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spec/util_serialization_spec.lua

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spec/util_serialization_spec.lua @ 9566:dad29508d0f2

util.serialization: Test rejection of multiple references to same table
author Kim Alvefur <zash@zash.se>
date Sat, 27 Oct 2018 12:40:47 +0200
parent 9485:c667887d78ad
child 9567:dbfa286cfa88
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1 local serialization = require "util.serialization";
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2
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3 describe("util.serialization", function ()
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4 describe("serialize", function ()
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5 it("makes a string", function ()
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6 assert.is_string(serialization.serialize({}));
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7 assert.is_string(serialization.serialize(nil));
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8 assert.is_string(serialization.serialize(1));
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9 assert.is_string(serialization.serialize(true));
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10 end);
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11
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12 it("rejects function by default", function ()
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13 assert.has_error(function ()
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14 serialization.serialize(function () end)
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15 end);
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16 end);
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17
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18 it("makes a string in debug mode", function ()
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19 assert.is_string(serialization.serialize(function () end, "debug"));
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20 end);
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21
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22 it("rejects cycles", function ()
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23 assert.has_error(function ()
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24 local t = {}
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25 t[t] = { t };
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26 serialization.serialize(t)
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27 end);
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28 end);
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29
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30 it("rejects multiple references to same table", function ()
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31 assert.has_error(function ()
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32 local t1 = {};
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33 local t2 = { t1, t1 };
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34 serialization.serialize(t2);
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35 end);
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36 end);
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37
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38 it("roundtrips", function ()
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39 local function test(data)
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40 local serialized = serialization.serialize(data);
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41 assert.is_string(serialized);
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42 local deserialized, err = serialization.deserialize(serialized);
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43 assert.same(data, deserialized, err);
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44 end
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45
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46 test({});
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47 test({hello="world"});
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48 test("foobar")
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49 test("\0\1\2\3");
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50 test("nödåtgärd");
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51 test({1,2,3,4});
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52 test({foo={[100]={{"bar"},{baz=1}}}});
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53 test({["goto"] = {["function"]={["do"]="keywords"}}});
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54 end);
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55
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56 it("can serialize with metatables", function ()
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57 local s = serialization.new({ freeze = true });
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58 local t = setmetatable({ a = "hi" }, { __freeze = function (t) return { t.a } end });
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59 local rt = serialization.deserialize(s(t));
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60 assert.same({"hi"}, rt);
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61 end);
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62
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63 end);
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64 end);
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65