public void AddSubTask_EmptyTitle_MustShowAValidationError()
{
//Arrange
int taskIndex = TasksPage.GetFirstNotCompletedTaskIndex();
TaskMenuOptionsDialog.ShowMainDialog(taskIndex).ShowAddSubTaskDialog();
//Act
bool isInvalid = TaskMenuOptionsDialog.IsSubTaskTitleValid(string.Empty);
//Assert
Assert.True(isInvalid);
}
