angular.js/docs/content/guide/dev_guide.services.testing_services.ngdoc

@workInProgress
@ngdoc overview
@name Developer Guide: Angular Services: Testing Angular Services
@description


Following is a unit test for the service in the example in {@link
dev_guide.services.registering_services Registering Angular Services}. The unit test example uses
Jasmine spy (mock) instead of a real browser alert.


<pre>
var mock, notify;


beforeEach(function() {
mock = {alert: jasmine.createSpy()};
notify = angular.service('notify')(mock);
});


it('should not alert first two notifications', function() {
notify('one');
notify('two');
expect(mock.alert).not.toHaveBeenCalled();
});


it('should alert all after third notification', function() {
notify('one');
notify('two');
notify('three');
expect(mock.alert).toHaveBeenCalledWith("one\ntwo\nthree");
});


it('should clear messages after alert', function() {
notify('one');
notify('two');
notify('third');
notify('more');
notify('two');
notify('third');
expect(mock.alert.callCount).toEqual(2);
expect(mock.alert.mostRecentCall.args).toEqual(["more\ntwo\nthird"]);
});
</pre>




## Related Topics


* {@link dev_guide.services.understanding_services Understanding Angular Services}
* {@link dev_guide.services.creating_services Creating Angular Services}
* {@link dev_guide.services.registering_services Registering Angular Services}
* {@link dev_guide.services.managing_dependencies Managing Service Dependencies}
* {@link dev_guide.services.injecting_controllers Injecting Services Into Conrollers}


## Related API


* {@link api/angular.service Angular Service API}