HAHA! Made you read me!

To Play:
1. Extract the files into your Program Files (x86)\Steam\steamapps\common\portal 2\portal2\maps directory.
2. Type "map sp_12_angry_tests" in the portal 2 console. (without quotation marks)


In depth guide on playing custom maps:
http://forums.thinkingwithportals.com/mapping-help/playing-portal-2-custom-maps-t4076.html