Complete Guide To Java Testing with JUnit 5 & Mockito

This is the repository for the LinkedIn Learning course Complete Guide To Java Testing with JUnit 5 & Mockito. The full course is available from LinkedIn Learning.

Course Description

In this comprehensive course, software developer Kathryn Hodge covers critical aspects of software testing in Java development. Learn about writing Java tests with JUnit 5, AssertJ, and Mockito frameworks. Find out how to write automated tests with assertions, explore the test lifecycle, use rich assertion sets with detailed failure messages, mock objects, stub methods, and verify interactions. Dive into testing Spring Boot applications, including repositories, services, controllers, integration testing, and mocking external dependencies. By the end of this course, you'll gain a solid understanding of testing methodologies and tools to ensure the quality and reliability of your Java applications.

See the readme file in the main branch for updated instructions and information.

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

Kathryn Hodge

Software Developer

Check out my other courses on LinkedIn Learning.