prosody
99ba0b89e531
spec/util_uuid_spec.lua

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spec/util_uuid_spec.lua @ 13795:99ba0b89e531

Merge 13.0->trunk
author Matthew Wild <mwild1@gmail.com>
date Mon, 31 Mar 2025 16:43:06 +0100
parent 13317:e6a5f196fc1f
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1 -- This tests the format, not the randomness
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2
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3 local uuid = require "util.uuid";
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4
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5 describe("util.uuid", function()
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6 describe("#generate()", function()
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7 it("should work follow the UUID pattern", function()
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8 -- https://www.rfc-editor.org/rfc/rfc4122.html#section-4.4
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9
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10 local pattern = "^" .. table.concat({
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11 string.rep("%x", 8),
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12 string.rep("%x", 4),
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13 "4" .. -- version
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14 string.rep("%x", 3),
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15 "[89ab]" .. -- reserved bits of 1 and 0
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16 string.rep("%x", 3),
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17 string.rep("%x", 12),
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18 }, "%-") .. "$";
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19
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20 for _ = 1, 100 do
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21 assert.is_string(uuid.generate():match(pattern));
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22 end
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23
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24 assert.truthy(uuid.generate() ~= uuid.generate(), "does not generate the same UUIDv4 twice")
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25 end);
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26 end);
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27 describe("#v7", function()
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28 it("should also follow the UUID pattern", function()
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29 local pattern = "^" .. table.concat({
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30 string.rep("%x", 8),
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31 string.rep("%x", 4),
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32 "7" .. -- version
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33 string.rep("%x", 3),
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34 "[89ab]" .. -- reserved bits of 1 and 0
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35 string.rep("%x", 3),
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36 string.rep("%x", 12),
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37 }, "%-") .. "$";
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38
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39 local one = uuid.v7(); -- one before the loop to ensure some time passes
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40 for _ = 1, 100 do
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41 assert.is_string(uuid.v7():match(pattern));
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42 end
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43 -- one after the loop when some time should have passed
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44 assert.truthy(one < uuid.v7(), "should be ordererd")
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45 end);
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46 end);
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47 end);