1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Number/isInteger/integers.js b/js/src/tests/test262/built-ins/Number/isInteger/integers.js
new file mode 100644
index 0000000000..b3110dd8f3
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Number/isInteger/integers.js
@@ -0,0 +1,19 @@
+// Copyright (c) 2014 Ryan Lewis. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es6id: 20.1.2.3
+author: Ryan Lewis
+description: Number.isInteger should return true if called with an integer.
+---*/
+
+assert.sameValue(Number.isInteger(478), true, 'Number.isInteger(478)');
+assert.sameValue(Number.isInteger(-0), true, '-0');
+assert.sameValue(Number.isInteger(0), true, '0');
+assert.sameValue(Number.isInteger(-1), true, '-1');
+assert.sameValue(Number.isInteger(9007199254740991), true, '9007199254740991');
+assert.sameValue(Number.isInteger(-9007199254740991), true, '-9007199254740991');
+assert.sameValue(Number.isInteger(9007199254740992), true, '9007199254740992');
+assert.sameValue(Number.isInteger(-9007199254740992), true, '-9007199254740992');
+
+reportCompare(0, 0);