Testing Service Promise with Jasmine

[César Barone]

Hi,

I am trying to test a method that returns a promise.  But i think promise is resolved after test finish. 

http://plnkr.co/edit/xgZTGaZdOeXGG9b7fTWd?p=preview

Can anyone help me?

[César Barone]

nobody?

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[Sander Elias]

Hi César,

You need to call $digest before your promise will be resolved. Angular promises are async, so if you don't do a digest in between, your .then in the test will not be ran before your expect.

try:

describe('Testing promise', function() {
  var $scope = null;
  var myService = null;
  var cachedInstance = {
    name: 'John'
  }
  var rootScope = {}
  //you need to indicate your module in a test
  beforeEach(module('plunker'));


  beforeEach(inject(function(_myService_,$rootScope) {
    myService = _myService_;
    myService.cachedInstance = cachedInstance;
    $scope = $rootScope
  }));


  it('should return cached instance', function() {
    var resolvedInstance = {}
    myService.get().then(function(instance){
      resolvedInstance = instance;
    });
    $scope.$digest()
    expect(resolvedInstance).toBe(cachedInstance);
  });
});

Regards

Sander