Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 28 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/SharedArrayBuffer/zero-length.js b/js/src/tests/test262/built-ins/SharedArrayBuffer/zero-length.js
new file mode 100644
index 0000000000..7d36e21369
--- /dev/null
+++ b/js/src/tests/test262/built-ins/SharedArrayBuffer/zero-length.js
@@ -0,0 +1,28 @@
+// |reftest| skip-if(!this.hasOwnProperty('SharedArrayBuffer')) -- SharedArrayBuffer is not enabled unconditionally
+// Copyright (C) 2015 André Bargull. 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-sharedarraybuffer-length
+description: >
+  The `length` parameter can be zero.
+info: |
+  SharedArrayBuffer( length )
+
+  ...
+  2. Let numberLength be ToNumber(length).
+  3. Let byteLength be ToLength(numberLength).
+  4. ReturnIfAbrupt(byteLength).
+  5. If SameValueZero(numberLength, byteLength) is false, throw a RangeError exception.
+  ...
+features: [SharedArrayBuffer]
+---*/
+
+var positiveZero = new SharedArrayBuffer(+0);
+assert.sameValue(positiveZero.byteLength, 0);
+
+var negativeZero = new SharedArrayBuffer(-0);
+assert.sameValue(negativeZero.byteLength, 0);
+
+reportCompare(0, 0);