|The following is based on developer test content cut from Fallout: New Vegas.|
The room has the same layout as the test cell for traps but instead of traps, they have been replaced with "testing dummies" (raiders) standing at various distances. There is a ruler on the floor measuring the distance of in-game units, which is equivalent to approximately 33 yards.
Each "testing dummy" is rooted in place and can not move, although they turn hostile if close enough to the player character, in which they will begin punching. Each "testing dummy" has raider armor with a DT of 4 and 95 Hit Points.
TestJoshWeapons appears in the game files of Fallout: New Vegas, but should not be considered canon because it is a test cell.
If one is to save in TestJoshWeapons, the save file becomes corrupted.