chapter 2: "testing track" - portal 2 leaked 2010 beta

this is (most of) the second chapter of portal 2 from a september 2010 build. some levels don't have proper lighting baked in and level transitions are broken on a few. past a certain point, I couldn't figure out what map was supposed to come next so I just ended it there. the map file names aren't labeled by chapter in this build. DISCLAIMER: the goal of these uploads is to preserve an important part of gaming history, NOT to infringe on the copyrighted works of Valve Software. I do not condone theft/piracy.