// 文件预览 API 测试
const request = require('supertest');
const app = require('../../backend/src/index');

describe('Preview API', () => {
  let token;
  
  beforeAll(async () => {
    // Login first
    const loginRes = await request(app)
      .post('/api/auth/login')
      .send({ username: 'testuser', password: 'test123' });
    token = loginRes.body.token;
  });

  describe('GET /api/preview/:id', () => {
    it('should get preview info', async () => {
      const response = await request(app)
        .get('/api/preview/1')
        .set('Authorization', `Bearer ${token}`);
      
      expect(response.status).toBe(200);
      expect(response.body).toHaveProperty('fileId');
      expect(response.body).toHaveProperty('isPreviewable');
    });

    it('should reject invalid token', async () => {
      const response = await request(app)
        .get('/api/preview/1')
        .set('Authorization', 'Bearer invalid');
      
      expect(response.status).toBe(401);
    });
  });
});