List<EntryAttribute> removed = entry.put( oc, cn, sn, c );
assertEquals( 4, entry.size() );
assertEquals( 0, removed.size() );
assertTrue( entry.containsAttribute( "ObjectClass" ) );
assertTrue( entry.containsAttribute( "CN" ) );
assertTrue( entry.containsAttribute( " sn " ) );
assertTrue( entry.containsAttribute( " countryName " ) );
EntryAttribute attr = entry.get( "objectclass" );
assertEquals( 2, attr.size() );