public void GetManager_BehaviorIsLocatedInDifferentAncestorDisntances_ReturnsNearestManager()
{
var behavior = new UndoRootBehavior();
var grandparent1 = new ViewModelStub(new UndoRootBehavior());
var parent1 = new ViewModelStub();
parent1.Kernel.Parents.Add(grandparent1);
var parent2 = new ViewModelStub(behavior);
var expectedManager = behavior.GetUndoManager(parent2.GetContext());
var rootVM = new ViewModelStub();
rootVM.Kernel.Parents.Add(parent1);
rootVM.Kernel.Parents.Add(parent2);
var foundManager = UndoManager.GetManager(rootVM);
Assert.IsNotNull(foundManager);
Assert.AreSame(expectedManager, foundManager);
}