1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Date/prototype/toString/invalid-date.js b/js/src/tests/test262/built-ins/Date/prototype/toString/invalid-date.js
new file mode 100644
index 0000000000..9d0373a571
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Date/prototype/toString/invalid-date.js
@@ -0,0 +1,17 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-todatestring
+description: Invalid Dates are rendered as "Invalid Date"
+info: |
+  ToDateString ( tv )
+
+  ...
+  2. If tv is NaN, return "Invalid Date".
+  ...
+---*/
+
+assert.sameValue(new Date(NaN).toString(), "Invalid Date");
+
+reportCompare(0, 0);