what is black box texting
is functional testing carried out independently of the code used in the program
#it covers allthe inputs,outputs and program functions
what is white box testing
is structural testing carried out dependent on the code logic and derives from the program structure rather than its function
#the program is studied and test each possible path at least once.
what is one disadvantage of black box testing
You cannot see the program logic so cannot fix the logic errors
what is one disadvantage of white box testing
It does not detect missing functions