Migrate more tests from blink repository.

test/webkit/fast/regex/assertion.js

+// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1.  Redistributions of source code must retain the above copyright
+//     notice, this list of conditions and the following disclaimer.
+// 2.  Redistributions in binary form must reproduce the above copyright
+//     notice, this list of conditions and the following disclaimer in the
+//     documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+description("This page tests handling of parenthetical assertions.");
+
+var regex1 = /(x)(?=\1)x/;
+shouldBe("regex1.exec('xx')", "['xx','x']");
+
+var regex2 = /(.*?)a(?!(a+)b\2c)\2(.*)/;
+shouldBe("regex2.exec('baaabaac')", "['baaabaac','ba',undefined,'abaac']");
+
+var regex3 = /(?=(a+?))(\1ab)/;
+shouldBe("regex3.exec('aaab')", "['aab','a','aab']");
+
+var regex4 = /(?=(a+?))(\1ab)/;
+shouldBe("regex4.exec('aaab')", "['aab','a','aab']");
+
+var regex5 = /^P([1-6])(?=\1)([1-6])$/;
+shouldBe("regex5.exec('P11')", "['P11','1','1']");
+
+var regex6 = /(([a-c])b*?\2)*/;
+shouldBe("regex6.exec('ababbbcbc')", "['ababb','bb','b']");
+
+var regex7 = /(x)(?=x)x/;
+shouldBe("regex7.exec('xx')", "['xx','x']");
+
+var regex8 = /(x)(\1)/;
+shouldBe("regex8.exec('xx')", "['xx','x','x']");
+
+var regex9 = /(x)(?=\1)x/;
+shouldBeNull("regex9.exec('xy')");
+
+var regex10 = /(x)(?=x)x/;
+shouldBeNull("regex10.exec('xy')");
+
+var regex11 = /(x)(\1)/;
+shouldBeNull("regex11.exec('xy')");
+
+var regex12 = /(x)(?=\1)x/;
+shouldBeNull("regex12.exec('x')");
+shouldBe("regex12.exec('xx')", "['xx','x']");
+shouldBe("regex12.exec('xxy')", "['xx','x']");
+
+var regex13 = /(x)zzz(?=\1)x/;
+shouldBe("regex13.exec('xzzzx')", "['xzzzx','x']");
+shouldBe("regex13.exec('xzzzxy')", "['xzzzx','x']");
+
+var regex14 = /(a)\1(?=(b*c))bc/;
+shouldBe("regex14.exec('aabc')", "['aabc','a','bc']");
+shouldBe("regex14.exec('aabcx')", "['aabc','a','bc']");
+
+var regex15 = /(a)a(?=(b*c))bc/;
+shouldBe("regex15.exec('aabc')", "['aabc','a','bc']");
+shouldBe("regex15.exec('aabcx')", "['aabc','a','bc']");
+
+var regex16 = /a(?=(b*c))bc/;
+shouldBeNull("regex16.exec('ab')");
+shouldBe("regex16.exec('abc')", "['abc','bc']");
+
+var regex17 = /(?=((?:ab)*))a/;
+shouldBe("regex17.exec('ab')", "['a','ab']");
+shouldBe("regex17.exec('abc')", "['a','ab']");
+
+var regex18 = /(?=((?:xx)*))x/;
+shouldBe("regex18.exec('x')", "['x','']");
+shouldBe("regex18.exec('xx')", "['x','xx']");
+shouldBe("regex18.exec('xxx')", "['x','xx']");
+
+var regex19 = /(?=((xx)*))x/;
+shouldBe("regex19.exec('x')", "['x','',undefined]");
+shouldBe("regex19.exec('xx')", "['x','xx','xx']");
+shouldBe("regex19.exec('xxx')", "['x','xx','xx']");
+
+var regex20 = /(?=(xx))+x/;
+shouldBeNull("regex20.exec('x')");
+shouldBe("regex20.exec('xx')", "['x','xx']");
+shouldBe("regex20.exec('xxx')", "['x','xx']");
+
+var regex21 = /(?=a+b)aab/;
+shouldBe("regex21.exec('aab')", "['aab']");
+
+var regex22 = /(?!(u|m{0,}g+)u{1,}|2{2,}!1%n|(?!K|(?=y)|(?=ip))+?)(?=(?=(((?:7))*?)*?))p/m;
+shouldBe("regex22.exec('55up')", "null");
+
+var regex23 = /(?=(a)b|c?)()*d/;
+shouldBe("regex23.exec('ax')", "null");
+
+var regex24 = /(?=a|b?)c/;
+shouldBe("regex24.exec('x')", "null");
+