1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/types/object/S8.6.1_A3.js b/js/src/tests/test262/language/types/object/S8.6.1_A3.js
new file mode 100644
index 0000000000..af085a0cf6
--- /dev/null
+++ b/js/src/tests/test262/language/types/object/S8.6.1_A3.js
@@ -0,0 +1,29 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: |
+    A property can have attribute DontDelete like NaN propertie of Number
+    object
+es5id: 8.6.1_A3
+description: Try to delete Number.NaN
+flags: [noStrict]
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (delete Number.NaN !== false){
+  throw new Test262Error('#1: delete Number.NaN === false. Actual: ' + (delete Number.NaN));
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (typeof(Number.NaN) === "undefined"){
+  throw new Test262Error('#2: delete Number.NaN; typeof(Number.NaN) !== "undefined" ');
+};
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);