File

+
−-- This tests the format, not the randomness
+
−
+
−local uuid = require "util.uuid";
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−
+
−describe("util.uuid", function()
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−	describe("#generate()", function()
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−		it("should work follow the UUID pattern", function()
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−			-- https://www.rfc-editor.org/rfc/rfc4122.html#section-4.4
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−
+
−			local pattern = "^" .. table.concat({
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−				string.rep("%x", 8),
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−				string.rep("%x", 4),
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−				"4" .. -- version
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−				string.rep("%x", 3),
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−				"[89ab]" .. -- reserved bits of 1 and 0
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−				string.rep("%x", 3),
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−				string.rep("%x", 12),
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−			}, "%-") .. "$";
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−
+
−			for _ = 1, 100 do
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−				assert.is_string(uuid.generate():match(pattern));
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−			end
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−
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−			assert.truthy(uuid.generate() ~= uuid.generate(), "does not generate the same UUIDv4 twice")
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−		end);
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−	end);
+
−	describe("#v7", function()
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−		it("should also follow the UUID pattern", function()
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−			local pattern = "^" .. table.concat({
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−					string.rep("%x", 8),
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−					string.rep("%x", 4),
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−					"7" .. -- version
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−					string.rep("%x", 3),
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−					"[89ab]" .. -- reserved bits of 1 and 0
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−					string.rep("%x", 3),
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−					string.rep("%x", 12),
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−				}, "%-") .. "$";
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−
+
−			local one = uuid.v7(); -- one before the loop to ensure some time passes
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−			for _ = 1, 100 do
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−				assert.is_string(uuid.v7():match(pattern));
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−			end
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−			-- one after the loop when some time should have passed
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−			assert.truthy(one < uuid.v7(), "should be ordererd")
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−		end);
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−	end);
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−end);