Update ArrayBuffer.byteLength test for detached ArrayBufferHEADdev

ECMAScript 2021 (ES12) changed the behavior of byteLength of
detached ArrayBuffer.

Task-number: QTBUG-103925
Change-Id: If407e2093f7716e4bbbacfff9e9e7af248c22ee8
Reviewed-by: Ulf Hermann <[email protected]>

1 files changed, 4 insertions, 6 deletions

diff --git a/test/built-ins/ArrayBuffer/prototype/byteLength/detached-buffer.js b/test/built-ins/ArrayBuffer/prototype/byteLength/detached-buffer.js
index 6a80c08a2..a0a224361 100644
--- a/test/built-ins/ArrayBuffer/prototype/byteLength/detached-buffer.js
+++ b/test/built-ins/ArrayBuffer/prototype/byteLength/detached-buffer.js
@@ -1,15 +1,15 @@
 // Copyright (C) 2016 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
-es6id: 24.1.4.1
+es12id: 25.1.5.1
 esid: sec-get-arraybuffer.prototype.bytelength
 description: Returns 0 if the buffer is detached
 info: |
-  24.1.4.1 get ArrayBuffer.prototype.byteLength
+  25.1.5.1 get ArrayBuffer.prototype.byteLength
 
   1. Let O be the this value.
   ...
-  4. If IsDetachedBuffer(O) is true, throw a TypeError exception.
+  4. If IsDetachedBuffer(O) is true, return 0.
   ...
 includes: [detachArrayBuffer.js]
 ---*/
@@ -18,6 +18,4 @@ var ab = new ArrayBuffer(1);
 
 $DETACHBUFFER(ab);
 
-assert.throws(TypeError, function() {
-  ab.byteLength;
-});
+assert.sameValue(ab.byteLength, 0);