1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/isNaN/length.js b/js/src/tests/test262/built-ins/isNaN/length.js
new file mode 100644
index 0000000000..01e06d1602
--- /dev/null
+++ b/js/src/tests/test262/built-ins/isNaN/length.js
@@ -0,0 +1,17 @@
+// Copyright (C) 2016 The V8 Project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-isnan-number
+description: >
+  The length property of isNaN is 1
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(isNaN.length, 1, "The value of `isNaN.length` is `1`");
+
+verifyNotEnumerable(isNaN, "length");
+verifyNotWritable(isNaN, "length");
+verifyConfigurable(isNaN, "length");
+
+reportCompare(0, 0);