jqwik
record-builder
| jqwik | record-builder | |
|---|---|---|
| 7 | 35 | |
| 526 | 653 | |
| 1.5% | - | |
| 9.1 | 7.3 | |
| 11 days ago | 24 days ago | |
| Java | Java | |
| Eclipse Public License 2.0 | Apache 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.
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.
-
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?
-
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.
-
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.
-
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.
record-builder
-
JEP Draft – Derived Record Creation (Preview) – Java
The problem with this approach is that the people will have to build crutches like https://github.com/Randgalt/record-builder and by the time Java adds missing features all the codebases will be forever polluted with legacy workarounds that nobody will dare to remove because of backwards compatibility.
It also hinders adoption of new features as people will prefer to maintain consistency in their codebases.
-
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.
Record builder is pretty good for making builders for your Java 17 records
-
Useful & Unknown Java Libraries - Piotr's TechBlog
I always have to bring up RecordBuilder simply because of the included Withers and it being a source generator instead of the Lombok weirdness.
-
How to use Java Records
The above is not particularly user-friendly. Luckily compiler plugins can provide the missing feature, most notably RecordBuilder:
-
Named Parameters in Java
For records, instead of lombok you can use https://github.com/Randgalt/record-builder which is a valid annotation processor and will not break on JDK changes
-
has anyone written custom annotations using Lombok ?
In this particular case you can generate the builder with something like https://github.com/Randgalt/record-builder that is both valid java and lombok-like enough
-
I made a java client for the todoist api
Records + Record Builder or immutables + the trick to hide the implementing class w/sealed are your friend. Both the mutability and naming conventions this generates are vomitus.
-
"With" for records -- Brian Goetz
Did you use https://github.com/Randgalt/record-builder ?
-
What's your top Java pet peeve?
Try my annotation processor. It generates withers. https://github.com/Randgalt/record-builder
-
Stay with Java(+Spring) or pivot towards Go/Python?
I personally don't use that one much, but you could use this library instead.
What are some alternatives?
junit-quickcheck - Property-based testing, JUnit-style
MapStruct - An annotation processor for generating type-safe bean mappers
Deep Dive - Fluent assertions library for Java
Lombok - Very spicy additions to the Java programming language.
JQF - JQF + Zest: Coverage-guided semantic fuzzing for Java.
awesome-annotation-processing - A curated list of resources related to the Java annotation processing API (JSR 269)
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.
core - An advanced and highly optimized Java library to build frameworks: it's useful for scanning class paths, generating classes at runtime, facilitating the use of reflection, scanning the filesystem, executing stringified source code and much more...
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.
Immutables - Annotation processor to create immutable objects and builders. Feels like Guava's immutable collections but for regular value objects. JSON, Jackson, Gson, JAX-RS integrations included
aws-junit5 - JUnit 5 extensions for AWS
Jackson JSON Processor - Main Portal page for the Jackson project