Top 6 Java Assertion Projects

Karate

25 7,835 8.5 Java

Test Automation Made Simple
AssertJ

14 2,536 9.5 Java

AssertJ is a library providing easy to use rich typed assertions
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
zerocode

3 847 8.9 Java

A community-developed, free, opensource, automated testing framework for microservices APIs, Kafka(Data Streams) and Load testing. Zerocode Open Source enables you to create, change and maintain your automated test scenarios via simple JSON or YAML files. Visit documentation below:
unlogged-sdk

2 139 9.6 Java

Unlogged SDK for recording code execution

Project mention: Show HN: Unlogged (YC S22) – open-source record and replay for Java | news.ycombinator.com | 2023-10-30

Hello HN! Parth, and Shardul here. We have been building unlogged.io for the last 21 months. We started as a time travel debugger and pivoted to record and replay with assertions, mocking, and code coverage. You can save the replays in the form of a JSON and commit them to your git.
Both Parth and I come from an e-commerce/payments background where production bugs meant heavy financial losses. Big billion days/Black Friday sales meant months of code freezes with low productivity. Before committing the code, we wanted to replay production traffic and know the breaking changes right away, like in sub-second. Kind of like unit+integration tests on steroids.
So, we built an SDK that adds probes to the code in compile time. The SDK logs code execution, in detail.
Git: https://github.com/unloggedio/unlogged-sdk
We also built an IDE plugin that keeps monitoring code changes, hot reloads these changes, replays the relevant methods, and alerts on failing replays. It also lets developers call Java methods directly, mock downstream methods in run time, highlight code coverage in real-time, and show performance numbers for methods with inlay hints. (right above each method)
Git: https://github.com/unloggedio/intellij-java-plugin
We are excited to launch the first version of our product that replays with assertions + mocking + code coverage reports right inside the IDE.
Link to our IntelliJ plugin: https://plugins.jetbrains.com/plugin/18529-unlogged/
Record and Replay Demo: https://www.youtube.com/watch?v=muCyE-doEB0
Define Assertions on Replay: https://www.youtube.com/watch?v=YKsi1p634-M
Track Code Coverage: https://www.youtube.com/watch?v=NMmp954kfaU
Generate JUnit Test Cases: https://www.youtube.com/watch?v=rTUmg5b1Z_Q
Mocking when replaying: https://www.youtube.com/watch?v=O_aqU1u-Kmw
Documentation: http://read.unlogged.io/
Roadmap:
1. Create a production logger

Scott Test Reporter

0 136 0.0 Java

Never debug a test again: Detailed failure reports and hassle free assertions for Java tests - Power Asserts for Java
Deep Dive

1 7 4.2 Java

Fluent assertions library for Java (by jdlib)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).