1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/substring/S15.5.4.15_A1_T5.js b/js/src/tests/test262/built-ins/String/prototype/substring/S15.5.4.15_A1_T5.js
new file mode 100644
index 0000000000..38486f9119
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/substring/S15.5.4.15_A1_T5.js
@@ -0,0 +1,29 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: String.prototype.substring (start, end)
+es5id: 15.5.4.15_A1_T5
+description: >
+    Arguments are null and Function(), and instance is function
+    object, that have overrided valueOf function
+---*/
+
+__func.valueOf = function() {
+  return "gnulluna"
+};
+
+Function.prototype.substring = String.prototype.substring;
+
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (__func.substring(null, Function()) !== "") {
+  throw new Test262Error('#1: __func.valueOf=function(){return "gnulluna"}; Function.prototype.substring=String.prototype.substring; function __func(){}; __func.substring(null, Function()) === "". Actual: ' + __func.substring(null, Function()));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+function __func() {};
+
+reportCompare(0, 0);