JUnit Team 💙💛

#JUnit 6.0.0-M2 is ready for testing!

📰 Everything in 6.0.0-M1
🛑 Support for cancelling test execution
⏭️ New `--fail-fast` mode for ConsoleLauncher
🦺 Null-safe `computeIfAbsent` methods for stores
🧐 Strict evaluation of enum-based configuration parameters

junit.org/junit5/docs/...

#JUnit 5.13.4 is released!

🐞 Bug fixes and minor improvements

junit.org/junit5/docs/...

#JUnit 5.13.3 is released!

🐞 Bug fixes and minor improvements

junit.org/junit5/docs/...

If you ever need to adapt a #JUnit3 TestSuite to run directly in #JUnit #Jupiter, it's actually possible with dynamic tests! 😎

Here's how I run the @⁠Inject TCK in the @SpringFramework.

github.com/spring-proje...

Kudos to @marcphilipp.de for suggesting the dynamic test idea.

#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

junit.org/junit5/docs/...

#JUnit Logo Contest Update

Here are some of the top contenders.

Please let us know your thoughts.

And additional proposals are welcome!

github.com/junit-team/j...

Très heureux de voir le retour de @jderancourt.bsky.social sur scène de l'équipe @junit.org, qui nous présente "Rendre ses tests concis et évolutifs grâce à JUnit 5 & cie" au @breizhcamp.org !

#JUnit 5.13.2 is released!

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

junit.org/junit5/docs/...

We really need a new #JUnit logo! 🤣

Proposals are welcome!

github.com/junit-team/j...

@ParameterizedClass @ValueSource(strings = {"foo", "bar"}) class SomeTests { @Parameter String value; @Test void shouldNotBeNull() { assertNotNull(value); } @Test void lengthShouldBeThree() { assertEquals(3, value.length()); } }

✨ 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...

👉 marcphilipp.de/blog/2025/06...

#JUnit 5.13.1 is released!

🐞 Fix regressions introduced in 5.13.0

junit.org/junit5/docs/...

Talks • Marc Philipp Personal website

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

IntelliJ IDEA Conf 2025. Day 2 On June 3–4, 2025, JetBrains is hosting a free virtual event – IntelliJ IDEA Conf.IntelliJ IDEA Conf is a celebration of the developer community, bringing to...

Coming up soon at #IntelliJIDEAConf: @marcphilipp.de from the JUnit team walks you through the latest in JUnit 5.12 and 5.13, and what’s coming in 6.0.
Better reports, better tests, and new ways to structure them. Don’t miss it!
Watch here: youtube.com/live/qg6tj8T...

#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

junit.org/junit5/docs/...

Decide for and adopt new project logo · Issue #4576 · junit-team/junit5 Since the current logo contains the number 5, we need a new logo for 6.0. I think it would be good to involve the community in this, potentially via some kind of "logo contest". We should make it c...

The #JUnit team is looking for ideas and proposals for a new logo for the upcoming JUnit 6.0 release!

Please see github.com/junit-team/j... for ground rules.

We are looking forward to your comments and submissions!

So, do you still think that #JUnit 5 is "the new" thing?

It quite isn't.

The crowdfunding campaign for JUnit Lambda was ten years ago this year.

When we realised that last week at #JCON that made me feel old.

JUnit still rocks, though. Great #Java framework.

The single and only undisputed test framework in the Java ecosystem. Everyone relies on it. There were a few attempts like TestNG, but short lived. Spock relies on JUnit too. Everyone should appreciate.

#JUnit 5.13.0-RC1 is ready for testing!

🪄 ClassTemplate and ParameterizedClass support
⚠️ Discovery issue reporting for test engines
♻️ Resource management for launcher sessions and exec. requests
🔍 Test discovery support in EngineTestKit
🐞 Bug fixes and minor improvements

junit.org/junit5/docs/...

#JUnit 5.13.0-M3 is ready for testing!

⚠️ Reporting of discovery issues for test engines
♻️ Resource management for launcher sessions and execution requests

junit.org/junit5/docs/...

Netflix logo

A huge thank you to our new GOLD SPONSOR, @netflix.com! #supportJUnit

#JUnit 5.12.2 is released!

🐞 Fix regression when using CleanupMode.ON_SUCCESS

junit.org/junit5/docs/...

Promotional image for "Catching up with JUnit 5" workshop by Marc Philipp and Christian Stein at JCON 2025 featuring their avatars and a bunch of logos.

Together with @sormuras@mastodon.cloud, I will be hosting a workshop at @jcon@mastodon.social in Cologne on May 12. As you might have guessed, it's about "Catching up with #JUnit 5". See you there?
schedule.jcon.one/session/837895

(1/2)

#JUnit 5.13.0-M2 is ready for testing!

🐞 Fix regression introduced in 5.13.0-M1

junit.org/junit5/docs/...

This is the moment you've all been waiting for... 🥁

#JUnit Jupiter support for @⁠ParameterizedClass as a companion to the existing @⁠ParameterizedTest support! 🚀

@marcphilipp.de has put a lot of work into this, and we're eager for you to try it out and provide feedback!!!

STF Milestone 2: Open Test Reporting • Marc Philipp Personal website

✨ New blog post: "STF Milestone 2: Open Test Reporting"

Finally, a reporting format fully-compatible with JUnit (and other tools) and a new shiny HTML report generator.

👉 marcphilipp.de/blog/2025/03...

#JUnit 5.13.0-M1 is ready for testing!

🪄 Introduce ClassTemplate and ParameterizedClass support
🗒 Add stdout/stderr redirecting options to ConsoleLauncher
🔍 New test discovery support in EngineTestKit
🐞 Bug fixes and other minor improvements

junit.org/junit5/docs/...

#JUnit 5.12.1 is released!

🐾 Minor enhancements since 5.12.0

junit.org/junit5/docs/...

#JUnit 5.12.0 is released!

📎 Output file attachments for tests and containers
📰 Improvements to the Open Test Reporting XML output
🔒 Resource lock definition improvements
🧵 Thread dumps on test timeouts
✨ Numerous enhancements to existing features

junit.org/junit5/docs/...

#JUnit 5.12 RC2 is ready for testing!

📎 Output file attachments for tests and containers
📰 Improvements to the Open Test Reporting XML output
🔒 Resource lock definition improvements
🧵 Thread dumps on test timeouts
✨ Numerous enhancements to existing features

junit.org/junit5/docs/...

#JUnit 5.12 RC1 is ready for testing!

📎 Output file attachments for tests and containers
📰 Improvements to the Open Test Reporting XML output
🔒 Resource lock definition improvements
🧵 Thread dumps on test timeouts
✨ Numerous enhancements to existing features

junit.org/junit5/docs/...