Really need your help. I have started a new job, my first developing job in fact and Im struggling to understand how the system works. Thier product is massive and far more complex than anything i've seen. I have been looking at it during my first week to figure out how it all works but am making little progress. Theres alot of scripts and legacy code but I believe my first tasks will be going through the code of commenting it to show what it is doing. Just curious if anyone has a good way of testing code to see what it does or can point me in the right direction.