1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/byteLength/return-bytelength.js b/js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/byteLength/return-bytelength.js
new file mode 100644
index 0000000000..05a95c91fe
--- /dev/null
+++ b/js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/byteLength/return-bytelength.js
@@ -0,0 +1,16 @@
+// |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.
+/*---
+description: Return value from [[ByteLength]] internal slot
+features: [SharedArrayBuffer]
+---*/
+
+var ab1 = new SharedArrayBuffer(0);
+assert.sameValue(ab1.byteLength, 0);
+
+var ab2 = new SharedArrayBuffer(42);
+assert.sameValue(ab2.byteLength, 42);
+
+reportCompare(0, 0);