How do you test your ROMs?

For testing I use ZSNES since it can save up to 100 save states so I have a save state for almost every places and events. I load the necessary savestates and I see how it goes.

For my testing procedure, I have my ROM which is heavily (and only) modified by FF3usME, then each changes outside of FF3usME are made into IPS files. Before doing anything I run PatchConflict to make sure there is no conflicts between the patches.

From there I run a batch file that I made that will copy the FF3usME modified ROM where my IPS files are, apply the IPS files to the ROM and then run ZSNES using that backup-patched ROM so that if corruption occur, it's no big deal since it's a copy of the original project.

BTW if anyone knows a program like IPS.EXE but compatible with Win32 that can patch IPS files in batch and via command line, that would be great.