public void Move_InvokesAction()
{
var grid = new UniversalGrid <string>(3, 3);
var thing1 = "A".AsSpatialObject(1, 1);
bool actionInvoked = false;
grid.AddAction((x, m) => m.Any(p => p.Y > 1), (g, x) => {
actionInvoked = true;
}); // Add a rule which prevents Y from exceeding 2
grid.SetObject(thing1);
thing1.Move(Direction.Right); // 2, 1
Assert.That(actionInvoked, Is.False);
thing1.Move(Direction.Down); // 2, 2
Assert.That(actionInvoked, Is.True);
}