Easy: It's set up ahead of time so that everybody in the testing area but the tested Warder knows, and afterwards, they're forced to take an Oath never to speak of it to people who don't already know about it. Simple! :P]<br/><br/>The test is less of a "skill" thing and more of a "mentality" thing. Are you willing to put yourself in danger to protect the Aes Sedai? If not, then you're not ready to be a Warder. It makes sense, considering that these are the people who are gonna be their bodyguards. :P