public void testUnregisterOnlyAffectsChild()
throws Exception{
final Container parent = new DefaultContainer();
final Container child = new DefaultContainer();
final Container cc = child.inherit(parent);
cc.registerConstructor(HashMap.class, (Class[])null);
assertNull(parent.getComponent(HashMap.class));
cc.verify();
parent.registerValue(new Character('a'));
assertTrue(cc.getComponent(Character.class)!=null);