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douboer
260
apps/miniprogram/pages/terminal/ttsPlayback.test.ts
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260
apps/miniprogram/pages/terminal/ttsPlayback.test.ts
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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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type TerminalPageOptions = {
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data?: Record<string, unknown>;
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[key: string]: unknown;
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};
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type TtsQueueItem = {
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ready?: boolean;
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playbackUrl?: string;
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remoteAudioUrl?: string;
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useRemotePlayback?: boolean;
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[key: string]: unknown;
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};
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type TerminalPageRuntime = {
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playQueue: TtsQueueItem[];
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playingSegmentIndex: number;
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playbackPhase: string;
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[key: string]: unknown;
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};
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type TerminalPageInstance = TerminalPageOptions & {
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data: Record<string, unknown>;
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ttsRuntime: TerminalPageRuntime;
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setData: (patch: Record<string, unknown>) => void;
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initTtsRuntime: () => void;
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createTtsPlaybackJob: (segments: string[]) => number;
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playTtsQueueSegment: (jobId: number, segmentIndex: number) => Promise<boolean>;
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prepareTtsQueueItem: ReturnType<typeof vi.fn>;
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localizeTerminalMessage: ReturnType<typeof vi.fn>;
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showLocalizedToast: ReturnType<typeof vi.fn>;
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applyTtsInnerAudioOptions: ReturnType<typeof vi.fn>;
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prefetchNextTtsQueueItem: ReturnType<typeof vi.fn>;
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};
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type MiniprogramGlobals = typeof globalThis & {
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Page?: (options: TerminalPageOptions) => void;
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wx?: Record<string, unknown>;
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};
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type AudioHandlerName = "canplay" | "play" | "ended" | "stop" | "error";
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function createAudioContextMock() {
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const handlers: Partial<Record<AudioHandlerName, (payload?: unknown) => void>> = {};
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const audioContext = {
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src: "",
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autoplay: false,
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obeyMuteSwitch: false,
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onCanplay(callback: (payload?: unknown) => void) {
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handlers.canplay = callback;
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},
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onPlay(callback: (payload?: unknown) => void) {
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handlers.play = callback;
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},
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onEnded(callback: (payload?: unknown) => void) {
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handlers.ended = callback;
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},
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onStop(callback: (payload?: unknown) => void) {
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handlers.stop = callback;
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},
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onError(callback: (payload?: unknown) => void) {
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handlers.error = callback;
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},
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play: vi.fn(),
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stop: vi.fn(() => {
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handlers.stop?.();
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}),
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destroy: vi.fn(),
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emit(name: AudioHandlerName, payload?: unknown) {
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handlers[name]?.(payload);
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}
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};
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return audioContext;
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}
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function flushMicrotasks(): Promise<void> {
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return Promise.resolve().then(() => undefined);
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}
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function createTerminalPageHarness() {
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const globalState = globalThis as MiniprogramGlobals;
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let capturedPageOptions: TerminalPageOptions | null = null;
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const audioContexts: ReturnType<typeof createAudioContextMock>[] = [];
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const noop = () => {};
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vi.resetModules();
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delete require.cache[require.resolve("./index.js")];
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globalState.Page = vi.fn((options: TerminalPageOptions) => {
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capturedPageOptions = options;
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});
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globalState.wx = {
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env: {
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USER_DATA_PATH: "/tmp"
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},
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getRecorderManager: vi.fn(() => ({
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onStart: noop,
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onStop: noop,
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onError: noop,
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onFrameRecorded: noop,
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start: noop,
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stop: noop
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})),
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createInnerAudioContext: vi.fn(() => {
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const audioContext = createAudioContextMock();
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audioContexts.push(audioContext);
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return audioContext;
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}),
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setInnerAudioOption: vi.fn(),
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createSelectorQuery: vi.fn(() => ({
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in: vi.fn(() => ({
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select: vi.fn(() => ({
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boundingClientRect: vi.fn(() => ({
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exec: noop
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}))
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}))
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}))
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})),
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nextTick: vi.fn((callback?: () => void) => {
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callback?.();
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}),
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getSystemInfoSync: vi.fn(() => ({})),
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canIUse: vi.fn(() => false)
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};
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require("./index.js");
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if (!capturedPageOptions) {
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throw new Error("terminal page not captured");
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}
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const captured = capturedPageOptions as TerminalPageOptions;
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const page = {
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...captured,
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data: JSON.parse(JSON.stringify(captured.data || {})) as Record<string, unknown>,
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setData(patch: Record<string, unknown>) {
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Object.assign(this.data, patch);
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}
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} as TerminalPageInstance;
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page.localizeTerminalMessage = vi.fn((message: string) => String(message || ""));
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page.showLocalizedToast = vi.fn();
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page.applyTtsInnerAudioOptions = vi.fn();
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page.prefetchNextTtsQueueItem = vi.fn();
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page.initTtsRuntime();
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page.setData({
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ttsEnabled: true,
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ttsState: "idle",
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ttsErrorMessage: ""
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});
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return {
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page,
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audioContexts
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};
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}
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describe("terminal ttsPlayback", () => {
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const globalState = globalThis as MiniprogramGlobals;
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const originalPage = globalState.Page;
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const originalWx = globalState.wx;
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beforeEach(() => {
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vi.useFakeTimers();
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});
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afterEach(() => {
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vi.runOnlyPendingTimers();
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vi.useRealTimers();
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vi.restoreAllMocks();
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vi.resetModules();
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if (originalPage) {
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globalState.Page = originalPage;
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} else {
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delete globalState.Page;
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}
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if (originalWx) {
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globalState.wx = originalWx;
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} else {
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delete globalState.wx;
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}
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});
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it("本地缓存播放失败时应自动回退到远端音频地址", async () => {
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const { page, audioContexts } = createTerminalPageHarness();
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const jobId = page.createTtsPlaybackJob(["第一段"]);
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const item = page.ttsRuntime.playQueue[0];
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item.ready = true;
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item.playbackUrl = "/tmp/tts-cache-cache-1.mp3";
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item.remoteAudioUrl = "https://gateway.example.com/api/miniprogram/tts/audio/cache-1?ticket=demo";
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page.prepareTtsQueueItem = vi.fn().mockResolvedValue(item);
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await page.playTtsQueueSegment(jobId, 0);
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const localAudioContext = audioContexts[0];
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expect(localAudioContext.src).toBe("/tmp/tts-cache-cache-1.mp3");
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expect(page.data.ttsState).toBe("preparing");
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localAudioContext.emit("error", { errCode: 10001 });
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const remoteAudioContext = audioContexts[1];
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expect(item.useRemotePlayback).toBe(true);
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expect(localAudioContext.stop).toHaveBeenCalledTimes(1);
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expect(localAudioContext.destroy).toHaveBeenCalledTimes(1);
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expect(remoteAudioContext.src).toBe(
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"https://gateway.example.com/api/miniprogram/tts/audio/cache-1?ticket=demo"
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);
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expect(page.data.ttsState).toBe("preparing");
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expect(page.showLocalizedToast).not.toHaveBeenCalled();
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/**
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* 旧播放器实例的迟到错误事件不应把已经切到远端地址的新实例拉回失败态。
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*/
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localAudioContext.emit("error", { errCode: 10001 });
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expect(page.data.ttsState).toBe("preparing");
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expect(page.showLocalizedToast).not.toHaveBeenCalled();
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remoteAudioContext.emit("play");
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expect(page.data.ttsState).toBe("playing");
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expect(page.data.ttsErrorMessage).toBe("");
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});
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it("旧播放器实例的迟到 stop/ended 事件不应打断下一段播放", async () => {
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const { page, audioContexts } = createTerminalPageHarness();
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const jobId = page.createTtsPlaybackJob(["第一段", "第二段", "第三段"]);
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page.ttsRuntime.playQueue.forEach((item: TtsQueueItem, index: number) => {
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item.ready = true;
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item.playbackUrl = `/tmp/seg-${index + 1}.mp3`;
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item.remoteAudioUrl = `https://gateway.example.com/seg-${index + 1}.mp3`;
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});
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page.prepareTtsQueueItem = vi.fn(
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async (_jobId: number, segmentIndex: number) => page.ttsRuntime.playQueue[segmentIndex]
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);
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await page.playTtsQueueSegment(jobId, 0);
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const firstAudioContext = audioContexts[0];
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firstAudioContext.emit("play");
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expect(page.ttsRuntime.playingSegmentIndex).toBe(0);
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expect(page.data.ttsState).toBe("playing");
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firstAudioContext.emit("ended");
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await flushMicrotasks();
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const secondAudioContext = audioContexts[1];
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expect(page.ttsRuntime.playingSegmentIndex).toBe(1);
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expect(page.ttsRuntime.playbackPhase).toBe("loading");
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expect(secondAudioContext.src).toBe("/tmp/seg-2.mp3");
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firstAudioContext.emit("stop");
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firstAudioContext.emit("ended");
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await flushMicrotasks();
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expect(page.data.ttsState).toBe("preparing");
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expect(page.ttsRuntime.playbackPhase).toBe("loading");
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expect(page.ttsRuntime.playingSegmentIndex).toBe(1);
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expect(secondAudioContext.src).toBe("/tmp/seg-2.mp3");
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expect(page.prepareTtsQueueItem).toHaveBeenCalledTimes(2);
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secondAudioContext.emit("play");
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expect(page.data.ttsState).toBe("playing");
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});
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});
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