Very simple mock function for the $translate service ( Angular js ) for Unit test with Jasmine / Karma

gistfile1.js

$translate Mock :

 $translate=function (translation) {
    return {
      then: function (callback) {
        var translated={};
        translation.map(function (transl) {
          translated[transl]=transl;
        });
        return callback(translated);
      }
    }
  };
 
 
Usage :
 
 Test:
 
controller=$controller('LoginCtrl', {
     '$scope': scope,
     '$state': stateMock,
     '$ionicPopup': ionicPopupMock,
     '$translate': $translate,
     '$ionicLoading': $ionicLoading,
   }
 );

...

it('should not login with wrong credentials ', function () {
  rscope.AAuser.email='damien@gymbirds.com';
  spyOn(scope, "showInvalidCredential").and.callThrough();

  scope.login();

  expect(scope.showInvalidCredential).toHaveBeenCalled();
  expect(ionicPopupMock.alert).toHaveBeenCalledWith({
    title: 'INVALID_CREDENTIALS',
    template: 'TRY_AGAIN'
  });
});

Angular Controller :


 $scope.showInvalidCredential=function () {
   $translate(['INVALID_CREDENTIALS', 'TRY_AGAIN']).then(function (translations) {
     $ionicPopup.alert({
       title: translations.INVALID_CREDENTIALS,
       template: translations.TRY_AGAIN
     });
   });
 };