Resume voice broadcast on load (#9475)

test/voice-broadcast/utils/VoiceBroadcastResumer-test.ts

@@ -0,0 +1,111 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { mocked } from "jest-mock";
+import { ClientEvent, MatrixClient, MatrixEvent, Room } from "matrix-js-sdk/src/matrix";
+
+import {
+    findRoomLiveVoiceBroadcastFromUserAndDevice,
+    resumeVoiceBroadcastInRoom,
+    VoiceBroadcastInfoState,
+    VoiceBroadcastResumer,
+} from "../../../src/voice-broadcast";
+import { stubClient } from "../../test-utils";
+import { mkVoiceBroadcastInfoStateEvent } from "./test-utils";
+
+jest.mock("../../../src/voice-broadcast/utils/findRoomLiveVoiceBroadcastFromUserAndDevice");
+jest.mock("../../../src/voice-broadcast/utils/resumeVoiceBroadcastInRoom");
+
+describe("VoiceBroadcastResumer", () => {
+    const roomId = "!room:example.com";
+    let client: MatrixClient;
+    let room: Room;
+    let resumer: VoiceBroadcastResumer;
+    let infoEvent: MatrixEvent;
+
+    beforeEach(() => {
+        client = stubClient();
+        jest.spyOn(client, "off");
+        room = new Room(roomId, client, client.getUserId());
+        mocked(client.getRoom).mockImplementation((getRoomId: string) => {
+            if (getRoomId === roomId) return room;
+        });
+        resumer = new VoiceBroadcastResumer(client);
+        infoEvent = mkVoiceBroadcastInfoStateEvent(
+            roomId,
+            VoiceBroadcastInfoState.Started,
+            client.getUserId(),
+            client.getDeviceId(),
+        );
+    });
+
+    afterEach(() => {
+        jest.clearAllMocks();
+    });
+
+    describe("when there is no info event", () => {
+        beforeEach(() => {
+            client.emit(ClientEvent.Room, room);
+        });
+
+        it("should not resume a broadcast", () => {
+            expect(resumeVoiceBroadcastInRoom).not.toHaveBeenCalled();
+        });
+    });
+
+    describe("when there is an info event", () => {
+        beforeEach(() => {
+            mocked(findRoomLiveVoiceBroadcastFromUserAndDevice).mockImplementation((
+                findRoom: Room,
+                userId: string,
+                deviceId: string,
+            ) => {
+                if (findRoom === room && userId === client.getUserId() && deviceId === client.getDeviceId()) {
+                    return infoEvent;
+                }
+            });
+            client.emit(ClientEvent.Room, room);
+        });
+
+        it("should resume a broadcast", () => {
+            expect(resumeVoiceBroadcastInRoom).toHaveBeenCalledWith(
+                infoEvent,
+                room,
+                client,
+            );
+        });
+
+        describe("and emitting a room event again", () => {
+            beforeEach(() => {
+                client.emit(ClientEvent.Room, room);
+            });
+
+            it("should not resume the broadcast again", () => {
+                expect(resumeVoiceBroadcastInRoom).toHaveBeenCalledTimes(1);
+            });
+        });
+    });
+
+    describe("when calling destroy", () => {
+        beforeEach(() => {
+            resumer.destroy();
+        });
+
+        it("should deregister from the client", () => {
+            expect(client.off).toHaveBeenCalledWith(ClientEvent.Room, expect.any(Function));
+        });
+    });
+});