# 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\04-favorites.spec.ts >> 收藏功能 (Favorites) >> F02: 添加收藏 POST /api/favorites
- Location: regression\04-favorites.spec.ts:16:7

# Error details

```
Error: expect(received).toContain(expected) // indexOf

Expected value: 500
Received array: [0, 400, 401]
```

# Test source

```ts
  1  | /**
  2  |  * L2 回归测试：收藏功能
  3  |  */
  4  | import { test, expect } from '@playwright/test';
  5  | import { apiGet, apiPost, apiDelete, initApiClient, disposeApiClient } from '../helpers/api-client';
  6  | 
  7  | test.describe('收藏功能 (Favorites)', () => {
  8  |   test.beforeAll(async () => { await initApiClient(); });
  9  |   test.afterAll(async () => { await disposeApiClient(); });
  10 | 
  11 |   test('F01: 获取收藏列表 GET /api/favorites', async () => {
  12 |     const res = await apiGet('/api/favorites');
  13 |     expect(res.code).toBe(0);
  14 |   });
  15 | 
  16 |   test('F02: 添加收藏 POST /api/favorites', async () => {
  17 |     const res = await apiPost('/api/favorites', { audioId: '1' });
  18 |     // 可能成功(0)、重复(400)或需要认证(401)
> 19 |     expect([0, 400, 401]).toContain(res.code);
     |                           ^ Error: expect(received).toContain(expected) // indexOf
  20 |   });
  21 | 
  22 |   test('F03: 取消收藏 DELETE /api/favorites/:id', async () => {
  23 |     const res = await apiDelete('/api/favorites/99999');
  24 |     // 可能成功(0)、未找到(404)或需要认证(401)
  25 |     expect([0, 401, 404]).toContain(res.code);
  26 |   });
  27 | });
  28 | 
```