Encountering the error message "Subscribe is not a function in Jasmine" while

Question

Encountering the error message "Subscribe is not a function in Jasmine" while

Encountering an issue where I am receiving an error stating "subscribe is not a function" in Angular unit testing.

Here is the call that I have implemented in my component:

this.myService.employees.subscribe(emp => this.emp = emp);

Despite creating a mock service to test the above code, I continue to encounter errors.

Would appreciate any suggestions on how to properly test the observable mentioned above.

I am looking to send mock data when

this.myService.employees.subscribe(emp => this.emp = emp);

subscribes from the component.

Employees represents a BehaviorSubject observable.

angular unit-testing jasmine karma-jasmine

Answer 1

Answer №1

Is there a way you can provide the code snippet that shows how to set up the service in the test?

Typically, you would want to follow a process similar to this:

It is highly recommended to utilize a testing library like ng-mocks

beforeEach(() => MockBuilder(MyComponent, MyService));

it('test', () => {
  const employees$ = new Subject();
  MockInstance(MyService, 'employees', employees$);

  const fixture = MockRender(MyComponent);
  employees$.next([]);
  // some assertions.
});

Answer 2

Is there a way you can provide the code snippet that shows how to set up the service in the test?

Typically, you would want to follow a process similar to this:

It is highly recommended to utilize a testing library like ng-mocks

beforeEach(() => MockBuilder(MyComponent, MyService));

it('test', () => {
  const employees$ = new Subject();
  MockInstance(MyService, 'employees', employees$);

  const fixture = MockRender(MyComponent);
  employees$.next([]);
  // some assertions.
});

Encountering the error message "Subscribe is not a function in Jasmine" while

Answer №1

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