prosody
b6b01724e04f
spec/util_uuid_spec.lua

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spec/util_uuid_spec.lua @ 12407:b6b01724e04f

util.stanza: Create tables with correct size to avoid reallocations Potential performance gain since the tables don't need to be resized as they grow to the final size.
author Kim Alvefur <zash@zash.se>
date Fri, 18 Mar 2022 16:43:06 +0100
parent 8241:e7496cff1215
child 12604:bd9e006a7a74
line wrap: on
line source

-- This tests the format, not the randomness

local uuid = require "util.uuid";

describe("util.uuid", function()
	describe("#generate()", function()
		it("should work follow the UUID pattern", function()
			-- https://tools.ietf.org/html/rfc4122#section-4.4

			local pattern = "^" .. table.concat({
				string.rep("%x", 8),
				string.rep("%x", 4),
				"4" .. -- version
				string.rep("%x", 3),
				"[89ab]" .. -- reserved bits of 1 and 0
				string.rep("%x", 3),
				string.rep("%x", 12),
			}, "%-") .. "$";

			for _ = 1, 100 do
				assert.is_string(uuid.generate():match(pattern));
			end
		end);
	end);
end);