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/*
* Copyright (c) 2016, 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.
*/
/**
* JDK-8137240: Negative lookahead in RegEx breaks backreference
*
* @test
* @run
*/
Assert.assertEquals('aa'.replace(/(a)(?!b)\1/gm, 'c'), 'c');
var result = 'aa'.match(/(a)(?!b)\1/);
Assert.assertTrue(result.length === 2);
Assert.assertTrue(result[0] === 'aa');
Assert.assertTrue(result[1] === 'a');
result = 'aa'.match(/(a)(?!(b))\2(a)/);
Assert.assertTrue(result.length === 4);
Assert.assertTrue(result[0] === 'aa');
Assert.assertTrue(result[1] === 'a');
Assert.assertTrue(result[2] === undefined);
Assert.assertTrue(result[3] === 'a');
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