menu.addItem( "/bbb", "aaa" );
Menu otherSubMenu = new Menu( "/ccc", "bbb" );
otherSubMenu.addItem( "111", "111" );
otherSubMenu.addItem( "222", "333" );
otherSubMenu.addItem( "333", "222" ).setOrder( 1 );
menu.addItem( otherSubMenu );
menu.sort();
assertMenu( menu, "aaa", "bbb", "ccc" );