7/10/25 - WeAreDevs - TDD - It's easier than you think!

Everyone loves writing tests, don’t they? How do you write good tests? What tools are available for you to write good tests?

In this session, I will give a whirlwind introduction into the many features of Quarkus that help developers write good tests. I will highlight some of the features of Quarkus, Dev Services and Continuous Testing, which help make testing easier. Additionally, I will live code some tests for common use cases developers encounter, including unit, integration, and “black box” testing. I will discuss techniques such as mocking, spying, and interaction-based testing/verification.

I'll even spend some time showing how IDE-based AI assistants can help!

Once you see how easy TDD really can be there isn't a reason to not do it!

Transcript

1. It’s easier than you think! Eric Deandrea Java Champion Sr. Principal Developer Advocate @edeandrea Test-Driven Development
2. @edeandrea Who am I? ▸ Java Champion ▸ 26+ years software development experience ▸ Contributor to Open Source projects ･ Quarkus ･ Spring Boot, Spring Framework, Spring Security ･ LangChain4j & Quarkus LangChain4j ･ Wiremock ･ Microcks ▸ Boston Java Users ACM Chapter Board Member ▸ Published Author
3. @edeandrea • Showcase & explain Quarkus, how it enables modern Java development & the Kubernetes-native experience • Introduce familiar Spring concepts, constructs, & conventions and how they map to Quarkus • Equivalent code examples between Quarkus and Spring as well as emphasis on testing patterns & practices https://red.ht/quarkus-spring-devs
4. @edeandrea Why are we here today?
15. https://x.com/holly_cummins/status/1788138252572004441
17. @edeandrea Today’s challenge
18. https://bit.ly/tdd-easy
20. @edeandrea Additional resources
21. @edeandrea https://quarkus.io/blog/quarkus-superheroes-to-the-rescue https://github.com/quarkusio/quarkus-super-heroes https://github.com/quarkus-super-heroes-dev-ex Quarkus Superheroes
22. linkedin.com/in/edeandrea github.com/edeandrea bsky.app/profile/ericdeandrea.dev x.com/edeandrea Thank you! Danke!