819    // Cause the language server to respond.
4820    lsp_response_tx
4821        .unbounded_send(Ok(Some(vec![
4822            lsp::Location {
4823                uri: lsp::Url::from_file_path("/root/dir-1/two.rs").unwrap(),
4824                range: lsp::Range::new(lsp::Position::new(0, 24), lsp::Position::new(0, 27)),
4825            },
4826            lsp::Location {
4827                uri: lsp::Url::from_file_path("/root/dir-1/two.rs").unwrap(),
4828                range: lsp::Range::new(lsp::Position::new(0, 35), lsp::Position::new(0, 38)),
4829            },
4830            lsp::Location {
4831                uri: lsp::Url::from_file_path("/root/dir-2/three.rs").unwrap(),
4832                range: lsp::Range::new(lsp::Position::new(0, 37), lsp::Position::new(0, 40)),
4833            },
4834        ])))
4835        .unwrap();
4836
4837    let references = references.await.unwrap();
4838    executor.run_until_parked();
4839    project_b.read_with(cx_b, |project, cx| {
4840        // User is informed that a request is no longer pending.
4841        let status = project.language_server_statuses(cx).next().unwrap().1;
4842        assert!(status.pending_work.is_empty());
4843
4844        assert_eq!(references.len(), 3);
4845        assert_eq!(project.worktrees(cx).count(), 2);
4846
4847        let two_buffer = references[0].buffer.read(cx);
4848        let three_buffer = references[2].buffer.read(cx);
4849        assert_eq!(
4850            two_buffer.file().unwrap().path().as_ref(),
4851            Path::new("two.rs")
4852        );
4853        assert_eq!(references[1].buffer, references[0].buffer);
4854        assert_eq!(
4855            three_buffer.file().unwrap().full_path(cx),
4856            Path::new("/root/dir-2/three.rs")
4857        );
4858
4859        assert_eq!(references[0].range.to_offset(two_buffer), 24..27);
4860        assert_eq!(references[1].range.to_offset(two_buffer), 35..38);
4861        assert_eq!(references[2].range.to_offset(three_buffer), 37..40);
4862    });
4863
4864    let references = project_b.update(cx_b, |p, cx| p.references(&buffer_b, 7, cx));
4865
4866    // User is informed that a request is pending.
4867    executor.run_until_parked();
4868    project_b.read_with(cx_b, |project, cx| {
4869        let status = project.language_server_statuses(cx).next().unwrap().1;
4870        assert_eq!(status.name, "my-fake-lsp-adapter");
4871        assert_eq!(
4872            status.pending_work.values().next().unwrap().message,
4873            Some("Finding references...".into())
4874        );
4875    });
4876
4877    // Cause the LSP request to fail.
4878    lsp_response_tx
4879        .unbounded_send(Err(anyhow!("can't find references")))
4880        .unwrap();
4881    references.await.unwrap_err();
4882
4883    // User is informed that the request is no longer pending.
4884    executor.run_until_parked();
4885    project_b.read_with(cx_b, |project, cx| {
4886        let status = project.language_server_statuses(cx).next().unwrap().1;
4887        assert!(status.pending_work.is_empty());
4888    });
4889}
4890
4891#[gpui::test(iterations = 10)]
4892async fn test_project_search(
4893    executor: BackgroundExecutor,
4894    cx_a: &mut TestAppContext,
4895    cx_b: &mut TestAppContext,
4896) {
4897    let mut server = TestServer::start(executor.clone()).await;
4898    let client_a = server.create_client(cx_a, "user_a").await;
4899    let client_b = server.create_client(cx_b, "user_b").await;
4900    server
4901        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
4902        .await;
4903    let active_call_a = cx_a.read(ActiveCall::global);
4904
4905    client_a
4906        .fs()
4907        .insert_tree(
4908            "/root",
4909            json!({
4910                "dir-1": {
4911                    "a": "hello world",
4912                    "b": "goodnight moon",
4913                    "c": "a world of goo",
4914                    "d": "world champion of clown world",
4915                },
4916                "dir-2": {
4917                    "e": "disney world is fun",
4918                }
4919            }),
4920        )
4921        .await;
4922    let (project_a, _) = client_a.build_local_project("/root/dir-1", cx_a).await;
4923    let (worktree_2, _) = project_a
4924        .update(cx_a, |p, cx| {
4925            p.find_or_create_worktree("/root/dir-2", true, cx)
4926        })
4927        .await
4928        .unwrap();
4929    worktree_2
4930        .read_with(cx_a, |tree, _| tree.as_local().unwrap().scan_complete())
4931        .await;
4932    let project_id = active_call_a
4933        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
4934        .await
4935        .unwrap();
4936
4937    let project_b = client_b.join_remote_project(project_id, cx_b).await;
4938
4939    // Perform a search as the guest.
4940    let mut results = HashMap::default();
4941    let mut search_rx = project_b.update(cx_b, |project, cx| {
4942        project.search(
4943            SearchQuery::text(
4944                "world",
4945                false,
4946                false,
4947                false,
4948                Default::default(),
4949                Default::default(),
4950                None,
4951            )
4952            .unwrap(),
4953            cx,
4954        )
4955    });
4956    while let Some(result) = search_rx.next().await {
4957        match result {
4958            SearchResult::Buffer { buffer, ranges } => {
4959                results.entry(buffer).or_insert(ranges);
4960            }
4961            SearchResult::LimitReached => {
4962                panic!("Unexpectedly reached search limit in tests. If you do want to assert limit-reached, change this panic call.")
4963            }
4964        };
4965    }
4966
4967    let mut ranges_by_path = results
4968        .into_iter()
4969        .map(|(buffer, ranges)| {
4970            buffer.read_with(cx_b, |buffer, cx| {
4971                let path = buffer.file().unwrap().full_path(cx);
4972                let offset_ranges = ranges
4973                    .into_iter()
4974                    .map(|range| range.to_offset(buffer))
4975                    .collect::<Vec<_>>();
4976                (path, offset_ranges)
4977            })
4978        })
4979        .collect::<Vec<_>>();
4980    ranges_by_path.sort_by_key(|(path, _)| path.clone());
4981
4982    assert_eq!(
4983        ranges_by_path,
4984        &[
4985            (PathBuf::from("dir-1/a"), vec![6..11]),
4986            (PathBuf::from("dir-1/c"), vec![2..7]),
4987            (PathBuf::from("dir-1/d"), vec![0..5, 24..29]),
4988            (PathBuf::from("dir-2/e"), vec![7..12]),
4989        ]
4990    );
4991}
4992
4993#[gpui::test(iterations = 10)]
4994async fn test_document_highlights(
4995    executor: BackgroundExecutor,
4996    cx_a: &mut TestAppContext,
4997    cx_b: &mut TestAppContext,
4998) {
4999    let mut server = TestServer::start(executor.clone()).await;
5000    let client_a = server.create_client(cx_a, "user_a").await;
5001    let client_b = server.create_client(cx_b, "user_b").await;
5002    server
5003        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
5004        .await;
5005    let active_call_a = cx_a.read(ActiveCall::global);
5006
5007    client_a
5008        .fs()
5009        .insert_tree(
5010            "/root-1",
5011            json!({
5012                "main.rs": "fn double(number: i32) -> i32 { number + number }",
5013            }),
5014        )
5015        .await;
5016
5017    let mut fake_language_servers = client_a
5018        .language_registry()
5019        .register_fake_lsp("Rust", Default::default());
5020    client_a.language_registry().add(rust_lang());
5021
5022    let (project_a, worktree_id) = client_a.build_local_project("/root-1", cx_a).await;
5023    let project_id = active_call_a
5024        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
5025        .await
5026        .unwrap();
5027    let project_b = client_b.join_remote_project(project_id, cx_b).await;
5028
5029    // Open the file on client B.
5030    let (buffer_b, _handle) = project_b
5031        .update(cx_b, |p, cx| {
5032            p.open_buffer_with_lsp((worktree_id, "main.rs"), cx)
5033        })
5034        .await
5035        .unwrap();
5036
5037    // Request document highlights as the guest.
5038    let fake_language_server = fake_language_servers.next().await.unwrap();
5039    fake_language_server.handle_request::<lsp::request::DocumentHighlightRequest, _, _>(
5040        |params, _| async move {
5041            assert_eq!(
5042                params
5043                    .text_document_position_params
5044                    .text_document
5045                    .uri
5046                    .as_str(),
5047                "file:///root-1/main.rs"
5048            );
5049            assert_eq!(
5050                params.text_document_position_params.position,
5051                lsp::Position::new(0, 34)
5052            );
5053            Ok(Some(vec![
5054                lsp::DocumentHighlight {
5055                    kind: Some(lsp::DocumentHighlightKind::WRITE),
5056                    range: lsp::Range::new(lsp::Position::new(0, 10), lsp::Position::new(0, 16)),
5057                },
5058                lsp::DocumentHighlight {
5059                    kind: Some(lsp::DocumentHighlightKind::READ),
5060                    range: lsp::Range::new(lsp::Position::new(0, 32), lsp::Position::new(0, 38)),
5061                },
5062                lsp::DocumentHighlight {
5063                    kind: Some(lsp::DocumentHighlightKind::READ),
5064                    range: lsp::Range::new(lsp::Position::new(0, 41), lsp::Position::new(0, 47)),
5065                },
5066            ]))
5067        },
5068    );
5069
5070    let highlights = project_b
5071        .update(cx_b, |p, cx| p.document_highlights(&buffer_b, 34, cx))
5072        .await
5073        .unwrap();
5074
5075    buffer_b.read_with(cx_b, |buffer, _| {
5076        let snapshot = buffer.snapshot();
5077
5078        let highlights = highlights
5079            .into_iter()
5080            .map(|highlight| (highlight.kind, highlight.range.to_offset(&snapshot)))
5081            .collect::<Vec<_>>();
5082        assert_eq!(
5083            highlights,
5084            &[
5085                (lsp::DocumentHighlightKind::WRITE, 10..16),
5086                (lsp::DocumentHighlightKind::READ, 32..38),
5087                (lsp::DocumentHighlightKind::READ, 41..47)
5088            ]
5089        )
5090    });
5091}
5092
5093#[gpui::test(iterations = 10)]
5094async fn test_lsp_hover(
5095    executor: BackgroundExecutor,
5096    cx_a: &mut TestAppContext,
5097    cx_b: &mut TestAppContext,
5098) {
5099    let mut server = TestServer::start(executor.clone()).await;
5100    let client_a = server.create_client(cx_a, "user_a").await;
5101    let client_b = server.create_client(cx_b, "user_b").await;
5102    server
5103        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
5104        .await;
5105    let active_call_a = cx_a.read(ActiveCall::global);
5106
5107    client_a
5108        .fs()
5109        .insert_tree(
5110            "/root-1",
5111            json!({
5112                "main.rs": "use std::collections::HashMap;",
5113            }),
5114        )
5115        .await;
5116
5117    client_a.language_registry().add(rust_lang());
5118    let language_server_names = ["rust-analyzer", "CrabLang-ls"];
5119    let mut language_servers = [
5120        client_a.language_registry().register_fake_lsp(
5121            "Rust",
5122            FakeLspAdapter {
5123                name: "rust-analyzer",
5124                capabilities: lsp::ServerCapabilities {
5125                    hover_provider: Some(lsp::HoverProviderCapability::Simple(true)),
5126                    ..lsp::ServerCapabilities::default()
5127                },
5128                ..FakeLspAdapter::default()
5129            },
5130        ),
5131        client_a.language_registry().register_fake_lsp(
5132            "Rust",
5133            FakeLspAdapter {
5134                name: "CrabLang-ls",
5135                capabilities: lsp::ServerCapabilities {
5136                    hover_provider: Some(lsp::HoverProviderCapability::Simple(true)),
5137                    ..lsp::ServerCapabilities::default()
5138                },
5139                ..FakeLspAdapter::default()
5140            },
5141        ),
5142    ];
5143
5144    let (project_a, worktree_id) = client_a.build_local_project("/root-1", cx_a).await;
5145    let project_id = active_call_a
5146        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
5147        .await
5148        .unwrap();
5149    let project_b = client_b.join_remote_project(project_id, cx_b).await;
5150
5151    // Open the file as the guest
5152    let (buffer_b, _handle) = project_b
5153        .update(cx_b, |p, cx| {
5154            p.open_buffer_with_lsp((worktree_id, "main.rs"), cx)
5155        })
5156        .await
5157        .unwrap();
5158
5159    let mut servers_with_hover_requests = HashMap::default();
5160    for i in 0..language_server_names.len() {
5161        let new_server = language_servers[i].next().await.unwrap_or_else(|| {
5162            panic!(
5163                "Failed to get language server #{i} with name {}",
5164                &language_server_names[i]
5165            )
5166        });
5167        let new_server_name = new_server.server.name();
5168        assert!(
5169            !servers_with_hover_requests.contains_key(&new_server_name),
5170            "Unexpected: initialized server with the same name twice. Name: `{new_server_name}`"
5171        );
5172        match new_server_name.as_ref() {
5173            "CrabLang-ls" => {
5174                servers_with_hover_requests.insert(
5175                    new_server_name.clone(),
5176                    new_server.handle_request::<lsp::request::HoverRequest, _, _>(
5177                        move |params, _| {
5178                            assert_eq!(
5179                                params
5180                                    .text_document_position_params
5181                                    .text_document
5182                                    .uri
5183                                    .as_str(),
5184                                "file:///root-1/main.rs"
5185                            );
5186                            let name = new_server_name.clone();
5187                            async move {
5188                                Ok(Some(lsp::Hover {
5189                                    contents: lsp::HoverContents::Scalar(
5190                                        lsp::MarkedString::String(format!("{name} hover")),
5191                                    ),
5192                                    range: None,
5193                                }))
5194                            }
5195                        },
5196                    ),
5197                );
5198            }
5199            "rust-analyzer" => {
5200                servers_with_hover_requests.insert(
5201                    new_server_name.clone(),
5202                    new_server.handle_request::<lsp::request::HoverRequest, _, _>(
5203                        |params, _| async move {
5204                            assert_eq!(
5205                                params
5206                                    .text_document_position_params
5207                                    .text_document
5208                                    .uri
5209                                    .as_str(),
5210                                "file:///root-1/main.rs"
5211                            );
5212                            assert_eq!(
5213                                params.text_document_position_params.position,
5214                                lsp::Position::new(0, 22)
5215                            );
5216                            Ok(Some(lsp::Hover {
5217                                contents: lsp::HoverContents::Array(vec![
5218                                    lsp::MarkedString::String("Test hover content.".to_string()),
5219                                    lsp::MarkedString::LanguageString(lsp::LanguageString {
5220                                        language: "Rust".to_string(),
5221                                        value: "let foo = 42;".to_string(),
5222                                    }),
5223                                ]),
5224                                range: Some(lsp::Range::new(
5225                                    lsp::Position::new(0, 22),
5226                                    lsp::Position::new(0, 29),
5227                                )),
5228                            }))
5229                        },
5230                    ),
5231                );
5232            }
5233            unexpected => panic!("Unexpected server name: {unexpected}"),
5234        }
5235    }
5236
5237    // Request hover information as the guest.
5238    let mut hovers = project_b
5239        .update(cx_b, |p, cx| p.hover(&buffer_b, 22, cx))
5240        .await;
5241    assert_eq!(
5242        hovers.len(),
5243        2,
5244        "Expected two hovers from both language servers, but got: {hovers:?}"
5245    );
5246
5247    let _: Vec<()> = futures::future::join_all(servers_with_hover_requests.into_values().map(
5248        |mut hover_request| async move {
5249            hover_request
5250                .next()
5251                .await
5252                .expect("All hover requests should have been triggered")
5253        },
5254    ))
5255    .await;
5256
5257    hovers.sort_by_key(|hover| hover.contents.len());
5258    let first_hover = hovers.first().cloned().unwrap();
5259    assert_eq!(
5260        first_hover.contents,
5261        vec![project::HoverBlock {
5262            text: "CrabLang-ls hover".to_string(),
5263            kind: HoverBlockKind::Markdown,
5264        },]
5265    );
5266    let second_hover = hovers.last().cloned().unwrap();
5267    assert_eq!(
5268        second_hover.contents,
5269        vec![
5270            project::HoverBlock {
5271                text: "Test hover content.".to_string(),
5272                kind: HoverBlockKind::Markdown,
5273            },
5274            project::HoverBlock {
5275                text: "let foo = 42;".to_string(),
5276                kind: HoverBlockKind::Code {
5277                    language: "Rust".to_string()
5278                },
5279            }
5280        ]
5281    );
5282    buffer_b.read_with(cx_b, |buffer, _| {
5283        let snapshot = buffer.snapshot();
5284        assert_eq!(second_hover.range.unwrap().to_offset(&snapshot), 22..29);
5285    });
5286}
5287
5288#[gpui::test(iterations = 10)]
5289async fn test_project_symbols(
5290    executor: BackgroundExecutor,
5291    cx_a: &mut TestAppContext,
5292    cx_b: &mut TestAppContext,
5293) {
5294    let mut server = TestServer::start(executor.clone()).await;
5295    let client_a = server.create_client(cx_a, "user_a").await;
5296    let client_b = server.create_client(cx_b, "user_b").await;
5297    server
5298        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
5299        .await;
5300    let active_call_a = cx_a.read(ActiveCall::global);
5301
5302    client_a.language_registry().add(rust_lang());
5303    let mut fake_language_servers = client_a
5304        .language_registry()
5305        .register_fake_lsp("Rust", Default::default());
5306
5307    client_a
5308        .fs()
5309        .insert_tree(
5310            "/code",
5311            json!({
5312                "crate-1": {
5313                    "one.rs": "const ONE: usize = 1;",
5314                },
5315                "crate-2": {
5316                    "two.rs": "const TWO: usize = 2; const THREE: usize = 3;",
5317                },
5318                "private": {
5319                    "passwords.txt": "the-password",
5320                }
5321            }),
5322        )
5323        .await;
5324    let (project_a, worktree_id) = client_a.build_local_project("/code/crate-1", cx_a).await;
5325    let project_id = active_call_a
5326        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
5327        .await
5328        .unwrap();
5329    let project_b = client_b.join_remote_project(project_id, cx_b).await;
5330
5331    // Cause the language server to start.
5332    let _buffer = project_b
5333        .update(cx_b, |p, cx| {
5334            p.open_buffer_with_lsp((worktree_id, "one.rs"), cx)
5335        })
5336        .await
5337        .unwrap();
5338
5339    let fake_language_server = fake_language_servers.next().await.unwrap();
5340    fake_language_server.handle_request::<lsp::WorkspaceSymbolRequest, _, _>(|_, _| async move {
5341        Ok(Some(lsp::WorkspaceSymbolResponse::Flat(vec![
5342            #[allow(deprecated)]
5343            lsp::SymbolInformation {
5344                name: "TWO".into(),
5345                location: lsp::Location {
5346                    uri: lsp::Url::from_file_path("/code/crate-2/two.rs").unwrap(),
5347                    range: lsp::Range::new(lsp::Position::new(0, 6), lsp::Position::new(0, 9)),
5348                },
5349                kind: lsp::SymbolKind::CONSTANT,
5350                tags: None,
5351                container_name: None,
5352                deprecated: None,
5353            },
5354        ])))
5355    });
5356
5357    // Request the definition of a symbol as the guest.
5358    let symbols = project_b
5359        .update(cx_b, |p, cx| p.symbols("two", cx))
5360        .await
5361        .unwrap();
5362    assert_eq!(symbols.len(), 1);
5363    assert_eq!(symbols[0].name, "TWO");
5364
5365    // Open one of the returned symbols.
5366    let buffer_b_2 = project_b
5367        .update(cx_b, |project, cx| {
5368            project.open_buffer_for_symbol(&symbols[0], cx)
5369        })
5370        .await
5371        .unwrap();
5372
5373    buffer_b_2.read_with(cx_b, |buffer, cx| {
5374        assert_eq!(
5375            buffer.file().unwrap().full_path(cx),
5376            Path::new("/code/crate-2/two.rs")
5377        );
5378    });
5379
5380    // Attempt to craft a symbol and violate host's privacy by opening an arbitrary file.
5381    let mut fake_symbol = symbols[0].clone();
5382    fake_symbol.path.path = Path::new("/code/secrets").into();
5383    let error = project_b
5384        .update(cx_b, |project, cx| {
5385            project.open_buffer_for_symbol(&fake_symbol, cx)
5386        })
5387        .await
5388        .unwrap_err();
5389    assert!(error.to_string().contains("invalid symbol signature"));
5390}
5391
5392#[gpui::test(iterations = 10)]
5393async fn test_open_buffer_while_getting_definition_pointing_to_it(
5394    executor: BackgroundExecutor,
5395    cx_a: &mut TestAppContext,
5396    cx_b: &mut TestAppContext,
5397    mut rng: StdRng,
5398) {
5399    let mut server = TestServer::start(executor.clone()).await;
5400    let client_a = server.create_client(cx_a, "user_a").await;
5401    let client_b = server.create_client(cx_b, "user_b").await;
5402    server
5403        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
5404        .await;
5405    let active_call_a = cx_a.read(ActiveCall::global);
5406
5407    client_a.language_registry().add(rust_lang());
5408    let mut fake_language_servers = client_a
5409        .language_registry()
5410        .register_fake_lsp("Rust", Default::default());
5411
5412    client_a
5413        .fs()
5414        .insert_tree(
5415            "/root",
5416            json!({
5417                "a.rs": "const ONE: usize = b::TWO;",
5418                "b.rs": "const TWO: usize = 2",
5419            }),
5420        )
5421        .await;
5422    let (project_a, worktree_id) = client_a.build_local_project("/root", cx_a).await;
5423    let project_id = active_call_a
5424        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
5425        .await
5426        .unwrap();
5427    let project_b = client_b.join_remote_project(project_id, cx_b).await;
5428
5429    let (buffer_b1, _lsp) = project_b
5430        .update(cx_b, |p, cx| {
5431            p.open_buffer_with_lsp((worktree_id, "a.rs"), cx)
5432        })
5433        .await
5434        .unwrap();
5435
5436    let fake_language_server = fake_language_servers.next().await.unwrap();
5437    fake_language_server.handle_request::<lsp::request::GotoDefinition, _, _>(|_, _| async move {
5438        Ok(Some(lsp::GotoDefinitionResponse::Scalar(
5439            lsp::Location::new(
5440                lsp::Url::from_file_path("/root/b.rs").unwrap(),
5441                lsp::Range::new(lsp::Position::new(0, 6), lsp::Position::new(0, 9)),
5442            ),
5443        )))
5444    });
5445
5446    let definitions;
5447    let buffer_b2;
5448    if rng.gen() {
5449        definitions = project_b.update(cx_b, |p, cx| p.definition(&buffer_b1, 23, cx));
5450        (buffer_b2, _) = project_b
5451            .update(cx_b, |p, cx| {
5452                p.open_buffer_with_lsp((worktree_id, "b.rs"), cx)
5453            })
5454            .await
5455            .unwrap();
5456    } else {
5457        (buffer_b2, _) = project_b
5458            .update(cx_b, |p, cx| {
5459                p.open_buffer_with_lsp((worktree_id, "b.rs"), cx)
5460            })
5461            .await
5462            .unwrap();
5463        definitions = project_b.update(cx_b, |p, cx| p.definition(&buffer_b1, 23, cx));
5464    }
5465
5466    let definitions = definitions.await.unwrap();
5467    assert_eq!(definitions.len(), 1);
5468    assert_eq!(definitions[0].target.buffer, buffer_b2);
5469}
5470
5471#[gpui::test(iterations = 10)]
5472async fn test_contacts(
5473    executor: BackgroundExecutor,
5474    cx_a: &mut TestAppContext,
5475    cx_b: &mut TestAppContext,
5476    cx_c: &mut TestAppContext,
5477    cx_d: &mut TestAppContext,
5478) {
5479    let mut server = TestServer::start(executor.clone()).await;
5480    let client_a = server.create_client(cx_a, "user_a").await;
5481    let client_b = server.create_client(cx_b, "user_b").await;
5482    let client_c = server.create_client(cx_c, "user_c").await;
5483    let client_d = server.create_client(cx_d, "user_d").await;
5484    server
5485        .make_contacts(&mut [(&client_a, cx_a), (&client_b, cx_b), (&client_c, cx_c)])
5486        .await;
5487    let active_call_a = cx_a.read(ActiveCall::global);
5488    let active_call_b = cx_b.read(ActiveCall::global);
5489    let active_call_c = cx_c.read(ActiveCall::global);
5490    let _active_call_d = cx_d.read(ActiveCall::global);
5491
5492    executor.run_until_parked();
5493    assert_eq!(
5494        contacts(&client_a, cx_a),
5495        [
5496            ("user_b".to_string(), "online", "free"),
5497            ("user_c".to_string(), "online", "free")
5498        ]
5499    );
5500    assert_eq!(
5501        contacts(&client_b, cx_b),
5502        [
5503            ("user_a".to_string(), "online", "free"),
5504            ("user_c".to_string(), "online", "free")
5505        ]
5506    );
5507    assert_eq!(
5508        contacts(&client_c, cx_c),
5509        [
5510            ("user_a".to_string(), "online", "free"),
5511            ("user_b".to_string(), "online", "free")
5512        ]
5513    );
5514    assert_eq!(contacts(&client_d, cx_d), []);
5515
5516    server.disconnect_client(client_c.peer_id().unwrap());
5517    server.forbid_connections();
5518    executor.advance_clock(RECEIVE_TIMEOUT + RECONNECT_TIMEOUT);
5519    assert_eq!(
5520        contacts(&client_a, cx_a),
5521        [
5522            ("user_b".to_string(), "online", "free"),
5523            ("user_c".to_string(), "offline", "free")
5524        ]
5525    );
5526    assert_eq!(
5527        contacts(&client_b, cx_b),
5528        [
5529            ("user_a".to_string(), "online", "free"),
5530            ("user_c".to_string(), "offline", "free")
5531        ]
5532    );
5533    assert_eq!(contacts(&client_c, cx_c), []);
5534    assert_eq!(contacts(&client_d, cx_d), []);
5535
5536    server.allow_connections();
5537    client_c
5538        .authenticate_and_connect(false, &cx_c.to_async())
5539        .await
5540        .unwrap();
5541
5542    executor.run_until_parked();
5543    assert_eq!(
5544        contacts(&client_a, cx_a),
5545        [
5546            ("user_b".to_string(), "online", "free"),
5547            ("user_c".to_string(), "online", "free")
5548        ]
5549    );
5550    assert_eq!(
5551        contacts(&client_b, cx_b),
5552        [
5553            ("user_a".to_string(), "online", "free"),
5554            ("user_c".to_string(), "online", "free")
5555        ]
5556    );
5557    assert_eq!(
5558        contacts(&client_c, cx_c),
5559        [
5560            ("user_a".to_string(), "online", "free"),
5561            ("user_b".to_string(), "online", "free")
5562        ]
5563    );
5564    assert_eq!(contacts(&client_d, cx_d), []);
5565
5566    active_call_a
5567        .update(cx_a, |call, cx| {
5568            call.invite(client_b.user_id().unwrap(), None, cx)
5569        })
5570        .await
5571        .unwrap();
5572    executor.run_until_parked();
5573    assert_eq!(
5574        contacts(&client_a, cx_a),
5575        [
5576            ("user_b".to_string(), "online", "busy"),
5577            ("user_c".to_string(), "online", "free")
5578        ]
5579    );
5580    assert_eq!(
5581        contacts(&client_b, cx_b),
5582        [
5583            ("user_a".to_string(), "online", "busy"),
5584            ("user_c".to_string(), "online", "free")
5585        ]
5586    );
5587    assert_eq!(
5588        contacts(&client_c, cx_c),
5589        [
5590            ("user_a".to_string(), "online", "busy"),
5591            ("user_b".to_string(), "online", "busy")
5592        ]
5593    );
5594    assert_eq!(contacts(&client_d, cx_d), []);
5595
5596    // Client B and client D become contacts while client B is being called.
5597    server
5598        .make_contacts(&mut [(&client_b, cx_b), (&client_d, cx_d)])
5599        .await;
5600    executor.run_until_parked();
5601    assert_eq!(
5602        contacts(&client_a, cx_a),
5603        [
5604            ("user_b".to_string(), "online", "busy"),
5605            ("user_c".to_string(), "online", "free")
5606        ]
5607    );
5608    assert_eq!(
5609        contacts(&client_b, cx_b),
5610        [
5611            ("user_a".to_string(), "online", "busy"),
5612            ("user_c".to_string(), "online", "free"),
5613            ("user_d".to_string(), "online", "free"),
5614        ]
5615    );
5616    assert_eq!(
5617        contacts(&client_c, cx_c),
5618        [
5619            ("user_a".to_string(), "online", "busy"),
5620            ("user_b".to_string(), "online", "busy")
5621        ]
5622    );
5623    assert_eq!(
5624        contacts(&client_d, cx_d),
5625        [("user_b".to_string(), "online", "busy")]
5626    );
5627
5628    active_call_b.update(cx_b, |call, cx| call.decline_incoming(cx).unwrap());
5629    executor.run_until_parked();
5630    assert_eq!(
5631        contacts(&client_a, cx_a),
5632        [
5633            ("user_b".to_string(), "online", "free"),
5634            ("user_c".to_string(), "online", "free")
5635        ]
5636    );
5637    assert_eq!(
5638        contacts(&client_b, cx_b),
5639        [
5640            ("user_a".to_string(), "online", "free"),
5641            ("user_c".to_string(), "online", "free"),
5642            ("user_d".to_string(), "online", "free")
5643        ]
5644    );
5645    assert_eq!(
5646        contacts(&client_c, cx_c),
5647        [
5648            ("user_a".to_string(), "online", "free"),
5649            ("user_b".to_string(), "online", "free")
5650        ]
5651    );
5652    assert_eq!(
5653        contacts(&client_d, cx_d),
5654        [("user_b".to_string(), "online", "free")]
5655    );
5656
5657    active_call_c
5658        .update(cx_c, |call, cx| {
5659            call.invite(client_a.user_id().unwrap(), None, cx)
5660        })
5661        .await
5662        .unwrap();
5663    executor.run_until_parked();
5664    assert_eq!(
5665        contacts(&client_a, cx_a),
5666        [
5667            ("user_b".to_string(), "online", "free"),
5668            ("user_c".to_string(), "online", "busy")
5669        ]
5670    );
5671    assert_eq!(
5672        contacts(&client_b, cx_b),
5673        [
5674            ("user_a".to_string(), "online", "busy"),
5675            ("user_c".to_string(), "online", "busy"),
5676            ("user_d".to_string(), "online", "free")
5677        ]
5678    );
5679    assert_eq!(
5680        contacts(&client_c, cx_c),
5681        [
5682            ("user_a".to_string(), "online", "busy"),
5683            ("user_b".to_string(), "online", "free")
5684        ]
5685    );
5686    assert_eq!(
5687        contacts(&client_d, cx_d),
5688        [("user_b".to_string(), "online", "free")]
5689    );
5690
5691    active_call_a
5692        .update(cx_a, |call, cx| call.accept_incoming(cx))
5693        .await
5694        .unwrap();
5695    executor.run_until_parked();
5696    assert_eq!(
5697        contacts(&client_a, cx_a),
5698        [
5699            ("user_b".to_string(), "online", "free"),
5700            ("user_c".to_string(), "online", "busy")
5701        ]
5702    );
5703    assert_eq!(
5704        contacts(&client_b, cx_b),
5705        [
5706            ("user_a".to_string(), "online", "busy"),
5707            ("user_c".to_string(), "online", "busy"),
5708            ("user_d".to_string(), "online", "free")
5709        ]
5710    );
5711    assert_eq!(
5712        contacts(&client_c, cx_c),
5713        [
5714            ("user_a".to_string(), "online", "busy"),
5715            ("user_b".to_string(), "online", "free")
5716        ]
5717    );
5718    assert_eq!(
5719        contacts(&client_d, cx_d),
5720        [("user_b".to_string(), "online", "free")]
5721    );
5722
5723    active_call_a
5724        .update(cx_a, |call, cx| {
5725            call.invite(client_b.user_id().unwrap(), None, cx)
5726        })
5727        .await
5728        .unwrap();
5729    executor.run_until_parked();
5730    assert_eq!(
5731        contacts(&client_a, cx_a),
5732        [
5733            ("user_b".to_string(), "online", "busy"),
5734            ("user_c".to_string(), "online", "busy")
5735        ]
5736    );
5737    assert_eq!(
5738        contacts(&client_b, cx_b),
5739        [
5740            ("user_a".to_string(), "online", "busy"),
5741            ("user_c".to_string(), "online", "busy"),
5742            ("user_d".to_string(), "online", "free")
5743        ]
5744    );
5745    assert_eq!(
5746        contacts(&client_c, cx_c),
5747        [
5748            ("user_a".to_string(), "online", "busy"),
5749            ("user_b".to_string(), "online", "busy")
5750        ]
5751    );
5752    assert_eq!(
5753        contacts(&client_d, cx_d),
5754        [("user_b".to_string(), "online", "busy")]
5755    );
5756
5757    active_call_a
5758        .update(cx_a, |call, cx| call.hang_up(cx))
5759        .await
5760        .unwrap();
5761    executor.run_until_parked();
5762    assert_eq!(
5763        contacts(&client_a, cx_a),
5764        [
5765            ("user_b".to_string(), "online", "free"),
5766            ("user_c".to_string(), "online", "free")
5767        ]
5768    );
5769    assert_eq!(
5770        contacts(&client_b, cx_b),
5771        [
5772            ("user_a".to_string(), "online", "free"),
5773            ("user_c".to_string(), "online", "free"),
5774            ("user_d".to_string(), "online", "free")
5775        ]
5776    );
5777    assert_eq!(
5778        contacts(&client_c, cx_c),
5779        [
5780            ("user_a".to_string(), "online", "free"),
5781            ("user_b".to_string(), "online", "free")
5782        ]
5783    );
5784    assert_eq!(
5785        contacts(&client_d, cx_d),
5786        [("user_b".to_string(), "online", "free")]
5787    );
5788
5789    active_call_a
5790        .update(cx_a, |call, cx| {
5791            call.invite(client_b.user_id().unwrap(), None, cx)
5792        })
5793        .await
5794        .unwrap();
5795    executor.run_until_parked();
5796    assert_eq!(
5797        contacts(&client_a, cx_a),
5798        [
5799            ("user_b".to_string(), "online", "busy"),
5800            ("user_c".to_string(), "online", "free")
5801        ]
5802    );
5803    assert_eq!(
5804        contacts(&client_b, cx_b),
5805        [
5806            ("user_a".to_string(), "online", "busy"),
5807            ("user_c".to_string(), "online", "free"),
5808            ("user_d".to_string(), "online", "free")
5809        ]
5810    );
5811    assert_eq!(
5812        contacts(&client_c, cx_c),
5813        [
5814            ("user_a".to_string(), "online", "busy"),
5815            ("user_b".to_string(), "online", "busy")
5816        ]
5817    );
5818    assert_eq!(
5819        contacts(&client_d, cx_d),
5820        [("user_b".to_string(), "online", "busy")]
5821    );
5822
5823    server.forbid_connections();
5824    server.disconnect_client(client_a.peer_id().unwrap());
5825    executor.advance_clock(RECEIVE_TIMEOUT + RECONNECT_TIMEOUT);
5826    assert_eq!(contacts(&client_a, cx_a), []);
5827    assert_eq!(
5828        contacts(&client_b, cx_b),
5829        [
5830            ("user_a".to_string(), "offline", "free"),
5831            ("user_c".to_string(), "online", "free"),
5832            ("user_d".to_string(), "online", "free")
5833        ]
5834    );
5835    assert_eq!(
5836        contacts(&client_c, cx_c),
5837        [
5838            ("user_a".to_string(), "offline", "free"),
5839            ("user_b".to_string(), "online", "free")
5840        ]
5841    );
5842    assert_eq!(
5843        contacts(&client_d, cx_d),
5844        [("user_b".to_string(), "online", "free")]
5845    );
5846
5847    // Test removing a contact
5848    client_b
5849        .user_store()
5850        .update(cx_b, |store, cx| {
5851            store.remove_contact(client_c.user_id().unwrap(), cx)
5852        })
5853        .await
5854        .unwrap();
5855    executor.run_until_parked();
5856    assert_eq!(
5857        contacts(&client_b, cx_b),
5858        [
5859            ("user_a".to_string(), "offline", "free"),
5860            ("user_d".to_string(), "online", "free")
5861        ]
5862    );
5863    assert_eq!(
5864        contacts(&client_c, cx_c),
5865        [("user_a".to_string(), "offline", "free"),]
5866    );
5867
5868    fn contacts(
5869        client: &TestClient,
5870        cx: &TestAppContext,
5871    ) -> Vec<(String, &'static str, &'static str)> {
5872        client.user_store().read_with(cx, |store, _| {
5873            store
5874                .contacts()
5875                .iter()
5876                .map(|contact| {
5877                    (
5878                        contact.user.github_login.clone(),
5879                        if contact.online { "online" } else { "offline" },
5880                        if contact.busy { "busy" } else { "free" },
5881                    )
5882                })
5883                .collect()
5884        })
5885    }
5886}
5887
5888#[gpui::test(iterations = 10)]
5889async fn test_contact_requests(
5890    executor: BackgroundExecutor,
5891    cx_a: &mut TestAppContext,
5892    cx_a2: &mut TestAppContext,
5893    cx_b: &mut TestAppContext,
5894    cx_b2: &mut TestAppContext,
5895    cx_c: &mut TestAppContext,
5896    cx_c2: &mut TestAppContext,
5897) {
5898    // Connect to a server as 3 clients.
5899    let mut server = TestServer::start(executor.clone()).await;
5900    let client_a = server.create_client(cx_a, "user_a").await;
5901    let client_a2 = server.create_client(cx_a2, "user_a").await;
5902    let client_b = server.create_client(cx_b, "user_b").await;
5903    let client_b2 = server.create_client(cx_b2, "user_b").await;
5904    let client_c = server.create_client(cx_c, "user_c").await;
5905    let client_c2 = server.create_client(cx_c2, "user_c").await;
5906
5907    assert_eq!(client_a.user_id().unwrap(), client_a2.user_id().unwrap());
5908    assert_eq!(client_b.user_id().unwrap(), client_b2.user_id().unwrap());
5909    assert_eq!(client_c.user_id().unwrap(), client_c2.user_id().unwrap());
5910
5911    // User A and User C request that user B become their contact.
5912    client_a
5913        .user_store()
5914        .update(cx_a, |store, cx| {
5915            store.request_contact(client_b.user_id().unwrap(), cx)
5916        })
5917        .await
5918        .unwrap();
5919    client_c
5920        .user_store()
5921        .update(cx_c, |store, cx| {
5922            store.request_contact(client_b.user_id().unwrap(), cx)
5923        })
5924        .await
5925        .unwrap();
5926    executor.run_until_parked();
5927
5928    // All users see the pending request appear in all their clients.
5929    assert_eq!(
5930        client_a.summarize_contacts(cx_a).outgoing_requests,
5931        &["user_b"]
5932    );
5933    assert_eq!(
5934        client_a2.summarize_contacts(cx_a2).outgoing_requests,
5935        &["user_b"]
5936    );
5937    assert_eq!(
5938        client_b.summarize_contacts(cx_b).incoming_requests,
5939        &["user_a", "user_c"]
5940    );
5941    assert_eq!(
5942        client_b2.summarize_contacts(cx_b2).incoming_requests,
5943        &["user_a", "user_c"]
5944    );
5945    assert_eq!(
5946        client_c.summarize_contacts(cx_c).outgoing_requests,
5947        &["user_b"]
5948    );
5949    assert_eq!(
5950        client_c2.summarize_contacts(cx_c2).outgoing_requests,
5951        &["user_b"]
5952    );
5953
5954    // Contact requests are present upon connecting (tested here via disconnect/reconnect)
5955    disconnect_and_reconnect(&client_a, cx_a).await;
5956    disconnect_and_reconnect(&client_b, cx_b).await;
5957    disconnect_and_reconnect(&client_c, cx_c).await;
5958    executor.run_until_parked();
5959    assert_eq!(
5960        client_a.summarize_contacts(cx_a).outgoing_requests,
5961        &["user_b"]
5962    );
5963    assert_eq!(
5964        client_b.summarize_contacts(cx_b).incoming_requests,
5965        &["user_a", "user_c"]
5966    );
5967    assert_eq!(
5968        client_c.summarize_contacts(cx_c).outgoing_requests,
5969        &["user_b"]
5970    );
5971
5972    // User B accepts the request from user A.
5973    client_b
5974        .user_store()
5975        .update(cx_b, |store, cx| {
5976            store.respond_to_contact_request(client_a.user_id().unwrap(), true, cx)
5977        })
5978        .await
5979        .unwrap();
5980
5981    executor.run_until_parked();
5982
5983    // User B sees user A as their contact now in all client, and the incoming request from them is removed.
5984    let contacts_b = client_b.summarize_contacts(cx_b);
5985    assert_eq!(contacts_b.current, &["user_a"]);
5986    assert_eq!(contacts_b.incoming_requests, &["user_c"]);
5987    let contacts_b2 = client_b2.summarize_contacts(cx_b2);
5988    assert_eq!(contacts_b2.current, &["user_a"]);
5989    assert_eq!(contacts_b2.incoming_requests, &["user_c"]);
5990
5991    // User A sees user B as their contact now in all clients, and the outgoing request to them is removed.
5992    let contacts_a = client_a.summarize_contacts(cx_a);
5993    assert_eq!(contacts_a.current, &["user_b"]);
5994    assert!(contacts_a.outgoing_requests.is_empty());
5995    let contacts_a2 = client_a2.summarize_contacts(cx_a2);
5996    assert_eq!(contacts_a2.current, &["user_b"]);
5997    assert!(contacts_a2.outgoing_requests.is_empty());
5998
5999    // Contacts are present upon connecting (tested here via disconnect/reconnect)
6000    disconnect_and_reconnect(&client_a, cx_a).await;
6001    disconnect_and_reconnect(&client_b, cx_b).await;
6002    disconnect_and_reconnect(&client_c, cx_c).await;
6003    executor.run_until_parked();
6004    assert_eq!(client_a.summarize_contacts(cx_a).current, &["user_b"]);
6005    assert_eq!(client_b.summarize_contacts(cx_b).current, &["user_a"]);
6006    assert_eq!(
6007        client_b.summarize_contacts(cx_b).incoming_requests,
6008        &["user_c"]
6009    );
6010    assert!(client_c.summarize_contacts(cx_c).current.is_empty());
6011    assert_eq!(
6012        client_c.summarize_contacts(cx_c).outgoing_requests,
6013        &["user_b"]
6014    );
6015
6016    // User B rejects the request from user C.
6017    client_b
6018        .user_store()
6019        .update(cx_b, |store, cx| {
6020            store.respond_to_contact_request(client_c.user_id().unwrap(), false, cx)
6021        })
6022        .await
6023        .unwrap();
6024
6025    executor.run_until_parked();
6026
6027    // User B doesn't see user C as their contact, and the incoming request from them is removed.
6028    let contacts_b = client_b.summarize_contacts(cx_b);
6029    assert_eq!(contacts_b.current, &["user_a"]);
6030    assert!(contacts_b.incoming_requests.is_empty());
6031    let contacts_b2 = client_b2.summarize_contacts(cx_b2);
6032    assert_eq!(contacts_b2.current, &["user_a"]);
6033    assert!(contacts_b2.incoming_requests.is_empty());
6034
6035    // User C doesn't see user B as their contact, and the outgoing request to them is removed.
6036    let contacts_c = client_c.summarize_contacts(cx_c);
6037    assert!(contacts_c.current.is_empty());
6038    assert!(contacts_c.outgoing_requests.is_empty());
6039    let contacts_c2 = client_c2.summarize_contacts(cx_c2);
6040    assert!(contacts_c2.current.is_empty());
6041    assert!(contacts_c2.outgoing_requests.is_empty());
6042
6043    // Incoming/outgoing requests are not present upon connecting (tested here via disconnect/reconnect)
6044    disconnect_and_reconnect(&client_a, cx_a).await;
6045    disconnect_and_reconnect(&client_b, cx_b).await;
6046    disconnect_and_reconnect(&client_c, cx_c).await;
6047    executor.run_until_parked();
6048    assert_eq!(client_a.summarize_contacts(cx_a).current, &["user_b"]);
6049    assert_eq!(client_b.summarize_contacts(cx_b).current, &["user_a"]);
6050    assert!(client_b
6051        .summarize_contacts(cx_b)
6052        .incoming_requests
6053        .is_empty());
6054    assert!(client_c.summarize_contacts(cx_c).current.is_empty());
6055    assert!(client_c
6056        .summarize_contacts(cx_c)
6057        .outgoing_requests
6058        .is_empty());
6059
6060    async fn disconnect_and_reconnect(client: &TestClient, cx: &mut TestAppContext) {
6061        client.disconnect(&cx.to_async());
6062        client.clear_contacts(cx).await;
6063        client
6064            .authenticate_and_connect(false, &cx.to_async())
6065            .await
6066            .unwrap();
6067    }
6068}
6069
6070// TODO: Re-enable this test once we can replace our swift Livekit SDK with the rust SDK
6071#[cfg(not(target_os = "macos"))]
6072#[gpui::test(iterations = 10)]
6073async fn test_join_call_after_screen_was_shared(
6074    executor: BackgroundExecutor,
6075    cx_a: &mut TestAppContext,
6076    cx_b: &mut TestAppContext,
6077) {
6078    let mut server = TestServer::start(executor.clone()).await;
6079
6080    let client_a = server.create_client(cx_a, "user_a").await;
6081    let client_b = server.create_client(cx_b, "user_b").await;
6082    server
6083        .make_contacts(&mut [(&client_a, cx_a), (&client_b, cx_b)])
6084        .await;
6085
6086    let active_call_a = cx_a.read(ActiveCall::global);
6087    let active_call_b = cx_b.read(ActiveCall::global);
6088
6089    // Call users B and C from client A.
6090    active_call_a
6091        .update(cx_a, |call, cx| {
6092            call.invite(client_b.user_id().unwrap(), None, cx)
6093        })
6094        .await
6095        .unwrap();
6096
6097    let room_a = active_call_a.read_with(cx_a, |call, _| call.room().unwrap().clone());
6098    executor.run_until_parked();
6099    assert_eq!(
6100        room_participants(&room_a, cx_a),
6101        RoomParticipants {
6102            remote: Default::default(),
6103            pending: vec!["user_b".to_string()]
6104        }
6105    );
6106
6107    // User B receives the call.
6108
6109    let mut incoming_call_b = active_call_b.read_with(cx_b, |call, _| call.incoming());
6110    let call_b = incoming_call_b.next().await.unwrap().unwrap();
6111    assert_eq!(call_b.calling_user.github_login, "user_a");
6112
6113    // User A shares their screen
6114    let display = gpui::TestScreenCaptureSource::new();
6115    cx_a.set_screen_capture_sources(vec![display]);
6116    active_call_a
6117        .update(cx_a, |call, cx| {
6118            call.room()
6119                .unwrap()
6120                .update(cx, |room, cx| room.share_screen(cx))
6121        })
6122        .await
6123        .unwrap();
6124
6125    client_b.user_store().update(cx_b, |user_store, _| {
6126        user_store.clear_cache();
6127    });
6128
6129    // User B joins the room
6130    active_call_b
6131        .update(cx_b, |call, cx| call.accept_incoming(cx))
6132        .await
6133        .unwrap();
6134
6135    let room_b = active_call_b.read_with(cx_b, |call, _| call.room().unwrap().clone());
6136    assert!(incoming_call_b.next().await.unwrap().is_none());
6137
6138    executor.run_until_parked();
6139    assert_eq!(
6140        room_participants(&room_a, cx_a),
6141        RoomParticipants {
6142            remote: vec!["user_b".to_string()],
6143            pending: vec![],
6144        }
6145    );
6146    assert_eq!(
6147        room_participants(&room_b, cx_b),
6148        RoomParticipants {
6149            remote: vec!["user_a".to_string()],
6150            pending: vec![],
6151        }
6152    );
6153
6154    // Ensure User B sees User A's screenshare.
6155
6156    room_b.read_with(cx_b, |room, _| {
6157        assert_eq!(
6158            room.remote_participants()
6159                .get(&client_a.user_id().unwrap())
6160                .unwrap()
6161                .video_tracks
6162                .len(),
6163            1
6164        );
6165    });
6166}
6167
6168#[gpui::test]
6169async fn test_right_click_menu_behind_collab_panel(cx: &mut TestAppContext) {
6170    let mut server = TestServer::start(cx.executor().clone()).await;
6171    let client_a = server.create_client(cx, "user_a").await;
6172    let (_workspace_a, cx) = client_a.build_test_workspace(cx).await;
6173
6174    cx.simulate_resize(size(px(300.), px(300.)));
6175
6176    cx.simulate_keystrokes("cmd-n cmd-n cmd-n");
6177    cx.update(|cx| cx.refresh());
6178
6179    let tab_bounds = cx.debug_bounds("TAB-2").unwrap();
6180    let new_tab_button_bounds = cx.debug_bounds("ICON-Plus").unwrap();
6181
6182    assert!(
6183        tab_bounds.intersects(&new_tab_button_bounds),
6184        "Tab should overlap with the new tab button, if this is failing check if there's been a redesign!"
6185    );
6186
6187    cx.simulate_event(MouseDownEvent {
6188        button: MouseButton::Right,
6189        position: new_tab_button_bounds.center(),
6190        modifiers: Modifiers::default(),
6191        click_count: 1,
6192        first_mouse: false,
6193    });
6194
6195    // regression test that the right click menu for tabs does not open.
6196    assert!(cx.debug_bounds("MENU_ITEM-Close").is_none());
6197
6198    let tab_bounds = cx.debug_bounds("TAB-1").unwrap();
6199    cx.simulate_event(MouseDownEvent {
6200        button: MouseButton::Right,
6201        position: tab_bounds.center(),
6202        modifiers: Modifiers::default(),
6203        click_count: 1,
6204        first_mouse: false,
6205    });
6206    assert!(cx.debug_bounds("MENU_ITEM-Close").is_some());
6207}
6208
6209#[gpui::test]
6210async fn test_pane_split_left(cx: &mut TestAppContext) {
6211    let (_, client) = TestServer::start1(cx).await;
6212    let (workspace, cx) = client.build_test_workspace(cx).await;
6213
6214    cx.simulate_keystrokes("cmd-n");
6215    workspace.update(cx, |workspace, cx| {
6216        assert!(workspace.items(cx).collect::<Vec<_>>().len() == 1);
6217    });
6218    cx.simulate_keystrokes("cmd-k left");
6219    workspace.update(cx, |workspace, cx| {
6220        assert!(workspace.items(cx).collect::<Vec<_>>().len() == 2);
6221    });
6222    cx.simulate_keystrokes("cmd-k");
6223    // sleep for longer than the timeout in keyboard shortcut handling
6224    // to verify that it doesn't fire in this case.
6225    cx.executor().advance_clock(Duration::from_secs(2));
6226    cx.simulate_keystrokes("left");
6227    workspace.update(cx, |workspace, cx| {
6228        assert!(workspace.items(cx).collect::<Vec<_>>().len() == 2);
6229    });
6230}
6231
6232#[gpui::test]
6233async fn test_join_after_restart(cx1: &mut TestAppContext, cx2: &mut TestAppContext) {
6234    let (mut server, client) = TestServer::start1(cx1).await;
6235    let channel1 = server.make_public_channel("channel1", &client, cx1).await;
6236    let channel2 = server.make_public_channel("channel2", &client, cx1).await;
6237
6238    join_channel(channel1, &client, cx1).await.unwrap();
6239    drop(client);
6240
6241    let client2 = server.create_client(cx2, "user_a").await;
6242    join_channel(channel2, &client2, cx2).await.unwrap();
6243}
6244
6245#[gpui::test]
6246async fn test_preview_tabs(cx: &mut TestAppContext) {
6247    let (_server, client) = TestServer::start1(cx).await;
6248    let (workspace, cx) = client.build_test_workspace(cx).await;
6249    let project = workspace.update(cx, |workspace, _| workspace.project().clone());
6250
6251    let worktree_id = project.update(cx, |project, cx| {
6252        project.worktrees(cx).next().unwrap().read(cx).id()
6253    });
6254
6255    let path_1 = ProjectPath {
6256        worktree_id,
6257        path: Path::new("1.txt").into(),
6258    };
6259    let path_2 = ProjectPath {
6260        worktree_id,
6261        path: Path::new("2.js").into(),
6262    };
6263    let path_3 = ProjectPath {
6264        worktree_id,
6265        path: Path::new("3.rs").into(),
6266    };
6267
6268    let pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
6269
6270    let get_path = |pane: &Pane, idx: usize, cx: &AppContext| {
6271        pane.item_for_index(idx).unwrap().project_path(cx).unwrap()
6272    };
6273
6274    // Opening item 3 as a "permanent" tab
6275    workspace
6276        .update(cx, |workspace, cx| {
6277            workspace.open_path(path_3.clone(), None, false, cx)
6278        })
6279        .await
6280        .unwrap();
6281
6282    pane.update(cx, |pane, cx| {
6283        assert_eq!(pane.items_len(), 1);
6284        assert_eq!(get_path(pane, 0, cx), path_3.clone());
6285        assert_eq!(pane.preview_item_id(), None);
6286
6287        assert!(!pane.can_navigate_backward());
6288        assert!(!pane.can_navigate_forward());
6289    });
6290
6291    // Open item 1 as preview
6292    workspace
6293        .update(cx, |workspace, cx| {
6294            workspace.open_path_preview(path_1.clone(), None, true, true, cx)
6295        })
6296        .await
6297        .unwrap();
6298
6299    pane.update(cx, |pane, cx| {
6300        assert_eq!(pane.items_len(), 2);
6301        assert_eq!(get_path(pane, 0, cx), path_3.clone());
6302        assert_eq!(get_path(pane, 1, cx), path_1.clone());
6303        assert_eq!(
6304            pane.preview_item_id(),
6305            Some(pane.items().nth(1).unwrap().item_id())
6306        );
6307
6308        assert!(pane.can_navigate_backward());
6309        assert!(!pane.can_navigate_forward());
6310    });
6311
6312    // Open item 2 as preview
6313    workspace
6314        .update(cx, |workspace, cx| {
6315            workspace.open_path_preview(path_2.clone(), None, true, true, cx)
6316        })
6317        .await
6318        .unwrap();
6319
6320    pane.update(cx, |pane, cx| {
6321        assert_eq!(pane.items_len(), 2);
6322        assert_eq!(get_path(pane, 0, cx), path_3.clone());
6323        assert_eq!(get_path(pane, 1, cx), path_2.clone());
6324        assert_eq!(
6325            pane.preview_item_id(),
6326            Some(pane.items().nth(1).unwrap().item_id())
6327        );
6328
6329        assert!(pane.can_navigate_backward());
6330        assert!(!pane.can_navigate_forward());
6331    });
6332
6333    // Going back should show item 1 as preview
6334    workspace
6335        .update(cx, |workspace, cx| workspace.go_back(pane.downgrade(), cx))
6336        .await
6337        .unwrap();
6338
6339    pane.update(cx, |pane, cx| {
6340        assert_eq!(pane.items_len(), 2);
6341        assert_eq!(get_path(pane, 0, cx), path_3.clone());
6342        assert_eq!(get_path(pane, 1, cx), path_1.clone());
6343        assert_eq!(
6344            pane.preview_item_id(),
6345            Some(pane.items().nth(1).unwrap().item_id())
6346        );
6347
6348        assert!(pane.can_navigate_backward());
6349        assert!(pane.can_navigate_forward());
6350    });
6351
6352    // Closing item 1
6353    pane.update(cx, |pane, cx| {
6354        pane.close_item_by_id(
6355            pane.active_item().unwrap().item_id(),
6356            workspace::SaveIntent::Skip,
6357            cx,
6358        )
6359    })
6360    .await
6361    .unwrap();
6362
6363    pane.update(cx, |pane, cx| {
6364        assert_eq!(pane.items_len(), 1);
6365        assert_eq!(get_path(pane, 0, cx), path_3.clone());
6366        assert_eq!(pane.preview_item_id(), None);
6367
6368        assert!(pane.can_navigate_backward());
6369        assert!(!pane.can_navigate_forward());
6370    });
6371
6372    // Going back should show item 1 as preview
6373    workspace
6374        .update(cx, |workspace, cx| workspace.go_back(pane.downgrade(), cx))
6375        .await
6376        .unwrap();
6377
6378    pane.update(cx, |pane, cx| {
6379        assert_eq!(pane.items_len(), 2);
6380        assert_eq!(get_path(pane, 0, cx), path_3.clone());
6381        assert_eq!(get_path(pane, 1, cx), path_1.clone());
6382        assert_eq!(
6383            pane.preview_item_id(),
6384            Some(pane.items().nth(1).unwrap().item_id())
6385        );
6386
6387        assert!(pane.can_navigate_backward());
6388        assert!(pane.can_navigate_forward());
6389    });
6390
6391    // Close permanent tab
6392    pane.update(cx, |pane, cx| {
6393        let id = pane.items().next().unwrap().item_id();
6394        pane.close_item_by_id(id, workspace::SaveIntent::Skip, cx)
6395    })
6396    .await
6397    .unwrap();
6398
6399    pane.update(cx, |pane, cx| {
6400        assert_eq!(pane.items_len(), 1);
6401        assert_eq!(get_path(pane, 0, cx), path_1.clone());
6402        assert_eq!(
6403            pane.preview_item_id(),
6404            Some(pane.items().next().unwrap().item_id())
6405        );
6406
6407        assert!(pane.can_navigate_backward());
6408        assert!(pane.can_navigate_forward());
6409    });
6410
6411    // Split pane to the right
6412    pane.update(cx, |pane, cx| {
6413        pane.split(workspace::SplitDirection::Right, cx);
6414    });
6415
6416    let right_pane = workspace.update(cx, |workspace, _| workspace.active_pane().clone());
6417
6418    pane.update(cx, |pane, cx| {
6419        assert_eq!(pane.items_len(), 1);
6420        assert_eq!(get_path(pane, 0, cx), path_1.clone());
6421        assert_eq!(
6422            pane.preview_item_id(),
6423            Some(pane.items().next().unwrap().item_id())
6424        );
6425
6426        assert!(pane.can_navigate_backward());
6427        assert!(pane.can_navigate_forward());
6428    });
6429
6430    right_pane.update(cx, |pane, cx| {
6431        assert_eq!(pane.items_len(), 1);
6432        assert_eq!(get_path(pane, 0, cx), path_1.clone());
6433        assert_eq!(pane.preview_item_id(), None);
6434
6435        assert!(!pane.can_navigate_backward());
6436        assert!(!pane.can_navigate_forward());
6437    });
6438
6439    // Open item 2 as preview in right pane
6440    workspace
6441        .update(cx, |workspace, cx| {
6442            workspace.open_path_preview(path_2.clone(), None, true, true, cx)
6443        })
6444        .await
6445        .unwrap();
6446
6447    pane.update(cx, |pane, cx| {
6448        assert_eq!(pane.items_len(), 1);
6449        assert_eq!(get_path(pane, 0, cx), path_1.clone());
6450        assert_eq!(
6451            pane.preview_item_id(),
6452            Some(pane.items().next().unwrap().item_id())
6453        );
6454
6455        assert!(pane.can_navigate_backward());
6456        assert!(pane.can_navigate_forward());
6457    });
6458
6459    right_pane.update(cx, |pane, cx| {
6460        assert_eq!(pane.items_len(), 2);
6461        assert_eq!(get_path(pane, 0, cx), path_1.clone());
6462        assert_eq!(get_path(pane, 1, cx), path_2.clone());
6463        assert_eq!(
6464            pane.preview_item_id(),
6465            Some(pane.items().nth(1).unwrap().item_id())
6466        );
6467
6468        assert!(pane.can_navigate_backward());
6469        assert!(!pane.can_navigate_forward());
6470    });
6471
6472    // Focus left pane
6473    workspace.update(cx, |workspace, cx| {
6474        workspace.activate_pane_in_direction(workspace::SplitDirection::Left, cx)
6475    });
6476
6477    // Open item 2 as preview in left pane
6478    workspace
6479        .update(cx, |workspace, cx| {
6480            workspace.open_path_preview(path_2.clone(), None, true, true, cx)
6481        })
6482        .await
6483        .unwrap();
6484
6485    pane.update(cx, |pane, cx| {
6486        assert_eq!(pane.items_len(), 1);
6487        assert_eq!(get_path(pane, 0, cx), path_2.clone());
6488        assert_eq!(
6489            pane.preview_item_id(),
6490            Some(pane.items().next().unwrap().item_id())
6491        );
6492
6493        assert!(pane.can_navigate_backward());
6494        assert!(!pane.can_navigate_forward());
6495    });
6496
6497    right_pane.update(cx, |pane, cx| {
6498        assert_eq!(pane.items_len(), 2);
6499        assert_eq!(get_path(pane, 0, cx), path_1.clone());
6500        assert_eq!(get_path(pane, 1, cx), path_2.clone());
6501        assert_eq!(
6502            pane.preview_item_id(),
6503            Some(pane.items().nth(1).unwrap().item_id())
6504        );
6505
6506        assert!(pane.can_navigate_backward());
6507        assert!(!pane.can_navigate_forward());
6508    });
6509}
6510
6511#[gpui::test(iterations = 10)]
6512async fn test_context_collaboration_with_reconnect(
6513    executor: BackgroundExecutor,
6514    cx_a: &mut TestAppContext,
6515    cx_b: &mut TestAppContext,
6516) {
6517    let mut server = TestServer::start(executor.clone()).await;
6518    let client_a = server.create_client(cx_a, "user_a").await;
6519    let client_b = server.create_client(cx_b, "user_b").await;
6520    server
6521        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
6522        .await;
6523    let active_call_a = cx_a.read(ActiveCall::global);
6524
6525    client_a.fs().insert_tree("/a", Default::default()).await;
6526    let (project_a, _) = client_a.build_local_project("/a", cx_a).await;
6527    let project_id = active_call_a
6528        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
6529        .await
6530        .unwrap();
6531    let project_b = client_b.join_remote_project(project_id, cx_b).await;
6532
6533    // Client A sees that a guest has joined.
6534    executor.run_until_parked();
6535
6536    project_a.read_with(cx_a, |project, _| {
6537        assert_eq!(project.collaborators().len(), 1);
6538    });
6539    project_b.read_with(cx_b, |project, _| {
6540        assert_eq!(project.collaborators().len(), 1);
6541    });
6542
6543    cx_a.update(context_server::init);
6544    cx_b.update(context_server::init);
6545    let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
6546    let context_store_a = cx_a
6547        .update(|cx| {
6548            ContextStore::new(
6549                project_a.clone(),
6550                prompt_builder.clone(),
6551                Arc::new(SlashCommandWorkingSet::default()),
6552                Arc::new(ToolWorkingSet::default()),
6553                cx,
6554            )
6555        })
6556        .await
6557        .unwrap();
6558    let context_store_b = cx_b
6559        .update(|cx| {
6560            ContextStore::new(
6561                project_b.clone(),
6562                prompt_builder.clone(),
6563                Arc::new(SlashCommandWorkingSet::default()),
6564                Arc::new(ToolWorkingSet::default()),
6565                cx,
6566            )
6567        })
6568        .await
6569        .unwrap();
6570
6571    // Client A creates a new chats.
6572    let context_a = context_store_a.update(cx_a, |store, cx| store.create(cx));
6573    executor.run_until_parked();
6574
6575    // Client B retrieves host's contexts and joins one.
6576    let context_b = context_store_b
6577        .update(cx_b, |store, cx| {
6578            let host_contexts = store.host_contexts().to_vec();
6579            assert_eq!(host_contexts.len(), 1);
6580            store.open_remote_context(host_contexts[0].id.clone(), cx)
6581        })
6582        .await
6583        .unwrap();
6584
6585    // Host and guest make changes
6586    context_a.update(cx_a, |context, cx| {
6587        context.buffer().update(cx, |buffer, cx| {
6588            buffer.edit([(0..0, "Host change\n")], None, cx)
6589        })
6590    });
6591    context_b.update(cx_b, |context, cx| {
6592        context.buffer().update(cx, |buffer, cx| {
6593            buffer.edit([(0..0, "Guest change\n")], None, cx)
6594        })
6595    });
6596    executor.run_until_parked();
6597    assert_eq!(
6598        context_a.read_with(cx_a, |context, cx| context.buffer().read(cx).text()),
6599        "Guest change\nHost change\n"
6600    );
6601    assert_eq!(
6602        context_b.read_with(cx_b, |context, cx| context.buffer().read(cx).text()),
6603        "Guest change\nHost change\n"
6604    );
6605
6606    // Disconnect client A and make some changes while disconnected.
6607    server.disconnect_client(client_a.peer_id().unwrap());
6608    server.forbid_connections();
6609    context_a.update(cx_a, |context, cx| {
6610        context.buffer().update(cx, |buffer, cx| {
6611            buffer.edit([(0..0, "Host offline change\n")], None, cx)
6612        })
6613    });
6614    context_b.update(cx_b, |context, cx| {
6615        context.buffer().update(cx, |buffer, cx| {
6616            buffer.edit([(0..0, "Guest offline change\n")], None, cx)
6617        })
6618    });
6619    executor.run_until_parked();
6620    assert_eq!(
6621        context_a.read_with(cx_a, |context, cx| context.buffer().read(cx).text()),
6622        "Host offline change\nGuest change\nHost change\n"
6623    );
6624    assert_eq!(
6625        context_b.read_with(cx_b, |context, cx| context.buffer().read(cx).text()),
6626        "Guest offline change\nGuest change\nHost change\n"
6627    );
6628
6629    // Allow client A to reconnect and verify that contexts converge.
6630    server.allow_connections();
6631    executor.advance_clock(RECEIVE_TIMEOUT);
6632    assert_eq!(
6633        context_a.read_with(cx_a, |context, cx| context.buffer().read(cx).text()),
6634        "Guest offline change\nHost offline change\nGuest change\nHost change\n"
6635    );
6636    assert_eq!(
6637        context_b.read_with(cx_b, |context, cx| context.buffer().read(cx).text()),
6638        "Guest offline change\nHost offline change\nGuest change\nHost change\n"
6639    );
6640
6641    // Client A disconnects without being able to reconnect. Context B becomes readonly.
6642    server.forbid_connections();
6643    server.disconnect_client(client_a.peer_id().unwrap());
6644    executor.advance_clock(RECEIVE_TIMEOUT + RECONNECT_TIMEOUT);
6645    context_b.read_with(cx_b, |context, cx| {
6646        assert!(context.buffer().read(cx).read_only());
6647    });
6648}
6649
6650#[gpui::test]
6651async fn test_remote_git_branches(
6652    executor: BackgroundExecutor,
6653    cx_a: &mut TestAppContext,
6654    cx_b: &mut TestAppContext,
6655) {
6656    let mut server = TestServer::start(executor.clone()).await;
6657    let client_a = server.create_client(cx_a, "user_a").await;
6658    let client_b = server.create_client(cx_b, "user_b").await;
6659    server
6660        .create_room(&mut [(&client_a, cx_a), (&client_b, cx_b)])
6661        .await;
6662    let active_call_a = cx_a.read(ActiveCall::global);
6663
6664    client_a
6665        .fs()
6666        .insert_tree("/project", serde_json::json!({ ".git":{} }))
6667        .await;
6668    let branches = ["main", "dev", "feature-1"];
6669    client_a
6670        .fs()
6671        .insert_branches(Path::new("/project/.git"), &branches);
6672
6673    let (project_a, worktree_id) = client_a.build_local_project("/project", cx_a).await;
6674    let project_id = active_call_a
6675        .update(cx_a, |call, cx| call.share_project(project_a.clone(), cx))
6676        .await
6677        .unwrap();
6678    let project_b = client_b.join_remote_project(project_id, cx_b).await;
6679
6680    let root_path = ProjectPath::root_path(worktree_id);
6681    // Client A sees that a guest has joined.
6682    executor.run_until_parked();
6683
6684    let branches_b = cx_b
6685        .update(|cx| project_b.update(cx, |project, cx| project.branches(root_path.clone(), cx)))
6686        .await
6687        .unwrap();
6688
6689    let new_branch = branches[2];
6690
6691    let branches_b = branches_b
6692        .into_iter()
6693        .map(|branch| branch.name)
6694        .collect::<Vec<_>>();
6695
6696    assert_eq!(&branches_b, &branches);
6697
6698    cx_b.update(|cx| {
6699        project_b.update(cx, |project, cx| {
6700            project.update_or_create_branch(root_path.clone(), new_branch.to_string(), cx)
6701        })
6702    })
6703    .await
6704    .unwrap();
6705
6706    executor.run_until_parked();
6707
6708    let host_branch = cx_a.update(|cx| {
6709        project_a.update(cx, |project, cx| {
6710            project.worktree_store().update(cx, |worktree_store, cx| {
6711                worktree_store
6712                    .current_branch(root_path.clone(), cx)
6713                    .unwrap()
6714            })
6715        })
6716    });
6717
6718    assert_eq!(host_branch.as_ref(), branches[2]);
6719
6720    // Also try creating a new branch
6721    cx_b.update(|cx| {
6722        project_b.update(cx, |project, cx| {
6723            project.update_or_create_branch(root_path.clone(), "totally-new-branch".to_string(), cx)
6724        })
6725    })
6726    .await
6727    .unwrap();
6728
6729    executor.run_until_parked();
6730
6731    let host_branch = cx_a.update(|cx| {
6732        project_a.update(cx, |project, cx| {
6733            project.worktree_store().update(cx, |worktree_store, cx| {
6734                worktree_store.current_branch(root_path, cx).unwrap()
6735            })
6736        })
6737    });
6738
6739    assert_eq!(host_branch.as_ref(), "totally-new-branch");
6740}