Javascript 单元测试HttpClient-角度/卡玛

我正在阅读一些关于单元测试的文章，并找到了一些非常有用的例子。我遇到的大多数示例似乎都是对一个函数进行单元测试，该函数使用Angular

HttpClient

执行某些操作，大多数示例如下所示：

it('should return an Observable<User[]>', () => {
    const dummyUsers = [
      { login: 'John' },
      { login: 'Doe' }
    ];

    service.getUsers().subscribe(users => {
      expect(users.length).toBe(2);
      expect(users).toEqual(dummyUsers);
    });

    const req = httpMock.expectOne(`${service.API_URL}/users`);
    expect(req.request.method).toBe("GET");
    req.flush(dummyUsers);
  });

如何在Karma中对调用HttpPost或HttpGet的函数进行单元测试

尝试：

  it('should get current user', async () => {
    const result = service.getCurrentUser();
    console.log('RESULT', result);
    const req = httpMock.expectOne(`/api/me`);
    const test = req.flush({test: 'ing'});
    console.log('REQUEST', test);

    expect('a').toEqual('a');
  });

---

我想我是想得太多了，但是我通过使用

使它工作起来。然后

而不是像在正常（非测试）调用中那样使用

等待

：

  it('should get current user', async () => {
    const result = service.getCurrentUser();
    console.log('RESULT', result);
    const req = httpMock.expectOne(`/api/me`);
    const test = req.flush({test: 'ing'});
    console.log('REQUEST', test);

    expect('a').toEqual('a');
  });

it('should get current user', async () => {
    const response = new CustomResponseClass();
    response.success = true;
    response.error = null;
    const user = new User();
    user.userId = 1;
    user.name = 'Test User';
    response.data = user;
    service.getCurrentUser().then( _user => {
      console.log('USER', _user);
      // TODO: Some more unit tests here...
    });
    const req = httpMock.expectOne('/api/me');
    expect(req.request.method).toEqual('GET');
    req.flush(response);
  });