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comparison spec/util_bitcompat_spec.lua @ 12366:c640717e01ca

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util.bitcompat: Add some simple tests
author Matthew Wild <mwild1@gmail.com>
date Fri, 04 Mar 2022 19:48:01 +0000
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children 9912baa541c0
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12365:af02b033bd7f 12366:c640717e01ca
1 describe("util.bitcompat", function ()
2 -- bitcompat will pass through to an appropriate implementation. Our
3 -- goal here is to check that whatever implementation is in use passes
4 -- these basic sanity checks.
5
6 local bit = require "util.bitcompat";
7
8 it("bor works", function ()
9 assert.equal(0xF0FF, bit.bor(0xF000, 0x00F0, 0x000F));
10 end);
11
12 it("band works", function ()
13 assert.equal(0x0F, bit.band(0xFF, 0x1F, 0x0F));
14 end);
15
16 it("bxor works", function ()
17 assert.equal(0x13, bit.bxor(0x10, 0x0F, 0x0C));
18 end);
19
20 it("rshift works", function ()
21 assert.equal(0x0F, bit.rshift(0xFF, 4));
22 end);
23
24 it("lshift works", function ()
25 assert.equal(0xFF00, bit.lshift(0xFF, 8));
26 end);
27 end);