# Instructions

- Following Playwright test failed.
- Explain why, be concise, respect Playwright best practices.
- Provide a snippet of code with the fix, if possible.

# Test info

- Name: regression\02-tts.spec.ts >> TTS语音合成 (TTS) >> T03: 生成音频任务 POST /api/tts/generate
- Location: regression\02-tts.spec.ts:33:7

# Error details

```
Error: expect(received).toBe(expected) // Object.is equality

Expected: 0
Received: 500
```

# Test source

```ts
  1  | /**
  2  |  * L2 回归测试：TTS语音合成
  3  |  * 覆盖：音色列表、提供商列表、音频生成、状态查询、预览、下载
  4  |  */
  5  | import { test, expect } from '@playwright/test';
  6  | import { apiGet, apiPost, initApiClient, disposeApiClient } from '../helpers/api-client';
  7  | import { trackResource } from '../helpers/test-data';
  8  | 
  9  | let testAudioId: string;
  10 | 
  11 | test.describe('TTS语音合成 (TTS)', () => {
  12 |   test.beforeAll(async () => {
  13 |     await initApiClient();
  14 |   });
  15 | 
  16 |   test.afterAll(async () => {
  17 |     await disposeApiClient();
  18 |   });
  19 | 
  20 |   test('T01: 获取音色列表 GET /api/tts/voices', async () => {
  21 |     const res = await apiGet('/api/tts/voices');
  22 |     expect(res.code).toBe(0);
  23 |     expect(res.data?.voices).toBeDefined();
  24 |     expect(Array.isArray(res.data.voices)).toBe(true);
  25 |   });
  26 | 
  27 |   test('T02: 获取提供商列表 GET /api/tts/providers', async () => {
  28 |     const res = await apiGet('/api/tts/providers');
  29 |     expect(res.code).toBe(0);
  30 |     expect(res.data?.providers).toBeDefined();
  31 |   });
  32 | 
  33 |   test('T03: 生成音频任务 POST /api/tts/generate', async () => {
  34 |     const res = await apiPost('/api/tts/generate', {
  35 |       text: '这是一段自动化测试文本，用于验证TTS音频生成功能。',
  36 |       voiceId: 'Cherry',
  37 |       voiceParams: { speed: 1.0, pitch: 0, volume: 50 },
  38 |     });
  39 |     // 异步任务应该返回 0
> 40 |     expect(res.code).toBe(0);
     |                      ^ Error: expect(received).toBe(expected) // Object.is equality
  41 |     testAudioId = res.data?.audioId;
  42 |     expect(testAudioId).toBeDefined();
  43 |   });
  44 | 
  45 |   test('T04: 查询音频状态 GET /api/tts/status/:audioId', async () => {
  46 |     if (!testAudioId) return test.skip();
  47 |     const res = await apiGet(`/api/tts/status/${testAudioId}`);
  48 |     expect([0, 404]).toContain(res.code);
  49 |   });
  50 | 
  51 |   test('T05: 获取下载信息 GET /api/tts/download/:audioId', async () => {
  52 |     // 使用一个可能存在的音频ID测试路由可达性
  53 |     const res = await apiGet('/api/tts/download/1');
  54 |     expect([0, 404, 500]).toContain(res.code);
  55 |   });
  56 | });
  57 | 
```