Suppose there are three modules A-B-C, the output of A is
responsible for B and output of B is responsible for C and
if A & C is not ready & B module is ready then how can u
check Module B

Answer Posted / vivek

Well in this case comes the concept of STUBS and
Driver,here we can use a driver for B that will give the
input to B and a stub for Module C which will get the input
from Module B.
Driver is a piece of code that passes test cases to another
piece of code.
Stub A piece of code that simulates the activity of missing
components

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