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spec/util_bitcompat_spec.lua @ 13317:e6a5f196fc1f
util.uuid: Add UUIDv7
Allows sorting by id as a substitute for sorting by timestamp since it
has the timestamp in the encoded in the first part, and only things that
happen extremely close together may get out of order by such a sort,
which might not matter.
From draft-ietf-uuidrev-rfc4122bis formerly draft-peabody-dispatch-new-uuid-format
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 15 Aug 2021 14:44:21 +0200 |
parent | 12366:c640717e01ca |
child | 13449:9912baa541c0 |
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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); end);