15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright 2008 the V8 project authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Redistribution and use in source and binary forms, with or without 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// modification, are permitted provided that the following conditions are 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// met: 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Redistributions of source code must retain the above copyright 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// notice, this list of conditions and the following disclaimer. 82a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// * Redistributions in binary form must reproduce the above 91320f92c476a1ad9d19dba2a48c72b75566198e9Primiano Tucci// copyright notice, this list of conditions and the following 100529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch// disclaimer in the documentation and/or other materials provided 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// with the distribution. 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// * Neither the name of Google Inc. nor the names of its 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// contributors may be used to endorse or promote products derived 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// from this software without specific prior written permission. 15ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch// 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 277dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 287dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// This file contains a number of tests of array functions and their 297dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch// interaction with properties in the prototype chain. 3090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// 3190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)// The behavior of SpiderMonkey is slightly different for arrays (see 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// below). Our behavior is consistent and matches the bahavior of 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// KJS. 340529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 350529e5d033099cbfc42635f6f6183833b09dff6eBen Murdochvar proto = { length:3, 0:'zero', 1:'one', 2:'two' } 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)function constructor() {}; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)constructor.prototype = proto; 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Set elements on the array prototype. 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Array.prototype[0] = 'zero'; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Array.prototype[1] = 'one'; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)Array.prototype[2] = 'two'; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ---------------------------------------------------------------------- 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Helper functions. 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ---------------------------------------------------------------------- 475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)function assertHasOwnProperties(object, limit) { 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (var i = 0; i < limit; i++) { 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assertTrue(object.hasOwnProperty(i)); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 54a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch// ---------------------------------------------------------------------- 55a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch// shift. 56a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch// ---------------------------------------------------------------------- 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)function runTest1() { 59 var nonArray = new constructor(); 60 var array = ['zero', , 'two']; 61 // Shift away the zero. 62 assertEquals('zero', array.shift()); 63 assertEquals('zero', Array.prototype.shift.call(nonArray)); 64 // Check that the local object has properties 0 and 1 with the right 65 // values. 66 assertEquals(2, array.length); 67 assertEquals(2, nonArray.length); 68 assertHasOwnProperties(array, 2); 69 assertHasOwnProperties(nonArray, 2); 70 // Note: Spidermonkey is inconsistent here. It treats arrays 71 // differently from non-arrays. It only consults the prototype for 72 // non-arrays. Therefore, array[0] is undefined in Spidermonkey and 73 // 'one' in V8 and KJS. 74 assertEquals('one', array[0]); 75 assertEquals('one', nonArray[0]); 76 assertEquals('two', array[1]); 77 assertEquals('two', nonArray[1]); 78 // Get index 2 from the prototype. 79 assertEquals('two', array[2]); 80 assertEquals('two', nonArray[2]); 81} 82 83runTest1(); 84 85// ---------------------------------------------------------------------- 86// unshift. 87// ---------------------------------------------------------------------- 88 89runTest2 = function() { 90 var nonArray = new constructor(); 91 var array = ['zero', , 'two']; 92 // Unshift a new 'zero'. 93 assertEquals(4, array.unshift('zero')); 94 assertEquals(4, Array.prototype.unshift.call(nonArray, 'zero')); 95 // Check that the local object has properties 0 through 3 with the 96 // right values. 97 assertEquals(4, array.length); 98 assertEquals(4, nonArray.length); 99 assertHasOwnProperties(array, 4); 100 assertHasOwnProperties(nonArray, 4); 101 assertEquals('zero', array[0]); 102 assertEquals('zero', nonArray[0]); 103 assertEquals('zero', array[1]); 104 assertEquals('zero', nonArray[1]); 105 // Again Spidermonkey is inconsistent. array[2] is undefined 106 // instead of 'one'. 107 assertEquals('one', array[2]); 108 assertEquals('one', nonArray[2]); 109 assertEquals('two', array[3]); 110 assertEquals('two', nonArray[3]); 111} 112 113runTest2(); 114 115 116// ---------------------------------------------------------------------- 117// splice 118// ---------------------------------------------------------------------- 119 120runTest3 = function() { 121 var nonArray = new constructor(); 122 var array = ['zero', , 'two']; 123 // Delete the first element by splicing in nothing. 124 assertArrayEquals(['zero'], array.splice(0, 1)); 125 assertArrayEquals(['zero'], Array.prototype.splice.call(nonArray, 0, 1)); 126 // Check that the local object has properties 0 and 1 with the right 127 // values. 128 assertEquals(2, array.length); 129 assertEquals(2, nonArray.length); 130 assertHasOwnProperties(array, 2); 131 assertHasOwnProperties(nonArray, 2); 132 // Again Spidermonkey is inconsistent. array[0] is undefined 133 // instead of 'one'. 134 assertEquals('one', array[0]); 135 assertEquals('one', nonArray[0]); 136 assertEquals('two', array[1]); 137 assertEquals('two', nonArray[1]); 138 // Get index 2 from the prototype. 139 assertEquals('two', array[2]); 140 assertEquals('two', nonArray[2]); 141}; 142 143runTest3(); 144 145 146// ---------------------------------------------------------------------- 147// slice 148// ---------------------------------------------------------------------- 149 150runTest4 = function() { 151 var nonArray = new constructor(); 152 var array = ['zero', , 'two']; 153 // Again Spidermonkey is inconsistent. (array.slice(0, 3))[1] is 154 // undefined instead of 'one'. 155 assertArrayEquals(['zero', 'one', 'two'], array.slice(0, 3)); 156 assertArrayEquals(['zero', 'one', 'two'], Array.prototype.slice.call(nonArray, 0, 3)); 157}; 158 159runTest4(); 160