mirror of https://github.com/tc39/test262.git
Add tests for typedArrays extensibility
Ref: https://github.com/tc39/test262/pull/536#issuecomment-200455389
This commit is contained in:
Leonardo Balter
Mike Pennisi
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c4086508db
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755b0d6117
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-typedarray-buffer-byteoffset-length
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description: >
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The new typedArray instance from a buffer argument is extensible
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info: >
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22.2.4.5 TypedArray ( buffer [ , byteOffset [ , length ] ] )
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...
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4. Let O be ? AllocateTypedArray(constructorName, NewTarget,
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"%TypedArrayPrototype%").
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...
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22.2.4.2.1 Runtime Semantics: AllocateTypedArray (constructorName, newTarget,
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defaultProto [ , length ])
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...
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2. Let obj be IntegerIndexedObjectCreate(proto, « [[ViewedArrayBuffer]],
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[[TypedArrayName]], [[ByteLength]], [[ByteOffset]], [[ArrayLength]] »).
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...
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9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList)
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...
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11. Set the [[Extensible]] internal slot of A to true.
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...
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includes: [testTypedArray.js]
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---*/
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testWithTypedArrayConstructors(function(TA) {
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var buffer = new ArrayBuffer(8);
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var sample = new TA(buffer);
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assert(Object.isExtensible(sample));
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});
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-typedarray-length
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description: >
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The new typedArray instance from a length argument is extensible
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info: >
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22.2.4.2 TypedArray ( length )
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This description applies only if the TypedArray function is called with at
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least one argument and the Type of the first argument is not Object.
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...
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8. Return ? AllocateTypedArray(constructorName, NewTarget,
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%TypedArrayPrototype%, elementLength).
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22.2.4.2.1 Runtime Semantics: AllocateTypedArray (constructorName, newTarget,
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defaultProto [ , length ])
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...
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2. Let obj be IntegerIndexedObjectCreate(proto, « [[ViewedArrayBuffer]],
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[[TypedArrayName]], [[ByteLength]], [[ByteOffset]], [[ArrayLength]] »).
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...
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9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList)
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...
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11. Set the [[Extensible]] internal slot of A to true.
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...
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includes: [testTypedArray.js]
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---*/
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testWithTypedArrayConstructors(function(TA) {
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var sample = new TA(4);
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assert(Object.isExtensible(sample));
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});
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-typedarray
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description: >
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The new typedArray instance is extensible
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info: >
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22.2.4.1 TypedArray( )
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This description applies only if the TypedArray function is called with no
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arguments.
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...
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3. Return ? AllocateTypedArray(constructorName, NewTarget,
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%TypedArrayPrototype%, 0).
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22.2.4.2.1 Runtime Semantics: AllocateTypedArray (constructorName, newTarget,
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defaultProto [ , length ])
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...
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2. Let obj be IntegerIndexedObjectCreate(proto, « [[ViewedArrayBuffer]],
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[[TypedArrayName]], [[ByteLength]], [[ByteOffset]], [[ArrayLength]] »).
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...
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9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList)
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...
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11. Set the [[Extensible]] internal slot of A to true.
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...
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includes: [testTypedArray.js]
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---*/
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testWithTypedArrayConstructors(function(TA) {
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var sample = new TA();
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assert(Object.isExtensible(sample));
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});
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-typedarray-object
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description: >
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The new typedArray instance from an object argument is extensible
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info: >
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22.2.4.4 TypedArray ( object )
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...
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4. Let O be ? AllocateTypedArray(constructorName, NewTarget,
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"%TypedArrayPrototype%").
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...
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22.2.4.2.1 Runtime Semantics: AllocateTypedArray (constructorName, newTarget,
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defaultProto [ , length ])
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...
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2. Let obj be IntegerIndexedObjectCreate(proto, « [[ViewedArrayBuffer]],
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[[TypedArrayName]], [[ByteLength]], [[ByteOffset]], [[ArrayLength]] »).
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...
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9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList)
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...
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11. Set the [[Extensible]] internal slot of A to true.
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...
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includes: [testTypedArray.js]
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---*/
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var obj = {
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"0": 0,
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"1": 1,
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"2": 2,
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length: 3
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};
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testWithTypedArrayConstructors(function(TA) {
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var sample = new TA(obj);
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assert(Object.isExtensible(sample));
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});
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// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-typedarray-typedarray
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description: >
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The new typedArray instance from a typedArray argument is extensible
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info: >
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22.2.4.3 TypedArray ( typedArray )
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...
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4. Let O be ? AllocateTypedArray(constructorName, NewTarget,
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"%TypedArrayPrototype%").
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...
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22.2.4.2.1 Runtime Semantics: AllocateTypedArray (constructorName, newTarget,
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defaultProto [ , length ])
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...
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2. Let obj be IntegerIndexedObjectCreate(proto, « [[ViewedArrayBuffer]],
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[[TypedArrayName]], [[ByteLength]], [[ByteOffset]], [[ArrayLength]] »).
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...
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9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList)
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...
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11. Set the [[Extensible]] internal slot of A to true.
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...
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includes: [testTypedArray.js]
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---*/
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var typedArraySample1 = new Int8Array();
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var typedArraySample2 = new Int8Array();
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Object.preventExtensions(typedArraySample2);
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testWithTypedArrayConstructors(function(TA) {
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var sample1 = new TA(typedArraySample1);
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assert(Object.isExtensible(sample1), "new instance is extensible");
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var sample2 = new TA(typedArraySample2);
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assert(
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Object.isExtensible(sample2),
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"new instance does not inherit extensibility from typedarray argument"
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);
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});
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