1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/types/object/S8.6_A2_T2.js b/js/src/tests/test262/language/types/object/S8.6_A2_T2.js
new file mode 100644
index 0000000000..74ccd45349
--- /dev/null
+++ b/js/src/tests/test262/language/types/object/S8.6_A2_T2.js
@@ -0,0 +1,26 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Do not crash with postincrement custom property
+es5id: 8.6_A2_T2
+description: Try to implement postincrement for not declared custom property
+---*/
+
+var __map={};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+assert.sameValue(__map.foo++, NaN);
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (!("foo" in __map)) {
+  throw new Test262Error('#2: var __map={}; "foo" in __map');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);