Arsenal headed into the game having beaten just Hull City and lower league sides Sutton United and Lincoln City since the end of January, against a backdrop of fan unrest over the side's form and the unresolved issue of Wenger's future.
The players' character has been questioned in recent weeks, notably after one-sided defeats by Bayern Munich, and their nerves were evident early on as Leroy Sane capitalised on Arsenal's disorganised defensive unit to fire City ahead in the fifth minute.
"We started very nervously," Wenger acknowledged to Sky Sports. "We had a refusal to lose the game, we were ready for a fight.
"The test was mental. We had to come back after halftime and we got a point after a time that has been so stressful for us," he added. "It was a strong performance on the mental front.
"Technically we can do better."
Despite Wenger's praise, there were familiar signs of petulance and uncertainty from Arsenal's players, with goalscorer Walcott trudging off unhappily after being substituted, and Mesut Ozil guilty of pulling out of a 50-50 challenge with Willy Caballero when through on goal.
Read the full article on eurosport.co.uk: Arsenal passed mental test, says Wenger