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util.format: ALL THE TESTS!!!

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The more tests I made, the more Lua 5.1 quirks I discovered.

Tests generated using a tool plus some touch-up.
This commit is contained in:
Kim Alvefur 2021-12-11 20:38:54 +01:00
parent 0ddd204a27
commit 3d0844a4f5
2 changed files with 891 additions and 0 deletions
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49
tools/generate_format_spec.lua Normal file
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local format = require"util.format".format;
local dump = require "util.serialization".new("oneline")
local types = {
"nil";
"boolean";
"number";
"string";
"function";
-- "userdata";
"thread";
"table";
};
local example_values = {
["nil"] = { n = 1; nil };
["boolean"] = { true; false };
["number"] = { 97, -12345, 1.5; 73786976294838206464, math.huge, 2147483647 };
["string"] = { "hello", "foo \1\2\3 bar", "nödåtgärd", string.sub("nödåtgärd", 1, -4) };
["function"] = { function() end };
-- ["userdata"] = {};
["thread"] = { coroutine.create(function() end) };
["table"] = { {} };
};
local example_strings = setmetatable({
["nil"] = { "nil" };
["function"] = { "function() end" };
["number"] = { "97", "-12345", "1.5"; "73786976294838206464", "math.huge", "2147483647" };
["thread"] = { "coroutine.create(function() end)" };
}, { __index = function() return {} end });
for _, lua_type in ipairs(types) do
print(string.format("\t\tdescribe(\"%s\", function ()", lua_type));
local examples = example_values[lua_type];
for fmt in ("cdiouxXaAeEfgGqs"):gmatch(".") do
print(string.format("\t\t\tdescribe(\"to %%%s\", function ()", fmt));
print("\t\t\t\tit(\"works\", function ()");
for i=1, examples.n or #examples do
local example = examples[i];
if not tostring(example):match("%w+: 0[xX]%x+") then
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)));
else
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)));
end
end
print("\t\t\t\tend);");
print("\t\t\tend);");
print()
end
print("\t\tend);");
print()
end