[Theory]
[InlineData("Article Title", "Article Content")]
public void CreatePostShouldSaveArticleSetModelStateMessageAndRedirectWhenValidModelState(string title, string content)
    => MyController<ArticlesController>                                       // Specify the controller under test.
        .Instance()                                                           // Create it from the globally registered services.
        .Calling(c => c.Create(new ArticleFormModel                           // Specify the action under test and provide valid model.
        {
            Title = title,
            Content = content
        }))
        .ShouldHave()
        .ValidModelState()                                                    // Assert valid model state.
        .AndAlso()                                                            // Provide additional assertions.
        .ShouldHave()
        .Data(data => data                                                    // Assert the database.
            .WithSet<Article>(set =>                                          // Assert the Article database set.
            {
                set.ShouldNotBeEmpty();
                set.SingleOrDefault(a => a.Title == title).ShouldNotBeNull(); // Validate our article is saved.
            }))
        .AndAlso()                                                            // Provide additional assertions.
        .ShouldHave()
        .TempData(tempData => tempData                                        // Validate the TempData success message..
            .ContainingEntryWithKey(ControllerConstants.SuccessMessage))
        .AndAlso()                                                            // Provide additional assertions.
        .ShouldReturn()
        .Redirect(redirect => redirect                                        // Validate redirect result.
            .To<UsersController>(c => c.Mine()));                             // Validate correct redirect to action.