test/script/maptests/proto.js

/*
 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 * @test
 * @option -Dnashorn.debug=true
 * @fork
 */

load(__DIR__ + "maputil.js");

// add/delete property to proto (direct/indirect) should
// not affect the property map of the objects

var proto2 = { foo: 334 }
var proto  = Object.create(proto2);
proto.bar = "hello";

var obj1 = Object.create(proto);
var obj2 = Object.create(proto);

assertSameMap(obj1, obj2);

proto.newX = 'world';
assertSameMap(obj1, obj2);

delete proto.newX;
assertSameMap(obj1, obj2);

proto2.newX = "foo";
assertSameMap(obj1, obj2);

delete proto2.newX;
assertSameMap(obj1, obj2);