Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/defined-length-sab.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/defined-length-sab.js
new file mode 100644
index 0000000000..a729a9a231
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/ctors/buffer-arg/defined-length-sab.js
@@ -0,0 +1,38 @@
+// |reftest| skip-if(!this.hasOwnProperty('SharedArrayBuffer')) -- SharedArrayBuffer is not enabled unconditionally
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-typedarray-buffer-byteoffset-length
+description: >
+  Return new typedArray from defined length
+info: |
+  22.2.4.5 TypedArray ( buffer [ , byteOffset [ , length ] ] )
+
+  This description applies only if the TypedArray function is called with at
+  least one argument and the Type of the first argument is Object and that
+  object has an [[ArrayBufferData]] internal slot.
+
+includes: [testTypedArray.js]
+features: [SharedArrayBuffer, TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var bpe = TA.BYTES_PER_ELEMENT;
+  var length = 4;
+  var buffer = new SharedArrayBuffer(bpe * length * 4);
+
+  var ta1 = new TA(buffer, 0, length);
+  assert.sameValue(ta1.length, length);
+  assert.sameValue(ta1.buffer, buffer);
+  assert.sameValue(ta1.constructor, TA);
+  assert.sameValue(Object.getPrototypeOf(ta1), TA.prototype);
+
+  var ta2 = new TA(buffer, 0, 0);
+  assert.sameValue(ta2.length, 0);
+  assert.sameValue(ta2.buffer, buffer);
+  assert.sameValue(ta2.constructor, TA);
+  assert.sameValue(Object.getPrototypeOf(ta2), TA.prototype);
+});
+
+reportCompare(0, 0);