How do I test observables in Angular?

How do I test observables in Angular?

To test observables in Angular, you can use the TestBed to create a testing module and inject your service.

Can you show me a code example?

Sure! Here's a simple example using Jasmine:

it('should return expected data', () => {
  const expectedData = [1, 2, 3];
  service.getData().subscribe(data => {
    expect(data).toEqual(expectedData);
  });
});

What about testing error scenarios?

For error scenarios, you can use the throwError function from RxJS to simulate an error response.

Thanks! Any tips for testing async operations?

Yes! Use the fakeAsync and tick functions to handle asynchronous operations in your tests.