Thread: Is integration testing is related to developer or tester

Integration testing is testing of combined parts of an application to determine if they function together correctly. The 'parts' can be code modules, individual applications, client and server applications on a network, etc. This type of testing is especially relevant to client/server and distributed systems

a long debate I guess.

It definitely depends on the organizational structure.
At developer side: Once the modules/submodules are done they will integrate all of them making into a build and release this to the Testing Team. But prior to this the integrator(the person who has been assigned with this task) will test the integration done by him.

At Tester's End:
The Tester who exactly recieving the build/one performing the smoke test will also check the build as per the integration norms.

But some companies do have their own Integration Team if they have large number of integrations to be done(may be frequently). If such a team exists, then the Team is included with a Tester also whose prime job is to do Integration Testing.

Integration testing is performed by testers` and unit testing is done be developers.