test_server.rs

  1use crate::{
  2    db::{tests::TestDb, NewUserParams, UserId},
  3    executor::Executor,
  4    rpc::{Server, CLEANUP_TIMEOUT, RECONNECT_TIMEOUT},
  5    AppState, Config,
  6};
  7use anyhow::anyhow;
  8use call::ActiveCall;
  9use channel::{ChannelBuffer, ChannelStore};
 10use client::{
 11    self, proto::PeerId, Client, Connection, Credentials, EstablishConnectionError, UserStore,
 12};
 13use collab_ui::channel_view::ChannelView;
 14use collections::{HashMap, HashSet};
 15use fs::FakeFs;
 16use futures::{channel::oneshot, StreamExt as _};
 17use gpui::{BackgroundExecutor, Context, Model, Task, TestAppContext, View, VisualTestContext};
 18use language::LanguageRegistry;
 19use node_runtime::FakeNodeRuntime;
 20
 21use notifications::NotificationStore;
 22use parking_lot::Mutex;
 23use project::{Project, WorktreeId};
 24use rpc::{
 25    proto::{self, ChannelRole},
 26    RECEIVE_TIMEOUT,
 27};
 28use serde_json::json;
 29use settings::SettingsStore;
 30use std::{
 31    cell::{Ref, RefCell, RefMut},
 32    env,
 33    ops::{Deref, DerefMut},
 34    path::Path,
 35    sync::{
 36        atomic::{AtomicBool, AtomicUsize, Ordering::SeqCst},
 37        Arc,
 38    },
 39};
 40use util::http::FakeHttpClient;
 41use workspace::{Workspace, WorkspaceStore};
 42
 43pub struct TestServer {
 44    pub app_state: Arc<AppState>,
 45    pub test_live_kit_server: Arc<live_kit_client::TestServer>,
 46    server: Arc<Server>,
 47    next_github_user_id: i32,
 48    connection_killers: Arc<Mutex<HashMap<PeerId, Arc<AtomicBool>>>>,
 49    forbid_connections: Arc<AtomicBool>,
 50    _test_db: TestDb,
 51}
 52
 53pub struct TestClient {
 54    pub username: String,
 55    pub app_state: Arc<workspace::AppState>,
 56    channel_store: Model<ChannelStore>,
 57    notification_store: Model<NotificationStore>,
 58    state: RefCell<TestClientState>,
 59}
 60
 61#[derive(Default)]
 62struct TestClientState {
 63    local_projects: Vec<Model<Project>>,
 64    remote_projects: Vec<Model<Project>>,
 65    buffers: HashMap<Model<Project>, HashSet<Model<language::Buffer>>>,
 66    channel_buffers: HashSet<Model<ChannelBuffer>>,
 67}
 68
 69pub struct ContactsSummary {
 70    pub current: Vec<String>,
 71    pub outgoing_requests: Vec<String>,
 72    pub incoming_requests: Vec<String>,
 73}
 74
 75impl TestServer {
 76    pub async fn start(deterministic: BackgroundExecutor) -> Self {
 77        static NEXT_LIVE_KIT_SERVER_ID: AtomicUsize = AtomicUsize::new(0);
 78
 79        let use_postgres = env::var("USE_POSTGRES").ok();
 80        let use_postgres = use_postgres.as_deref();
 81        let test_db = if use_postgres == Some("true") || use_postgres == Some("1") {
 82            TestDb::postgres(deterministic.clone())
 83        } else {
 84            TestDb::sqlite(deterministic.clone())
 85        };
 86        let live_kit_server_id = NEXT_LIVE_KIT_SERVER_ID.fetch_add(1, SeqCst);
 87        let live_kit_server = live_kit_client::TestServer::create(
 88            format!("http://livekit.{}.test", live_kit_server_id),
 89            format!("devkey-{}", live_kit_server_id),
 90            format!("secret-{}", live_kit_server_id),
 91            deterministic.clone(),
 92        )
 93        .unwrap();
 94        let app_state = Self::build_app_state(&test_db, &live_kit_server).await;
 95        let epoch = app_state
 96            .db
 97            .create_server(&app_state.config.zed_environment)
 98            .await
 99            .unwrap();
100        let server = Server::new(
101            epoch,
102            app_state.clone(),
103            Executor::Deterministic(deterministic.clone()),
104        );
105        server.start().await.unwrap();
106        // Advance clock to ensure the server's cleanup task is finished.
107        deterministic.advance_clock(CLEANUP_TIMEOUT);
108        Self {
109            app_state,
110            server,
111            connection_killers: Default::default(),
112            forbid_connections: Default::default(),
113            next_github_user_id: 0,
114            _test_db: test_db,
115            test_live_kit_server: live_kit_server,
116        }
117    }
118
119    pub async fn start2(
120        cx_a: &mut TestAppContext,
121        cx_b: &mut TestAppContext,
122    ) -> (TestServer, TestClient, TestClient, u64) {
123        let mut server = Self::start(cx_a.executor()).await;
124        let client_a = server.create_client(cx_a, "user_a").await;
125        let client_b = server.create_client(cx_b, "user_b").await;
126        let channel_id = server
127            .make_channel(
128                "test-channel",
129                None,
130                (&client_a, cx_a),
131                &mut [(&client_b, cx_b)],
132            )
133            .await;
134        cx_a.run_until_parked();
135
136        (server, client_a, client_b, channel_id)
137    }
138
139    pub async fn start1<'a>(cx: &'a mut TestAppContext) -> TestClient {
140        let mut server = Self::start(cx.executor().clone()).await;
141        server.create_client(cx, "user_a").await
142    }
143
144    pub async fn reset(&self) {
145        self.app_state.db.reset();
146        let epoch = self
147            .app_state
148            .db
149            .create_server(&self.app_state.config.zed_environment)
150            .await
151            .unwrap();
152        self.server.reset(epoch);
153    }
154
155    pub async fn create_client(&mut self, cx: &mut TestAppContext, name: &str) -> TestClient {
156        cx.update(|cx| {
157            if cx.has_global::<SettingsStore>() {
158                panic!("Same cx used to create two test clients")
159            }
160            let settings = SettingsStore::test(cx);
161            cx.set_global(settings);
162            release_channel::init("0.0.0", cx);
163            client::init_settings(cx);
164        });
165
166        let http = FakeHttpClient::with_404_response();
167        let user_id = if let Ok(Some(user)) = self.app_state.db.get_user_by_github_login(name).await
168        {
169            user.id
170        } else {
171            let github_user_id = self.next_github_user_id;
172            self.next_github_user_id += 1;
173            self.app_state
174                .db
175                .create_user(
176                    &format!("{name}@example.com"),
177                    false,
178                    NewUserParams {
179                        github_login: name.into(),
180                        github_user_id,
181                    },
182                )
183                .await
184                .expect("creating user failed")
185                .user_id
186        };
187        let client_name = name.to_string();
188        let mut client = cx.update(|cx| Client::new(http.clone(), cx));
189        let server = self.server.clone();
190        let db = self.app_state.db.clone();
191        let connection_killers = self.connection_killers.clone();
192        let forbid_connections = self.forbid_connections.clone();
193
194        Arc::get_mut(&mut client)
195            .unwrap()
196            .set_id(user_id.to_proto())
197            .override_authenticate(move |cx| {
198                cx.spawn(|_| async move {
199                    let access_token = "the-token".to_string();
200                    Ok(Credentials {
201                        user_id: user_id.to_proto(),
202                        access_token,
203                    })
204                })
205            })
206            .override_establish_connection(move |credentials, cx| {
207                assert_eq!(credentials.user_id, user_id.0 as u64);
208                assert_eq!(credentials.access_token, "the-token");
209
210                let server = server.clone();
211                let db = db.clone();
212                let connection_killers = connection_killers.clone();
213                let forbid_connections = forbid_connections.clone();
214                let client_name = client_name.clone();
215                cx.spawn(move |cx| async move {
216                    if forbid_connections.load(SeqCst) {
217                        Err(EstablishConnectionError::other(anyhow!(
218                            "server is forbidding connections"
219                        )))
220                    } else {
221                        let (client_conn, server_conn, killed) =
222                            Connection::in_memory(cx.background_executor().clone());
223                        let (connection_id_tx, connection_id_rx) = oneshot::channel();
224                        let user = db
225                            .get_user_by_id(user_id)
226                            .await
227                            .expect("retrieving user failed")
228                            .unwrap();
229                        cx.background_executor()
230                            .spawn(server.handle_connection(
231                                server_conn,
232                                client_name,
233                                user,
234                                None,
235                                Some(connection_id_tx),
236                                Executor::Deterministic(cx.background_executor().clone()),
237                            ))
238                            .detach();
239                        let connection_id = connection_id_rx.await.unwrap();
240                        connection_killers
241                            .lock()
242                            .insert(connection_id.into(), killed);
243                        Ok(client_conn)
244                    }
245                })
246            });
247
248        let fs = FakeFs::new(cx.executor());
249        let user_store = cx.new_model(|cx| UserStore::new(client.clone(), cx));
250        let workspace_store = cx.new_model(|cx| WorkspaceStore::new(client.clone(), cx));
251        let mut language_registry = LanguageRegistry::test();
252        language_registry.set_executor(cx.executor());
253        let app_state = Arc::new(workspace::AppState {
254            client: client.clone(),
255            user_store: user_store.clone(),
256            workspace_store,
257            languages: Arc::new(language_registry),
258            fs: fs.clone(),
259            build_window_options: |_, _, _| Default::default(),
260            node_runtime: FakeNodeRuntime::new(),
261        });
262
263        cx.update(|cx| {
264            theme::init(theme::LoadThemes::JustBase, cx);
265            Project::init(&client, cx);
266            client::init(&client, cx);
267            language::init(cx);
268            editor::init(cx);
269            workspace::init(app_state.clone(), cx);
270            call::init(client.clone(), user_store.clone(), cx);
271            channel::init(&client, user_store.clone(), cx);
272            notifications::init(client.clone(), user_store, cx);
273            collab_ui::init(&app_state, cx);
274            file_finder::init(cx);
275            menu::init();
276            settings::KeymapFile::load_asset("keymaps/default.json", cx).unwrap();
277        });
278
279        client
280            .authenticate_and_connect(false, &cx.to_async())
281            .await
282            .unwrap();
283
284        let client = TestClient {
285            app_state,
286            username: name.to_string(),
287            channel_store: cx.read(ChannelStore::global).clone(),
288            notification_store: cx.read(NotificationStore::global).clone(),
289            state: Default::default(),
290        };
291        client.wait_for_current_user(cx).await;
292        client
293    }
294
295    pub fn disconnect_client(&self, peer_id: PeerId) {
296        self.connection_killers
297            .lock()
298            .remove(&peer_id)
299            .unwrap()
300            .store(true, SeqCst);
301    }
302
303    pub fn simulate_long_connection_interruption(
304        &self,
305        peer_id: PeerId,
306        deterministic: BackgroundExecutor,
307    ) {
308        self.forbid_connections();
309        self.disconnect_client(peer_id);
310        deterministic.advance_clock(RECEIVE_TIMEOUT + RECONNECT_TIMEOUT);
311        self.allow_connections();
312        deterministic.advance_clock(RECEIVE_TIMEOUT + RECONNECT_TIMEOUT);
313        deterministic.run_until_parked();
314    }
315
316    pub fn forbid_connections(&self) {
317        self.forbid_connections.store(true, SeqCst);
318    }
319
320    pub fn allow_connections(&self) {
321        self.forbid_connections.store(false, SeqCst);
322    }
323
324    pub async fn make_contacts(&self, clients: &mut [(&TestClient, &mut TestAppContext)]) {
325        for ix in 1..clients.len() {
326            let (left, right) = clients.split_at_mut(ix);
327            let (client_a, cx_a) = left.last_mut().unwrap();
328            for (client_b, cx_b) in right {
329                client_a
330                    .app_state
331                    .user_store
332                    .update(*cx_a, |store, cx| {
333                        store.request_contact(client_b.user_id().unwrap(), cx)
334                    })
335                    .await
336                    .unwrap();
337                cx_a.executor().run_until_parked();
338                client_b
339                    .app_state
340                    .user_store
341                    .update(*cx_b, |store, cx| {
342                        store.respond_to_contact_request(client_a.user_id().unwrap(), true, cx)
343                    })
344                    .await
345                    .unwrap();
346            }
347        }
348    }
349
350    pub async fn make_channel(
351        &self,
352        channel: &str,
353        parent: Option<u64>,
354        admin: (&TestClient, &mut TestAppContext),
355        members: &mut [(&TestClient, &mut TestAppContext)],
356    ) -> u64 {
357        let (_, admin_cx) = admin;
358        let channel_id = admin_cx
359            .read(ChannelStore::global)
360            .update(admin_cx, |channel_store, cx| {
361                channel_store.create_channel(channel, parent, cx)
362            })
363            .await
364            .unwrap();
365
366        for (member_client, member_cx) in members {
367            admin_cx
368                .read(ChannelStore::global)
369                .update(admin_cx, |channel_store, cx| {
370                    channel_store.invite_member(
371                        channel_id,
372                        member_client.user_id().unwrap(),
373                        ChannelRole::Member,
374                        cx,
375                    )
376                })
377                .await
378                .unwrap();
379
380            admin_cx.executor().run_until_parked();
381
382            member_cx
383                .read(ChannelStore::global)
384                .update(*member_cx, |channels, cx| {
385                    channels.respond_to_channel_invite(channel_id, true, cx)
386                })
387                .await
388                .unwrap();
389        }
390
391        channel_id
392    }
393
394    pub async fn make_public_channel(
395        &self,
396        channel: &str,
397        client: &TestClient,
398        cx: &mut TestAppContext,
399    ) -> u64 {
400        let channel_id = self
401            .make_channel(channel, None, (client, cx), &mut [])
402            .await;
403
404        client
405            .channel_store()
406            .update(cx, |channel_store, cx| {
407                channel_store.set_channel_visibility(
408                    channel_id,
409                    proto::ChannelVisibility::Public,
410                    cx,
411                )
412            })
413            .await
414            .unwrap();
415
416        channel_id
417    }
418
419    pub async fn make_channel_tree(
420        &self,
421        channels: &[(&str, Option<&str>)],
422        creator: (&TestClient, &mut TestAppContext),
423    ) -> Vec<u64> {
424        let mut observed_channels = HashMap::default();
425        let mut result = Vec::new();
426        for (channel, parent) in channels {
427            let id;
428            if let Some(parent) = parent {
429                if let Some(parent_id) = observed_channels.get(parent) {
430                    id = self
431                        .make_channel(channel, Some(*parent_id), (creator.0, creator.1), &mut [])
432                        .await;
433                } else {
434                    panic!(
435                        "Edge {}->{} referenced before {} was created",
436                        parent, channel, parent
437                    )
438                }
439            } else {
440                id = self
441                    .make_channel(channel, None, (creator.0, creator.1), &mut [])
442                    .await;
443            }
444
445            observed_channels.insert(channel, id);
446            result.push(id);
447        }
448
449        result
450    }
451
452    pub async fn create_room(&self, clients: &mut [(&TestClient, &mut TestAppContext)]) {
453        self.make_contacts(clients).await;
454
455        let (left, right) = clients.split_at_mut(1);
456        let (_client_a, cx_a) = &mut left[0];
457        let active_call_a = cx_a.read(ActiveCall::global);
458
459        for (client_b, cx_b) in right {
460            let user_id_b = client_b.current_user_id(*cx_b).to_proto();
461            active_call_a
462                .update(*cx_a, |call, cx| call.invite(user_id_b, None, cx))
463                .await
464                .unwrap();
465
466            cx_b.executor().run_until_parked();
467            let active_call_b = cx_b.read(ActiveCall::global);
468            active_call_b
469                .update(*cx_b, |call, cx| call.accept_incoming(cx))
470                .await
471                .unwrap();
472        }
473    }
474
475    pub async fn build_app_state(
476        test_db: &TestDb,
477        fake_server: &live_kit_client::TestServer,
478    ) -> Arc<AppState> {
479        Arc::new(AppState {
480            db: test_db.db().clone(),
481            live_kit_client: Some(Arc::new(fake_server.create_api_client())),
482            blob_store_client: None,
483            config: Config {
484                http_port: 0,
485                database_url: "".into(),
486                database_max_connections: 0,
487                api_token: "".into(),
488                invite_link_prefix: "".into(),
489                live_kit_server: None,
490                live_kit_key: None,
491                live_kit_secret: None,
492                rust_log: None,
493                log_json: None,
494                zed_environment: "test".into(),
495                blob_store_url: None,
496                blob_store_region: None,
497                blob_store_access_key: None,
498                blob_store_secret_key: None,
499                blob_store_bucket: None,
500            },
501        })
502    }
503}
504
505impl Deref for TestServer {
506    type Target = Server;
507
508    fn deref(&self) -> &Self::Target {
509        &self.server
510    }
511}
512
513impl Drop for TestServer {
514    fn drop(&mut self) {
515        self.server.teardown();
516        self.test_live_kit_server.teardown().unwrap();
517    }
518}
519
520impl Deref for TestClient {
521    type Target = Arc<Client>;
522
523    fn deref(&self) -> &Self::Target {
524        &self.app_state.client
525    }
526}
527
528impl TestClient {
529    pub fn fs(&self) -> &FakeFs {
530        self.app_state.fs.as_fake()
531    }
532
533    pub fn channel_store(&self) -> &Model<ChannelStore> {
534        &self.channel_store
535    }
536
537    pub fn notification_store(&self) -> &Model<NotificationStore> {
538        &self.notification_store
539    }
540
541    pub fn user_store(&self) -> &Model<UserStore> {
542        &self.app_state.user_store
543    }
544
545    pub fn language_registry(&self) -> &Arc<LanguageRegistry> {
546        &self.app_state.languages
547    }
548
549    pub fn client(&self) -> &Arc<Client> {
550        &self.app_state.client
551    }
552
553    pub fn current_user_id(&self, cx: &TestAppContext) -> UserId {
554        UserId::from_proto(
555            self.app_state
556                .user_store
557                .read_with(cx, |user_store, _| user_store.current_user().unwrap().id),
558        )
559    }
560
561    pub async fn wait_for_current_user(&self, cx: &TestAppContext) {
562        let mut authed_user = self
563            .app_state
564            .user_store
565            .read_with(cx, |user_store, _| user_store.watch_current_user());
566        while authed_user.next().await.unwrap().is_none() {}
567    }
568
569    pub async fn clear_contacts(&self, cx: &mut TestAppContext) {
570        self.app_state
571            .user_store
572            .update(cx, |store, _| store.clear_contacts())
573            .await;
574    }
575
576    pub fn local_projects<'a>(&'a self) -> impl Deref<Target = Vec<Model<Project>>> + 'a {
577        Ref::map(self.state.borrow(), |state| &state.local_projects)
578    }
579
580    pub fn remote_projects<'a>(&'a self) -> impl Deref<Target = Vec<Model<Project>>> + 'a {
581        Ref::map(self.state.borrow(), |state| &state.remote_projects)
582    }
583
584    pub fn local_projects_mut<'a>(&'a self) -> impl DerefMut<Target = Vec<Model<Project>>> + 'a {
585        RefMut::map(self.state.borrow_mut(), |state| &mut state.local_projects)
586    }
587
588    pub fn remote_projects_mut<'a>(&'a self) -> impl DerefMut<Target = Vec<Model<Project>>> + 'a {
589        RefMut::map(self.state.borrow_mut(), |state| &mut state.remote_projects)
590    }
591
592    pub fn buffers_for_project<'a>(
593        &'a self,
594        project: &Model<Project>,
595    ) -> impl DerefMut<Target = HashSet<Model<language::Buffer>>> + 'a {
596        RefMut::map(self.state.borrow_mut(), |state| {
597            state.buffers.entry(project.clone()).or_default()
598        })
599    }
600
601    pub fn buffers<'a>(
602        &'a self,
603    ) -> impl DerefMut<Target = HashMap<Model<Project>, HashSet<Model<language::Buffer>>>> + 'a
604    {
605        RefMut::map(self.state.borrow_mut(), |state| &mut state.buffers)
606    }
607
608    pub fn channel_buffers<'a>(
609        &'a self,
610    ) -> impl DerefMut<Target = HashSet<Model<ChannelBuffer>>> + 'a {
611        RefMut::map(self.state.borrow_mut(), |state| &mut state.channel_buffers)
612    }
613
614    pub fn summarize_contacts(&self, cx: &TestAppContext) -> ContactsSummary {
615        self.app_state
616            .user_store
617            .read_with(cx, |store, _| ContactsSummary {
618                current: store
619                    .contacts()
620                    .iter()
621                    .map(|contact| contact.user.github_login.clone())
622                    .collect(),
623                outgoing_requests: store
624                    .outgoing_contact_requests()
625                    .iter()
626                    .map(|user| user.github_login.clone())
627                    .collect(),
628                incoming_requests: store
629                    .incoming_contact_requests()
630                    .iter()
631                    .map(|user| user.github_login.clone())
632                    .collect(),
633            })
634    }
635
636    pub async fn build_local_project(
637        &self,
638        root_path: impl AsRef<Path>,
639        cx: &mut TestAppContext,
640    ) -> (Model<Project>, WorktreeId) {
641        let project = self.build_empty_local_project(cx);
642        let (worktree, _) = project
643            .update(cx, |p, cx| {
644                p.find_or_create_local_worktree(root_path, true, cx)
645            })
646            .await
647            .unwrap();
648        worktree
649            .read_with(cx, |tree, _| tree.as_local().unwrap().scan_complete())
650            .await;
651        (project, worktree.read_with(cx, |tree, _| tree.id()))
652    }
653
654    pub async fn build_test_project(&self, cx: &mut TestAppContext) -> Model<Project> {
655        self.fs()
656            .insert_tree(
657                "/a",
658                json!({
659                    "1.txt": "one\none\none",
660                    "2.js": "function two() { return 2; }",
661                    "3.rs": "mod test",
662                }),
663            )
664            .await;
665        self.build_local_project("/a", cx).await.0
666    }
667
668    pub async fn host_workspace(
669        &self,
670        workspace: &View<Workspace>,
671        channel_id: u64,
672        cx: &mut VisualTestContext,
673    ) {
674        cx.update(|cx| {
675            let active_call = ActiveCall::global(cx);
676            active_call.update(cx, |call, cx| call.join_channel(channel_id, cx))
677        })
678        .await
679        .unwrap();
680        cx.update(|cx| {
681            let active_call = ActiveCall::global(cx);
682            let project = workspace.read(cx).project().clone();
683            active_call.update(cx, |call, cx| call.share_project(project, cx))
684        })
685        .await
686        .unwrap();
687        cx.executor().run_until_parked();
688    }
689
690    pub async fn join_workspace<'a>(
691        &'a self,
692        channel_id: u64,
693        cx: &'a mut TestAppContext,
694    ) -> (View<Workspace>, &'a mut VisualTestContext) {
695        cx.update(|cx| workspace::join_channel(channel_id, self.app_state.clone(), None, cx))
696            .await
697            .unwrap();
698        cx.run_until_parked();
699
700        self.active_workspace(cx)
701    }
702
703    pub fn build_empty_local_project(&self, cx: &mut TestAppContext) -> Model<Project> {
704        cx.update(|cx| {
705            Project::local(
706                self.client().clone(),
707                self.app_state.node_runtime.clone(),
708                self.app_state.user_store.clone(),
709                self.app_state.languages.clone(),
710                self.app_state.fs.clone(),
711                cx,
712            )
713        })
714    }
715
716    pub async fn build_remote_project(
717        &self,
718        host_project_id: u64,
719        guest_cx: &mut TestAppContext,
720    ) -> Model<Project> {
721        let active_call = guest_cx.read(ActiveCall::global);
722        let room = active_call.read_with(guest_cx, |call, _| call.room().unwrap().clone());
723        room.update(guest_cx, |room, cx| {
724            room.join_project(
725                host_project_id,
726                self.app_state.languages.clone(),
727                self.app_state.fs.clone(),
728                cx,
729            )
730        })
731        .await
732        .unwrap()
733    }
734
735    pub fn build_workspace<'a>(
736        &'a self,
737        project: &Model<Project>,
738        cx: &'a mut TestAppContext,
739    ) -> (View<Workspace>, &'a mut VisualTestContext) {
740        cx.add_window_view(|cx| {
741            cx.activate_window();
742            Workspace::new(0, project.clone(), self.app_state.clone(), cx)
743        })
744    }
745
746    pub async fn build_test_workspace<'a>(
747        &'a self,
748        cx: &'a mut TestAppContext,
749    ) -> (View<Workspace>, &'a mut VisualTestContext) {
750        let project = self.build_test_project(cx).await;
751        cx.add_window_view(|cx| {
752            cx.activate_window();
753            Workspace::new(0, project.clone(), self.app_state.clone(), cx)
754        })
755    }
756
757    pub fn active_workspace<'a>(
758        &'a self,
759        cx: &'a mut TestAppContext,
760    ) -> (View<Workspace>, &'a mut VisualTestContext) {
761        let window = cx.update(|cx| cx.active_window().unwrap().downcast::<Workspace>().unwrap());
762
763        let view = window.root_view(cx).unwrap();
764        let cx = VisualTestContext::from_window(*window.deref(), cx).as_mut();
765        // it might be nice to try and cleanup these at the end of each test.
766        (view, cx)
767    }
768}
769
770pub fn open_channel_notes(
771    channel_id: u64,
772    cx: &mut VisualTestContext,
773) -> Task<anyhow::Result<View<ChannelView>>> {
774    let window = cx.update(|cx| cx.active_window().unwrap().downcast::<Workspace>().unwrap());
775    let view = window.root_view(cx).unwrap();
776
777    cx.update(|cx| ChannelView::open(channel_id, None, view.clone(), cx))
778}
779
780impl Drop for TestClient {
781    fn drop(&mut self) {
782        self.app_state.client.teardown();
783    }
784}