1a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Copyright 2008 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block/** 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block * @fileoverview Test indexing on strings with []. 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block */ 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar foo = "Foo"; 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("Foo", foo); 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("F", foo[0]); 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("o", foo[1]); 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("o", foo[2]); 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 386ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// Test string keyed load IC. 396ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockfor (var i = 0; i < 10; i++) { 406ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals("F", foo[0]); 416ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals("o", foo[1]); 426ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals("o", foo[2]); 436ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals("F", (foo[0] + "BarBazQuuxFooBarQuux")[0]); 446ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 456ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("F", foo["0" + ""], "string index"); 47a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("o", foo["1"], "string index"); 48a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("o", foo["2"], "string index"); 49a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 50a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("undefined", typeof(foo[3]), "out of range"); 51a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SpiderMonkey 1.5 fails this next one. So does FF 2.0.6. 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("undefined", typeof(foo[-1]), "known failure in SpiderMonkey 1.5"); 53a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("undefined", typeof(foo[-2]), "negative index"); 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockfoo[0] = "f"; 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("Foo", foo); 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockfoo[3] = "t"; 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("Foo", foo); 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("undefined", typeof(foo[3]), "out of range"); 61a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("undefined", typeof(foo[-2]), "negative index"); 62a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 63a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar S = new String("foo"); 64257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochassertEquals(Object("foo"), S); 65a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("f", S[0], "string object"); 66a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("f", S["0"], "string object"); 67a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockS[0] = 'bente'; 68a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("f", S[0], "string object"); 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("f", S["0"], "string object"); 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockS[-2] = 'spider'; 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('spider', S[-2]); 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockS[3] = 'monkey'; 73a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('monkey', S[3]); 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockS['foo'] = 'Fu'; 75a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("Fu", S.foo); 76a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 77a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// In FF this is ignored I think. In V8 it puts a property on the String object 78a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// but you won't ever see it because it is hidden by the 0th character in the 79a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// string. The net effect is pretty much the same. 80a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockS["0"] = 'bente'; 81a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("f", S[0], "string object"); 82a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("f", S["0"], "string object"); 83a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 84a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, 0 in S, "0 in"); 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, -1 in S, "-1 in"); 86a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, 2 in S, "2 in"); 87a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, 3 in S, "3 in"); 88a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, 4 in S, "3 in"); 89a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 90a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, "0" in S, '"0" in'); 91a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, "-1" in S, '"-1" in'); 92a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, "2" in S, '"2" in'); 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, "3" in S, '"3" in'); 94a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, "4" in S, '"3" in'); 95a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 96a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, S.hasOwnProperty(0), "0 hasOwnProperty"); 97a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, S.hasOwnProperty(-1), "-1 hasOwnProperty"); 98a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, S.hasOwnProperty(2), "2 hasOwnProperty"); 99a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, S.hasOwnProperty(3), "3 hasOwnProperty"); 100a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, S.hasOwnProperty(4), "3 hasOwnProperty"); 101a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 102a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, S.hasOwnProperty("0"), '"0" hasOwnProperty'); 103a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, S.hasOwnProperty("-1"), '"-1" hasOwnProperty'); 104a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, S.hasOwnProperty("2"), '"2" hasOwnProperty'); 105a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, S.hasOwnProperty("3"), '"3" hasOwnProperty'); 106a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, S.hasOwnProperty("4"), '"3" hasOwnProperty'); 107a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 108a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, "foo".hasOwnProperty(0), "foo 0 hasOwnProperty"); 109a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, "foo".hasOwnProperty(-1), "foo -1 hasOwnProperty"); 110a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, "foo".hasOwnProperty(2), "foo 2 hasOwnProperty"); 111a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, "foo".hasOwnProperty(4), "foo 3 hasOwnProperty"); 112a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 113a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, "foo".hasOwnProperty("0"), 'foo "0" hasOwnProperty'); 114a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, "foo".hasOwnProperty("-1"), 'foo "-1" hasOwnProperty'); 115a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(true, "foo".hasOwnProperty("2"), 'foo "2" hasOwnProperty'); 116a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, "foo".hasOwnProperty("4"), 'foo "3" hasOwnProperty'); 117a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 118a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//assertEquals(true, 0 in "foo", "0 in"); 119a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//assertEquals(false, -1 in "foo", "-1 in"); 120a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//assertEquals(true, 2 in "foo", "2 in"); 121a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//assertEquals(false, 3 in "foo", "3 in"); 122a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 123a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//assertEquals(true, "0" in "foo", '"0" in'); 124a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//assertEquals(false, "-1" in "foo", '"-1" in'); 125a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//assertEquals(true, "2" in "foo", '"2" in'); 126a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block//assertEquals(false, "3" in "foo", '"3" in'); 127a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 128a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockdelete S[3]; 129a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("undefined", typeof(S[3])); 130a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, 3 in S); 131a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals(false, "3" in S); 132a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 133a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar N = new Number(43); 134257744e915dfc84d6d07a6b2accf8402d9ffc708Ben MurdochassertEquals(Object(43), N); 135a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockN[-2] = "Alpha"; 136a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("Alpha", N[-2]); 137a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockN[0] = "Zappa"; 138a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("Zappa", N[0]); 139a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals("Zappa", N["0"]); 140a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 141a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar A = ["V", "e", "t", "t", "e", "r"]; 142a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar A2 = (A[0] = "v"); 143a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('v', A[0]); 144a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('v', A2); 145a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 146a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar S = new String("Onkel"); 147a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar S2 = (S[0] = 'o'); 148a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('O', S[0]); 149a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('o', S2); 150a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 151a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar s = "Tante"; 152a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar s2 = (s[0] = 't'); 153a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('T', s[0]); 154a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('t', s2); 155a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 156a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar S2 = (S[-2] = 'o'); 157a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('o', S[-2]); 158a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('o', S2); 159a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 160a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar s2 = (s[-2] = 't'); 161a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('undefined', typeof(s[-2])); 162a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockassertEquals('t', s2); 1636ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1646ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// Make sure enough of the one-char string cache is filled. 1656ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar alpha = ['@']; 1666ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockfor (var i = 1; i < 128; i++) { 1676ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var c = String.fromCharCode(i); 1686ded16be15dd865a9b21ea304d5273c8be299c87Steve Block alpha[i] = c[0]; 1696ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 1706ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar alphaStr = alpha.join(""); 1716ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1726ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// Now test chars. 1736ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockfor (var i = 1; i < 128; i++) { 1746ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals(alpha[i], alphaStr[i]); 1756ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals(String.fromCharCode(i), alphaStr[i]); 1766ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 1776ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1786ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// Test for keyed ic. 1796ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar foo = ['a12', ['a', 2, 'c'], 'a31', 42]; 1806ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar results = [1, 2, 3, NaN]; 1816ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockfor (var i = 0; i < 200; ++i) { 1826ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var index = Math.floor(i / 50); 1836ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var receiver = foo[index]; 1846ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var expected = results[index]; 1856ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var actual = +(receiver[1]); 1866ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals(expected, actual); 1876ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 1886ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1896ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar keys = [0, '1', 2, 3.0, -1, 10]; 1906ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar str = 'abcd', arr = ['a', 'b', 'c', 'd', undefined, undefined]; 1916ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockfor (var i = 0; i < 300; ++i) { 1926ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var index = Math.floor(i / 50); 1936ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var key = keys[index]; 1946ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var expected = arr[index]; 1956ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var actual = str[key]; 1966ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals(expected, actual); 1976ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 1986ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1996ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// Test heap number case. 2006ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar keys = [0, Math.floor(2) * 0.5]; 2016ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar str = 'ab', arr = ['a', 'b']; 2026ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockfor (var i = 0; i < 100; ++i) { 2036ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var index = Math.floor(i / 50); 2046ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var key = keys[index]; 2056ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var expected = arr[index]; 2066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var actual = str[key]; 2076ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals(expected, actual); 2086ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2096ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2107f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch// Test negative zero case. 2117f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdochvar keys = [0, -0.0]; 2127f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdochvar str = 'ab', arr = ['a', 'a']; 2137f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdochfor (var i = 0; i < 100; ++i) { 2147f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch var index = Math.floor(i / 50); 2157f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch var key = keys[index]; 2167f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch var expected = arr[index]; 2177f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch var actual = str[key]; 2187f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch assertEquals(expected, actual); 2197f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 2207f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 2217f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch// Test "not-an-array-index" case. 2227f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdochvar keys = [0, 0.5]; 2237f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdochvar str = 'ab', arr = ['a', undefined]; 2247f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdochfor (var i = 0; i < 100; ++i) { 2257f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch var index = Math.floor(i / 50); 2267f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch var key = keys[index]; 2277f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch var expected = arr[index]; 2287f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch var actual = str[key]; 2297f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch assertEquals(expected, actual); 2307f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 2317f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 2326ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// Test out of range case. 2336ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar keys = [0, -1]; 2346ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar str = 'ab', arr = ['a', undefined]; 2356ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockfor (var i = 0; i < 100; ++i) { 2366ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var index = Math.floor(i / 50); 2376ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var key = keys[index]; 2386ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var expected = arr[index]; 2396ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var actual = str[key]; 2406ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals(expected, actual); 2416ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2426ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2436ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar keys = [0, 10]; 2446ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar str = 'ab', arr = ['a', undefined]; 2456ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockfor (var i = 0; i < 100; ++i) { 2466ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var index = Math.floor(i / 50); 2476ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var key = keys[index]; 2486ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var expected = arr[index]; 2496ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var actual = str[key]; 2506ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals(expected, actual); 2516ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2526ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2536ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// Test two byte string. 2546ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvar str = '\u0427', arr = ['\u0427']; 2556ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockfor (var i = 0; i < 50; ++i) { 2566ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var expected = arr[0]; 2576ded16be15dd865a9b21ea304d5273c8be299c87Steve Block var actual = str[0]; 2586ded16be15dd865a9b21ea304d5273c8be299c87Steve Block assertEquals(expected, actual); 2597f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 260