public void CreateAuthorizationWindow_CreateAuthorizationWindow_Correc() { var window = A.Fake <AuthorizationWindow>(); A.CallTo(() => _windowFactory.Create <AuthorizationWindow>()).Returns(window); A.CallTo(() => window.ShowDialogWindow()).Returns(false); _windowService.CreateAuthorizationWindow(); A.CallTo(() => window.ShowDialogWindow()).MustHaveHappened(); }