tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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S15.8.2.15_A7.js (1911B)

      1 // Copyright 2009 the Sputnik authors.  All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 info: |
      6    If x is less than or equal to -0 and x is greater than or equal to -0.5,
      7    Math.round(x) is equal to -0
      8 es5id: 15.8.2.15_A7
      9 description: >
     10    `Math.round(x)` differs from `Math.floor(x + 0.5)`:
     11 
     12    1) for values in [-0.5; -0]
     13    2) for 0.5 - Number.EPSILON / 4
     14    3) for odd integers in [-(2 / Number.EPSILON - 1); -(1 / Number.EPSILON + 1)] or in [1 / Number.EPSILON + 1; 2 / Number.EPSILON - 1]
     15 ---*/
     16 assert.sameValue(
     17  1 / Math.round(-0.5),
     18  1 / -0,
     19  'The result of evaluating (1 / Math.round(-0.5)) is expected to be 1 / -0'
     20 );
     21 
     22 assert.sameValue(
     23  1 / Math.round(-0.25),
     24  1 / -0,
     25  'The result of evaluating (1 / Math.round(-0.25)) is expected to be 1 / -0'
     26 );
     27 
     28 assert.sameValue(1 / Math.round(-0), 1 / -0, 'The result of evaluating (1 / Math.round(-0)) is expected to be 1 / -0');
     29 
     30 var x = 0;
     31 
     32 // CHECK#4
     33 x = 0.5 - Number.EPSILON / 4;
     34 assert.sameValue(1 / Math.round(x), 1 / 0, 'The result of evaluating (1 / Math.round(x)) is expected to be 1 / 0');
     35 
     36 // CHECK#5
     37 x = -(2 / Number.EPSILON - 1);
     38 assert.sameValue(Math.round(x), x, 'Math.round(-(2 / Number.EPSILON - 1)) returns x');
     39 
     40 // CHECK#6
     41 x = -(1.5 / Number.EPSILON - 1);
     42 assert.sameValue(Math.round(x), x, 'Math.round(-(1.5 / Number.EPSILON - 1)) returns x');
     43 
     44 // CHECK#7
     45 x = -(1 / Number.EPSILON + 1);
     46 assert.sameValue(Math.round(x), x, 'Math.round(-(1 / Number.EPSILON + 1)) returns x');
     47 
     48 // CHECK#8
     49 x = 1 / Number.EPSILON + 1;
     50 assert.sameValue(Math.round(x), x, 'Math.round(1 / Number.EPSILON + 1) returns x');
     51 
     52 // CHECK#9
     53 x = 1.5 / Number.EPSILON - 1;
     54 assert.sameValue(Math.round(x), x, 'Math.round(1.5 / Number.EPSILON - 1) returns x');
     55 
     56 // CHECK#10
     57 x = 2 / Number.EPSILON - 1;
     58 assert.sameValue(Math.round(x), x, 'Math.round(2 / Number.EPSILON - 1) returns x');
     59 
     60 reportCompare(0, 0);