view spec/util_bitcompat_spec.lua @ 14182:a331cde41c85 13.0

util.poll: Reject fd == FD_SETSIZE FD_SETSIZE is the maximum total number of FDs supports (well, the highest valid fd number). 0 is a valid fd number, so it supports up to 1023 if FD_SETSIZE is 1024. This is just a fencepost issue, fds > FD_SETSIZE were already correctly rejected.
author Matthew Wild <mwild1@gmail.com>
date Mon, 25 May 2026 16:06:19 +0100
parents 9912baa541c0
children
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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);