diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/maxByteLength/this-is-arraybuffer.js')
-rw-r--r-- | js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/maxByteLength/this-is-arraybuffer.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/maxByteLength/this-is-arraybuffer.js b/js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/maxByteLength/this-is-arraybuffer.js new file mode 100644 index 0000000000..2be9136851 --- /dev/null +++ b/js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/maxByteLength/this-is-arraybuffer.js @@ -0,0 +1,36 @@ +// |reftest| shell-option(--enable-arraybuffer-resizable) skip-if(!this.hasOwnProperty('SharedArrayBuffer')||!ArrayBuffer.prototype.resize||!xulRuntime.shell) -- SharedArrayBuffer,resizable-arraybuffer is not enabled unconditionally, requires shell-options +// Copyright (C) 2021 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-get-sharedarraybuffer.prototype.maxbytelength +description: Throws a TypeError exception when `this` is an ArrayBuffer +info: | + get SharedArrayBuffer.prototype.maxByteLength + + 1. Let O be the this value. + 2. Perform ? RequireInternalSlot(O, [[ArrayBufferData]]). + 3. If IsSharedArrayBuffer(O) is false, throw a TypeError exception. + [...] +features: [ArrayBuffer, SharedArrayBuffer, resizable-arraybuffer] +---*/ + +var maxByteLength = Object.getOwnPropertyDescriptor( + SharedArrayBuffer.prototype, "maxByteLength" +); + +var getter = maxByteLength.get; +var ab = new ArrayBuffer(4); + +assert.sameValue(typeof getter, "function"); + +assert.throws(TypeError, function() { + getter.call(ab); +}, "`this` cannot be an ArrayBuffer"); + +Object.defineProperties(ab, { maxByteLength: maxByteLength }); + +assert.throws(TypeError, function() { + ab.maxByteLength; +}, "`this` cannot be an ArrayBuffer"); + +reportCompare(0, 0); |