diff --git a/test/built-ins/TypedArrays/typedarray-arg-detached-when-species-retrieved-different-type.js b/test/built-ins/TypedArrays/typedarray-arg-detached-when-species-retrieved-different-type.js new file mode 100644 index 0000000000000000000000000000000000000000..8ee2fba54bc195dcafe393b24bc22652e86493ce --- /dev/null +++ b/test/built-ins/TypedArrays/typedarray-arg-detached-when-species-retrieved-different-type.js @@ -0,0 +1,61 @@ +// Copyright (C) 2017 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-typedarray-typedarray +description: > + When a TypedArray is created from another TypedArray with a different element-type + and SpeciesConstructor detaches the source buffer, AllocateArrayBuffer is still + executed. +info: | + 22.2.4.3 TypedArray ( typedArray ) + + ... + 16. If IsSharedArrayBuffer(srcData) is false, then + a. Let bufferConstructor be ? SpeciesConstructor(srcData, %ArrayBuffer%). + ... + 18. If SameValue(elementType, srcType) is true, then + ... + 19. Else, + a. Let data be ? AllocateArrayBuffer(bufferConstructor, byteLength). + b. If IsDetachedBuffer(srcData) is true, throw a TypeError exception. + ... + + 24.1.1.1 AllocateArrayBuffer ( constructor, byteLength ) + + 1. Let obj be ? OrdinaryCreateFromConstructor(constructor, "%ArrayBufferPrototype%", + « [[ArrayBufferData]], [[ArrayBufferByteLength]] »). + ... +includes: [testTypedArray.js, detachArrayBuffer.js] +features: [TypedArray, Symbol.species] +---*/ + +testWithTypedArrayConstructors(function(TA) { + var speciesCallCount = 0; + var bufferConstructor = Object.defineProperty({}, Symbol.species, { + get: function() { + speciesCallCount += 1; + $DETACHBUFFER(ta.buffer); + return speciesConstructor; + } + }); + + var prototypeCallCount = 0; + var speciesConstructor = Object.defineProperty(function(){}.bind(), "prototype", { + get: function() { + prototypeCallCount += 1; + return null; + } + }); + + var ta = new TA(0); + ta.buffer.constructor = bufferConstructor; + + assert.throws(TypeError, function() { + var targetType = TA !== Int32Array ? Int32Array : Uint32Array; + new targetType(ta); + }, "TypeError thrown for detached source buffer"); + + assert.sameValue(speciesCallCount, 1, "@@species getter called once"); + assert.sameValue(prototypeCallCount, 1, "prototype getter called once"); +}); diff --git a/test/built-ins/TypedArrays/typedarray-arg-detached-when-species-retrieved-same-type.js b/test/built-ins/TypedArrays/typedarray-arg-detached-when-species-retrieved-same-type.js new file mode 100644 index 0000000000000000000000000000000000000000..978f42af64be0e5e280840bfa0670894f2af8ac3 --- /dev/null +++ b/test/built-ins/TypedArrays/typedarray-arg-detached-when-species-retrieved-same-type.js @@ -0,0 +1,64 @@ +// Copyright (C) 2017 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-typedarray-typedarray +description: > + When a TypedArray is created from another TypedArray with the same element-type + and SpeciesConstructor detaches the source buffer, AllocateArrayBuffer is still + executed. +info: | + 22.2.4.3 TypedArray ( typedArray ) + + ... + 16. If IsSharedArrayBuffer(srcData) is false, then + a. Let bufferConstructor be ? SpeciesConstructor(srcData, %ArrayBuffer%). + ... + 18. If SameValue(elementType, srcType) is true, then + a. Let data be ? CloneArrayBuffer(srcData, srcByteOffset, byteLength, bufferConstructor). + ... + + 24.1.1.4 CloneArrayBuffer ( srcBuffer, srcByteOffset, srcLength, cloneConstructor ) + + ... + 3. Let targetBuffer be ? AllocateArrayBuffer(cloneConstructor, srcLength). + 4. If IsDetachedBuffer(srcBuffer) is true, throw a TypeError exception. + ... + + 24.1.1.1 AllocateArrayBuffer ( constructor, byteLength ) + + 1. Let obj be ? OrdinaryCreateFromConstructor(constructor, "%ArrayBufferPrototype%", + « [[ArrayBufferData]], [[ArrayBufferByteLength]] »). + ... +includes: [testTypedArray.js, detachArrayBuffer.js] +features: [TypedArray, Symbol.species] +---*/ + +testWithTypedArrayConstructors(function(TA) { + var speciesCallCount = 0; + var bufferConstructor = Object.defineProperty({}, Symbol.species, { + get: function() { + speciesCallCount += 1; + $DETACHBUFFER(ta.buffer); + return speciesConstructor; + } + }); + + var prototypeCallCount = 0; + var speciesConstructor = Object.defineProperty(function(){}.bind(), "prototype", { + get: function() { + prototypeCallCount += 1; + return null; + } + }); + + var ta = new TA(0); + ta.buffer.constructor = bufferConstructor; + + assert.throws(TypeError, function() { + new TA(ta); + }, "TypeError thrown for detached source buffer"); + + assert.sameValue(speciesCallCount, 1, "@@species getter called once"); + assert.sameValue(prototypeCallCount, 1, "prototype getter called once"); +});