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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
89 lines
4.1 KiB
JavaScript
89 lines
4.1 KiB
JavaScript
// Copyright 2008 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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var s = "test test test";
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var MAX_DOUBLE = 1.7976931348623157e+308;
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var MIN_DOUBLE = -MAX_DOUBLE;
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var MAX_SMI = Math.pow(2,30)-1;
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var MIN_SMI = -Math.pow(2,30);
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assertEquals(10, s.lastIndexOf("test", Infinity), "tinf");
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assertEquals(10, s.lastIndexOf("test", MAX_DOUBLE), "tmaxdouble");
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assertEquals(10, s.lastIndexOf("test", MAX_SMI), "tmaxsmi");
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assertEquals(10, s.lastIndexOf("test", s.length * 2), "t2length");
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assertEquals(10, s.lastIndexOf("test", 15), "t15");
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assertEquals(10, s.lastIndexOf("test", 14), "t14");
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assertEquals(10, s.lastIndexOf("test", 10), "t10");
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assertEquals(5, s.lastIndexOf("test", 9), "t9");
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assertEquals(5, s.lastIndexOf("test", 6), "t6");
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assertEquals(5, s.lastIndexOf("test", 5), "t5");
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assertEquals(0, s.lastIndexOf("test", 4), "t4");
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assertEquals(0, s.lastIndexOf("test", 0), "t0");
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assertEquals(0, s.lastIndexOf("test", -1), "t-1");
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assertEquals(0, s.lastIndexOf("test", -s.length), "t-len");
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assertEquals(0, s.lastIndexOf("test", MIN_SMI), "tminsmi");
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assertEquals(0, s.lastIndexOf("test", MIN_DOUBLE), "tmindouble");
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assertEquals(0, s.lastIndexOf("test", -Infinity), "tneginf");
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assertEquals(10, s.lastIndexOf("test"), "t");
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assertEquals(-1, s.lastIndexOf("notpresent"), "n");
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assertEquals(-1, s.lastIndexOf(), "none");
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assertEquals(10, s.lastIndexOf("test", "not a number"), "nan");
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var longNonMatch = "overlong string that doesn't match";
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var longAlmostMatch = "test test test!";
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var longAlmostMatch2 = "!test test test";
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assertEquals(-1, s.lastIndexOf(longNonMatch), "long");
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assertEquals(-1, s.lastIndexOf(longNonMatch, 10), "longpos");
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assertEquals(-1, s.lastIndexOf(longNonMatch, NaN), "longnan");
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assertEquals(-1, s.lastIndexOf(longAlmostMatch), "tlong");
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assertEquals(-1, s.lastIndexOf(longAlmostMatch, 10), "tlongpos");
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assertEquals(-1, s.lastIndexOf(longAlmostMatch), "tlongnan");
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var nonInitialMatch = "est";
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assertEquals(-1, s.lastIndexOf(nonInitialMatch, 0), "noninit");
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assertEquals(-1, s.lastIndexOf(nonInitialMatch, -1), "noninitneg");
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assertEquals(-1, s.lastIndexOf(nonInitialMatch, MIN_SMI), "noninitminsmi");
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assertEquals(-1, s.lastIndexOf(nonInitialMatch, MIN_DOUBLE), "noninitmindbl");
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assertEquals(-1, s.lastIndexOf(nonInitialMatch, -Infinity), "noninitneginf");
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for (var i = s.length + 10; i >= 0; i--) {
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var expected = i < s.length ? i : s.length;
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assertEquals(expected, s.lastIndexOf("", i), "empty" + i);
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}
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var reString = "asdf[a-z]+(asdf)?";
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assertEquals(4, reString.lastIndexOf("[a-z]+"), "r4");
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assertEquals(10, reString.lastIndexOf("(asdf)?"), "r10");
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assertEquals(1, String.prototype.lastIndexOf.length, "length");
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