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comparison tools/generate_format_spec.lua @ 12034:ee94ac51b2dd

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util.format: ALL THE TESTS!!! The more tests I made, the more Lua 5.1 quirks I discovered. Tests generated using a tool plus some touch-up.
author Kim Alvefur <zash@zash.se>
date Sat, 11 Dec 2021 20:38:54 +0100
parents
children 82f6a0b0a425
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12033:161f8268c4b3 12034:ee94ac51b2dd
1 local format = require"util.format".format;
2 local dump = require "util.serialization".new("oneline")
3 local types = {
4 "nil";
5 "boolean";
6 "number";
7 "string";
8 "function";
9 -- "userdata";
10 "thread";
11 "table";
12 };
13 local example_values = {
14 ["nil"] = { n = 1; nil };
15 ["boolean"] = { true; false };
16 ["number"] = { 97, -12345, 1.5; 73786976294838206464, math.huge, 2147483647 };
17 ["string"] = { "hello", "foo \1\2\3 bar", "nödåtgärd", string.sub("nödåtgärd", 1, -4) };
18 ["function"] = { function() end };
19 -- ["userdata"] = {};
20 ["thread"] = { coroutine.create(function() end) };
21 ["table"] = { {} };
22 };
23 local example_strings = setmetatable({
24 ["nil"] = { "nil" };
25 ["function"] = { "function() end" };
26 ["number"] = { "97", "-12345", "1.5"; "73786976294838206464", "math.huge", "2147483647" };
27 ["thread"] = { "coroutine.create(function() end)" };
28 }, { __index = function() return {} end });
29 for _, lua_type in ipairs(types) do
30 print(string.format("\t\tdescribe(\"%s\", function ()", lua_type));
31 local examples = example_values[lua_type];
32 for fmt in ("cdiouxXaAeEfgGqs"):gmatch(".") do
33 print(string.format("\t\t\tdescribe(\"to %%%s\", function ()", fmt));
34 print("\t\t\t\tit(\"works\", function ()");
35 for i=1, examples.n or #examples do
36 local example = examples[i];
37 if not tostring(example):match("%w+: 0[xX]%x+") then
38 print(string.format("\t\t\t\t\tassert.equal(%q, format(%q, %s))", format("%"..fmt, example), "%" .. fmt, example_strings[lua_type][i] or dump(example)));
39 else
40 print(string.format("\t\t\t\t\tassert.matches(\"[%s: 0[xX]%%x+]\", format(%q, %s))", lua_type, "%" .. fmt, example_strings[lua_type][i] or dump(example)));
41 end
42 end
43 print("\t\t\t\tend);");
44 print("\t\t\tend);");
45 print()
46 end
47 print("\t\tend);");
48 print()
49 end