1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/map/15.4.4.19-8-b-11.js b/js/src/tests/test262/built-ins/Array/prototype/map/15.4.4.19-8-b-11.js
new file mode 100644
index 0000000000..996812f874
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/map/15.4.4.19-8-b-11.js
@@ -0,0 +1,30 @@
+// 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
+---*/
+
+function callbackfn(val, idx, obj) {
+  return idx === 1 && typeof val === "undefined";
+}
+var arr = [0, , 2];
+
+Object.defineProperty(arr, "0", {
+  get: function() {
+    delete Array.prototype[1];
+    return 0;
+  },
+  configurable: true
+});
+
+Array.prototype[1] = 1;
+var testResult = arr.map(callbackfn);
+
+assert.sameValue(testResult.length, 3, 'testResult.length');
+assert.sameValue(typeof testResult[1], "undefined", 'typeof testResult[1]');
+
+reportCompare(0, 0);