prosody
e54b8a5e35ad
spec/util_bitcompat_spec.lua

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spec/util_bitcompat_spec.lua @ 12446:e54b8a5e35ad 0.12

util.random: Test whether util.crand works before using it (fix #1734) util.crand can be configured at compile time to use the Linux getrandom() system call, available from Linux 3.17, but it is still possible to load it with an older kernel lacking that system call, where attempting to use it throws an ENOSYS error. By testing for this on load we can fall back to /dev/urandom in this case.
author Kim Alvefur <zash@zash.se>
date Sat, 02 Apr 2022 16:33:27 +0200
parent 12366:c640717e01ca
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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12366
c640717e01ca util.bitcompat: Add some simple tests
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1 describe("util.bitcompat", function ()
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2 -- bitcompat will pass through to an appropriate implementation. Our
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3 -- goal here is to check that whatever implementation is in use passes
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4 -- these basic sanity checks.
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5
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6 local bit = require "util.bitcompat";
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7
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8 it("bor works", function ()
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9 assert.equal(0xF0FF, bit.bor(0xF000, 0x00F0, 0x000F));
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10 end);
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11
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12 it("band works", function ()
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13 assert.equal(0x0F, bit.band(0xFF, 0x1F, 0x0F));
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14 end);
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15
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16 it("bxor works", function ()
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17 assert.equal(0x13, bit.bxor(0x10, 0x0F, 0x0C));
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18 end);
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19
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20 it("rshift works", function ()
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21 assert.equal(0x0F, bit.rshift(0xFF, 4));
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22 end);
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23
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24 it("lshift works", function ()
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25 assert.equal(0xFF00, bit.lshift(0xFF, 8));
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26 end);
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27 end);