From 4ede982a4b90a914074dbd73954222721c624460 Mon Sep 17 00:00:00 2001 From: "erik.corry@gmail.com" Date: Thu, 11 Dec 2008 09:01:55 +0000 Subject: [PATCH] Added test for bug 176 (zero length matches should fail in quantifiers). Review URL: http://codereview.chromium.org/13381 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@960 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 --- test/mjsunit/bugs/bug-176.js | 50 ++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 test/mjsunit/bugs/bug-176.js diff --git a/test/mjsunit/bugs/bug-176.js b/test/mjsunit/bugs/bug-176.js new file mode 100644 index 0000000000..b204812468 --- /dev/null +++ b/test/mjsunit/bugs/bug-176.js @@ -0,0 +1,50 @@ +// Copyright 2008 the V8 project authors. All rights reserved. +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * 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. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT +// OWNER OR 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. + +// See http://code.google.com/p/v8/issues/detail?id=176 + +assertEquals("f,", + "foo".match(/(?:(?=(f)o))?f/).toString(), + "zero length match in (?:) with capture in lookahead"); +assertEquals("f,", + "foo".match(/(?=(f)o)?f/).toString(), + "zero length match in (?=) with capture in lookahead"); +assertEquals("fo,f", + "foo".match(/(?:(?=(f)o)f)?o/), + "non-zero length match with capture in lookahead"); +assertEquals("fo,f", + "foo".match(/(?:(?=(f)o)f?)?o/), + "non-zero length match with greedy ? in (?:)"); +assertEquals("fo,f", + "foo".match(/(?:(?=(f)o)f??)?o/), + "non-zero length match with non-greedy ? in (?:), o forces backtrack"); +assertEquals("fo,f", + "foo".match(/(?:(?=(f)o)f??)?./), + "non-zero length match with non-greedy ? in (?:), zero length match causes backtrack"); +assertEquals("f,", + "foo".match(/(?:(?=(f)o)fx)?./), + "x causes backtrack inside (?:)");