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// Copyright (c) 2016 The V8 Project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 20.1.2.5
esid: sec-number.issafeinteger
description: >
Return true if argument is 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.
[...]
---*/
assert.sameValue(Number.isInteger(1), true, "1");
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");
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