java - Our project contains 2600 class files - where and how should we start writing junit tests? -


There are 2600 square files in our project and we have decided to start using automated tests.

We know that we have to start this 2599 class files first, but how and how to start big projects should start?

Pick a random class and just go?

What is important to know? Is there a good tool to use?

Write a unit test before making some changes, and you encounter for every bug.

In other words, test the functionality that you are currently working on. Otherwise, it is going to take a lot of time and effort to write tests for all classes.


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