public void DisplayAboutDialogueCommandExpectsWindowManagerShowingIDialogueViewModel()
{
CreateFullExportsAndVm();
WindowManager.Setup(w => w.ShowDialog(It.IsAny<IDialogueViewModel>(), null, null)).Verifiable();
CustomContainer.Register(new DialogViewModelFactory() as IDialogViewModelFactory);
MainViewModel.DisplayAboutDialogueCommand.Execute(null);
WindowManager.Verify(w => w.ShowDialog(It.IsAny<IDialogueViewModel>(), null, null), Times.Once());
}