File

spec/util_json_spec.lua @ 11026:a086825ed73a

util.dataforms: Convert media element sizes to avoid error on Lua 5.3 The stanza API does not accept number values and threw an error due to the height and width attributes of the media element (XEP-0221). This part had no test coverage previously, explaining why it was not discovered until now.
author Kim Alvefur <zash@zash.se>
date Sun, 16 Aug 2020 12:55:55 +0200
parent 10591:d78c5c9b0cf6
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local json = require "util.json";
local array = require "util.array";

describe("util.json", function()
	describe("#encode()", function()
		it("should work", function()
			local function test(f, j, e)
				if e then
					assert.are.equal(f(j), e);
				end
				assert.are.equal(f(j), f(json.decode(f(j))));
			end
			test(json.encode, json.null, "null")
			test(json.encode, {}, "{}")
			test(json.encode, {a=1});
			test(json.encode, {a={1,2,3}});
			test(json.encode, {1}, "[1]");
		end);
	end);

	describe("#decode()", function()
		it("should work", function()
			local empty_array = json.decode("[]");
			assert.are.equal(type(empty_array), "table");
			assert.are.equal(#empty_array, 0);
			assert.are.equal(next(empty_array), nil);
		end);
	end);

	describe("testcases", function()

		local valid_data = {};
		local invalid_data = {};

		local skip = "fail1.json fail9.json fail18.json fail15.json fail13.json fail25.json fail26.json fail27.json fail28.json fail17.json pass1.json";

		setup(function()
			local lfs = require "lfs";
			local path = "spec/json";
			for name in lfs.dir(path) do
				if name:match("%.json$") then
					local f = assert(io.open(path.."/"..name));
					local content = assert(f:read("*a"));
					assert(f:close());
					if skip:find(name) then --luacheck: ignore 542
						-- Skip
					elseif name:match("^pass") then
						valid_data[name] = content;
					elseif name:match("^fail") then
						invalid_data[name] = content;
					end
				end
			end
		end)

		it("should pass valid testcases", function()
			for name, content in pairs(valid_data) do
				local parsed, err = json.decode(content);
				assert(parsed, name..": "..tostring(err));
			end
		end);

		it("should fail invalid testcases", function()
			for name, content in pairs(invalid_data) do
				local parsed, err = json.decode(content);
				assert(not parsed, name..": "..tostring(err));
			end
		end);
	end)

	describe("util.array integration", function ()
		it("works", function ()
			assert.equal("[]", json.encode(array()));
			assert.equal("[1,2,3]", json.encode(array({1,2,3})));
			assert.equal(getmetatable(array()), getmetatable(json.decode("[]")));
		end);
	end);

end);