description( "This test checks that functions on the array prototype correctly handle exceptions from property getters when called on non-array objects." ); function test(f) { var testObj = { length: 3 }; var propertyGetter = { get: (function() { throw true; }) } Object.defineProperty(testObj, 0, propertyGetter); Object.defineProperty(testObj, 1, propertyGetter); Object.defineProperty(testObj, 2, propertyGetter); try { f.call(testObj, function(){}); return false; } catch (e) { return e === true; } } // This test makes sense for these functions: (they should get all properties on the array) shouldBeTrue("test(Array.prototype.sort)"); shouldBeTrue("test(Array.prototype.every)"); shouldBeTrue("test(Array.prototype.some)"); shouldBeTrue("test(Array.prototype.forEach)"); shouldBeTrue("test(Array.prototype.map)"); shouldBeTrue("test(Array.prototype.filter)"); shouldBeTrue("test(Array.prototype.reduce)"); shouldBeTrue("test(Array.prototype.reduceRight)"); // Probably not testing much of anything in these cases, but make sure they don't crash! shouldBeTrue("test(Array.prototype.join)"); shouldBeTrue("test(Array.prototype.pop)"); shouldBeFalse("test(Array.prototype.push)"); shouldBeTrue("test(Array.prototype.reverse)"); shouldBeTrue("test(Array.prototype.shift)"); shouldBeTrue("test(Array.prototype.slice)"); shouldBeTrue("test(Array.prototype.splice)"); shouldBeTrue("test(Array.prototype.unshift)"); shouldBeTrue("test(Array.prototype.indexOf)"); shouldBeTrue("test(Array.prototype.lastIndexOf)");