1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/trim/15.5.4.20-1-9.js b/js/src/tests/test262/built-ins/String/prototype/trim/15.5.4.20-1-9.js
new file mode 100644
index 0000000000..97e767d831
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/trim/15.5.4.20-1-9.js
@@ -0,0 +1,15 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 15.5.4.20-1-9
+description: >
+    String.prototype.trim works for a String object which value is
+    undefined
+---*/
+
+var strObj = new String(undefined);
+
+assert.sameValue(strObj.trim(), "undefined", 'strObj.trim()');
+
+reportCompare(0, 0);