1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/valueOf/string-primitive.js b/js/src/tests/test262/built-ins/String/prototype/valueOf/string-primitive.js
new file mode 100644
index 0000000000..8d951a9cfc
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/valueOf/string-primitive.js
@@ -0,0 +1,23 @@
+// Copyright (C) 2009 the Sputnik authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-string.prototype.valueof
+description: >
+  If called on String primitive, returns it
+info: |
+  String.prototype.valueOf ( )
+
+  1. Return ? thisStringValue(this value).
+
+  thisStringValue ( value )
+
+  1. If Type(value) is String, return value.
+---*/
+
+var valueOf = String.prototype.valueOf;
+
+assert.sameValue('str'.valueOf(), 'str');
+assert.sameValue(valueOf.call(''), '');
+
+reportCompare(0, 0);