With my friends (we are french) we always say: "Tester c'est douter" meaning something like: "If you test it's because you are not sure, you doubt" Or "Si ca co

With my friends (we are french) we always say: "Tester c'est douter" meaning something like: "If you test it's because you are not sure, you doubt" Or "Si ca compile, ca marche !" = "If this code compile, it works!"