testing-with-promises-snippet-2.js

it('should indicate that members are loading while waiting for results', function (done){
  var deferredMembers = $q.defer();
  var membersPromise = deferredMembers.promise;
  var assertMembersLoaded = function () {
    expect(membershipViewer.members).toEqual(['Alice', 'Bob']]);
    expect(membershipViewer.loadingMembers).toEqual(false);
    done();
  };
  membershipService.getMembers.and.returnValue(membersPromise);

  membershipViewer.showMembers('a-group-id');
  expect(membershipViewer.loadingMembers).toEqual(true);

  membersPromise.then(assertMembersLoaded);
  deferredMembers.resolve(['Alice', 'Bob']);
  $scope.$apply();
});