Add test

src/state/CallViewModel/localMember/LocalTransport.test.ts

@@ -21,7 +21,9 @@ import * as openIDSFU from "../../../livekit/openIDSFU";
 
 describe("LocalTransport", () => {
   let scope: ObservableScope;
-  beforeEach(() => (scope = new ObservableScope()));
+  beforeEach(() => {
+    scope = new ObservableScope();
+  });
   afterEach(() => scope.end());
 
   it("throws if config is missing", async () => {
@@ -161,4 +163,41 @@ describe("LocalTransport", () => {
       type: "livekit",
     });
   });
+
+  it("supports getting a transport from the backend", async () => {
+    // Use config so transport discovery succeeds, but delay OpenID JWT fetch
+    const memberships$ = new BehaviorSubject(new Epoch([]));
+    const openIdResolver = Promise.withResolvers<openIDSFU.SFUConfig>();
+
+    vi.spyOn(openIDSFU, "getSFUConfigWithOpenID").mockReturnValue(
+      openIdResolver.promise,
+    );
+
+    const localTransport$ = createLocalTransport$({
+      scope,
+      roomId: "!room:example.org",
+      useOldestMember$: constant(true),
+      memberships$,
+      client: {
+        getDomain: () => "",
+        // eslint-disable-next-line @typescript-eslint/naming-convention
+        _unstable_getRTCTransports: async () =>
+          Promise.resolve([
+            { type: "livekit", livekit_service_url: "https://lk.example.org" },
+          ]),
+        getOpenIdToken: vi.fn(),
+        getDeviceId: vi.fn(),
+      },
+    });
+
+    openIdResolver.resolve({ url: "https://lk.example.org", jwt: "jwt" });
+    expect(localTransport$.value).toBe(null);
+    await flushPromises();
+    // final
+    expect(localTransport$.value).toStrictEqual({
+      livekit_alias: "!room:example.org",
+      livekit_service_url: "https://lk.example.org",
+      type: "livekit",
+    });
+  });
 });