temp-client.test.ts•2.1 kB
import axios from 'axios';
import * as config from '../utils/config';
import TMDbClient from '../services/tmdbClient';
// 模拟axios和config模块
jest.mock('axios');
jest.mock('../utils/config', () => ({
validateApiKey: jest.fn().mockReturnValue('test-api-key')
}));
describe('TMDbClient Lazy Loading Test', () => {
let client: TMDbClient;
let mockAxiosGet: jest.Mock;
let axiosCreateSpy: jest.SpyInstance;
beforeEach(() => {
// 清除所有模拟
jest.clearAllMocks();
// 创建模拟的axios get方法
mockAxiosGet = jest.fn();
// 监视axios.create并返回带有get方法的模拟
axiosCreateSpy = jest.spyOn(axios, 'create').mockReturnValue({
get: mockAxiosGet
} as any);
// 创建客户端实例
client = new TMDbClient();
});
it('初始化时不应该调用validateApiKey或创建axios实例', () => {
// 验证构造函数时不调用validateApiKey和axios.create
expect(config.validateApiKey).not.toHaveBeenCalled();
expect(axiosCreateSpy).not.toHaveBeenCalled();
});
it('调用方法时应该懒加载客户端', async () => {
// 模拟成功响应
mockAxiosGet.mockResolvedValueOnce({ status: 200 });
// 调用方法，触发懒加载
await client.testConnection();
// 验证validateApiKey和axios.create被调用
expect(config.validateApiKey).toHaveBeenCalledTimes(1);
expect(axiosCreateSpy).toHaveBeenCalledTimes(1);
expect(axiosCreateSpy).toHaveBeenCalledWith({
baseURL: 'https://api.themoviedb.org/3',
params: {
api_key: 'test-api-key',
language: 'zh-CN'
}
});
});
it('多次调用方法应该只初始化一次客户端', async () => {
// 模拟成功响应
mockAxiosGet.mockResolvedValue({ status: 200 });
// 调用方法两次
await client.testConnection();
await client.testConnection();
// 验证validateApiKey和axios.create只被调用一次
expect(config.validateApiKey).toHaveBeenCalledTimes(1);
expect(axiosCreateSpy).toHaveBeenCalledTimes(1);
});
});