1 files changed, 12 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testInvalidCharCodeAt.js b/js/src/jit-test/tests/basic/testInvalidCharCodeAt.js
new file mode 100644
index 000000000..748220fcd
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testInvalidCharCodeAt.js
@@ -0,0 +1,12 @@
+function doTestInvalidCharCodeAt(input)
+{
+    var q = "";
+    for (var i = 0; i < 10; i++)
+       q += input.charCodeAt(i);
+    return q;
+}
+function testInvalidCharCodeAt()
+{
+    return doTestInvalidCharCodeAt("");
+}
+assertEq(testInvalidCharCodeAt(), "NaNNaNNaNNaNNaNNaNNaNNaNNaNNaN");