Test intuition-.
Sometimes, the sensation that we are being cheated is itself a proof of something failing. Our intuition tells us that. Our conscious mind may fail to take the tips but the subconscious will do. So while taking this test don't overlook the inner signals.
Test cheating patterns-.
Did you discover your partner speaking to someone on phone and after that detach the phone as quickly as they saw you? Is your partner cautious of sharing the mail password with you? Are you finding that their cell phone bills are more than normal? Do they head out without notifying you and make some excuse when you ask? Are any outdoors company trips involved? What about late work at the workplace? Or unscheduled work related meetings? Do they look at you eye to eye while talking? Or avoid talking and walk around while talking? Do you hear telephone bell and when you get the phone, line goes dead?
Test and get the reality-.
These are some of the indications that something might be incorrect? Not necessarily cheating. Why not quiz your partner and discover the reality? Quizzing point by point will certainly inform you the fact.