How can I test async functions in Angular using CLI?

How can I test async functions in Angular using CLI?

You can test async functions in Angular by using the async and await keywords in your test cases. This allows you to handle asynchronous operations more effectively.

Can you provide a code example for that?

Sure! Here's a simple example:

it('should fetch data asynchronously', async () => {
  const data = await service.getData();
  expect(data).toBeTruthy();
});

What if I need to mock an async service?

You can use Jasmine's spyOn to mock the service. For example:

spyOn(service, 'getData').and.returnValue(Promise.resolve(mockData));

Are there any specific Angular testing utilities I should use?

Yes, Angular provides utilities like TestBed for setting up your testing module, which is very helpful for testing components and services.