test262/test/language/expressions/less-than/bigint-and-number-extremes.js

49 lines
3.7 KiB
JavaScript

// Copyright (C) 2017 Josh Wolfe. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Comparisons of large BigInt and Number values
esid: sec-abstract-relational-comparison
info: |
...
3. If both px and py are Strings, then
...
4. Else,
a. Let nx be ? ToNumeric(px). Because px and py are primitive values evaluation order is not important.
b. Let ny be ? ToNumeric(py).
c. If Type(nx) is Type(ny), return ? Type(nx)::lessThan(nx, ny).
d. Assert: Type(nx) is BigInt and Type(ny) is Number, or if Type(nx) is Number and Type(ny) is BigInt.
e. If x or y are any of NaN, return undefined.
f. If x is -∞, or y is +∞, return true.
g. If x is +∞, or y is -∞, return false.
h. If the mathematical value of nx is less than the mathematical value of ny, return true, otherwise return false.
features: [BigInt]
---*/
assert.sameValue(1n < Number.MAX_VALUE, true, 'The result of (1n < Number.MAX_VALUE) is true');
assert.sameValue(Number.MAX_VALUE < 1n, false, 'The result of (Number.MAX_VALUE < 1n) is false');
assert.sameValue(1n < -Number.MAX_VALUE, false, 'The result of (1n < -Number.MAX_VALUE) is false');
assert.sameValue(-Number.MAX_VALUE < 1n, true, 'The result of (-Number.MAX_VALUE < 1n) is true');
assert.sameValue(
0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn < Number.MAX_VALUE,
true,
'The result of (0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn < Number.MAX_VALUE) is true'
);
assert.sameValue(
Number.MAX_VALUE < 0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn,
false,
'The result of (Number.MAX_VALUE < 0xfffffffffffff7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffn) is false'
);
assert.sameValue(
0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001n < Number.MAX_VALUE,
false,
'The result of (0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001n < Number.MAX_VALUE) is false'
);
assert.sameValue(
Number.MAX_VALUE < 0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001n,
true,
'The result of (Number.MAX_VALUE < 0xfffffffffffff800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001n) is true'
);