1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/trim/15.5.4.20-2-40.js b/js/src/tests/test262/built-ins/String/prototype/trim/15.5.4.20-2-40.js
new file mode 100644
index 0000000000..87e4daa935
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/trim/15.5.4.20-2-40.js
@@ -0,0 +1,29 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 15.5.4.20-2-40
+description: >
+    String.prototype.trim - 'this' is an object that has an own
+    toString method that returns an object and valueOf method that
+    returns a primitive value
+---*/
+
+var toStringAccessed = false;
+var valueOfAccessed = false;
+var obj = {
+  toString: function() {
+    toStringAccessed = true;
+    return {};
+  },
+  valueOf: function() {
+    valueOfAccessed = true;
+    return "abc";
+  }
+};
+
+assert.sameValue(String.prototype.trim.call(obj), "abc", 'String.prototype.trim.call(obj)');
+assert(valueOfAccessed, 'valueOfAccessed !== true');
+assert(toStringAccessed, 'toStringAccessed !== true');
+
+reportCompare(0, 0);