1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/types/object/S8.6_A2_T1.js b/js/src/tests/test262/language/types/object/S8.6_A2_T1.js
new file mode 100644
index 0000000000..1871f0f435
--- /dev/null
+++ b/js/src/tests/test262/language/types/object/S8.6_A2_T1.js
@@ -0,0 +1,21 @@
+// 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_T1
+description: Try to implement postincrement for custom property
+---*/
+
+var __map={foo:"bar"};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+
+__map.foo++;
+assert.sameValue(__map.foo, NaN);
+
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);