1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Number/isSafeInteger/not-safe-integer.js b/js/src/tests/test262/built-ins/Number/isSafeInteger/not-safe-integer.js
new file mode 100644
index 0000000000..d3552d0511
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Number/isSafeInteger/not-safe-integer.js
@@ -0,0 +1,21 @@
+// 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-number.issafeinteger
+description: >
+  Return false if argument is not a safe integer
+info: |
+  Number.isSafeInteger ( number )
+
+  [...]
+  3. Let integer be ToInteger(number).
+  4. If integer is not equal to number, return false.
+  5. If abs(integer) ≤ 2**53-1, return true.
+  6. Otherwise, return false.
+---*/
+
+assert.sameValue(Number.isSafeInteger(9007199254740992), false, "2**53");
+assert.sameValue(Number.isSafeInteger(-9007199254740992), false, "-(2**53)");
+
+reportCompare(0, 0);