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AssertJ @assertj.github.io · 2d

It's great to see the community actively watching over the early development of AssertJ 4!

Jfokus @jfokus.se · 3d

🧪 Deep Dive Monday at #Jfokus - Break Your Testing Habits with Tim te Beek & Rick Ossendrijver

Unlearn the old, master the new - JUnit 6, AssertJ 4 & modern testing practices.
Forge your path in the halls of code ⚡
👉 www.jfokus.se

#DeveloperConference #Java #Testing #JUnit #AssertJ #CleanCode

1 4

Reposted by AssertJ

Ted M. Young (he/him) aka @JitterTed @ted.dev · 5d

btw, if you run a user group/meetup and want me to present any of my talks (on Testable Architecture, Event Sourcing, etc.) to your group (remotely or in person in the SF Bay Area), let me know!

See my Ted Talks page: ted.dev/talks

#Java #EventSourcing #JUnit #AssertJ

My Presentations | Ted M. Young

Articles, Videos, Training, and Coaching for Java Developers

ted.dev

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AssertJ @assertj.github.io · 12d

Many thanks to our new sponsor, LambdaTest!

www.lambdatest.com

LambdaTest - AI Powered Testing Tool | AI Testing Agents On Cloud

Power your software testing with AI and cloud. Test intelligently, deploy and scale faster with LambdaTest unified testing platform.

www.lambdatest.com

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AssertJ @assertj.github.io · 19d

📢 AssertJ 3.27.6 has been released!

This fixes a 🐛 regression related to the module descriptor 🧩

Happy assertions!

github.com/assertj/asse...

Release v3.27.6 · assertj/assertj

🐛 Bug Fixes Core Add missing export for org.assertj.core.annotation #3951 ❤️ Contributors Thanks to all the contributors who worked on this release: @duponter

github.com

8 9

AssertJ @assertj.github.io · 23d

📢 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...

Release v3.27.5 · assertj/assertj

⚡ Improvements Core ByteBuddy in AssertJ 3.27.4 not compatible with Java 25 #3946 🔨 Dependency Upgrades Core Upgrade to Byte Buddy 1.17.7 #3947 Upgrade to JUnit BOM 5.13.4 #3947 Guava Upgrade ...

github.com

10 15

Reposted by AssertJ

dev2next.bsky.social @dev2next.bsky.social · 23d

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!

2 3

Reposted by AssertJ

Spring I/O @springio.net · 29d

🍃 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

Better Assertions with AssertJ by Tim te Beek @ Spring I/O 2025

YouTube video by Spring I/O

youtu.be

6 10

Reposted by AssertJ

Elias Nogueira 🇧🇷🇳🇱 @eliasnogueira.com · Aug 21

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

Assert with Grace: Custom Soft Assertions using AssertJ for Cleaner Code - Elias Nogueira

Introduction If you don't know what a soft assertion is, please read Soft Asserts – Why should you use them for Unit and Integration tests? This article is a continuation of Assert with Grace: Custom…

eliasnogueira.com

5 10

AssertJ @assertj.github.io · Aug 16

`satisfies(Consumer...)` is an effective option for executing assertions with the same root instance, while soft assertions allow executing assertions on multiple unrelated instances.

1 3

Reposted by AssertJ

Todd Ginsberg @todd.ginsberg.com · Aug 15

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

1 3 8

Reposted by AssertJ

Tim te Beek @timtebeek.github.io · Aug 7

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

Screenshot showing accepted hands on lab of two hours called Breaking your testing habits, presented by Rick Ossendrijver and Tim te Beek.

1 1 13

AssertJ @assertj.github.io · Aug 7

📢 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...

Release v3.27.4 · assertj/assertj

🚫 Deprecated Core Deprecate org.assertj.core.annotations.Beta in favor of org.assertj.core.annotation.Beta Deprecate org.assertj.core.util.CanIgnoreReturnValue in favor of org.assertj.core.annotat...

github.com

7 12

Reposted by AssertJ

Elias Nogueira 🇧🇷🇳🇱 @eliasnogueira.com · Aug 4

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

Assert with Grace: Custom Soft Assertions using AssertJ for Cleaner Code - Elias Nogueira

Introduction If you don't know what a soft assertion is, please read Soft Asserts – Why should you use them for Unit and Integration tests? This article is a continuation of Assert with Grace: Custom…

eliasnogueira.com

6 11

AssertJ @assertj.github.io · Jul 31

Something is brewing ☕

github.com/assertj/asse...

4 6

Reposted by AssertJ

OpenRewrite by Moderne @openrewrite.github.io · Jul 24

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/...

Release 3.12.1 · openrewrite/rewrite-recipe-bom

What's Changed OpenRewrite v8.59.1 rewrite-gradle-plugin v7.12.1 rewrite-maven-plugin v6.15.0 Full Changelog: v6.15.0

github.com

5 13

AssertJ @assertj.github.io · Jul 14

The AssertJ Recursive Comparison might be a good candidate for your use case:
assertj.github.io/doc/#assertj...

An AssertJ code snippet that demonstrates how the recursive comparison can be used to ignore fields of a specific type:

```
record Person(String name, Instant birthday) {}

@Test
void test() {
var person1 = new Person("John", Instant.EPOCH);
var person2 = new Person("John", Instant.now());

assertThat(person1)
.usingRecursiveComparison()
.ignoringFieldsOfTypes(Instant.class)
.isEqualTo(person2);
}
```

2 18

AssertJ @assertj.github.io · Jul 13

Hi @mrdofu.bsky.social, we're discussing it within the team.

Feel free to keep an eye on github.com/assertj/asse....

Release 0.5.0 · Issue #232 · assertj/assertj-vavr

Hi @mchmielarz and @pivovarit, a user on BlueSky asked when the 0.5.0 release for assertj-vavr will happen. Any new release under the AssertJ namespace will need to be done via the Sonatype Central...

github.com

1

AssertJ @assertj.github.io · Jun 15

Should we establish a dedicated space for the AssertJ community on Gitter?

Cast your vote!

github.com/orgs/assertj...

Should AssertJ be on Gitter? · assertj · Discussion #3855

Sometimes, users and contributors would like to engage more interactively with both maintainers and the rest of the community, and communicating via GitHub might feel intimidating.

github.com

2 2

Reposted by AssertJ

Stefano Cordio @scordio.github.io · Jun 2

📆 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

Trainings:
Git /GitHub

Projects:
AssertJ (Java)
Cucumber (C++)
Harbor CLI (Go)
JReleaser (Java)
OpenFeature (Java, JavaScript, Go, Python, ...)
Spring Batch (Java)
vmlens (Java)

3 3

Reposted by AssertJ

Tom Cools @tomcools.be · Jun 5

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...

Simplify Your Java Tests with Recursive Comparison 🧪 🧼

In Java, writing tests often involves comparing objects to ensure they meet expected conditions. Typically, developers use assertions to…

medium.com

5 15

Reposted by AssertJ

Tim te Beek @timtebeek.github.io · May 22

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

2 18

Reposted by AssertJ

Moderne.ai @moderneai.bsky.social · May 20

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...

5 10

Reposted by AssertJ

Julien Roy @julienroy.bsky.social · May 17

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

#AssertJDB #AssertJ #tests

youtu.be

3 5

Reposted by AssertJ

Petri Kainulainen @petrikainulainen.bsky.social · May 13

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.

Writing Unit Test With MockMvcTester: Returning an Object as JSON - Petri Kainulainen

This blog post helps us to identify the required test cases and describes how we can write unit tests for a Spring MVC REST API endpoint that returns an object as JSON.

www.petrikainulainen.net

2 2

Reposted by AssertJ

Stefano Cordio @scordio.github.io · May 13

📆 One month left!

Join us for a full day of open source on June 13th!

Andres Almiray @andresalmiray.com · May 12

Friends in 🇪🇺, we’re hosting another Hack.Commit.Push event in Winterthur🇨🇭 on June 13th

Would you like to join us?

winterthur2025.hack-commit-pu.sh

hack-commit-push · One Day to Contribute to Open Source

winterthur2025.hack-commit-pu.sh

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