What is Integration Testing

Integration testing refers to the phase in software testing in which individual software modules are fuse and try out as a group. It takes place after unit testing and before system testing. It takes its input modules after testing them,  groups them in larger aggregates, perform tests as per integration test plan to those aggregates, and delivers as its output.

Purpose

The purpose is to confirm the functional, performance, and reliability requirements placed on major design items. The “design items”, i.e. assemblages include groups of units, which need exercise through their interfaces using Black box testing. Test cases are created to test that all components within assemblages interact correctly. For example across procedure calls.

Agile Integration testing

Integration testing is a prime part of how an Agile team works. In many organizations, the teams devote their spare time to build the test harnesses needed to automatize the process so that it can perform outside of the teams’ core work hours. Testing makes their life easier in the long run and thereby helping them deliver more value. Further, when organizations begin to raise questions about the same and how it can work in an Agile environment, it is usually a sign.  To clarify, its a sign to add more technical techniques to the project management-oriented Agile framework.

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