I am testing a controller that uses a service that returns a promise. I have mocked out a service in my tests and created a spy so that I can test if the service was actually called.

However I keep getting this error

TypeError: 'undefined' is not a function 
    (evaluating 'spyOn(mockService, 'one').andReturn(deferred.promise)')

My Test

beforeEach(inject(function($rootScope, $controller, $q) {
  scope = $rootScope.$new();

  mockService = {
    one: function(){
      // mock promise
      var deferred = $q.defer();
      deferred.resolve([
        //my array
      ]);
      return deferred.promise;
    },
    two: function(){
      // mock promise
      var deferred = $q.defer();
      deferred.resolve([
        //my data
      ]);
      return deferred.promise;
    }
  }
  var deferred = $q.defer();
  spyOn(mockService, 'one').andReturn(deferred.promise);

  controller = $controller('MyCtrl', {
    $scope: scope,
    mockService: mockService
  });
}));

it('should call mockService service', function(){
  //causes promises to check to see if they are fulfilled
  scope.$digest();
  expect(mockService.one).toHaveBeenCalled();
});

I am testing a controller that uses a service that returns a promise. I have mocked out a service in my tests and created a spy so that I can test if the service was actually called.

However I keep getting this error

TypeError: 'undefined' is not a function 
    (evaluating 'spyOn(mockService, 'one').andReturn(deferred.promise)')

My Test

beforeEach(inject(function($rootScope, $controller, $q) {
  scope = $rootScope.$new();

  mockService = {
    one: function(){
      // mock promise
      var deferred = $q.defer();
      deferred.resolve([
        //my array
      ]);
      return deferred.promise;
    },
    two: function(){
      // mock promise
      var deferred = $q.defer();
      deferred.resolve([
        //my data
      ]);
      return deferred.promise;
    }
  }
  var deferred = $q.defer();
  spyOn(mockService, 'one').andReturn(deferred.promise);

  controller = $controller('MyCtrl', {
    $scope: scope,
    mockService: mockService
  });
}));

it('should call mockService service', function(){
  //causes promises to check to see if they are fulfilled
  scope.$digest();
  expect(mockService.one).toHaveBeenCalled();
});

• javascript
• angularjs
• unit-testing
• karma-jasmine

• which version of jasmine are you using? – ericbn Commented Jan 8, 2016 at 16:11
• correction: version 2.4.1 of jasmine – tester123 Commented Jan 8, 2016 at 16:45

1 Answer 1

For Jasmine 2 you must use

spyOn(mockService, 'one').and.returnValue(deferred.promise);

instead of andReturn().

Read the docs. If you're migrating from Jasmine 1 to Jasmine 2, you also might want to read this.