1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/map/arraylength-internal.js b/js/src/tests/test262/built-ins/TypedArray/prototype/map/arraylength-internal.js
new file mode 100644
index 0000000000..4d50955331
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/map/arraylength-internal.js
@@ -0,0 +1,47 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.map
+description: >
+  [[ArrayLength]] is accessed in place of performing a [[Get]] of "length"
+info: |
+  22.2.3.19 %TypedArray%.prototype.map ( callbackfn [ , thisArg ] )
+
+  ...
+  3. Let len be the value of O's [[ArrayLength]] internal slot.
+  ...
+includes: [testTypedArray.js]
+features: [TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample1 = new TA(42);
+  var loop = 0;
+
+  Object.defineProperty(sample1, "length", {value: 1});
+
+  sample1.map(function() {
+    loop++;
+    return 0;
+  });
+  assert.sameValue(loop, 42, "data descriptor");
+
+  loop = 0;
+  var sample2 = new TA(4);
+  Object.defineProperty(sample2, "length", {
+    get: function() {
+      throw new Test262Error(
+        "Does not return abrupt getting length property"
+      );
+    }
+  });
+
+  sample2.map(function() {
+    loop++;
+    return 0;
+  });
+  assert.sameValue(loop, 4, "accessor descriptor");
+});
+
+
+reportCompare(0, 0);