The OWASP ZAP core project
Enterprise integration testing framework
Programmer-friendly testing framework for Java and the JVM
SoapUI is a free and open source cross-platform functional testing
Now continued as OculiX — see oculix.org
Flexible, lightweight multi-language test reporting tool
Test automation made simple
Most popular Mocking framework for unit tests written in Java
API automation and load testing framework
State of the art mutation testing system for the JVM
SoloPi Automated Testing Tool
Coverage-guided, in-process fuzzing for the JVM
The Open Source Test Automation Platform
Gateway service providing dynamic routing, monitoring and more
Android unit testing framework
Java GUI-Less browser, supporting JavaScript, to run against web pages
Editor for Fixed Width, Csv and Existing Xml files.
Database Subsetter and Relational Data Browser
A Java Utility Class To Create Combinations of Existing Arrays.
Automated tests with databases: prep, verify, restore tables
A C++ library for AVR and NodeMCU
Simple example of draw and rotate 3D box
The Interactive Exernal Accessor Tool for develop, test and support.