Unit Testing

Refactor with Tests you own this product

This project is part of the liveProject series Unit Testing with Java, JUnit 5, and IntelliJ IDEA
prerequisites
Intermediate Java, JUnit 5, Mockito
skills learned
Changing the design of existing code while supported by tests, Changing test suites to take advantage of better designs
Max Guernsey, III
1 week · 10 hours per week · INTERMEDIATE

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Look inside
In this liveProject, you’ll learn to use a battery of tests to support changing the design of some legacy code in preparation for adding new functionality. You’ll refactor your production code based on advice from your architecture team. Because you have a broad test suite, you will be able to change your design without fear of accidentally breaking a required behavior. The output will be a system that can more easily withstand incoming requirements changes and against which you can write smaller, more meaningful tests.
This project is designed for learning purposes and is not a complete, production-ready application or solution.

book resources

When you start your liveProject, you get full access to the following books for 90 days.

project author

Max Guernsey, III

Max Guernsey has over twenty years of experience in software development and is currently a managing member at DevCraft LLC. He has worked on a wide range of products and technologies, including C++ class libraries, financial analysis applications, C# and Java backends, and even multi-platform video games. He is an experienced consultant and his "coaching from the keyboard" approach provides hands-on experience to learners in all aspects of modern software development.

prerequisites

This liveProject is for Java developers who want to increase their testing capabilities. To begin this liveProject you will need to be familiar with:

TOOLS
  • Intermediate Java
  • JUnit 5

you will learn

In this liveProject, you’ll learn to write high-quality tests to take account of new requirements for legacy code.

  • Changing the design of existing code while supported by tests
  • Changing test suites to take advantage of better designs

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book resources
Get full access to select books for 90 days. Permanent access to excerpts from Manning products are also included, as well as references to other resources.

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