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spec/util_serialization_spec.lua @ 12446:e54b8a5e35ad 0.12
util.random: Test whether util.crand works before using it (fix #1734)
util.crand can be configured at compile time to use the Linux
getrandom() system call, available from Linux 3.17, but it is still
possible to load it with an older kernel lacking that system call, where
attempting to use it throws an ENOSYS error.
By testing for this on load we can fall back to /dev/urandom in this
case.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sat, 02 Apr 2022 16:33:27 +0200 |
parent | 9567:dbfa286cfa88 |
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local serialization = require "util.serialization"; describe("util.serialization", function () describe("serialize", function () it("makes a string", function () assert.is_string(serialization.serialize({})); assert.is_string(serialization.serialize(nil)); assert.is_string(serialization.serialize(1)); assert.is_string(serialization.serialize(true)); end); it("rejects function by default", function () assert.has_error(function () serialization.serialize(function () end) end); end); it("makes a string in debug mode", function () assert.is_string(serialization.serialize(function () end, "debug")); end); it("rejects cycles", function () assert.has_error(function () local t = {} t[t] = { t }; serialization.serialize(t) end); -- also with multirefs allowed assert.has_error(function () local t = {} t[t] = { t }; serialization.serialize(t, { multirefs = true }) end); end); it("rejects multiple references to same table", function () assert.has_error(function () local t1 = {}; local t2 = { t1, t1 }; serialization.serialize(t2, { multirefs = false }); end); end); it("optionally allows multiple references to same table", function () assert.has_error(function () local t1 = {}; local t2 = { t1, t1 }; serialization.serialize(t2, { multirefs = true }); end); end); it("roundtrips", function () local function test(data) local serialized = serialization.serialize(data); assert.is_string(serialized); local deserialized, err = serialization.deserialize(serialized); assert.same(data, deserialized, err); end test({}); test({hello="world"}); test("foobar") test("\0\1\2\3"); test("nödåtgärd"); test({1,2,3,4}); test({foo={[100]={{"bar"},{baz=1}}}}); test({["goto"] = {["function"]={["do"]="keywords"}}}); end); it("can serialize with metatables", function () local s = serialization.new({ freeze = true }); local t = setmetatable({ a = "hi" }, { __freeze = function (t) return { t.a } end }); local rt = serialization.deserialize(s(t)); assert.same({"hi"}, rt); end); end); end);