There Was a Sword During Your Examination?

Opening the door, Zhang Xuan saw Elder Lu Yun and Dan Xiaotian looking at him with tense looks on their faces.

"What's wrong?" Zhang Xuan frowned upon seeing the solemn looks on their faces.

He just went in to have his swordsmanship evaluated. Was there a need for the two of them to be this worried?

On the other hand, Elder Lu Yun heaved a sigh of relief upon seeing that Zhang Xuan was unharmed, but he couldn't help but ask doubtfully, "You aren't injured?" 

"Injured?" Zhang Xuan was slightly baffled by Elder Lu Yun's abrupt question. "I just went in to try out my swordsmanship… Is there anything that could have injured me inside?"

Was there actually some kind of trick to this examination that requires the sword practitioner to pit his life on the line? So, if one didn't get injured, one's manifestation of Sword Intent wouldn't be able to get too far?