Unit Testing | JUnit | NUnit | PyTest
Unit testing is a software testing technique in which individual units or components of a software application are tested in isolation from the rest of the application. The goal of unit testing is to verify that each unit of the application works as intended and meets the requirements for which it was developed.
Unit tests are typically written by developers as the code is written and automatically run whenever the code is changed to ensure that the code continues to work correctly. In this way, errors are detected at an early stage of the development process, before they can develop into serious problems.
Unit testing is used to ensure the quality and reliability of an application. They help identify problems early in the development process so developers can fix them before the application is released. This can save time and resources by identifying problems early and avoiding costly and time-consuming troubleshooting at a later stage.
There are many technologies and tools for unit testing, including frameworks such as JUnit for Java, NUnit for .NET, and PyTest for Python. These frameworks provide a way to write and run unit tests, track their results, and report bugs. In addition, there are many other tools and technologies to support unit testing, such as code coverage tools, mocking frameworks, and test runners.
BITS experts have used unit testing in a wide range of projects. A selection of case studies and references can be found below.
