--[[
Copyright (c) 2014, Robert 'Bobby' Zenz
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--- A simple utility for testing values.
test = {}


--- Test if the given value matches the given expected value.
-- If the values do not match, an error with the given message (if any) and
-- an additional message containing both values will be shown.
--
-- The values will be compared with ==.
--
-- @param expected The expected value.
-- @param actual The actual value.
-- @param message Optional. The additional message to be printed.
function test.equals(expected, actual, message)
	message = message or ""
	
	if expected == nil and actual ~= nil then
		error(message .. "\nAssert failed! Expected: <nil> but got <" .. actual .. ">")
	end
	
	if expected ~= nil and actual == nil then
		error(message .. "\nAssert failed! Expected: <" .. expected .. "> but got <nil>")
	end
	
	if expected ~= nil and actual ~= nil then
		assert(expected == actual, message .. "\nAssert failed! Expected <" .. tostring(expected) .. "> but got <" .. tostring(actual) .. ">")
	end
end