Croatian goalkeeper Stipe Pletikosa was playing his second trial game following the match against Cardiff last week.
South African striker Katlego Mphela started in attack and was replaced at the break by Slovakian forward Milos Lacny.
Afterwards, the Celtic boss hinted that Pletikosa perhaps had the better chance of securing a deal but kept his cards close to his chest.
"They did okay," Lennon said. "It was difficult for them, to get 45 minutes and not really play that much with the players before.
"Mphela was unlucky with a header and Lacny unlucky with a couple of chances so they showed bits and pieces.
"The 'keeper did okay again, he was confident and assured and I don't think I could really point the finger at him for the first goal.
"It has gone through the wall and if it does its job properly we prevent it.
"We will speak to them over the next couple of days, probably before we go to Dublin.
"I will probably not make a decision until tomorrow.
"We need a goalkeeper in. Stipe is in the driving seat, he has not done a lot wrong.
"I can't give you an answer tonight, we will talk about it tomorrow.
"I haven't had a chance to speak to Woodsy yet (Stevie Woods, goalkeeping coach) he was up having a good look at him from a different angle from he.
"He knows more about goalkeeping than me so I will talk to him."
Jamie O'Hara's free-kick after 28 minutes gave the Barclays Premier League club the interval lead and an own goal in the 72nd minute by Hoops second-half substitute Filip Twardzik, on for Cha Du-ri, confirmed the win for the visitors.
Lennon, looking forward to the Dublin Cup at the weekend, said: "It was a good test against an experienced Premier League team.
"There were a lot of positives for me, we created some really good chances and made the 'keeper work.
"I was disappointed with the goals, we didn't do our job properly with the free-kick, the ball went through the wall, but I can't be over-critical.
"James Forrest was outstanding in the second half, as was Adam Matthews, Charlie Mulgrew, and Victor Wanyama came on to a game.
"So there were a lot of good things to come out from the younger players."
Wolves manager Mick McCarthy, a former Celtic skipper, enjoyed his return to the east end of Glasgow and was impressed with the performance of former Molineux player Mulgrew.
He said: "I thought Charlie Mulgrew was excellent, he came through us on the left.
"He wasn't half the player at our place.
"He left as a kid from Celtic, maybe coming to Wolves wasn't sexy enough.
"But I admired him because he went back to Aberdeen and he has re-built his career."
McCarthy added: "Just coming here and winning was a positive, without picking out anyone in particular."