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annotate spec/util_bitcompat_spec.lua @ 12591:494577d883ff

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util.table: Fix inaccurate comment Probably a duplicate of the comment next to Lmove, recorded by mistake Lpack can probably be removed at some point in the near future once we are confident it is not used anywhere.
author Kim Alvefur <zash@zash.se>
date Mon, 11 Jul 2022 20:02:10 +0200
parents c640717e01ca
children 9912baa541c0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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c640717e01ca util.bitcompat: Add some simple tests
Matthew Wild <mwild1@gmail.com>
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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);