No? Too bad!
Introducing GZDoomTest!
It's kinda like DoomTest but i used GZDoom's innovative and new "Lump Filter" technology, which only exists in GZDoom 4 im pretty sure.
I wrote this relatively quickly while trying to fix dynamic lights in Freedoom, the most work i had to do here was renaming the maps in Slade, so all of the credits go to the original creator, TheKinsie.
You can load the map through the GZDoom options.
Download Here! (MEGA)
Or here... (ModDB)
Spoiler: Screenshots