Javascript 在jest内调用时返回undefined的函数，以便调用

我有一个简单的测试，将检查我们的内部

记录器

功能的输出，并确保它使用正确的参数/输出运行

问题是，在调用

logger

的

responseInterceptorResponse

函数中，我有另一个正在运行的函数：

getSourceURL

当在这些测试中使用时，此函数返回

未定义的

。我不知道为什么

我想它解决了我在模拟

/utils/logger

函数这一事实。所以没有什么

getSourceURL

是什么的上下文，也没有什么将任何信息传递给它的上下文

测验 getSourceURL 应答器应答器应答器 测试输出：

import { logger } from '@server/utils/logger';
import { responseInterceptorResponse, requestInterceptor } from './interceptors';

jest.mock('axios');
jest.mock('@server/utils/logger');

  describe('responseInterceptorResponse', () => {
    it('Should log if it is on the server', () =>
    const req = {
      headers: {
        host: 'localhost:3000',
        referer: 'https://localhost:3000/',
      },
      reqPath: '/women',
    };

    responseInterceptorResponse({}, {}, req);
    expect(logger).toHaveBeenCalledWith(
      'Request Response - Time: NaNms -  Status:   - Response: {}, source url: https://localhost:3000/women',
      'I',
      'standard',
      );
    });
 });

const getSourceURL = (req, path = '') => {
  const protocol = getProtocol(req);
  const urlPath = path === '' && (req && typeof req?.reqPath !== "undefined") ? req?.reqPath : path
  if(!protocol) return ', missing source url'
  return `, source url: ${protocol}://${req.headers.host}${urlPath}`
}


module.exports = {
  logger,
  logAccess,
  getSourceURL,
};

export const responseInterceptorResponse = (response, res, req) => {
  if (typeof window === 'undefined') {
    const endTime = Date.now();
    const duration = endTime - response?.config?.startTime;
    const status = response?.status || '';
    const url = response?.config?.url || '';
    const data = response?.data?.data || response?.data || {};
    const sourceURL = getSourceURL(req); //returning undefined...

    logger(
      `Request Response - Time: ${duration}ms -  Status: ${status} ${url} - Response: ${JSON.stringify(
        data,
      )}${sourceURL}`,
      'I',
      'standard',
    );
  }
  return response;
};

Error: expect(jest.fn()).toHaveBeenCalledWith(...expected)

Expected: "Request Response - Time: NaNms -  Status:   - Response: {}, source url: https://localhost:3000/women", "I", "standard"
Received: "Request Response - Time: NaNms -  Status:   - Response: {}undefined", "I", "standard"

Number of calls: 1