1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/toLowerCase/S15.5.4.16_A1_T7.js b/js/src/tests/test262/built-ins/String/prototype/toLowerCase/S15.5.4.16_A1_T7.js
new file mode 100644
index 0000000000..239740c605
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/toLowerCase/S15.5.4.16_A1_T7.js
@@ -0,0 +1,20 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: String.prototype.toLowerCase()
+es5id: 15.5.4.16_A1_T7
+description: Call toLowerCase() function of NaN
+---*/
+
+Number.prototype.toLowerCase = String.prototype.toLowerCase;
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (NaN.toLowerCase() !== "nan") {
+  throw new Test262Error('#1: Number.prototype.toLowerCase = String.prototype.toLowerCase; NaN.toLowerCase()=== "nan". Actual: ' + NaN.toLowerCase());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);