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#JUnit 6.0.0-M1 is ready for testing!

✨ Require Java 17 and Kotlin 2.2
🌄 JSpecify nullability info
🚟 Kotlin suspend function support
🛫 Integrated custom JFR events
🚅 FastCSV-backed Csv{File}Source
🧹 Remove deprecated APIs and behaviors

https://junit.org/junit5/docs/6.0.0-M1/release-notes/

#JUnit Logo Contest Update

Here are some of the top contenders.

Please let us know your thoughts.

And additional proposals are welcome!

https://github.com/junit-team/junit-framework/issues/4576

#JUnit 5.13.2 is released!

⚠️ Fix discovery issue detection for inner classes and abstract methods
🐞 Bug fixes and minor improvements

https://junit.org/junit5/docs/5.13.2/release-notes/

So happy that @marcphilipp got accepted into the @JavaChampions program. Congratulations!

There are more people on the #JUnit core team that did so much of incredible value to the ecosystem, they literally walking the talk.

⚠️ It's official: the #junit5 GitHub repository is gone!

Well, actually... it's only been renamed to #junit-framework. 😎

Plus, everything should redirect fine. 🙈

https://github.com/junit-team/junit-framework

We really need a new #JUnit logo! 🤣

Proposals are welcome!

https://github.com/junit-team/junit5/issues/4576

Je suis au #DevLille, et le premier talk que je voie parle de tests concis et évolutifs grâce à #JUnit 5, présentés par une contributrice du projet.

Parameterized test class support has landed in JUnit. Read all about it in this blog post by JUnit maintainer @marcphilipp: https://www.marcphilipp.de/blog/2025/06/07/stf-milestone-4-parameterized-test-classes/

#java #junit #testing #opensource #release

Know What You’re Testing: Mastering Code Coverage in Quarkus with JaCoCo
A hands-on guide for Java developers to generate, visualize, and improve test coverage in Quarkus applications
https://myfear.substack.com/p/quarkus-jacoco-test-coverage
#Java #Jacoco #Testing #Junit #CodeQuality

If you're using #JUnit 5.13, I suggest you pay attention to discovery issues!

Run your build once with:

-Djunit.platform.discovery.issue.severity.critical=INFO

And see if your build fails. 🕵🏻‍♂️

NOTE: the default critical severity may change in 6.0.

✨ New blog post: "STF Milestone 4: Parameterized test classes"

#JUnit 5.13 introduced parameterized test classes (in addition to methods). They are a powerful testing tool that has long been missing from JUnit Jupiter. I’m super happy that I’ve finally had the chance to resolve this long-standing and highly-voted issue thanks to the @sovtechfund.

👉 https://marcphilipp.de/blog/2025/06/07/stf-milestone-4-parameterized-test-classes/

@ParameterizedClass
@ValueSource(strings = {"foo", "bar"})
class SomeTests {
@Parameter String value;

@Test
void shouldNotBeNull() {
assertNotNull(value);
}
@Test
void lengthShouldBeThree() {
assertEquals(3, value.length());
}
}

#JUnit 5.13.1 is released!

🐞 Fix regressions introduced in 5.13.0

https://junit.org/junit5/docs/5.13.1/release-notes/

The slides and code examples for my talk about #JUnit at #IntelliJIDEAConf are now available on https://marcphilipp.de/en/talks/

Catching Up With #JUnit by @marcphilipp at #IntelliJIDEAConf #Java

https://www.youtube.com/watch?v=qg6tj8Tf36E

UTC: 12:00
Hierzulande: 14 Uhr

Since we've already started work on #JUnit 6, I guess it's time to change "JUnit 5 committer" in my profile to simply "JUnit committer" on this platform. 😉

#JUnit 5.13.0 is released!

🪄 ClassTemplate and ParameterizedClass support
⚠️ Discovery issue reporting for test engines
♻️ Resource management for launcher sessions and execution requests
🔍 Test discovery support in EngineTestKit
👾 ConsoleLauncher improvements

https://junit.org/junit5/docs/5.13.0/release-notes/

My favorite IDE is now officially set up for work on #JUnit 6! 😎

Consider this #ClickBait if you dare, but don't expect me to reply. 🤣