// Object can not be pasted (not list of memento at all)
assertFalse(policy.validatePaste(new Object()));
// GWT Button can not be pasted (even if it has memento)
{
WidgetInfo button = container.getWidgets().get(1);
JavaInfoMemento memento = JavaInfoMemento.createMemento(button);
List<JavaInfoMemento> mementos = ImmutableList.of(memento);
assertFalse(policy.validatePaste(mementos));
}
}