Yeah you called his bluff on that one. Apparently though it is possible with enough urine according to the article. As a matter of fact, testosterone itself was first isolated from many liters of piss collected from multiple male subjects (if I got my history right).
I just think your standard run-of-the-mill 4 panel/panel 4 piss test is what most people refer to when talking about a urinalysis. Anything beyond that is more cash, and nothing your standard employer or commander is gonna f*ck with without probable cause or suspicion.
This may or may not be related, but my wife's sister works in the hospital. They do diagnostic urine tests. She said sometimes the hospital will bill the patient upwards of $365 for panel 7 I believe (piss test)... Just to give you an idea.