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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/regress/regress-211590.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/regress/regress-211590.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/non262/regress/regress-211590.js b/js/src/tests/non262/regress/regress-211590.js new file mode 100644 index 0000000000..a31bd3bfe4 --- /dev/null +++ b/js/src/tests/non262/regress/regress-211590.js @@ -0,0 +1,54 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +//----------------------------------------------------------------------------- +var BUGNUMBER = 211590; +var summary = 'Math.random should be random'; +var actual = ''; +var expect = 'between 47.5% and 52.5%'; + +printBugNumber(BUGNUMBER); +printStatus (summary); + +var r = Math.random; +var c = Math.pow( 2, 53 ); + +var n = 10000; +var odd1 = 0; +var odd2 = 0; + +for ( var i = 0; i < n; ++i ) +{ + var v= r() * c; + if ( v & 1 ) + ++odd1; + if ( v - c + c & 1 ) + ++odd2; +} + +odd1 *= 100 / n; +odd2 *= 100 / n; + +if (odd1 >= 47.5 && odd1 <= 52.5) +{ + actual = expect; +} +else +{ + actual = ' is ' + odd1.toFixed(3); +} + +reportCompare(expect, actual, summary); + +if (odd2 >= 47.5 && odd2 <= 52.5) +{ + actual = expect; +} +else +{ + actual = ' is ' + odd2.toFixed(3); +} + +reportCompare(expect, actual, summary); |