📢 AssertJ 3.27.6 has been released! This fixes a 🐛 regression related to the module descriptor 🧩 Happy assertions! github.com/assertj/asse...

📢 AssertJ 3.27.5 has been released! This 🛠️ upgrades ByteBuddy to its latest version to ensure smooth compatibility with Java 25 ☕ Happy assertions! github.com/assertj/asse...

Messy tests make messy code. In this session @ted.dev shows how to refactor JUnit tests with AssertJ, builders & patterns to keep them clear, lean & powerful. 🚀 www.dev2next.com/speaker/af08... 🎟️ Secure tickets at dev2next.com 👀 Use code JOIN-TED-M.Y-50OFF for a discount!

🍃 Better Assertions with AssertJ by @timtebeek.github.io @ Spring I/O 2025 ▶️ Video: youtu.be/k7sXn1v4fYc 🔗 Slides: 2025.springio.net/slides/bette... 🛠️ Repo: github.com/timtebeek/be... #springio25

Hard assertions = fast feedback ✅ But when one failure hides others, you lose valuable insight. 😥 Here’s how to use custom soft assertions with AssertJ to make your tests graceful, readable, and thorough: eliasnogueira.com/assert-with-... #java #testing #quality

Last morning talk at #KCDC2025: @jeanneboyarsky.bsky.social is teaching us about testing beyond JUnit. Here, she’s covering @assertj.github.io

Excited to return to @devoxx.com with @rickossendrijver.bsky.social ! See you there to modernize your test suite 🚀

📢 AssertJ 3.27.4 has been released! This fixes a 🐛 regression introduced in 3.26.0, brings a few minor 🚫 deprecations, and paves the way for ⚡ smoother NullAway integration. Happy assertions! github.com/assertj/asse...

Want cleaner, more expressive tests in Java? ✅ Avoid endless try-catch ✅ Group failures with elegance ✅ Use AssertJ the right way Soft assertions can raise your testing game without clutter. Learn how: eliasnogueira.com/assert-with-... #java #quality #test #qualityengineering

Something is brewing ☕ github.com/assertj/asse...

OpenRewrite v8.59.1 is here! 🏖 ☸️ Parse Helm templates ⭐ Additional Groovy features 🧑‍🏫 More AssertJ best practices 🌀 Simplify annotation attributes 🪶 Tolerate invalid POMs ♻ Remove with Refaster 🔬 New static analysis recipes 🐞 Many smaller improvements & fixes github.com/openrewrite/...

Should we establish a dedicated space for the AssertJ community on Gitter? Cast your vote! github.com/orgs/assertj...

📆 Only two weeks until Hack.Commit.Push, on June 13th in Winterthur!🇨🇭 Join us for a day of learning, sharing, and contributing to Open Source 🧑‍💻 winterthur2025.hack-commit-pu.sh

FYI, if you need to compare 2 objects in a #java test, do not manually compare all fields by calling the getters. Instead, do it with 1 line of AssertJ: medium.com/@lucascalebe...

Join me in fifteen minutes for Better Assertions with AssertJ @springio.net room 5!

The Moderne world tour continues! ✈️ Next up, meet us at @springio.net ‬in beautiful Barcelona, May 22-23. 🤝 Don't miss @timtebeek.github.io's session, "Better Assertions with AssertJ" ☕ Details: 2025.springio.net/sessions/bet...

If you need a quick introduction to AssertJ-DB, my talk at Devoxx is available on youtube : youtu.be/XILu4r3rIEc #AssertJDB #AssertJ #tests

Learn to write unit tests for a #SpringBoot REST API endpoint that returns an object as JSON. This guide identifies the key tests, shows how to eliminate duplicate request building code, and demonstrates how to write the required assertions with MockMvcTester and AssertJ.

📆 One month left! Join us for a full day of open source on June 13th!

l'd be happy to help you get started with an AssertJ contribution, and there'll be other cool projects too-don't miss the opportunity!

A Practical Guide to Testing Spring Controllers With MockMvcTester blog.jetbrains.com/idea/2025/04...

OpenRewrite v8.50.2 is here! 🎉 🐘 Gradle Kotlin DSL recipes 🌟 Groovy parser improvements 🔀 Expand JavaTemplate & Refaster support 🧪 New recipes for AssertJ & JUnit 5 🍃 Recipes for Spring Framework 6.2 & Spring Batch github.com/openrewrite/...

And here we are! #VDZ25

I agree with what they said. Most of @spring.io uses AssertJ. Even some custom asserters too!

+1000 to AssertJ. Have even built my own customer asserters for my own domain to give more fluent assertions

Have you looked into AssertJ? It's my favorite assertion library for Java, typesafe overloads of assertThat(...) make for great auto-completion.

This year, you might see @jocosti.bsky.social and me in the crowd! Here's your chance to complain about that AssertJ feature you're missing, directly to the source! 😆 We're also happy if you just come over and say hello!

📢 AssertJ 4.0.0-M1 has been released! 🚀 Required Java version increased to 17 🧩 Module-only build and modular Javadoc 🚫 Existing deprecations marked for removal Happy assertions! github.com/assertj/asse...

This is finally done! To see how we put together in-module and extra-module testing, check github.com/assertj/asse....

Want to know more about AssertJ-DB? Here's your chance to meet the project lead at @devoxxfr.bsky.social !

Someone has expressed interest and started working on AssertJ support for Eclipse Collections. The wonders of open source. 🙏 github.com/eclipse-coll...

📢 AssertJ 3.27.3 has been released! This delivers a 💥 breaking change that reverts a feature from 3.27.0 incompatible with @kotlinlang.org 1.9. Happy assertions! github.com/assertj/asse...

📊 Custom assertions = cleaner code! Learn how to create more readable and maintainable Java tests with @assertj.github.io 👉🏻 Full article: https://buff.ly/3VSI5OE #java #testing #assertj

📢 Here we go with AssertJ 3.27.2, the "final-final" 3.x release! This fixes a 🐛 regression introduced in 3.27.0. Happy assertions! github.com/assertj/asse...

📢 AssertJ 3.27.1 has been released! A few 🚫 deprecations and 🐛 bug fixes to celebrate the new year 🎇 This also marks 3.x entering maintenance mode and the beginning of 4.x development 🚀 Many thanks to all contributors and happy assertions! github.com/assertj/asse...

⚙️ Elevate your Java testing with custom assertions using AssertJ! Clean up your test cases and improve readability. 👉🏻 Guide here: https://buff.ly/3VSI5OE #java #testing #assertj

We've received a lot of input on this topic from different sources. Thank you all! As a result, we've decided that version 4 will require Java 17, and version 3 will go into maintenance mode after 3.27.1.

For AssertJ 4, we wanted to upgrade to Java 17. However, we are discussing whether to stay on 8 or upgrade to 11. The main reason is to keep our effort reasonable and continue supporting users who cannot upgrade yet (e.g., RHEL 7 users under ELS). Any strong reason to keep upgrading to Java 17?

Absolutely, and thanks for sharing! Here's the migration recipe for anyone looking to do the same docs.openrewrite.org/recipes/java...

Used @openrewrite.github.io to replace all assertions in EqualsVerifier's unit tests with @assertj.github.io assertions. It only took a few minutes thanks to OpenRewrite, and I really like the expressiveness I gain with AssertJ! #java

AssertJ 3.27.0 has been released! • One 🚫 deprecation • Many ✨ new features, ⚡️ improvements, and 🐛 bug fixes Many thanks to all contributors and happy assertions! github.com/assertj/asse...

Awesome #AssertJ: Using Our Own Assertions Class blog.mrhaki.com/2024/10/awes... #Java #Testing

AssertJ support and fluent APIs with MockMvcTester 😍

Spring Boot 3.4 is available, with plenty of new features! Support for AssertJ in MockMvc lets you write requests with a fluent API and uses the powerful AssertJ API for assertions. See also the documentation: https://buff.ly/4fYtVmt #spring @spring.io

For my first post on Bluesky, I'm really happy to announce that I just released AssertJ-DB 3.0.0 with some major changes: - Cacheable database schema metadata - Fluent API The cache feature should really speed up your test suite if it contains a lot of change assertions github.com/assertj/asse...

`extracting(Function...)` is now smarter thanks to four amazing first contributors! github.com/assertj/asse...

Getting ready! Get in touch if you'd like to work together on AssertJ or Spring Batch Notion 👨‍💻

Hello World! 👋

もう出たのか MockMvcTesterでついにHamcrestベースの書き方からAssertJベースの書き方に移行できるようになるのね これはけっこう嬉しい spring.io/blog/2024/11...

🍃 MockMvcTester 💚