I am going through some articles on unit testing and have found some pretty helpful examples. Most examples I am running across seem to be unit testing a function that does something with the Angular HttpClient and most look like this:
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); }); https://medium.com/netscape/testing-with-the-angular-httpclient-api-648203820712
This means that .getUsers() returns an observable. However, in my application, I am not returning an observable. Almost all of my HttpClient calls are similar to this:
async getCurrentUser(): Promise<UserInfo> { return await this._httpClient.get(`/api/me`).toPromise(); } How do you go about unit testing the function calling the HttpPost or HttpGet within Karma?
Attempt:
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'); }); 