The gaming software can be modified after a test, therefore a test is senseless!
But everyone can check if a game is rigged:
If your experienced house edge is higher than the advertised house edge plus maximal possible deviation, determined by the law of large numbers, than the gaming software is rigged!
oh look, it's the dumbass who doesn't even understand basic math or how the house edge works is saying big words to sound smart.
How does the casino collect the house edge?
A) Reduces the house edge from every bet amount
B) Via the number of bets a player loses more than it wins