How to spy on anonymous function using Jasmine

Question

I\'m using Jasmine to test my angular application and want to spy on an anonymous function. Using angular-notify service https://github.com/cgross/angular-notify, I want to know

Answer 1

You could chain your spy with andCallFake see:

http://jasmine.github.io/1.3/introduction.html#section-Spies:_andCallFake

    //create a spy and define it to change notify
    notify = jasmine.createSpy().andCallFake(function() {
      return false;
    });

    it('should be a function', function() {
        expect(typeof notify).toBe('function');             
    });

    controller = createController();
    scope.isValid('name');
    expect(notify).toHaveBeenCalled();

Answer 2

Daniel Smink's answer is correct, but note that the syntax has changed for Jasmine 2.0.

notify = jasmine.createSpy().and.callFake(function() {
  return false;
});

I also found it useful to just directly return a response if you only need a simple implementation

notify = jasmine.createSpy().and.returnValue(false);