File

spec/util_bitcompat_spec.lua @ 13535:88cab98aa28c

mod_pubsub: Move precondition error wrangling out of util.pubsub Removes dependency on util.error from util.pubsub which was only used for this one special case. Line count reduction! Would be even nicer if templating could be done by util.error itself.
author Kim Alvefur <zash@zash.se>
date Tue, 29 Oct 2024 14:56:02 +0100
parent 13449:9912baa541c0
line wrap: on
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describe("util.bitcompat", function ()
	-- bitcompat will pass through to an appropriate implementation. Our
	-- goal here is to check that whatever implementation is in use passes
	-- these basic sanity checks.

	local bit = require "util.bitcompat";

	it("bor works", function ()
		assert.equal(0xF0FF, bit.bor(0xF000, 0x00F0, 0x000F));
	end);

	it("band works", function ()
		assert.equal(0x0F, bit.band(0xFF, 0x1F, 0x0F));
	end);

	it("bxor works", function ()
		assert.equal(0x13, bit.bxor(0x10, 0x0F, 0x0C));
	end);

	it("rshift works", function ()
		assert.equal(0x0F, bit.rshift(0xFF, 4));
	end);

	it("lshift works", function ()
		assert.equal(0xFF00, bit.lshift(0xFF, 8));
	end);

	it("bnot works", function ()
		assert.equal(0x0000FF00, bit.band(0xFFFFFFFF, bit.bnot(0xFFFF00FF)));
	end);
end);