@instancio_java

https://nitter.cf/t.co/QnHQkNCCo3

github.com/instancio/instancio
Joined January 2023
  • Tweets145
  • Following24
  • Followers195
Claude just made the test suite pass by rewriting the failing test to test only part of the functionality --while retaining the original name, which implied the more stringent test
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🤔 Who said that AssertJ 3 is in maintenance mode? 📢 We're planning an exceptional 3.28 release – let us know what you'd like to see in there! 👇 github.com/orgs/assertj/disc…

Backport Scope for v3.28.0 · assertj · Discussion #4018

We recently talked about how version 4 still needs a bit more work and probably won't be ready until at least the first half of 2026. As Mr. Bull would say: Releasing a new major version is a r...

github.com
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Slash your @springframework integration test times! ⚡ Waiting forever for builds? Spring Test Profiler reveals why your Spring TestContext Caching is missing its mark. ✅ Identify cache misses ✅ Optimize test context reuse ✅ Get faster feedback Free & open-source! github.com/PragmaTech-GmbH/s…
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Instancio retweeted
Paul Graham
@paulg
23 Jul 2025
Jessica: Do think one day people will look back and ask how America could let this this happen? Me: A lot of people are already asking that today.
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⚠️ #JUnit #Vintage (JUnit 4 support) will be deprecated in JUnit 6. Yet another reason to upgrade to JUnit #Jupiter! 😎 github.com/junit-team/junit5…
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Testing Spring Boot controllers is a balancing act! Skip flaky unit tests & slow full-blown tests - learn how AtWebMvcTest enables fast, HTTP-aware testing and boosts your confidence ⚡️. rieckpil.de/how-to-test-spri… #SpringBoot #Testing

How to Test Spring Boot Web Controller the Right Way - rieckpil

Discover why @WebMvcTest is optimal for Spring controller testing. It preservers HTTP semantics while avoiding the pitfalls of unit tests.

rieckpil.de
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It’s Here: the Java Testing Toolbox eBook v1.0 is Now Available! 🧪 The wait is over! 🎉 My new eBook "30 Testing Tools and Libraries Every Java Developer Must Know" (aka. Java Testing Toolbox) has officially launched 🚀 This final release of the Java Testing Toolbox covers 30 essential testing tools, including 9 brand-new chapters on: ✅ Pact – Contract testing for microservices ✅ Awaitility – Fluent async testing ✅ @diffbluehq - AI-powered test generation ✅ @SeleniumHQ – UI testing automation ✅ @archtests – Enforcing architecture rules ✅ @instancio_java – Smart test data generation ✅ JMH – Benchmarking Java code ✅ JfrUnit – Testing with Java Flight Recorder ✅ PIT – Mutation testing for better coverage The other 21 testing tools include: TestNG, Mockito, WireMock, REST Assured, @localstack, @testcontainers, @wiremockorg, @selenide, @junitteam, @GatlingTool, @MockitoJava, JGiven, Spock, Microshed Testing, ApacheBench, GreenMail, MockWebServer, Spock, Hamcrest, AssertJ, JSONAssert, JsonPath, XMLUnit 🧰 Why This eBook is a Must-Have: - Covers both popular and niche Java testing tools - Practical setup guides for Maven & Gradle - Focuses on the 20% of features you’ll use 80% of the time - Beginner-friendly with hands-on examples - Lifetime updates to keep your testing skills sharp 📢 Already got the eBook on Leanpub? You can download the new version for free! Didn’t get notified? DM me If you haven’t grabbed your copy yet, now’s the best time to level up your Java testing skills! rieckpil.de/testing-tools-an…
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WORKSHOP @ Digit 2025 ✍️ “Smarter testing with Snapshot Testing, Instancio and “Millibenchmarking”” by Kristo Koert, the Technical Lead @ @twilio More about this workshop 👉 digit.dev/workshops/ #digitconf
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FYI: We (@JUnitTeam) are planning on #JUnit6 with a @Java 17 baseline, hopefully to be released in the Fall of 2025. 😎 github.com/junit-team/junit5…
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I released a new version of instancio-fixture-builder. It now includes an annotation processor that autogenerates the AbstractFixtureBuilder implementations, significantly reducing boilerplate code! Details: wouter-bauweraerts.github.io… #tdd #instancio #testdata #java #programming

Instancio Fixture Builder

instancio-fixture-builder usage documentation

wouter-bauweraerts.github.io
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Instancio retweeted
Siva
@sivalabs
20 Dec 2024
#SpringBoot 3.4.0 introduced MockMvcTester to simplify MockMvc usage and also supports AssertJ assertions. Looks cool 🚀
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📢 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/assertj/r…

Release v3.27.0 · assertj/assertj

💥 Breaking Changes Core Propagate common basetype for extracting(Function...) #3673 Details Before this change, extracting(Function...) changed actual to a list of Object instances, even in cases...

github.com
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Instancio retweeted
Siva
@sivalabs
18 Dec 2024
Heard of @testcontainers but haven't tried it yet? Here is a tutorial covering what kinds of problems Testcontainers solves, how to get started with it, and how you can test Spring Data JPA Repositories and #SpringBoot REST APIs. blog.jetbrains.com/idea/2024…

Testing Spring Boot Applications Using Testcontainers - The JetBrains Blog

Testing is a crucial part of software development, verifying that a system functions as intended. Developers create unit tests to validate the behavior of individual components, isolating them from ex

blog.jetbrains.com
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#WireMock now provides official integration with @SpringBoot! 🍃 Kudos, @maciejwalkowiak. 👏🏼 wiremock.io/post/wiremock-no…

WireMock Now Has an Official Spring Boot Integration

Embed WireMock directly into Spring for annotation-driven configuration, automatic resource management, and simple declarative configuration of mocked APIs.

wiremock.io
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🚀 Test your code with predefined ArchUnit rules 🚀 Taikai is an extension of the popular ArchUnit library, offering a comprehensive suite of predefined rules tailored for various technologies. 🔥 github.com/enofex/taikai
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🚀 JUnit 5 Tip🚀 Test Aborting with TestAbortedException Throw TestAbortedException to explicitly abort a test based on certain conditions, without marking it as a failure. 🔥 #JUnit #Java
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Join Christian, @marcphilipp, @sam_brannen, and @ju_derancourt on November 27 for the IntelliJ IDEA Livestream!
IntelliJ IDEA, a JetBrains IDE
@intellijidea
18 Nov 2024
Mark your calendars! We’re excited to host @junitteam experts for a deep dive into JUnit 5.11 and beyond! Explore the latest features and see what’s coming next in testing. 🔗 jb.gg/iakahx 📅 Date: November 27, 2024 ⏰ Time: 3:00–4:00 pm UTC #IntelliJIDEALivestream
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JUnit Pioneer 2.3.0 is out: github.com/junit-pioneer/jun…

Release v2.3.0 · junit-pioneer/junit-pioneer

Changelog generated by Shipkit Changelog Gradle Plugin 2.3.0 2024-10-06 - 16 commit(s) by Boris Faniuk, Daniel Kraus, Fanon Jupkwo, Jason Penilla, Ján Jančár, Knut Wannheden, Marcin Zajączkowski, ...

github.com
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Wrote an article exploring how @instancio_java can be used to generate test data in Java. Thanks to @rieckpil for reviewing it. Check it out. rieckpil.de/generating-java-…

Generating Java Test Data With Instancio

Learn how to generate random test data for your Java projects to have meaningful tests with less boilerplate.

rieckpil.de
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I write automated tests not because I have a lot of time; it is because I don't. - Venkat Subramaniam #quotes #quoteoftheday
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