Developer Testing two methods!

Question

hi I have two classes A and B B validates A. When testing would it be a better practise to test B then A and B together? or should i just test A and B straight away becuase B validated A? TY in Advance

Roei Bar · Answer

while building Unit Testing its recommended to test the lower level and not to mix 2 checkups. it is more wise to check A and B seperatly since A will act in different way then if B will Activate A since B activating A will result with Result B