Did Obi-Wan ever took the trials to become a Jedi Knight?

Qui-Gon: Obi-Wan is ready

Obi-Wan: I am ready to face the trials.

So, Obi-Wan wanted to face the trials and change his rank from Padawan to Jedi Knight... Later, after the battle on Naboo we see Yoda granting Obi-Wan the rank of Knight after he killed Darth Maul...

The image has been altered with a CGI Yoda, but it was the only pic I found from the scene :)

Yoda: Confer on you the level of Jedi Knight, the Council does...

Since, judging by the background they are still on Naboo, should we assume Obi-Wan never faced the trials to change rank? I can see how killing a Sith Lord is a huge trial, but isn't ther any protocol in this matter?