[angularjs] How to test a promise in AngularJS

promise.js

//given
spyOn(YourService, 'yourMethod').and.callFake(function () {
  var mockDeferred = $q.defer();
  mockDeferred.resolve();
  return mockDeferred.promise;
});

//when
serviceOrScope.method();

//and
$rootScope.$digest();

//then
//assert your result