tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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arithmetic.js (2865B)

      1 // Copyright (C) 2017 Josh Wolfe. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: sec-bigint.asuintn
      5 description: BigInt.asUintN arithmetic test cases
      6 info: |
      7  BigInt.asUintN ( bits, bigint )
      8 
      9  3. Return a BigInt representing bigint modulo 2**bits.
     10 
     11 features: [BigInt]
     12 ---*/
     13 
     14 assert.sameValue(BigInt.asUintN(0, -2n), 0n);
     15 assert.sameValue(BigInt.asUintN(0, -1n), 0n);
     16 assert.sameValue(BigInt.asUintN(0, 0n), 0n);
     17 assert.sameValue(BigInt.asUintN(0, 1n), 0n);
     18 assert.sameValue(BigInt.asUintN(0, 2n), 0n);
     19 
     20 assert.sameValue(BigInt.asUintN(1, -3n), 1n);
     21 assert.sameValue(BigInt.asUintN(1, -2n), 0n);
     22 assert.sameValue(BigInt.asUintN(1, -1n), 1n);
     23 assert.sameValue(BigInt.asUintN(1, 0n), 0n);
     24 assert.sameValue(BigInt.asUintN(1, 1n), 1n);
     25 assert.sameValue(BigInt.asUintN(1, 2n), 0n);
     26 assert.sameValue(BigInt.asUintN(1, 3n), 1n);
     27 assert.sameValue(BigInt.asUintN(1, -123456789012345678901n), 1n);
     28 assert.sameValue(BigInt.asUintN(1, -123456789012345678900n), 0n);
     29 assert.sameValue(BigInt.asUintN(1, 123456789012345678900n), 0n);
     30 assert.sameValue(BigInt.asUintN(1, 123456789012345678901n), 1n);
     31 
     32 assert.sameValue(BigInt.asUintN(2, -3n), 1n);
     33 assert.sameValue(BigInt.asUintN(2, -2n), 2n);
     34 assert.sameValue(BigInt.asUintN(2, -1n), 3n);
     35 assert.sameValue(BigInt.asUintN(2, 0n), 0n);
     36 assert.sameValue(BigInt.asUintN(2, 1n), 1n);
     37 assert.sameValue(BigInt.asUintN(2, 2n), 2n);
     38 assert.sameValue(BigInt.asUintN(2, 3n), 3n);
     39 assert.sameValue(BigInt.asUintN(2, -123456789012345678901n), 3n);
     40 assert.sameValue(BigInt.asUintN(2, -123456789012345678900n), 0n);
     41 assert.sameValue(BigInt.asUintN(2, 123456789012345678900n), 0n);
     42 assert.sameValue(BigInt.asUintN(2, 123456789012345678901n), 1n);
     43 
     44 assert.sameValue(BigInt.asUintN(8, 0xabn), 0xabn);
     45 assert.sameValue(BigInt.asUintN(8, 0xabcdn), 0xcdn);
     46 assert.sameValue(BigInt.asUintN(8, 0xabcdef01n), 0x01n);
     47 assert.sameValue(BigInt.asUintN(8, 0xabcdef0123456789abcdef0123n), 0x23n);
     48 assert.sameValue(BigInt.asUintN(8, 0xabcdef0123456789abcdef0183n), 0x83n);
     49 
     50 assert.sameValue(BigInt.asUintN(64, 0xabcdef0123456789abcdefn), 0x0123456789abcdefn);
     51 assert.sameValue(BigInt.asUintN(65, 0xabcdef0123456789abcdefn), 0x10123456789abcdefn);
     52 
     53 assert.sameValue(BigInt.asUintN(200,
     54    0xbffffffffffffffffffffffffffffffffffffffffffffffffffn),
     55  0x0ffffffffffffffffffffffffffffffffffffffffffffffffffn
     56 );
     57 assert.sameValue(BigInt.asUintN(201,
     58    0xbffffffffffffffffffffffffffffffffffffffffffffffffffn),
     59  0x1ffffffffffffffffffffffffffffffffffffffffffffffffffn
     60 );
     61 
     62 assert.sameValue(BigInt.asUintN(200,
     63    0xb89e081df68b65fedb32cffea660e55df9605650a603ad5fc54n),
     64  0x089e081df68b65fedb32cffea660e55df9605650a603ad5fc54n
     65 );
     66 assert.sameValue(BigInt.asUintN(201,
     67    0xb89e081df68b65fedb32cffea660e55df9605650a603ad5fc54n),
     68  0x189e081df68b65fedb32cffea660e55df9605650a603ad5fc54n
     69 );
     70 
     71 reportCompare(0, 0);