This test checks the behavior of the reduceRight() method on a number of objects. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS [0,1,2,3].reduceRight(function(a,b){ return a + b; }) is 6 PASS [1,2,3].reduceRight(function(a,b){ return a + b; }) is 6 PASS [0,1,2,3].reduceRight(function(a,b){ return a + b; }, 4) is 10 PASS [1,2,3].reduceRight(function(a,b){ return a + b; }, 4) is 10 PASS toObject([0,1,2,3]).reduceRight(function(a,b){ return a + b; }) is 6 PASS toObject([1,2,3]).reduceRight(function(a,b){ return a + b; }) is 6 PASS toObject([0,1,2,3]).reduceRight(function(a,b){ return a + b; }, 4) is 10 PASS toObject([1,2,3]).reduceRight(function(a,b){ return a + b; }, 4) is 10 PASS toUnorderedObject([0,1,2,3]).reduceRight(function(a,b){ return a + b; }) is 6 PASS toUnorderedObject([1,2,3]).reduceRight(function(a,b){ return a + b; }) is 6 PASS toUnorderedObject([0,1,2,3]).reduceRight(function(a,b){ return a + b; }, 4) is 10 PASS toUnorderedObject([1,2,3]).reduceRight(function(a,b){ return a + b; }, 4) is 10 PASS sparseArray.reduceRight(function(a,b){ return a + b; }, 0) is 10 PASS toObject(sparseArray).reduceRight(function(a,b){ return a + b; }, 0) is 10 PASS sparseArray.reduceRight(function(a,b){ callCount++; }); callCount is 0 PASS toObject(sparseArray).reduceRight(function(a,b){ callCount++; }); callCount is 0 PASS sparseArray.reduceRight(function(a,b){ callCount++; }, 0); callCount is 1 PASS toObject(sparseArray).reduceRight(function(a,b){ callCount++; }, 0); callCount is 1 PASS [0,1,2,3,4].reduceRight(function(a,b){ callCount++; }, 0); callCount is 5 PASS [0,1,2,3,4].reduceRight(function(a,b){ callCount++; }); callCount is 4 PASS [1, 2, 3, 4].reduceRight(function(a,b, i, thisObj){ thisObj.length--; callCount++; return a + b; }, 0); callCount is 4 PASS [1, 2, 3, 4].reduceRight(function(a,b, i, thisObj){ thisObj.length = 1; callCount++; return a + b; }, 0); callCount is 2 PASS [1, 2, 3, 4].reduceRight(function(a,b, i, thisObj){ thisObj.length++; callCount++; return a + b; }, 0); callCount is 4 PASS toObject([1, 2, 3, 4]).reduceRight(function(a,b, i, thisObj){ thisObj.length--; callCount++; return a + b; }, 0); callCount is 4 PASS toObject([1, 2, 3, 4]).reduceRight(function(a,b, i, thisObj){ thisObj.length++; callCount++; return a + b; }, 0); callCount is 4 PASS [[0,1], [2,3], [4,5]].reduceRight(function(a,b) {return a.concat(b);}, []) is [4,5,2,3,0,1] PASS toObject([[0,1], [2,3], [4,5]]).reduceRight(function(a,b) {return a.concat(b);}, []) is [4,5,2,3,0,1] PASS toObject([0,1,2,3,4,5]).reduceRight(function(a,b,i) {return a.concat([i,b]);}, []) is [5,5,4,4,3,3,2,2,1,1,0,0] PASS toUnorderedObject([[0,1], [2,3], [4,5]]).reduceRight(function(a,b) {return a.concat(b);}, []) is [4,5,2,3,0,1] PASS toUnorderedObject([0,1,2,3,4,5]).reduceRight(function(a,b,i) {return a.concat([i,b]);}, []) is [5,5,4,4,3,3,2,2,1,1,0,0] PASS [0,1,2,3,4,5].reduceRight(function(a,b,i) {return a.concat([i,b]);}, []) is [5,5,4,4,3,3,2,2,1,1,0,0] PASS successfullyParsed is true TEST COMPLETE