summaryrefslogtreecommitdiff
path: root/test/built-ins/BigInt/asUintN/arithmetic.js
blob: 9e8154f7b5deb77269b215614eb20f473afc3f6e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
// Copyright (C) 2017 Josh Wolfe. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: pending
description: BigInt.asUintN arithmetic test cases
info: |
  BigInt.asUintN ( bits, bigint )

  3. Return a BigInt representing bigint modulo 2**bits.

features: [BigInt]
---*/

assert.sameValue(BigInt.asUintN(0, -2n), 0n);
assert.sameValue(BigInt.asUintN(0, -1n), 0n);
assert.sameValue(BigInt.asUintN(0, 0n), 0n);
assert.sameValue(BigInt.asUintN(0, 1n), 0n);
assert.sameValue(BigInt.asUintN(0, 2n), 0n);

assert.sameValue(BigInt.asUintN(1, -3n), 1n);
assert.sameValue(BigInt.asUintN(1, -2n), 0n);
assert.sameValue(BigInt.asUintN(1, -1n), 1n);
assert.sameValue(BigInt.asUintN(1, 0n), 0n);
assert.sameValue(BigInt.asUintN(1, 1n), 1n);
assert.sameValue(BigInt.asUintN(1, 2n), 0n);
assert.sameValue(BigInt.asUintN(1, 3n), 1n);
assert.sameValue(BigInt.asUintN(1, -123456789012345678901n), 1n);
assert.sameValue(BigInt.asUintN(1, -123456789012345678900n), 0n);
assert.sameValue(BigInt.asUintN(1, 123456789012345678900n), 0n);
assert.sameValue(BigInt.asUintN(1, 123456789012345678901n), 1n);

assert.sameValue(BigInt.asUintN(2, -3n), 1n);
assert.sameValue(BigInt.asUintN(2, -2n), 2n);
assert.sameValue(BigInt.asUintN(2, -1n), 3n);
assert.sameValue(BigInt.asUintN(2, 0n), 0n);
assert.sameValue(BigInt.asUintN(2, 1n), 1n);
assert.sameValue(BigInt.asUintN(2, 2n), 2n);
assert.sameValue(BigInt.asUintN(2, 3n), 3n);
assert.sameValue(BigInt.asUintN(2, -123456789012345678901n), 3n);
assert.sameValue(BigInt.asUintN(2, -123456789012345678900n), 0n);
assert.sameValue(BigInt.asUintN(2, 123456789012345678900n), 0n);
assert.sameValue(BigInt.asUintN(2, 123456789012345678901n), 1n);

assert.sameValue(BigInt.asUintN(8, 0xabn), 0xabn);
assert.sameValue(BigInt.asUintN(8, 0xabcdn), 0xcdn);
assert.sameValue(BigInt.asUintN(8, 0xabcdef01n), 0x01n);
assert.sameValue(BigInt.asUintN(8, 0xabcdef0123456789abcdef0123n), 0x23n);
assert.sameValue(BigInt.asUintN(8, 0xabcdef0123456789abcdef0183n), 0x83n);

assert.sameValue(BigInt.asUintN(64, 0xabcdef0123456789abcdefn), 0x0123456789abcdefn);
assert.sameValue(BigInt.asUintN(65, 0xabcdef0123456789abcdefn), 0x10123456789abcdefn);

assert.sameValue(BigInt.asUintN(200,
    0xbffffffffffffffffffffffffffffffffffffffffffffffffffn),
  0x0ffffffffffffffffffffffffffffffffffffffffffffffffffn
);
assert.sameValue(BigInt.asUintN(201,
    0xbffffffffffffffffffffffffffffffffffffffffffffffffffn),
  0x1ffffffffffffffffffffffffffffffffffffffffffffffffffn
);

assert.sameValue(BigInt.asUintN(200,
    0xb89e081df68b65fedb32cffea660e55df9605650a603ad5fc54n),
  0x089e081df68b65fedb32cffea660e55df9605650a603ad5fc54n
);
assert.sameValue(BigInt.asUintN(201,
    0xb89e081df68b65fedb32cffea660e55df9605650a603ad5fc54n),
  0x189e081df68b65fedb32cffea660e55df9605650a603ad5fc54n
);