jdk8-mips64-public/nashorn: test/script/basic/JDK-8137240.js@1df40fe54cd6

     1 /*

     2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /**

    25  * JDK-8137240: Negative lookahead in RegEx breaks backreference

    26  *

    27  * @test

    28  * @run

    29  */

    32 Assert.assertEquals('aa'.replace(/(a)(?!b)\1/gm, 'c'), 'c');

    34 var result = 'aa'.match(/(a)(?!b)\1/);

    35 Assert.assertTrue(result.length === 2);

    36 Assert.assertTrue(result[0] === 'aa');

    37 Assert.assertTrue(result[1] === 'a');

    39 result = 'aa'.match(/(a)(?!(b))\2(a)/);

    40 Assert.assertTrue(result.length === 4);

    41 Assert.assertTrue(result[0] === 'aa');

    42 Assert.assertTrue(result[1] === 'a');

    43 Assert.assertTrue(result[2] === undefined);

    44 Assert.assertTrue(result[3] === 'a');

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