| // Copyright 2015 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --allow-natives-syntax |
| |
| var typedArrayConstructors = [ |
| Uint8Array, |
| Int8Array, |
| Uint16Array, |
| Int16Array, |
| Uint32Array, |
| Int32Array, |
| Uint8ClampedArray, |
| Float32Array, |
| Float64Array]; |
| |
| function CheckEachTypedArray(fn) { |
| typedArrayConstructors.forEach(fn); |
| } |
| |
| CheckEachTypedArray(function copyWithinArity(constructor) { |
| assertEquals(new constructor([]).copyWithin.length, 2); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinTargetAndStart(constructor) { |
| // works with two arguments |
| assertArrayEquals([4, 5, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(0, 3)); |
| assertArrayEquals([1, 4, 5, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(1, 3)); |
| assertArrayEquals([1, 3, 4, 5, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(1, 2)); |
| assertArrayEquals([1, 2, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(2, 2)); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinTargetStartAndEnd(constructor) { |
| // works with three arguments |
| assertArrayEquals(new constructor([1, 2, 3, 4, 5]).copyWithin(0, 3, 4), |
| [4, 2, 3, 4, 5]); |
| assertArrayEquals(new constructor([1, 2, 3, 4, 5]).copyWithin(1, 3, 4), |
| [1, 4, 3, 4, 5]); |
| assertArrayEquals(new constructor([1, 2, 3, 4, 5]).copyWithin(1, 2, 4), |
| [1, 3, 4, 4, 5]); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinNegativeRelativeOffsets(constructor) { |
| // works with negative arguments |
| assertArrayEquals([4, 5, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(0, -2)); |
| assertArrayEquals([4, 2, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(0, -2, -1)); |
| assertArrayEquals([1, 3, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(-4, -3, -2)); |
| assertArrayEquals([1, 3, 4, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(-4, -3, -1)); |
| assertArrayEquals([1, 3, 4, 5, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(-4, -3)); |
| // test with arguments equal to -this.length |
| assertArrayEquals([1, 2, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(-5, 0)); |
| }); |
| |
| |
| CheckEachTypedArray(function mustBeTypedArray(constructor) { |
| // throws on non-TypedArray values |
| assertThrows(function() { |
| return constructor.prototype.copyWithin.call(null, 0, 3); |
| }, TypeError); |
| assertThrows(function() { |
| return constructor.prototype.copyWithin.call(undefined, 0, 3); |
| }, TypeError); |
| assertThrows(function() { |
| return constructor.prototype.copyWithin.call(34, 0, 3); |
| }, TypeError); |
| assertThrows(function() { |
| return constructor.prototype.copyWithin.call([1, 2, 3, 4, 5], 0, 3); |
| }, TypeError); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinStartLessThanTarget(constructor) { |
| // test with target > start on 2 arguments |
| assertArrayEquals([1, 2, 3, 1, 2], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(3, 0)); |
| |
| // test with target > start on 3 arguments |
| assertArrayEquals([1, 2, 3, 1, 2], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(3, 0, 4)); |
| }); |
| |
| CheckEachTypedArray(function copyWithinNonIntegerRelativeOffsets(constructor) { |
| // test on fractional arguments |
| assertArrayEquals([4, 5, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(0.2, 3.9)); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinNegativeZeroTarget(constructor) { |
| // test with -0 |
| assertArrayEquals([4, 5, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(-0, 3)); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinTargetOutsideStart(constructor) { |
| // test with arguments more than this.length |
| assertArrayEquals([1, 2, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(0, 7)); |
| |
| // test with arguments less than -this.length |
| assertArrayEquals([1, 2, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(-7, 0)); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinEmptyArray(constructor) { |
| // test on empty array |
| assertArrayEquals([], new constructor([]).copyWithin(0, 3)); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinTargetCutOff(constructor) { |
| // test with target range being shorter than end - start |
| assertArrayEquals([1, 2, 2, 3, 4], [1, 2, 3, 4, 5].copyWithin(2, 1, 4)); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinOverlappingRanges(constructor) { |
| // test overlapping ranges |
| var arr = [1, 2, 3, 4, 5]; |
| arr.copyWithin(2, 1, 4); |
| assertArrayEquals([1, 2, 2, 2, 3], arr.copyWithin(2, 1, 4)); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinDefaultEnd(constructor) { |
| // undefined as third argument |
| assertArrayEquals([4, 5, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(0, 3, undefined)); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinLargeArray(constructor) { |
| var large = 10000; |
| |
| // test on a large array |
| var arr = new constructor(large); |
| assertArrayEquals(arr, arr.copyWithin(45, 9000)); |
| |
| var expected = new Array(large); |
| // test on numbers |
| for (var i = 0; i < large; i++) { |
| arr[i] = Math.random() * 100; // May be cast to an int |
| expected[i] = arr[i]; |
| if (i >= 9000) { |
| expected[(i - 9000) + 45] = arr[i]; |
| } |
| } |
| assertArrayEquals(expected, arr.copyWithin(45, 9000)); |
| |
| // test array length remains same |
| assertEquals(large, arr.length); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinNullEnd(constructor) { |
| // test null on third argument is converted to +0 |
| assertArrayEquals([1, 2, 3, 4, 5], |
| new constructor([1, 2, 3, 4, 5]).copyWithin(0, 3, null)); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinMinusInfinityTarget(constructor) { |
| var arr = new constructor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| var expected = [6, 7, 8, 9, 10, 6, 7, 8, 9, 10]; |
| |
| assertArrayEquals(expected, arr.copyWithin(-Infinity, 5)); |
| assertEquals(10, arr.length); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinPositiveInfinityTarget(constructor) { |
| var arr = new constructor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| var expected = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; |
| |
| assertArrayEquals(expected, arr.copyWithin(+Infinity, 5)); |
| assertEquals(10, arr.length); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinMinusInfinityStart(constructor) { |
| var arr = new constructor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| var expected = [1, 2, 3, 4, 5, 1, 2, 3, 4, 5]; |
| |
| assertArrayEquals(expected, arr.copyWithin(5, -Infinity)); |
| assertEquals(10, arr.length); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinPositiveInfinityStart(constructor) { |
| var arr = new constructor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| var expected = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; |
| |
| assertArrayEquals(expected, arr.copyWithin(5, +Infinity)); |
| assertEquals(10, arr.length); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinMinusInfinityEnd(constructor) { |
| var arr = new constructor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| var expected = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; |
| |
| assertArrayEquals(expected, arr.copyWithin(5, 0, -Infinity)); |
| assertEquals(10, arr.length); |
| }); |
| |
| |
| CheckEachTypedArray(function copyWithinPositiveInfinityEnd(constructor) { |
| var arr = new constructor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| var expected = [1, 2, 3, 4, 5, 1, 2, 3, 4, 5]; |
| |
| assertArrayEquals(expected, arr.copyWithin(5, 0, +Infinity)); |
| assertEquals(10, arr.length); |
| }); |
| |
| CheckEachTypedArray(function parametersNotCalledIfDetached(constructor) { |
| var tmp = { |
| [Symbol.toPrimitive]() { |
| assertUnreachable("Parameter should not be processed when " + |
| "array.[[ViewedArrayBuffer]] is detached."); |
| return 0; |
| } |
| }; |
| |
| var array = new constructor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); |
| %ArrayBufferDetach(array.buffer); |
| |
| assertThrows(() => array.copyWithin(tmp, tmp, tmp), TypeError); |
| assertEquals(0, array.length, "array.[[ViewedArrayBuffer]] is detached"); |
| }); |