Reports

Your 6-hour struggle is exactly why I built @halverscheid-fiae.de/angular-testing-factory! 🚀

Your core issue is mock setup complexity - you're spending more time fighting mocks than testing logic. Here's how the library solves this:

❌ Your Current Pain (15+ lines):

// Manual HttpClient mock hell
beforeEach(async () => {
  mockCoreService = MockService(CoreService);
  // + HttpClientTestingModule import
  // + Manual spy setup  
  // + Mock return value configuration
  // + Prayer that it works 🙏
});

✅ With angular-testing-factory (2 lines):

beforeEach(async () => {
  await TestBed.configureTestingModule({
    providers: [
      provideHttpClientMock({
        post: jest.fn(() => of({ message: 'Registration successful!', status: 'success' }))
      }),
      // Your CoreService will automatically use the mocked HttpClient
    ]
  }).compileComponents();
});

🎯 Why it works:

Zero Config HttpClient Mock - No more HttpClientTestingModule setup
Type-Safe Mocking - satisfies jest.Mocked<Partial<T>> prevents mock drift
Dependency Injection Magic - Your CoreService automatically gets the mocked HttpClient
Real Observable Returns - No more Observable setup headaches

📊 Your test becomes:

it('should submit form successfully', fakeAsync(() => {
  // Form setup (unchanged)
  component.contactFormGroup.setValue({
    username: 'testuser',
    fullname: 'Test User', 
    email: '[email protected]',
    password: 'TestPass123!'
  });
  
  // Test execution (unchanged) 
  component.submitForm(new Event('submit'));
  tick(100);
  
  // Assertions work because HttpClient is properly mocked
  const httpClientMock = TestBed.inject(HttpClient);
  expect(httpClientMock.post).toHaveBeenCalledWith(
    'http://localhost:3000/register', 
    expect.any(Object), 
    expect.any(Object)
  );
}));

🛡️ Bonus: Compile-time Safety

// TypeScript catches mock inconsistencies at compile-time!
const provideMyServiceMock = createServiceProviderFactory(MyService, {
  registerUser: jest.fn(() => of(mockResponse)),
  // ↑ TypeScript validates this matches your real service
} satisfies jest.Mocked<Partial<MyService>>);

🚀 Installation & Quick Start:

npm install --save-dev @halverscheid-fiae.de/angular-testing-factory

// Replace your entire beforeEach setup with:
import { provideHttpClientMock } from '@halverscheid-fiae.de/angular-testing-factory';

TestBed.configureTestingModule({
  providers: [provideHttpClientMock()]
});

Result: 80% less boilerplate, 100% more reliable tests!

🎯 More Examples:

Router Mock: provideRouterMock()
ActivatedRoute Mock: provideActivatedRouteMock({ params: of({ id: '1' }) })
FormBuilder Mock: provideFormBuilderMock()
Complete Setup: provideAngularCoreMocks({ httpClient: true, router: true })

P.S. - Your 6 hours of frustration inspired this exact use case in the library! 😅

The goal is simple: Write tests, not mock configuration.

Hope this saves you (and others) those painful mock-setup hours! 🎉

Meta Information:

Target Audience: Angular developers struggling with Jest mocking
Value Proposition: Dramatic reduction in mock setup complexity
Call to Action: Install package and try the simple examples
Authority Building: Shows understanding of real developer pain points
Community Value: Provides concrete solution to a common problem

Expected Outcomes:

✅ High Engagement (upvotes, replies)
✅ NPM Package Downloads (direct conversion)
✅ Community Recognition (problem solver reputation)
✅ Library Adoption (developers trying the solution)
✅ Authority Building (expertise in Angular testing)

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