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