1 // Copyright 2013 the V8 project authors. All rights reserved. 2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions 6 // are met: 7 // 1. Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // 2. Redistributions in binary form must reproduce the above copyright 10 // notice, this list of conditions and the following disclaimer in the 11 // documentation and/or other materials provided with the distribution. 12 // 13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 24 description( 25 "This test checks the behavior of the reduce() method on a number of objects." 26 ); 27 28 function toObject(array) { 29 var o = {}; 30 for (var i in array) 31 o[i] = array[i]; 32 o.length = array.length; 33 o.reduce = Array.prototype.reduce; 34 return o; 35 } 36 function toUnorderedObject(array) { 37 var o = {}; 38 var props = []; 39 for (var i in array) 40 props.push(i); 41 for (var i = props.length - 1; i >= 0; i--) 42 o[props[i]] = array[props[i]]; 43 o.length = array.length; 44 o.reduce = Array.prototype.reduce; 45 return o; 46 } 47 48 shouldBe("[0,1,2,3].reduce(function(a,b){ return a + b; })", "6"); 49 shouldBe("[1,2,3].reduce(function(a,b){ return a + b; })", "6"); 50 shouldBe("[0,1,2,3].reduce(function(a,b){ return a + b; }, 4)", "10"); 51 shouldBe("[1,2,3].reduce(function(a,b){ return a + b; }, 4)", "10"); 52 shouldBe("toObject([0,1,2,3]).reduce(function(a,b){ return a + b; })", "6"); 53 shouldBe("toObject([1,2,3]).reduce(function(a,b){ return a + b; })", "6"); 54 shouldBe("toObject([0,1,2,3]).reduce(function(a,b){ return a + b; }, 4)", "10"); 55 shouldBe("toObject([1,2,3]).reduce(function(a,b){ return a + b; }, 4)", "10"); 56 shouldBe("toUnorderedObject([0,1,2,3]).reduce(function(a,b){ return a + b; })", "6"); 57 shouldBe("toUnorderedObject([1,2,3]).reduce(function(a,b){ return a + b; })", "6"); 58 shouldBe("toUnorderedObject([0,1,2,3]).reduce(function(a,b){ return a + b; }, 4)", "10"); 59 shouldBe("toUnorderedObject([1,2,3]).reduce(function(a,b){ return a + b; }, 4)", "10"); 60 sparseArray = []; 61 sparseArray[10] = 10; 62 shouldBe("sparseArray.reduce(function(a,b){ return a + b; }, 0)", "10"); 63 shouldBe("toObject(sparseArray).reduce(function(a,b){ return a + b; }, 0)", "10"); 64 var callCount = 0; 65 shouldBe("sparseArray.reduce(function(a,b){ callCount++; }); callCount", "0"); 66 callCount = 0; 67 shouldBe("toObject(sparseArray).reduce(function(a,b){ callCount++; }); callCount", "0"); 68 var callCount = 0; 69 shouldBe("sparseArray.reduce(function(a,b){ callCount++; }, 0); callCount", "1"); 70 callCount = 0; 71 shouldBe("toObject(sparseArray).reduce(function(a,b){ callCount++; }, 0); callCount", "1"); 72 callCount = 0; 73 shouldBe("[0,1,2,3,4].reduce(function(a,b){ callCount++; }, 0); callCount", "5"); 74 callCount = 0; 75 shouldBe("[0,1,2,3,4].reduce(function(a,b){ callCount++; }); callCount", "4"); 76 callCount = 0; 77 shouldBe("[1, 2, 3, 4].reduce(function(a,b, i, thisObj){ thisObj.length--; callCount++; return a + b; }, 0); callCount", "2"); 78 callCount = 0; 79 shouldBe("[1, 2, 3, 4].reduce(function(a,b, i, thisObj){ thisObj.length++; callCount++; return a + b; }, 0); callCount", "4"); 80 callCount = 0; 81 shouldBe("toObject([1, 2, 3, 4]).reduce(function(a,b, i, thisObj){ thisObj.length--; callCount++; return a + b; }, 0); callCount", "4"); 82 callCount = 0; 83 shouldBe("toObject([1, 2, 3, 4]).reduce(function(a,b, i, thisObj){ thisObj.length++; callCount++; return a + b; }, 0); callCount", "4"); 84 85 shouldBe("[[0,1], [2,3], [4,5]].reduce(function(a,b) {return a.concat(b);}, [])", "[0,1,2,3,4,5]"); 86 shouldBe("toObject([[0,1], [2,3], [4,5]]).reduce(function(a,b) {return a.concat(b);}, [])", "[0,1,2,3,4,5]"); 87 shouldBe("toObject([0,1,2,3,4,5]).reduce(function(a,b,i) {return a.concat([i,b]);}, [])", "[0,0,1,1,2,2,3,3,4,4,5,5]"); 88 shouldBe("toUnorderedObject([[0,1], [2,3], [4,5]]).reduce(function(a,b) {return a.concat(b);}, [])", "[0,1,2,3,4,5]"); 89 shouldBe("toUnorderedObject([0,1,2,3,4,5]).reduce(function(a,b,i) {return a.concat([i,b]);}, [])", "[0,0,1,1,2,2,3,3,4,4,5,5]"); 90 shouldBe("[0,1,2,3,4,5].reduce(function(a,b,i) {return a.concat([i,b]);}, [])", "[0,0,1,1,2,2,3,3,4,4,5,5]"); 91 shouldBe("[2,3].reduce(function() {'use strict'; return this;})", "undefined"); 92
