What is the Benefit of Using Different Testing Levels?

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Software testing has its own structure, order and is carried out using special methods. There are only 4 such testing levels. It is modular, integration, system and acceptance. Let's analyze each level separately. Unit testing Unit testing is used to investigate each individual element or object of the system. To find bugs using unit testing, you need to know how the program as a whole works and what the functionality of each individual module is. This level of testing is used more by programmers than by testers. They create special test codes with which you can check whether the software fulfills its purpose. Integration testing If unit testing is a test of each individual module, then during integration testing, QA checks how individual modules interact together, that is, integrating with each other.Integration testing is most suitable for finding bugs in the development of the system interface. And most often in this level of testing, a top-down approach is used, when the system is checked by the architectural structure.

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