public void CallToggleLikeMethod_WhenParamsAreValid()
        {
            // Arrange
            var storyServiceMock   = new Mock <IStoryService>();
            var mappingServiceMock = new Mock <IMappingService>();
            var userServiceMock    = new Mock <IUserService>();
            var utilsMock          = new Mock <IUtilitiesService>();

            var controller = new StoriesController(storyServiceMock.Object, mappingServiceMock.Object, userServiceMock.Object, utilsMock.Object);

            var controllerContext = new Mock <ControllerContext>();
            var user = new Mock <IPrincipal>();

            user.Setup(p => p.IsInRole("admin")).Returns(true);
            user.SetupGet(x => x.Identity.Name).Returns("username");
            controllerContext.SetupGet(x => x.HttpContext.User).Returns(user.Object);
            controller.ControllerContext = controllerContext.Object;

            storyServiceMock.Setup(x => x.ToggleLike(It.IsAny <Guid>(), It.IsAny <string>()));
            var story = new Story();

            storyServiceMock.Setup(x => x.GetById(It.IsAny <Guid>())).Returns(story);
            var model = new StoryDetailsViewModel();

            mappingServiceMock.Setup(x => x.Map <StoryDetailsViewModel>(story)).Returns(model);

            // Act
            controller.UnlikeStory(Guid.NewGuid());

            // Assert
            storyServiceMock.Verify(x => x.ToggleLike(It.IsAny <Guid>(), It.IsAny <string>()), Times.Once);
        }