assertEquals( 2, subItem2.getLevel() );
assertEquals( 3, subSubItem1.getLevel() );
assertEquals( 3, subSubItem2.getLevel() );
Menu newRoot = new Menu();
newRoot.addItem( menu );
assertEquals( Menu.ROOT_LEVEL, newRoot.getLevel() );
assertEquals( 1, menu.getLevel() );
assertEquals( 2, item1.getLevel() );
assertEquals( 2, item2.getLevel() );
assertEquals( 3, subItem1.getLevel() );