What is Test Class?

The term 'Test Class' is commonly used in software development and testing. It refers to a class specifically designed to test the functionality of another class or a group of classes (a unit) within a software application. A test class typically contains multiple test methods, each designed to verify a specific aspect of the code being tested. These test methods use assertions to compare the actual output of the code with the expected output, thereby determining if the code is working correctly. The purpose of a Test Class is to automate and standardize the testing process, ensuring code quality, reliability, and maintainability through continuous testing and validation.