public void ForwardsICommandCanExecuteChangedEventToReferencedGtkButtonFieldIsSensitiveProperty(bool canExecute)
{
var returnFirst = !canExecute;
var returnLast = canExecute;
var button = new Mock <IButton>();
var command = new Mock <ICommand>();
command.Setup(x => x.CanExecute(It.IsAny <object>())).Returns(returnFirst);
var viewModel = new Mock <TestData.ViewModel.WithCommandProperty>();
viewModel.Setup(x => x.CommandProperty).Returns(command.Object);
var obj = new BindButtonToCommand(button.Object);
obj.Bind(viewModel.Object, nameof(viewModel.Object.CommandProperty));
//Setup again, to return a different value, if event is raised
command.Setup(x => x.CanExecute(It.IsAny <object>())).Returns(returnLast);
command.Raise(x => x.CanExecuteChanged += null, EventArgs.Empty);
command.Verify(x => x.CanExecute(It.IsAny <object>()), Times.AtLeastOnce);
button.VerifySet(x => x.Sensitive = returnLast, Times.Once);
}
public void BindThrowsBindingExceptionIfAttributeDoesNotReferenceICommandInViewModel()
{
var viewModel = new Mock <TestData.ViewModel.WithCommandProperty>();
viewModel.Setup(x => x.ObjectProperty).Returns(new object());
var obj = new BindButtonToCommand(Mock.Of <IButton>());
Assert.ThrowsException <BindingException>(() => obj.Bind(viewModel.Object, nameof(TestData.ViewModel.WithCommandProperty.ObjectProperty)));
}
