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Unit testing is an essential practice in software development, focusing on testing individual components or modules to ensure they function as expected. It helps identify issues early, improves code quality, and simplifies future maintenance. In this article, we’ll explore everything about unit testing , starting with its definition and purpose, followed by its advantages, challenges, and best practices. Let’s begin with What is Unit Testing . Unit testing is the process of testing the smallest parts of your code, like it is a method in which we verify the code's correctness by running one by one. It's a key part of software development that improves code quality by testing each unit in isolation. What is Unit Testing ? Unit testing is a software testing method where individual components, or units, of a software application are tested in isolation to confirm they work as intended. A unit is typically the smallest part of an application, such as a function, method, or class, and tests are primarily written by developers to ensure that each piece of code performs correctly based on its specifications. Learn how unit testing works, see examples of unit tests in popular frameworks, and learn see how to make your unit testing more effective.
