What is stub and driver in integration testing ?
Explain with example.
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Answer Posted / raja
Integration testing: carrying out integration tests.
Integration tests (After Leung and White) for procedural
languages. This is easily generalized for OO languages by
using the equivalent constructs for message passing. In
the following, the word "call" is to be understood in the
most general sense of a data flow and is not restricted to
just formal subroutine calls and returns ? for example,
passage of data through global data structures and/or the
use of pointers.
Let A and B be two components in which A calls B.
Let Ta be the component level tests of A
Let Tb be the component level tests of B
Tab The tests in A's suite that cause A to call B.
Tbsa The tests in B's suite for which it is possible
to sensitize A -- the inputs
are to A, not B.
Tbsa + Tab == the integration test suite (+ = union).
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