Unit testing in lua

[Rick]

Found a nice and easy lua unit testing framework and thought I'd share for anyone interested: https://github.com/bluebird75/luaunit

 

 

You don't hear much about unit testing here but it can really help you write solid code and gives you a way to run all your tests after you make changes to make sure you didn't break anything.

 

What I did:

 

1) Under the main game directory I created a UnitTesting folder

2) I downloaded and put lua5.1.exe in this folder (this is what LE uses)

3) Download the luaunit file (it's just one file) from the github link above

4) I Create test files in here named *.Tests.lua

5) Created a .bat file named RunAll.bat with the code below that will loop over all files with *.Tests.lua in them and run them piping the output to a file of the same name but with .txt at the end:

 

echo off

for %%f in (*.Tests.lua) do (
echo %%~f
lua5.1.exe %%~f >> %%~f.txt
)

 

 

I generally make "classes" like the AnimationManager.lua class and so I'm doing 1 lua test file per class that it's testing.

 

An example of my lua test file is:

 

 

luaunit = require('luaunit')
dofile("../Scripts/BattleLibrary/Actor.lua")

TestActor = {}

function TestActor:testStaminaZero()
local actor = Actor:Create(0, "Rick")

luaunit.assertEquals(actor.stamina, 0)
end

os.exit(luaunit.LuaUnit.run())

[mdgunn]

The thought of unit testing had been through my mind a few times (and just a few days ago actually) but not yet pursued it.

 

This should help a lot. I hope to look at the Behaviour Tree stuff next time I do some AI http://www.leadwerks.com/werkspace/topic/14865-behaviour-tree/page__hl__behaviour.

 

Thanks!