Is it possible to write a unit test in ANgular that directly sends real http calls instead of mocking them?

I've been working on a monolithic Angular app and diving into the world of unit testing. I'm particularly focused on testing some services, and I keep coming across recommendations to mock http calls such as get and post. However, I'm not sure why this is necessary and if there's an alternative way to test without mocking. I've heard about using spies, but the concept is still unclear to me... My main goal is simply to ensure that certain http calls return the expected values. What is the most comprehensive approach I can take to achieve this? If you could explain it in the simplest terms possible or share any useful links on this topic, I would greatly appreciate it. Thank you! :)

angulartypescriptunit-testingtesting

Answer №1

If you're looking to conduct tests without mocking the API, it's more of an integration test rather than a unit test.

For Cypress: To quickly verify that your http calls are returning the expected values, Cypress is a great tool. Check out this tutorial to get started: . Essentially, you use cy.request and then make assertions about the anticipated data.

Postman: Another useful option for your scenario could be Postman:

Jasmine: You can also perform real requests using Jasmine:

 beforeEach(() => {
    ...
    TestBed.configureTestingModule({
      imports: [
        HttpModule // <-- simply provide the actual HttpModule here
      ]
    });

  });

  it('should do real requests', async(inject([Http], (http) => {
    http.get('your url').subscribe(res => {
      expect(res.json()).toBe(...);
    });
  })));

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