1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/trim/15.5.4.20-1-2.js b/js/src/tests/test262/built-ins/String/prototype/trim/15.5.4.20-1-2.js
new file mode 100644
index 0000000000..9401c3c35d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/trim/15.5.4.20-1-2.js
@@ -0,0 +1,14 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 15.5.4.20-1-2
+description: String.prototype.trim throws TypeError when string is null
+---*/
+
+
+assert.throws(TypeError, function() {
+  String.prototype.trim.call(null);
+});
+
+reportCompare(0, 0);