assertEquals( 3, list.size() );
assertEquals( 2, list.get( 0 ) );
assertEquals( 5, list.get( 1 ) );
assertEquals( 6, list.get( 2 ) );
list.clear();
assertTrue( wrapped_list.isEmpty() );
wrapped_list.add( Integer.valueOf( 7 ) );
assertEquals( 1, list.size() );
assertEquals( 7, list.get( 0 ) );