| // Copyright 2016 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 |
| |
| // Disable the neutering protector. |
| %ArrayBufferNeuter(new ArrayBuffer(1024)); |
| |
| // ArrayBuffer |
| |
| function TestByteLength(param, expectedByteLength) { |
| var ab = new ArrayBuffer(param); |
| assertSame(expectedByteLength, ab.byteLength); |
| } |
| |
| function TestArrayBufferCreation() { |
| TestByteLength(1, 1); |
| TestByteLength(256, 256); |
| TestByteLength(2.567, 2); |
| |
| TestByteLength("abc", 0); |
| |
| TestByteLength(0, 0); |
| |
| assertThrows(function() { new ArrayBuffer(-10); }, RangeError); |
| assertThrows(function() { new ArrayBuffer(-2.567); }, RangeError); |
| |
| /* TODO[dslomov]: Reenable the test |
| assertThrows(function() { |
| var ab1 = new ArrayBuffer(0xFFFFFFFFFFFF) |
| }, RangeError); |
| */ |
| |
| var ab = new ArrayBuffer(); |
| assertSame(0, ab.byteLength); |
| assertEquals("[object ArrayBuffer]", |
| Object.prototype.toString.call(ab)); |
| } |
| |
| TestArrayBufferCreation(); |
| |
| function TestByteLengthNotWritable() { |
| var ab = new ArrayBuffer(1024); |
| assertSame(1024, ab.byteLength); |
| |
| assertThrows(function() { "use strict"; ab.byteLength = 42; }, TypeError); |
| } |
| |
| TestByteLengthNotWritable(); |
| |
| function TestSlice(expectedResultLen, initialLen, start, end) { |
| var ab = new ArrayBuffer(initialLen); |
| var a1 = new Uint8Array(ab); |
| for (var i = 0; i < a1.length; i++) { |
| a1[i] = 0xCA; |
| } |
| var slice = ab.slice(start, end); |
| assertSame(expectedResultLen, slice.byteLength); |
| var a2 = new Uint8Array(slice); |
| for (var i = 0; i < a2.length; i++) { |
| assertSame(0xCA, a2[i]); |
| } |
| } |
| |
| function TestArrayBufferSlice() { |
| var ab = new ArrayBuffer(1024); |
| var ab1 = ab.slice(512, 1024); |
| assertSame(512, ab1.byteLength); |
| |
| TestSlice(512, 1024, 512, 1024); |
| TestSlice(512, 1024, 512); |
| |
| TestSlice(0, 0, 1, 20); |
| TestSlice(100, 100, 0, 100); |
| TestSlice(100, 100, 0, 1000); |
| |
| TestSlice(0, 100, 5, 1); |
| |
| TestSlice(1, 100, -11, -10); |
| TestSlice(9, 100, -10, 99); |
| TestSlice(0, 100, -10, 80); |
| TestSlice(10, 100, 80, -10); |
| |
| TestSlice(10, 100, 90, "100"); |
| TestSlice(10, 100, "90", "100"); |
| |
| TestSlice(0, 100, 90, "abc"); |
| TestSlice(10, 100, "abc", 10); |
| |
| TestSlice(10, 100, 0.96, 10.96); |
| TestSlice(10, 100, 0.96, 10.01); |
| TestSlice(10, 100, 0.01, 10.01); |
| TestSlice(10, 100, 0.01, 10.96); |
| |
| TestSlice(10, 100, 90); |
| TestSlice(10, 100, -10); |
| } |
| |
| TestArrayBufferSlice(); |
| |
| // Typed arrays |
| |
| function TestTypedArray(constr, elementSize, typicalElement) { |
| assertSame(elementSize, constr.BYTES_PER_ELEMENT); |
| |
| var ab = new ArrayBuffer(256*elementSize); |
| |
| var a0 = new constr(30); |
| assertEquals("[object " + constr.name + "]", |
| Object.prototype.toString.call(a0)); |
| |
| assertTrue(ArrayBuffer.isView(a0)); |
| assertSame(elementSize, a0.BYTES_PER_ELEMENT); |
| assertSame(30, a0.length); |
| assertSame(30*elementSize, a0.byteLength); |
| assertSame(0, a0.byteOffset); |
| assertSame(30*elementSize, a0.buffer.byteLength); |
| |
| var aLen0 = new constr(0); |
| assertSame(elementSize, aLen0.BYTES_PER_ELEMENT); |
| assertSame(0, aLen0.length); |
| assertSame(0, aLen0.byteLength); |
| assertSame(0, aLen0.byteOffset); |
| assertSame(0, aLen0.buffer.byteLength); |
| |
| var aOverBufferLen0 = new constr(ab, 128*elementSize, 0); |
| assertSame(ab, aOverBufferLen0.buffer); |
| assertSame(elementSize, aOverBufferLen0.BYTES_PER_ELEMENT); |
| assertSame(0, aOverBufferLen0.length); |
| assertSame(0, aOverBufferLen0.byteLength); |
| assertSame(128*elementSize, aOverBufferLen0.byteOffset); |
| |
| var a1 = new constr(ab, 128*elementSize, 128); |
| assertSame(ab, a1.buffer); |
| assertSame(elementSize, a1.BYTES_PER_ELEMENT); |
| assertSame(128, a1.length); |
| assertSame(128*elementSize, a1.byteLength); |
| assertSame(128*elementSize, a1.byteOffset); |
| |
| |
| var a2 = new constr(ab, 64*elementSize, 128); |
| assertSame(ab, a2.buffer); |
| assertSame(elementSize, a2.BYTES_PER_ELEMENT); |
| assertSame(128, a2.length); |
| assertSame(128*elementSize, a2.byteLength); |
| assertSame(64*elementSize, a2.byteOffset); |
| |
| var a3 = new constr(ab, 192*elementSize); |
| assertSame(ab, a3.buffer); |
| assertSame(64, a3.length); |
| assertSame(64*elementSize, a3.byteLength); |
| assertSame(192*elementSize, a3.byteOffset); |
| |
| var a4 = new constr(ab); |
| assertSame(ab, a4.buffer); |
| assertSame(256, a4.length); |
| assertSame(256*elementSize, a4.byteLength); |
| assertSame(0, a4.byteOffset); |
| |
| |
| var i; |
| for (i = 0; i < 128; i++) { |
| a1[i] = typicalElement; |
| } |
| |
| for (i = 0; i < 128; i++) { |
| assertSame(typicalElement, a1[i]); |
| } |
| |
| for (i = 0; i < 64; i++) { |
| assertSame(0, a2[i]); |
| } |
| |
| for (i = 64; i < 128; i++) { |
| assertSame(typicalElement, a2[i]); |
| } |
| |
| for (i = 0; i < 64; i++) { |
| assertSame(typicalElement, a3[i]); |
| } |
| |
| for (i = 0; i < 128; i++) { |
| assertSame(0, a4[i]); |
| } |
| |
| for (i = 128; i < 256; i++) { |
| assertSame(typicalElement, a4[i]); |
| } |
| |
| var aAtTheEnd = new constr(ab, 256*elementSize); |
| assertSame(elementSize, aAtTheEnd.BYTES_PER_ELEMENT); |
| assertSame(0, aAtTheEnd.length); |
| assertSame(0, aAtTheEnd.byteLength); |
| assertSame(256*elementSize, aAtTheEnd.byteOffset); |
| |
| assertThrows(function () { new constr(ab, 257*elementSize); }, RangeError); |
| assertThrows( |
| function () { new constr(ab, 128*elementSize, 192); }, |
| RangeError); |
| |
| if (elementSize !== 1) { |
| assertThrows(function() { new constr(ab, 128*elementSize - 1, 10); }, |
| RangeError); |
| var unalignedArrayBuffer = new ArrayBuffer(10*elementSize + 1); |
| var goodArray = new constr(unalignedArrayBuffer, 0, 10); |
| assertSame(10, goodArray.length); |
| assertSame(10*elementSize, goodArray.byteLength); |
| assertThrows(function() { new constr(unalignedArrayBuffer)}, RangeError); |
| assertThrows(function() { new constr(unalignedArrayBuffer, 5*elementSize)}, |
| RangeError); |
| } |
| |
| var aFromUndef = new constr(); |
| assertSame(elementSize, aFromUndef.BYTES_PER_ELEMENT); |
| assertSame(0, aFromUndef.length); |
| assertSame(0*elementSize, aFromUndef.byteLength); |
| assertSame(0, aFromUndef.byteOffset); |
| assertSame(0*elementSize, aFromUndef.buffer.byteLength); |
| |
| var aFromNull = new constr(null); |
| assertSame(elementSize, aFromNull.BYTES_PER_ELEMENT); |
| assertSame(0, aFromNull.length); |
| assertSame(0*elementSize, aFromNull.byteLength); |
| assertSame(0, aFromNull.byteOffset); |
| assertSame(0*elementSize, aFromNull.buffer.byteLength); |
| |
| var aFromBool = new constr(true); |
| assertSame(elementSize, aFromBool.BYTES_PER_ELEMENT); |
| assertSame(1, aFromBool.length); |
| assertSame(1*elementSize, aFromBool.byteLength); |
| assertSame(0, aFromBool.byteOffset); |
| assertSame(1*elementSize, aFromBool.buffer.byteLength); |
| |
| var aFromString = new constr("30"); |
| assertSame(elementSize, aFromString.BYTES_PER_ELEMENT); |
| assertSame(30, aFromString.length); |
| assertSame(30*elementSize, aFromString.byteLength); |
| assertSame(0, aFromString.byteOffset); |
| assertSame(30*elementSize, aFromString.buffer.byteLength); |
| |
| assertThrows(function() { new constr(Symbol()); }, TypeError); |
| |
| var jsArray = []; |
| for (i = 0; i < 30; i++) { |
| jsArray.push(typicalElement); |
| } |
| var aFromArray = new constr(jsArray); |
| assertSame(elementSize, aFromArray.BYTES_PER_ELEMENT); |
| assertSame(30, aFromArray.length); |
| assertSame(30*elementSize, aFromArray.byteLength); |
| assertSame(0, aFromArray.byteOffset); |
| assertSame(30*elementSize, aFromArray.buffer.byteLength); |
| for (i = 0; i < 30; i++) { |
| assertSame(typicalElement, aFromArray[i]); |
| } |
| |
| var abLen0 = new ArrayBuffer(0); |
| var aOverAbLen0 = new constr(abLen0); |
| assertSame(abLen0, aOverAbLen0.buffer); |
| assertSame(elementSize, aOverAbLen0.BYTES_PER_ELEMENT); |
| assertSame(0, aOverAbLen0.length); |
| assertSame(0, aOverAbLen0.byteLength); |
| assertSame(0, aOverAbLen0.byteOffset); |
| |
| var aNoParam = new constr(); |
| assertSame(elementSize, aNoParam.BYTES_PER_ELEMENT); |
| assertSame(0, aNoParam.length); |
| assertSame(0, aNoParam.byteLength); |
| assertSame(0, aNoParam.byteOffset); |
| |
| var a = new constr(ab, 64*elementSize, 128); |
| assertEquals("[object " + constr.name + "]", |
| Object.prototype.toString.call(a)); |
| var desc = Object.getOwnPropertyDescriptor( |
| constr.prototype.__proto__, Symbol.toStringTag); |
| assertTrue(desc.configurable); |
| assertFalse(desc.enumerable); |
| assertFalse(!!desc.writable); |
| assertFalse(!!desc.set); |
| assertEquals("function", typeof desc.get); |
| |
| // Test that the constructor can be called with an iterable |
| function* gen() { for (var i = 0; i < 10; i++) yield i; } |
| var genArr = new constr(gen()); |
| assertEquals(10, genArr.length); |
| assertEquals(0, genArr[0]); |
| assertEquals(9, genArr[9]); |
| // Arrays can be converted to TypedArrays |
| genArr = new constr([1, 2, 3]); |
| assertEquals(3, genArr.length); |
| assertEquals(1, genArr[0]); |
| assertEquals(3, genArr[2]); |
| // Redefining Array.prototype[Symbol.iterator] still works |
| var arrayIterator = Array.prototype[Symbol.iterator]; |
| Array.prototype[Symbol.iterator] = gen; |
| genArr = new constr([1, 2, 3]); |
| assertEquals(10, genArr.length); |
| assertEquals(0, genArr[0]); |
| assertEquals(9, genArr[9]); |
| Array.prototype[Symbol.iterator] = arrayIterator; |
| // Other array-like things can be made into a TypedArray |
| var myObject = { 0: 5, 1: 6, length: 2 }; |
| genArr = new constr(myObject); |
| assertEquals(2, genArr.length); |
| assertEquals(5, genArr[0]); |
| assertEquals(6, genArr[1]); |
| // Iterator takes precedence over array-like, and the property |
| // is read only once. |
| var iteratorReadCount = 0; |
| Object.defineProperty(myObject, Symbol.iterator, { |
| get: function() { iteratorReadCount++; return gen; } |
| }); |
| genArr = new constr(myObject); |
| assertEquals(10, genArr.length); |
| assertEquals(0, genArr[0]); |
| assertEquals(9, genArr[9]); |
| assertEquals(1, iteratorReadCount); |
| } |
| |
| TestTypedArray(Uint8Array, 1, 0xFF); |
| TestTypedArray(Int8Array, 1, -0x7F); |
| TestTypedArray(Uint16Array, 2, 0xFFFF); |
| TestTypedArray(Int16Array, 2, -0x7FFF); |
| TestTypedArray(Uint32Array, 4, 0xFFFFFFFF); |
| TestTypedArray(Int32Array, 4, -0x7FFFFFFF); |
| TestTypedArray(Float32Array, 4, 0.5); |
| TestTypedArray(Float64Array, 8, 0.5); |
| TestTypedArray(Uint8ClampedArray, 1, 0xFF); |
| |
| function SubarrayTestCase(constructor, item, expectedResultLen, expectedStartIndex, |
| initialLen, start, end) { |
| var a = new constructor(initialLen); |
| var s = a.subarray(start, end); |
| assertSame(constructor, s.constructor); |
| assertSame(expectedResultLen, s.length); |
| if (s.length > 0) { |
| s[0] = item; |
| assertSame(item, a[expectedStartIndex]); |
| } |
| } |
| |
| function TestSubArray(constructor, item) { |
| SubarrayTestCase(constructor, item, 512, 512, 1024, 512, 1024); |
| SubarrayTestCase(constructor, item, 512, 512, 1024, 512); |
| |
| SubarrayTestCase(constructor, item, 0, undefined, 0, 1, 20); |
| SubarrayTestCase(constructor, item, 100, 0, 100, 0, 100); |
| SubarrayTestCase(constructor, item, 100, 0, 100, 0, 1000); |
| SubarrayTestCase(constructor, item, 0, undefined, 100, 5, 1); |
| |
| SubarrayTestCase(constructor, item, 1, 89, 100, -11, -10); |
| SubarrayTestCase(constructor, item, 9, 90, 100, -10, 99); |
| SubarrayTestCase(constructor, item, 0, undefined, 100, -10, 80); |
| SubarrayTestCase(constructor, item, 10,80, 100, 80, -10); |
| |
| SubarrayTestCase(constructor, item, 10,90, 100, 90, "100"); |
| SubarrayTestCase(constructor, item, 10,90, 100, "90", "100"); |
| |
| SubarrayTestCase(constructor, item, 0, undefined, 100, 90, "abc"); |
| SubarrayTestCase(constructor, item, 10,0, 100, "abc", 10); |
| |
| SubarrayTestCase(constructor, item, 10,0, 100, 0.96, 10.96); |
| SubarrayTestCase(constructor, item, 10,0, 100, 0.96, 10.01); |
| SubarrayTestCase(constructor, item, 10,0, 100, 0.01, 10.01); |
| SubarrayTestCase(constructor, item, 10,0, 100, 0.01, 10.96); |
| |
| |
| SubarrayTestCase(constructor, item, 10,90, 100, 90); |
| SubarrayTestCase(constructor, item, 10,90, 100, -10); |
| |
| var method = constructor.prototype.subarray; |
| method.call(new constructor(100), 0, 100); |
| var o = {}; |
| assertThrows(function() { method.call(o, 0, 100); }, TypeError); |
| } |
| |
| TestSubArray(Uint8Array, 0xFF); |
| TestSubArray(Int8Array, -0x7F); |
| TestSubArray(Uint16Array, 0xFFFF); |
| TestSubArray(Int16Array, -0x7FFF); |
| TestSubArray(Uint32Array, 0xFFFFFFFF); |
| TestSubArray(Int32Array, -0x7FFFFFFF); |
| TestSubArray(Float32Array, 0.5); |
| TestSubArray(Float64Array, 0.5); |
| TestSubArray(Uint8ClampedArray, 0xFF); |
| |
| function TestTypedArrayOutOfRange(constructor, value, result) { |
| var a = new constructor(1); |
| a[0] = value; |
| assertSame(result, a[0]); |
| } |
| |
| TestTypedArrayOutOfRange(Uint8Array, 0x1FA, 0xFA); |
| TestTypedArrayOutOfRange(Uint8Array, -1, 0xFF); |
| |
| TestTypedArrayOutOfRange(Int8Array, 0x1FA, 0x7A - 0x80); |
| |
| TestTypedArrayOutOfRange(Uint16Array, 0x1FFFA, 0xFFFA); |
| TestTypedArrayOutOfRange(Uint16Array, -1, 0xFFFF); |
| TestTypedArrayOutOfRange(Int16Array, 0x1FFFA, 0x7FFA - 0x8000); |
| |
| TestTypedArrayOutOfRange(Uint32Array, 0x1FFFFFFFA, 0xFFFFFFFA); |
| TestTypedArrayOutOfRange(Uint32Array, -1, 0xFFFFFFFF); |
| TestTypedArrayOutOfRange(Int32Array, 0x1FFFFFFFA, 0x7FFFFFFA - 0x80000000); |
| |
| TestTypedArrayOutOfRange(Uint8ClampedArray, 0x1FA, 0xFF); |
| TestTypedArrayOutOfRange(Uint8ClampedArray, -1, 0); |
| |
| var typedArrayConstructors = [ |
| Uint8Array, |
| Int8Array, |
| Uint16Array, |
| Int16Array, |
| Uint32Array, |
| Int32Array, |
| Uint8ClampedArray, |
| Float32Array, |
| Float64Array]; |
| |
| function TestPropertyTypeChecks(constructor) { |
| function CheckProperty(name) { |
| assertThrows(function() { 'use strict'; new constructor(10)[name] = 0; }) |
| var d = Object.getOwnPropertyDescriptor(constructor.prototype.__proto__, name); |
| var o = {}; |
| assertThrows(function() {d.get.call(o);}, TypeError); |
| for (var i = 0; i < typedArrayConstructors.length; i++) { |
| var ctor = typedArrayConstructors[i]; |
| var a = new ctor(10); |
| d.get.call(a); // shouldn't throw |
| } |
| } |
| |
| CheckProperty("buffer"); |
| CheckProperty("byteOffset"); |
| CheckProperty("byteLength"); |
| CheckProperty("length"); |
| } |
| |
| for(i = 0; i < typedArrayConstructors.length; i++) { |
| TestPropertyTypeChecks(typedArrayConstructors[i]); |
| } |
| |
| |
| function TestTypedArraySet() { |
| // Test array.set in different combinations. |
| |
| function assertArrayPrefix(expected, array) { |
| for (var i = 0; i < expected.length; ++i) { |
| assertEquals(expected[i], array[i]); |
| } |
| } |
| |
| var a11 = new Int16Array([1, 2, 3, 4, 0, -1]) |
| var a12 = new Uint16Array(15) |
| a12.set(a11, 3) |
| assertArrayPrefix([0, 0, 0, 1, 2, 3, 4, 0, 0xffff, 0, 0], a12) |
| assertThrows(function(){ a11.set(a12) }) |
| |
| var a21 = [1, undefined, 10, NaN, 0, -1, {valueOf: function() {return 3}}] |
| var a22 = new Int32Array(12) |
| a22.set(a21, 2) |
| assertArrayPrefix([0, 0, 1, 0, 10, 0, 0, -1, 3, 0], a22) |
| |
| var a31 = new Float32Array([2, 4, 6, 8, 11, NaN, 1/0, -3]) |
| var a32 = a31.subarray(2, 6) |
| a31.set(a32, 4) |
| assertArrayPrefix([2, 4, 6, 8, 6, 8, 11, NaN], a31) |
| assertArrayPrefix([6, 8, 6, 8], a32) |
| |
| var a4 = new Uint8ClampedArray([3,2,5,6]) |
| a4.set(a4) |
| assertArrayPrefix([3, 2, 5, 6], a4) |
| |
| // Cases with overlapping backing store but different element sizes. |
| var b = new ArrayBuffer(4) |
| var a5 = new Int16Array(b) |
| var a50 = new Int8Array(b) |
| var a51 = new Int8Array(b, 0, 2) |
| var a52 = new Int8Array(b, 1, 2) |
| var a53 = new Int8Array(b, 2, 2) |
| |
| a5.set([0x5050, 0x0a0a]) |
| assertArrayPrefix([0x50, 0x50, 0x0a, 0x0a], a50) |
| assertArrayPrefix([0x50, 0x50], a51) |
| assertArrayPrefix([0x50, 0x0a], a52) |
| assertArrayPrefix([0x0a, 0x0a], a53) |
| |
| a50.set([0x50, 0x50, 0x0a, 0x0a]) |
| a51.set(a5) |
| assertArrayPrefix([0x50, 0x0a, 0x0a, 0x0a], a50) |
| |
| a50.set([0x50, 0x50, 0x0a, 0x0a]) |
| a52.set(a5) |
| assertArrayPrefix([0x50, 0x50, 0x0a, 0x0a], a50) |
| |
| a50.set([0x50, 0x50, 0x0a, 0x0a]) |
| a53.set(a5) |
| assertArrayPrefix([0x50, 0x50, 0x50, 0x0a], a50) |
| |
| a50.set([0x50, 0x51, 0x0a, 0x0b]) |
| a5.set(a51) |
| assertArrayPrefix([0x0050, 0x0051], a5) |
| |
| a50.set([0x50, 0x51, 0x0a, 0x0b]) |
| a5.set(a52) |
| assertArrayPrefix([0x0051, 0x000a], a5) |
| |
| a50.set([0x50, 0x51, 0x0a, 0x0b]) |
| a5.set(a53) |
| assertArrayPrefix([0x000a, 0x000b], a5) |
| |
| // Mixed types of same size. |
| var a61 = new Float32Array([1.2, 12.3]) |
| var a62 = new Int32Array(2) |
| a62.set(a61) |
| assertArrayPrefix([1, 12], a62) |
| a61.set(a62) |
| assertArrayPrefix([1, 12], a61) |
| |
| // Invalid source |
| var a = new Uint16Array(50); |
| var expected = []; |
| for (i = 0; i < 50; i++) { |
| a[i] = i; |
| expected.push(i); |
| } |
| a.set({}); |
| assertArrayPrefix(expected, a); |
| assertThrows(function() { a.set.call({}) }, TypeError); |
| assertThrows(function() { a.set.call([]) }, TypeError); |
| |
| assertThrows(function() { a.set(0); }, TypeError); |
| assertThrows(function() { a.set(0, 1); }, TypeError); |
| |
| assertEquals(1, a.set.length); |
| } |
| |
| TestTypedArraySet(); |
| |
| function TestTypedArraysWithIllegalIndices() { |
| var a = new Int32Array(100); |
| |
| a[-10] = 10; |
| assertEquals(undefined, a[-10]); |
| a["-10"] = 10; |
| assertEquals(undefined, a["-10"]); |
| |
| var s = " -10"; |
| a[s] = 10; |
| assertEquals(10, a[s]); |
| var s1 = " -10 "; |
| a[s] = 10; |
| assertEquals(10, a[s]); |
| |
| a["-1e2"] = 10; |
| assertEquals(10, a["-1e2"]); |
| assertEquals(undefined, a[-1e2]); |
| |
| a["-0"] = 256; |
| var s2 = " -0"; |
| a[s2] = 255; |
| assertEquals(undefined, a["-0"]); |
| assertEquals(255, a[s2]); |
| assertEquals(0, a[-0]); |
| |
| a[-Infinity] = 50; |
| assertEquals(undefined, a[-Infinity]); |
| |
| a[1.5] = 10; |
| assertEquals(undefined, a[1.5]); |
| var nan = Math.sqrt(-1); |
| a[nan] = 5; |
| assertEquals(undefined, a[nan]); |
| |
| var x = 0; |
| var y = -0; |
| assertEquals(Infinity, 1/x); |
| assertEquals(-Infinity, 1/y); |
| a[x] = 5; |
| a[y] = 27; |
| assertEquals(27, a[x]); |
| assertEquals(27, a[y]); |
| } |
| |
| TestTypedArraysWithIllegalIndices(); |
| |
| function TestTypedArraysWithIllegalIndicesStrict() { |
| 'use strict'; |
| var a = new Int32Array(100); |
| |
| a[-10] = 10; |
| assertEquals(undefined, a[-10]); |
| a["-10"] = 10; |
| assertEquals(undefined, a["-10"]); |
| |
| var s = " -10"; |
| a[s] = 10; |
| assertEquals(10, a[s]); |
| var s1 = " -10 "; |
| a[s] = 10; |
| assertEquals(10, a[s]); |
| |
| a["-1e2"] = 10; |
| assertEquals(10, a["-1e2"]); |
| assertEquals(undefined, a[-1e2]); |
| |
| a["-0"] = 256; |
| var s2 = " -0"; |
| a[s2] = 255; |
| assertEquals(undefined, a["-0"]); |
| assertEquals(255, a[s2]); |
| assertEquals(0, a[-0]); |
| |
| /* Chromium bug: 424619 |
| * a[-Infinity] = 50; |
| * assertEquals(undefined, a[-Infinity]); |
| */ |
| a[1.5] = 10; |
| assertEquals(undefined, a[1.5]); |
| var nan = Math.sqrt(-1); |
| a[nan] = 5; |
| assertEquals(undefined, a[nan]); |
| |
| var x = 0; |
| var y = -0; |
| assertEquals(Infinity, 1/x); |
| assertEquals(-Infinity, 1/y); |
| a[x] = 5; |
| a[y] = 27; |
| assertEquals(27, a[x]); |
| assertEquals(27, a[y]); |
| } |
| |
| TestTypedArraysWithIllegalIndicesStrict(); |
| |
| // DataView |
| function TestDataViewConstructor() { |
| var ab = new ArrayBuffer(256); |
| |
| var d1 = new DataView(ab, 1, 255); |
| assertTrue(ArrayBuffer.isView(d1)); |
| assertSame(ab, d1.buffer); |
| assertSame(1, d1.byteOffset); |
| assertSame(255, d1.byteLength); |
| |
| var d2 = new DataView(ab, 2); |
| assertSame(ab, d2.buffer); |
| assertSame(2, d2.byteOffset); |
| assertSame(254, d2.byteLength); |
| |
| var d3 = new DataView(ab); |
| assertSame(ab, d3.buffer); |
| assertSame(0, d3.byteOffset); |
| assertSame(256, d3.byteLength); |
| |
| var d3a = new DataView(ab, 1, 0); |
| assertSame(ab, d3a.buffer); |
| assertSame(1, d3a.byteOffset); |
| assertSame(0, d3a.byteLength); |
| |
| var d3b = new DataView(ab, 256, 0); |
| assertSame(ab, d3b.buffer); |
| assertSame(256, d3b.byteOffset); |
| assertSame(0, d3b.byteLength); |
| |
| var d3c = new DataView(ab, 256); |
| assertSame(ab, d3c.buffer); |
| assertSame(256, d3c.byteOffset); |
| assertSame(0, d3c.byteLength); |
| |
| var d4 = new DataView(ab, 1, 3.1415926); |
| assertSame(ab, d4.buffer); |
| assertSame(1, d4.byteOffset); |
| assertSame(3, d4.byteLength); |
| |
| |
| // error cases |
| assertThrows(function() { new DataView(ab, -1); }, RangeError); |
| assertThrows(function() { new DataView(); }, TypeError); |
| assertThrows(function() { new DataView([]); }, TypeError); |
| assertThrows(function() { new DataView(ab, 257); }, RangeError); |
| assertThrows(function() { new DataView(ab, 1, 1024); }, RangeError); |
| } |
| |
| TestDataViewConstructor(); |
| |
| function TestDataViewPropertyTypeChecks() { |
| var a = new DataView(new ArrayBuffer(10)); |
| function CheckProperty(name) { |
| var d = Object.getOwnPropertyDescriptor(DataView.prototype, name); |
| var o = {} |
| assertThrows(function() {d.get.call(o);}, TypeError); |
| d.get.call(a); // shouldn't throw |
| } |
| |
| CheckProperty("buffer"); |
| CheckProperty("byteOffset"); |
| CheckProperty("byteLength"); |
| |
| function CheckGetSetLength(name) { |
| assertEquals(1, DataView.prototype["get" + name].length); |
| assertEquals(2, DataView.prototype["set" + name].length); |
| } |
| CheckGetSetLength("Int8"); |
| CheckGetSetLength("Uint8"); |
| CheckGetSetLength("Int16"); |
| CheckGetSetLength("Uint16"); |
| CheckGetSetLength("Int32"); |
| CheckGetSetLength("Uint32"); |
| CheckGetSetLength("Float32"); |
| CheckGetSetLength("Float64"); |
| } |
| |
| |
| TestDataViewPropertyTypeChecks(); |
| |
| |
| function TestDataViewToStringTag() { |
| var a = new DataView(new ArrayBuffer(10)); |
| assertEquals("[object DataView]", Object.prototype.toString.call(a)); |
| var desc = Object.getOwnPropertyDescriptor( |
| DataView.prototype, Symbol.toStringTag); |
| assertTrue(desc.configurable); |
| assertFalse(desc.enumerable); |
| assertFalse(desc.writable); |
| assertEquals("DataView", desc.value); |
| } |
| |
| |
| // General tests for properties |
| |
| // Test property attribute [[Enumerable]] |
| function TestEnumerable(func, obj) { |
| function props(x) { |
| var array = []; |
| for (var p in x) array.push(p); |
| return array.sort(); |
| } |
| assertArrayEquals([], props(func)); |
| assertArrayEquals([], props(func.prototype)); |
| if (obj) |
| assertArrayEquals([], props(obj)); |
| } |
| TestEnumerable(ArrayBuffer, new ArrayBuffer()); |
| for(i = 0; i < typedArrayConstructors.length; i++) { |
| TestEnumerable(typedArrayConstructors[i]); |
| } |
| TestEnumerable(DataView, new DataView(new ArrayBuffer())); |
| |
| // Test arbitrary properties on ArrayBuffer |
| function TestArbitrary(m) { |
| function TestProperty(map, property, value) { |
| map[property] = value; |
| assertEquals(value, map[property]); |
| } |
| for (var i = 0; i < 20; i++) { |
| TestProperty(m, 'key' + i, 'val' + i); |
| TestProperty(m, 'foo' + i, 'bar' + i); |
| } |
| } |
| TestArbitrary(new ArrayBuffer(256)); |
| for(i = 0; i < typedArrayConstructors.length; i++) { |
| TestArbitrary(new typedArrayConstructors[i](10)); |
| } |
| TestArbitrary(new DataView(new ArrayBuffer(256))); |
| |
| |
| // Test direct constructor call |
| assertThrows(function() { ArrayBuffer(); }, TypeError); |
| assertThrows(function() { DataView(new ArrayBuffer()); }, TypeError); |
| |
| function TestNonConfigurableProperties(constructor) { |
| var arr = new constructor([100]) |
| assertFalse(Object.getOwnPropertyDescriptor(arr,"0").configurable) |
| assertFalse(delete arr[0]) |
| } |
| |
| for(i = 0; i < typedArrayConstructors.length; i++) { |
| TestNonConfigurableProperties(typedArrayConstructors[i]); |
| } |
