Lua testing functions similar to Unity

Ring.lua

Ring = {}
Ring._registeredFunctions = {}
Ring._currentTestFunctionPtr = nil
Ring._tests = {}

function Ring.RegisterTest(func)
	table.insert(Ring._registeredFunctions, func)
end

function Ring.Assert(op, msg)
	local assertFailed = not op
	
	table.insert(Ring._tests[Ring._currentTestFunctionPtr],
		{
			status = not assertFailed,
			message = msg,
			hasMessage = (msg ~= nil)
		})
end

function Ring.RunTests()
	print("-----------------------------")
	print("-- Ring Unit Testing Began --")
	print("-----------------------------")
	print("Running tests...")
	for k,funcPtr in pairs(Ring._registeredFunctions) do
		Ring._currentTestFunctionPtr = funcPtr
		Ring._tests[Ring._currentTestFunctionPtr] = {}
		funcPtr() -- executes other ring functions Ring.Assert(op,msg).etc
		Ring._currentTestFunctionPtr = nil
	end
	print("Completed!")
	print("")
	for funcPtr, a in pairs(Ring._tests) do
		for _,testResult in pairs(a) do
			-- Get RTTI for this function.
			local functionInformation = debug.getinfo(funcPtr)
			
			local source = functionInformation.source
			local short_src = functionInformation.short_src
			local linedefined = functionInformation.linedefined
			local what = functionInformation.what -- Lua/C/main
			local name = functionInformation.name 
			local namewhat = functionInformation.namewhat -- meaning of name. global/local/method/field/-empty-
			local nups = functionInformation.nups
			
			-- Get test results information.
			local status = testResult.status
			local message = testResult.message
			local hasMessage = testResult.hasMessage
			
			if hasMessage then
				print(source, linedefined, "Name: `" .. tostring(name) .. "`", "Status: " .. tostring(status), "Message: " .. tostring(message))
			else
				print(source, linedefined, "Name: `" .. tostring(name) .. "`", "Status: " .. tostring(status))
			end
		end
	end
	print("")
	print("---------------------------------")
	print("-- Ring Unit Testing Completed --")
	print("---------------------------------")
end


--[[
function abc()
	a = 1
	Ring.Assert(a == 2, "test")
	b = 10
	return a + b
end
Ring.RegisterTest(abc)

Ring.RunTests()
]]