74 lines
4.1 KiB
JavaScript
74 lines
4.1 KiB
JavaScript
description(
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"This test checks the behavior of the reduceRight() method on a number of objects."
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);
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function toObject(array) {
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var o = {};
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for (var i in array)
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o[i] = array[i];
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o.length = array.length;
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o.reduceRight = Array.prototype.reduceRight;
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return o;
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}
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function toUnorderedObject(array) {
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var o = {};
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var props = [];
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for (var i in array)
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props.push(i);
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for (var i = props.length - 1; i >= 0; i--)
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o[props[i]] = array[props[i]];
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o.length = array.length;
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o.reduceRight = Array.prototype.reduceRight;
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return o;
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}
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shouldBe("[0,1,2,3].reduceRight(function(a,b){ return a + b; })", "6");
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shouldBe("[1,2,3].reduceRight(function(a,b){ return a + b; })", "6");
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shouldBe("[0,1,2,3].reduceRight(function(a,b){ return a + b; }, 4)", "10");
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shouldBe("[1,2,3].reduceRight(function(a,b){ return a + b; }, 4)", "10");
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shouldBe("toObject([0,1,2,3]).reduceRight(function(a,b){ return a + b; })", "6");
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shouldBe("toObject([1,2,3]).reduceRight(function(a,b){ return a + b; })", "6");
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shouldBe("toObject([0,1,2,3]).reduceRight(function(a,b){ return a + b; }, 4)", "10");
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shouldBe("toObject([1,2,3]).reduceRight(function(a,b){ return a + b; }, 4)", "10");
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shouldBe("toUnorderedObject([0,1,2,3]).reduceRight(function(a,b){ return a + b; })", "6");
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shouldBe("toUnorderedObject([1,2,3]).reduceRight(function(a,b){ return a + b; })", "6");
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shouldBe("toUnorderedObject([0,1,2,3]).reduceRight(function(a,b){ return a + b; }, 4)", "10");
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shouldBe("toUnorderedObject([1,2,3]).reduceRight(function(a,b){ return a + b; }, 4)", "10");
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sparseArray = [];
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sparseArray[10] = 10;
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shouldBe("sparseArray.reduceRight(function(a,b){ return a + b; }, 0)", "10");
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shouldBe("toObject(sparseArray).reduceRight(function(a,b){ return a + b; }, 0)", "10");
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var callCount = 0;
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shouldBe("sparseArray.reduceRight(function(a,b){ callCount++; }); callCount", "0");
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callCount = 0;
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shouldBe("toObject(sparseArray).reduceRight(function(a,b){ callCount++; }); callCount", "0");
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var callCount = 0;
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shouldBe("sparseArray.reduceRight(function(a,b){ callCount++; }, 0); callCount", "1");
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callCount = 0;
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shouldBe("toObject(sparseArray).reduceRight(function(a,b){ callCount++; }, 0); callCount", "1");
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callCount = 0;
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shouldBe("[0,1,2,3,4].reduceRight(function(a,b){ callCount++; }, 0); callCount", "5");
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callCount = 0;
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shouldBe("[0,1,2,3,4].reduceRight(function(a,b){ callCount++; }); callCount", "4");
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callCount = 0;
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shouldBe("[1, 2, 3, 4].reduceRight(function(a,b, i, thisObj){ thisObj.length--; callCount++; return a + b; }, 0); callCount", "4");
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callCount = 0;
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shouldBe("[1, 2, 3, 4].reduceRight(function(a,b, i, thisObj){ thisObj.length = 1; callCount++; return a + b; }, 0); callCount", "2");
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callCount = 0;
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shouldBe("[1, 2, 3, 4].reduceRight(function(a,b, i, thisObj){ thisObj.length++; callCount++; return a + b; }, 0); callCount", "4");
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callCount = 0;
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shouldBe("toObject([1, 2, 3, 4]).reduceRight(function(a,b, i, thisObj){ thisObj.length--; callCount++; return a + b; }, 0); callCount", "4");
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callCount = 0;
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shouldBe("toObject([1, 2, 3, 4]).reduceRight(function(a,b, i, thisObj){ thisObj.length++; callCount++; return a + b; }, 0); callCount", "4");
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shouldBe("[[0,1], [2,3], [4,5]].reduceRight(function(a,b) {return a.concat(b);}, [])", "[4,5,2,3,0,1]");
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shouldBe("toObject([[0,1], [2,3], [4,5]]).reduceRight(function(a,b) {return a.concat(b);}, [])", "[4,5,2,3,0,1]");
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shouldBe("toObject([0,1,2,3,4,5]).reduceRight(function(a,b,i) {return a.concat([i,b]);}, [])", "[5,5,4,4,3,3,2,2,1,1,0,0]");
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shouldBe("toUnorderedObject([[0,1], [2,3], [4,5]]).reduceRight(function(a,b) {return a.concat(b);}, [])", "[4,5,2,3,0,1]");
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shouldBe("toUnorderedObject([0,1,2,3,4,5]).reduceRight(function(a,b,i) {return a.concat([i,b]);}, [])", "[5,5,4,4,3,3,2,2,1,1,0,0]");
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shouldBe("[0,1,2,3,4,5].reduceRight(function(a,b,i) {return a.concat([i,b]);}, [])", "[5,5,4,4,3,3,2,2,1,1,0,0]");
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shouldBe("[2,3].reduceRight(function() {'use strict'; return this;})", "undefined");
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var negativeLengthObject = { length: -1, 0: 1, 1: 2 };
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shouldBe("Array.prototype.reduceRight.call(negativeLengthObject, function (a, b) { return a + b; }, 100)", "100");
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