Question: What kinds of testing do you know? What is it system testing? What is it integration testing? What is a unit testing? What is a regression testing?

Answer: Integration testing: 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. System testing: System testing is black-box type testing that is based on overall requirements specifications. It covers all combined parts of a system. Regression testing : Regression testing is re-testing after fixes or modifications of the software or its environment. It can be difficult to determine how much re-testing is needed, especially near the end of the development cycle. Automated testing tools can be especially useful for this type of testing. Unit testing: Unit testing is the most micro scale of testing which is testing particular functions or code modules. Typically done by the programmer and not by testers, as it requires detailed knowledge of the internal program design and code
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