Many developers will have strong opinions on unit testing. If you are considering using unit tests in your code, then start by understanding why unit tests are useful and sometimes necessary.
Breaking down your code’s functionality into smaller, testable units of behavior allows you to create and run unit tests. Unit tests will increase the likelihood that your code will continue to work as expected, even though you have made changes to the source code. In this chapter, we will have a look at
Creating and running unit tests
Using live unit tests
Using IntelliTest to generate unit tests ...
