What is the purpose of unit testing?
Unit testing is an essential practice in software engineering. However, unit testing requires automated testing tools, as manual unit testing is too time-consuming. Furthermore, when developers fail to implement unit tests, they risk encountering defects at later stages of development—for example, during system integration or beta testing—when such problems are much more expensive to fix.
Read more about Unit Test Framework for Java Difference between C# Unit Test Framework
Angular is considered to be one of the best web development frameworks. It comes with in-built Unit testing tools like Jasmine and Karma for automated Unit testing.