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469 lines
16 KiB
TypeScript
469 lines
16 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { mocked } from "jest-mock";
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import { MatrixClient, MatrixEvent } from "matrix-js-sdk/src/matrix";
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import { Playback, PlaybackState } from "../../../src/audio/Playback";
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import { PlaybackManager } from "../../../src/audio/PlaybackManager";
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import { RelationsHelperEvent } from "../../../src/events/RelationsHelper";
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import { MediaEventHelper } from "../../../src/utils/MediaEventHelper";
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import {
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VoiceBroadcastInfoState,
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VoiceBroadcastLiveness,
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VoiceBroadcastPlayback,
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VoiceBroadcastPlaybackEvent,
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VoiceBroadcastPlaybackState,
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} from "../../../src/voice-broadcast";
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import { flushPromises, stubClient } from "../../test-utils";
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import { createTestPlayback } from "../../test-utils/audio";
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import { mkVoiceBroadcastChunkEvent, mkVoiceBroadcastInfoStateEvent } from "../utils/test-utils";
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jest.mock("../../../src/events/getReferenceRelationsForEvent", () => ({
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getReferenceRelationsForEvent: jest.fn(),
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}));
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jest.mock("../../../src/utils/MediaEventHelper", () => ({
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MediaEventHelper: jest.fn(),
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}));
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describe("VoiceBroadcastPlayback", () => {
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const userId = "@user:example.com";
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let deviceId: string;
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const roomId = "!room:example.com";
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let client: MatrixClient;
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let infoEvent: MatrixEvent;
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let playback: VoiceBroadcastPlayback;
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let onStateChanged: (state: VoiceBroadcastPlaybackState) => void;
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let chunk1Event: MatrixEvent;
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let chunk2Event: MatrixEvent;
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let chunk2BEvent: MatrixEvent;
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let chunk3Event: MatrixEvent;
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const chunk1Length = 2300;
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const chunk2Length = 4200;
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const chunk3Length = 6900;
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const chunk1Data = new ArrayBuffer(2);
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const chunk2Data = new ArrayBuffer(3);
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const chunk3Data = new ArrayBuffer(3);
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let chunk1Helper: MediaEventHelper;
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let chunk2Helper: MediaEventHelper;
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let chunk3Helper: MediaEventHelper;
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let chunk1Playback: Playback;
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let chunk2Playback: Playback;
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let chunk3Playback: Playback;
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const itShouldSetTheStateTo = (state: VoiceBroadcastPlaybackState) => {
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it(`should set the state to ${state}`, () => {
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expect(playback.getState()).toBe(state);
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});
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};
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const itShouldEmitAStateChangedEvent = (state: VoiceBroadcastPlaybackState) => {
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it(`should emit a ${state} state changed event`, () => {
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expect(mocked(onStateChanged)).toHaveBeenCalledWith(state, playback);
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});
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};
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const itShouldHaveLiveness = (liveness: VoiceBroadcastLiveness): void => {
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it(`should have liveness ${liveness}`, () => {
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expect(playback.getLiveness()).toBe(liveness);
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});
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};
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const startPlayback = () => {
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beforeEach(async () => {
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await playback.start();
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});
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};
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const pausePlayback = () => {
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beforeEach(() => {
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playback.pause();
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});
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};
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const stopPlayback = () => {
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beforeEach(() => {
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playback.stop();
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});
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};
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const mkChunkHelper = (data: ArrayBuffer): MediaEventHelper => {
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return {
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sourceBlob: {
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cachedValue: new Blob(),
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done: false,
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value: {
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// @ts-ignore
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arrayBuffer: jest.fn().mockResolvedValue(data),
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},
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},
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};
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};
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const mkInfoEvent = (state: VoiceBroadcastInfoState) => {
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return mkVoiceBroadcastInfoStateEvent(
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roomId,
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state,
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userId,
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deviceId,
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);
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};
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const mkPlayback = async () => {
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const playback = new VoiceBroadcastPlayback(infoEvent, client);
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jest.spyOn(playback, "removeAllListeners");
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jest.spyOn(playback, "destroy");
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playback.on(VoiceBroadcastPlaybackEvent.StateChanged, onStateChanged);
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await flushPromises();
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return playback;
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};
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const setUpChunkEvents = (chunkEvents: MatrixEvent[]) => {
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mocked(client.relations).mockResolvedValueOnce({
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events: chunkEvents,
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});
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};
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beforeAll(() => {
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client = stubClient();
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deviceId = client.getDeviceId() || "";
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chunk1Event = mkVoiceBroadcastChunkEvent(userId, roomId, chunk1Length, 1);
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chunk2Event = mkVoiceBroadcastChunkEvent(userId, roomId, chunk2Length, 2);
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chunk2Event.setTxnId("tx-id-1");
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chunk2BEvent = mkVoiceBroadcastChunkEvent(userId, roomId, chunk2Length, 2);
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chunk2BEvent.setTxnId("tx-id-1");
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chunk3Event = mkVoiceBroadcastChunkEvent(userId, roomId, chunk3Length, 3);
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chunk1Helper = mkChunkHelper(chunk1Data);
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chunk2Helper = mkChunkHelper(chunk2Data);
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chunk3Helper = mkChunkHelper(chunk3Data);
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chunk1Playback = createTestPlayback();
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chunk2Playback = createTestPlayback();
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chunk3Playback = createTestPlayback();
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jest.spyOn(PlaybackManager.instance, "createPlaybackInstance").mockImplementation(
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(buffer: ArrayBuffer, _waveForm?: number[]) => {
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if (buffer === chunk1Data) return chunk1Playback;
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if (buffer === chunk2Data) return chunk2Playback;
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if (buffer === chunk3Data) return chunk3Playback;
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throw new Error("unexpected buffer");
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},
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);
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mocked(MediaEventHelper).mockImplementation((event: MatrixEvent): any => {
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if (event === chunk1Event) return chunk1Helper;
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if (event === chunk2Event) return chunk2Helper;
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if (event === chunk3Event) return chunk3Helper;
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});
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});
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beforeEach(() => {
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jest.clearAllMocks();
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onStateChanged = jest.fn();
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});
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afterEach(() => {
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playback.destroy();
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});
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describe(`when there is a ${VoiceBroadcastInfoState.Resumed} broadcast without chunks yet`, () => {
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beforeEach(async () => {
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// info relation
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mocked(client.relations).mockResolvedValueOnce({ events: [] });
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setUpChunkEvents([]);
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infoEvent = mkInfoEvent(VoiceBroadcastInfoState.Resumed);
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playback = await mkPlayback();
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});
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describe("and calling start", () => {
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startPlayback();
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itShouldHaveLiveness("grey");
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it("should be in buffering state", () => {
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expect(playback.getState()).toBe(VoiceBroadcastPlaybackState.Buffering);
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});
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it("should have duration 0", () => {
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expect(playback.durationSeconds).toBe(0);
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});
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it("should be at time 0", () => {
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expect(playback.timeSeconds).toBe(0);
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});
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describe("and calling stop", () => {
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stopPlayback();
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Stopped);
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describe("and calling pause", () => {
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pausePlayback();
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// stopped voice broadcasts cannot be paused
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Stopped);
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});
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});
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describe("and calling pause", () => {
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pausePlayback();
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Paused);
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});
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describe("and receiving the first chunk", () => {
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beforeEach(() => {
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// TODO Michael W: Use RelationsHelper
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// @ts-ignore
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playback.chunkRelationHelper.emit(RelationsHelperEvent.Add, chunk1Event);
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});
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Playing);
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itShouldHaveLiveness("live");
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it("should update the duration", () => {
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expect(playback.durationSeconds).toBe(2.3);
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});
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it("should play the first chunk", () => {
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expect(chunk1Playback.play).toHaveBeenCalled();
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});
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});
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});
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});
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describe(`when there is a ${VoiceBroadcastInfoState.Resumed} voice broadcast with some chunks`, () => {
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beforeEach(async () => {
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// info relation
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mocked(client.relations).mockResolvedValueOnce({ events: [] });
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setUpChunkEvents([chunk2Event, chunk1Event]);
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infoEvent = mkInfoEvent(VoiceBroadcastInfoState.Resumed);
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playback = await mkPlayback();
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});
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it("durationSeconds should have the length of the known chunks", () => {
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expect(playback.durationSeconds).toEqual(6.5);
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});
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describe("and an event with the same transaction Id occurs", () => {
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beforeEach(() => {
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// @ts-ignore
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playback.chunkRelationHelper.emit(RelationsHelperEvent.Add, chunk2BEvent);
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});
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it("durationSeconds should not change", () => {
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expect(playback.durationSeconds).toEqual(6.5);
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});
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});
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describe("and calling start", () => {
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startPlayback();
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it("should play the last chunk", () => {
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expect(playback.getState()).toBe(VoiceBroadcastPlaybackState.Playing);
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// assert that the last chunk is played first
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expect(chunk2Playback.play).toHaveBeenCalled();
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expect(chunk1Playback.play).not.toHaveBeenCalled();
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});
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describe("and the playback of the last chunk ended", () => {
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beforeEach(() => {
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chunk2Playback.emit(PlaybackState.Stopped);
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});
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Buffering);
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describe("and the next chunk arrived", () => {
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beforeEach(() => {
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// TODO Michael W: Use RelationsHelper
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// @ts-ignore
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playback.chunkRelationHelper.emit(RelationsHelperEvent.Add, chunk3Event);
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});
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Playing);
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it("should play the next chunk", () => {
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expect(chunk3Playback.play).toHaveBeenCalled();
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});
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});
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});
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describe("and the info event is deleted", () => {
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beforeEach(() => {
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infoEvent.makeRedacted(new MatrixEvent({}));
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});
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it("should stop and destroy the playback", () => {
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expect(playback.getState()).toBe(VoiceBroadcastPlaybackState.Stopped);
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expect(playback.destroy).toHaveBeenCalled();
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});
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});
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});
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});
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describe("when there is a stopped voice broadcast", () => {
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beforeEach(async () => {
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setUpChunkEvents([chunk2Event, chunk1Event]);
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infoEvent = mkInfoEvent(VoiceBroadcastInfoState.Stopped);
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playback = await mkPlayback();
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});
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it("should expose the info event", () => {
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expect(playback.infoEvent).toBe(infoEvent);
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});
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Stopped);
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describe("and calling start", () => {
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startPlayback();
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Playing);
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it("should play the chunks beginning with the first one", () => {
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// assert that the first chunk is being played
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expect(chunk1Playback.play).toHaveBeenCalled();
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expect(chunk2Playback.play).not.toHaveBeenCalled();
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});
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describe("and the chunk playback progresses", () => {
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beforeEach(() => {
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chunk1Playback.clockInfo.liveData.update([11]);
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});
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it("should update the time", () => {
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expect(playback.timeSeconds).toBe(11);
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});
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});
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describe("and skipping to the middle of the second chunk", () => {
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const middleOfSecondChunk = (chunk1Length + (chunk2Length / 2)) / 1000;
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beforeEach(async () => {
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await playback.skipTo(middleOfSecondChunk);
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});
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it("should play the second chunk", () => {
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expect(chunk1Playback.stop).toHaveBeenCalled();
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expect(chunk2Playback.play).toHaveBeenCalled();
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});
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it("should update the time", () => {
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expect(playback.timeSeconds).toBe(middleOfSecondChunk);
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});
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describe("and skipping to the start", () => {
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beforeEach(async () => {
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await playback.skipTo(0);
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});
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it("should play the second chunk", () => {
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expect(chunk1Playback.play).toHaveBeenCalled();
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expect(chunk2Playback.stop).toHaveBeenCalled();
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});
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it("should update the time", () => {
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expect(playback.timeSeconds).toBe(0);
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});
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});
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});
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describe("and the first chunk ends", () => {
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beforeEach(() => {
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chunk1Playback.emit(PlaybackState.Stopped);
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});
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it("should play until the end", () => {
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// assert that the second chunk is being played
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expect(chunk2Playback.play).toHaveBeenCalled();
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// simulate end of second chunk
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chunk2Playback.emit(PlaybackState.Stopped);
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// assert that the entire playback is now in stopped state
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expect(playback.getState()).toBe(VoiceBroadcastPlaybackState.Stopped);
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});
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});
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describe("and calling pause", () => {
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pausePlayback();
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Paused);
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itShouldEmitAStateChangedEvent(VoiceBroadcastPlaybackState.Paused);
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});
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describe("and calling stop", () => {
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stopPlayback();
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Stopped);
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});
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describe("and calling destroy", () => {
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beforeEach(() => {
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playback.destroy();
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});
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it("should call removeAllListeners", () => {
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expect(playback.removeAllListeners).toHaveBeenCalled();
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});
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it("should call destroy on the playbacks", () => {
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expect(chunk1Playback.destroy).toHaveBeenCalled();
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expect(chunk2Playback.destroy).toHaveBeenCalled();
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});
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});
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});
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describe("and calling toggle for the first time", () => {
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beforeEach(async () => {
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await playback.toggle();
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});
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Playing);
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describe("and calling toggle a second time", () => {
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beforeEach(async () => {
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await playback.toggle();
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});
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Paused);
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describe("and calling toggle a third time", () => {
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beforeEach(async () => {
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await playback.toggle();
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});
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Playing);
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});
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});
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});
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describe("and calling stop", () => {
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stopPlayback();
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Stopped);
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describe("and calling toggle", () => {
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beforeEach(async () => {
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mocked(onStateChanged).mockReset();
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await playback.toggle();
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});
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itShouldSetTheStateTo(VoiceBroadcastPlaybackState.Playing);
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itShouldEmitAStateChangedEvent(VoiceBroadcastPlaybackState.Playing);
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});
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});
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});
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});
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