hi

✅ What This Example is Doing
1. It's mocking window.Bootstrapper._trackAnalytics:
ts
Copy
Edit
window.Bootstrapper = {
  // @ts-ignore eslint
  _trackAnalytics: jest.fn()
};
This fakes the real analytics function so Jest doesn’t explode.

2. Then it tests if your function actually called it:
ts
Copy
Edit
expect(window.Bootstrapper._trackAnalytics).toHaveBeenCalled();
Boom. ✅ Tracked and tested.

⚙️ SET UP TRACKANALYTICS TESTING — FOR YOUR CODE
Let’s say inside your component you got something like this:

ts
Copy
Edit
goToIntroPage(): void {
  window.Bootstrapper._trackAnalytics({ event: 'GO_TO_INTRO' });
  this.router.navigate(['/intro']);
}
🧪 TEST: goToIntroPage() calls trackAnalytics
Here’s your Jest test you can drop in:

ts
Copy
Edit
describe('goToIntroPage', () => {
  beforeEach(() => {
    // ✅ mock analytics before every test
    window.Bootstrapper = {
      _trackAnalytics: jest.fn()
    };
  });

  it('should call trackAnalytics when navigating to intro page', () => {
    component.goToIntroPage();

    expect(window.Bootstrapper._trackAnalytics).toHaveBeenCalledWith({
      event: 'GO_TO_INTRO'
    });

    // Optional: if you want to test navigation too
    expect(window.location.href).toContain('/intro'); // or use router spy
  });
});
🧪 TEST: ngOnInit() calls trackAnalytics (if used there too)
ts
Copy
Edit
describe('ngOnInit', () => {
  beforeEach(() => {
    window.Bootstrapper = {
      _trackAnalytics: jest.fn()
    };
  });

  it('should track analytics on init', () => {
    component.ngOnInit();

    expect(window.Bootstrapper._trackAnalytics).toHaveBeenCalledWith({
      event: 'PAGE_LOAD'
    });
  });
});
🛠️ If You’re Using trackAnalytics() Imported Directly
If your method doesn’t go through window.Bootstrapper, but instead directly calls:

ts
Copy
Edit
import { trackAnalytics } from '@app/services/common/track-analytics/analytics';

trackAnalytics({ event: 'GO_TO_INTRO' });
Then replace the mock like this:

ts
Copy
Edit
jest.mock('@app/services/common/track-analytics/analytics', () => ({
  trackAnalytics: jest.fn()
}));

import { trackAnalytics } from '@app/services/common/track-analytics/analytics';
Then just test it like:

ts
Copy
Edit
expect(trackAnalytics).toHaveBeenCalledWith({ event: 'GO_TO_INTRO' });
💡 Philosopher’s Final Take (Ryan Holiday Style):
“Don't be flashy with your code — be effective. When something breaks, it’s not a failure. It’s a signal. Track it. Test it. Own it.”

Now go finish that test suite strong, bro 💪
Want me to help write a real test from your actual method? Paste the method and I’ll whip