Module:Sandbox/Johnuniq/message

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-- Adapt message() from Module:Documentation/sandbox to test
-- Anomie's advice at [[WT:Lua#Module localisation]]:
--   mw.message.newRawMessage("text"):params("$1", "$2", "etc"):plain()
-- To see output, preview following in a sandbox:
--   {{#invoke:Sandbox/Johnuniq/message|main}}

local cfg = {
	invalid = 'Input "$1" is not a number',
	too_big = 'Input $1 should be less than $2',
}

local function message(cfgKey, valArray)
	local msg = cfg[cfgKey]
	if valArray then
		return mw.message.newRawMessage(msg):params(valArray):plain()
	end
	return msg
end

local tests = {
	{ 'invalid', { 'xyz' } },
	{ 'too_big', { '42', '12' } },
	{ 'too_big', { 42, 12 } },
}

local function main()
	local result = {}
	for _, t in ipairs(tests) do
		result[#result + 1] = '*' .. message(t[1], t[2]) .. '\n'
	end
	return table.concat(result)
end

return { main = main }