1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/DataView/prototype/byteLength/return-bytelength-sab.js b/js/src/tests/test262/built-ins/DataView/prototype/byteLength/return-bytelength-sab.js
new file mode 100644
index 0000000000..64f0ac4cba
--- /dev/null
+++ b/js/src/tests/test262/built-ins/DataView/prototype/byteLength/return-bytelength-sab.js
@@ -0,0 +1,31 @@
+// |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-get-dataview.prototype.bytelength
+description: >
+  Return value from [[ByteLength]] internal slot
+info: |
+  24.2.4.2 get DataView.prototype.byteLength
+
+  ...
+  7. Let size be the value of O's [[ByteLength]] internal slot.
+  8. Return size.
+features: [SharedArrayBuffer]
+---*/
+
+var buffer = new SharedArrayBuffer(12);
+
+var sample1 = new DataView(buffer, 0);
+var sample2 = new DataView(buffer, 4);
+var sample3 = new DataView(buffer, 6, 4);
+var sample4 = new DataView(buffer, 12);
+
+assert.sameValue(sample1.byteLength, 12);
+assert.sameValue(sample2.byteLength, 8);
+assert.sameValue(sample3.byteLength, 4);
+assert.sameValue(sample4.byteLength, 0);
+
+reportCompare(0, 0);