instancio
jqwik
| instancio | jqwik | |
|---|---|---|
| 7 | 7 | |
| 748 | 524 | |
| 1.3% | 1.1% | |
| 9.7 | 9.2 | |
| 6 days ago | 8 days ago | |
| Java | Java | |
| Apache License 2.0 | Eclipse Public License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
instancio
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Any library you would like to recommend to others as it helps you a lot? For me, mapstruct is one of them. Hopefully I would hear some other nice libraries I never try.
Instancio for generating test data AssertJ Awaitility Quarkus FluentJdbc: a thin wrapper around jdbc, you can use it as an alternative for JPA and I use it in Quarkus
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Instancio 2.2.0 released
I've been experimenting a little and will be adding support for method references in the next release. Here's issue link if you want to follow.
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Java: Automating data setup in unit tests
Properly handling seeds and having reproducible objects was one of the main goals, so it should work as you'd expect. I'd suggest giving it a try and if you run into any issues, just post it on Github discussions.
- Data Generator For Unit Tests
- Instancio: Java library for auto-populating objects in unit tests
jqwik
- Jqwik – Property-Based Testing on the JUnit Platform
- Any library you would like to recommend to others as it helps you a lot? For me, mapstruct is one of them. Hopefully I would hear some other nice libraries I never try.
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Built a library to help generate test pojos with relevant but random data. I’d love some feedback.
See https://jqwik.net
- I just implemented a method that checks if a binary tree is symmetric, and now I want to test it with Junit. Do I need to manually create a bunch of trees, or is there an easier way?
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Simple example of property-based testing
Once we knew which property to use it was very straightforward to add a property-based test for it. We used the jqwik library. We like it because it has very good documentation and it is integrated with Junit.
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must known frameworks/libs/tech, every senior java developer must know(?)
Jqwik - I love property based testing and the way it can make you think differently about some of your code.
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Mutation testing java projects
Different to mutation testing, but on a semi-relatednpath, I've found property-based testing (e.g. https://jqwik.net/) to be valuable - thinking about the “shape“ of the expected output and getting a bunch of pseudorandom tests is pretty handy, especially for utility functions.
What are some alternatives?
Java Faker - Brings the popular ruby faker gem to Java
junit-quickcheck - Property-based testing, JUnit-style
fixture-monkey - Let Fixture Monkey generate test instances including edge cases automatically
Deep Dive - Fluent assertions library for Java
datafaker - Generating fake data for the JVM (Java, Kotlin, Groovy) has never been easier!
JQF - JQF + Zest: Coverage-guided semantic fuzzing for Java.
Mockito - Most popular Mocking framework for unit tests written in Java
Testcontainers - Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
REST Assured - Java DSL for easy testing of REST services
webtau - WebTau (web test automation) is a testing API, command line tool and a framework to write unit, integration and end-to-end tests. Test across REST-API, WebSocket, GraphQL, Browser, Database, CLI and Business Logic with a consistent set of matchers and concepts. REPL mode speeds-up tests development. Rich reporting cuts down investigation time.
atlantafx - Modern JavaFX CSS theme collection with additional controls.
aws-junit5 - JUnit 5 extensions for AWS