public void BindToPropertyChange_Propagated()
{
bool wasCalled = false;
var not = new DummyNotifier();
var cmd = new DelegateCommand((p) => { }, (p) => p != null);
cmd.BindCanExecuteToProperty(not, "Number");
cmd.CanExecuteChanged += (s, e) => wasCalled = true;
not.Number = 123;
Assert.IsTrue(wasCalled);
}