1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/SharedArrayBuffer/length-is-absent.js b/js/src/tests/test262/built-ins/SharedArrayBuffer/length-is-absent.js
new file mode 100644
index 0000000000..c525346f55
--- /dev/null
+++ b/js/src/tests/test262/built-ins/SharedArrayBuffer/length-is-absent.js
@@ -0,0 +1,23 @@
+// |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-sharedarraybuffer-length
+description: >
+  Returns an empty instance if length is absent
+info: |
+  SharedArrayBuffer( length )
+
+  1. If NewTarget is undefined, throw a TypeError exception.
+  2. Let byteLength be ? ToIndex(length).
+  3. Return ? AllocateSharedArrayBuffer(NewTarget, byteLength).
+features: [SharedArrayBuffer]
+---*/
+
+var buffer = new SharedArrayBuffer();
+
+assert.sameValue(buffer.byteLength, 0);
+
+reportCompare(0, 0);