59 lines
2.8 KiB
JavaScript
59 lines
2.8 KiB
JavaScript
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// Copyright 2009 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// See: http://code.google.com/p/v8/issues/detail?id=254
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// RegExp with global flag: exec and test updates lastIndex.
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var re = /x/g;
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assertEquals(0, re.lastIndex, "Global, initial lastIndex");
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assertTrue(re.test("x"), "Global, test 1");
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assertEquals(1, re.lastIndex, "Global, lastIndex after test 1");
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assertFalse(re.test("x"), "Global, test 2");
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assertEquals(0, re.lastIndex, "Global, lastIndex after test 2");
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assertEquals(["x"], re.exec("x"), "Global, exec 1");
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assertEquals(1, re.lastIndex, "Global, lastIndex after exec 1");
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assertEquals(null, re.exec("x"), "Global, exec 2");
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assertEquals(0, re.lastIndex, "Global, lastIndex after exec 2");
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// RegExp without global flag: exec and test leavs lastIndex at zero.
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var re2 = /x/;
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assertEquals(0, re2.lastIndex, "Non-global, initial lastIndex");
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assertTrue(re2.test("x"), "Non-global, test 1");
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assertEquals(0, re2.lastIndex, "Non-global, lastIndex after test 1");
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assertTrue(re2.test("x"), "Non-global, test 2");
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assertEquals(0, re2.lastIndex, "Non-global, lastIndex after test 2");
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assertEquals(["x"], re2.exec("x"), "Non-global, exec 1");
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assertEquals(0, re2.lastIndex, "Non-global, lastIndex after exec 1");
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assertEquals(["x"], re2.exec("x"), "Non-global, exec 2");
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assertEquals(0, re2.lastIndex, "Non-global, lastIndex after exec 2");
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