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