public void DisplayAboutDialogueCommandExpectsWindowManagerShowingIDialogueViewModel()
{
lock (syncroot)
{
CreateFullExportsAndVm();
_windowManager.Setup(w => w.ShowDialog(It.IsAny<IDialogueViewModel>(), null, null)).Verifiable();
_mainViewModel.DisplayAboutDialogueCommand.Execute(null);
_windowManager.Verify(w => w.ShowDialog(It.IsAny<IDialogueViewModel>(), null, null), Times.Once());
}
}