How do I test services in Angular using Angular CLI?

How do I test services in Angular using Angular CLI?

To test services in Angular, you can use the Angular CLI to generate a service and its corresponding test file. You can run ng generate service my-service to create a service, and it will automatically create a .spec.ts file for testing.

What testing framework does Angular use by default?

Angular uses Jasmine as the default testing framework, along with Karma as the test runner.

Can you show me an example of a simple service test?

Sure! Here's a basic example:

import { TestBed } from '@angular/core/testing';
import { MyService } from './my-service.service';

describe('MyService', () => {
  let service: MyService;

  beforeEach(() => {
    TestBed.configureTestingModule({});
    service = TestBed.inject(MyService);
  });

  it('should be created', () => {
    expect(service).toBeTruthy();
  });
});

How do I run the tests after writing them?

You can run your tests by executing the command ng test in your terminal. This will start the Karma test runner and execute all your tests.