Java: Practice Unit Testing

This is the repository for the LinkedIn Learning course Java: Practice Unit Testing. The full course is available from LinkedIn Learning.

The beauty of test-driven development is that it allows you to iterate your codebase one step at a time, testing and reworking individual cases as you go. Not only does this reduce the likelihood of bugs and errors, it also helps you write more effective and more reliable code.

In this course, instructor Bethan Palmer covers the essentials of unit testing in Java to showcase the benefits of test-driven development. Explore practical topics including common assertions, comparing arrays, and testing exceptions as well as some of the more advanced features of JUnit, the Java unit testing framework that lets you run parameterized tests. Along the way, take advantage of the opportunity to practice writing your own unit tests with hands-on, interactive coding exercises in GitHub Codespaces.

Instructions

This repository has branches for each of the videos in the course. You can use the branch pop up menu in github to switch to a specific branch and take a look at the course at that stage, or you can add /tree/BRANCH_NAME to the URL to go to the branch you want to access.

Branches

The branches are structured to correspond to the videos in the course. The naming convention is CHAPTER#_MOVIE#. As an example, the branch named 02_03 corresponds to the second chapter and the third video in that chapter. Some branches will have a beginning and an end state. These are marked with the letters b for "beginning" and e for "end". The b branch contains the code as it is at the beginning of the movie. The e branch contains the code as it is at the end of the movie. The main branch holds the final state of the code when in the course.

When switching from one exercise files branch to the next after making changes to the files, you may get a message like this:

error: Your local changes to the following files would be overwritten by checkout:        [files]
Please commit your changes or stash them before you switch branches.
Aborting

To resolve this issue:

Add changes to git using this command: git add .
Commit changes using this command: git commit -m "some message"

Instructor

Bethan Palmer

Software Developer

Check out my other courses on LinkedIn Learning.