1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/map/15.4.4.19-8-b-10.js b/js/src/tests/test262/built-ins/Array/prototype/map/15.4.4.19-8-b-10.js
new file mode 100644
index 0000000000..b8261636f8
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/map/15.4.4.19-8-b-10.js
@@ -0,0 +1,33 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.map
+description: >
+    Array.prototype.map - deleting property of prototype causes
+    prototype index property not to be visited on an Array-like Object
+---*/
+
+function callbackfn(val, idx, obj) {
+  return idx === 1 && typeof val === "undefined";
+}
+var obj = {
+  2: 2,
+  length: 20
+};
+
+Object.defineProperty(obj, "0", {
+  get: function() {
+    delete Object.prototype[1];
+    return 0;
+  },
+  configurable: true
+});
+
+Object.prototype[1] = 1;
+var testResult = Array.prototype.map.call(obj, callbackfn);
+
+assert.sameValue(testResult.length, 20, 'testResult.length');
+assert.sameValue(typeof testResult[1], "undefined", 'typeof testResult[1]');
+
+reportCompare(0, 0);