SoapUI is a free and open source cross-platform functional testing
Go library that makes it easier to write automated tests
Testing for Developers. Toolkit that creates test-cases and data mocks
Scalable open source load testing tool
A modern, C++-native, test framework for unit-tests, TDD and BDD
Delightful JavaScript Testing
Formatted output of timed sections in Julia
A JavaScript Testing Framework
Development tools and libraries specialized for Angular
State of the art mutation testing system for the JVM
PerfView is a CPU and memory performance-analysis tool
OS-agnostic, system-level binary package manager
Find vulnerabilities, misconfigurations, secrets, SBOM in containers
The Swift (and Objective-C) testing framework
Cucumber for Ruby
Install and run Python applications in isolated environments
Test Runner for JavaScript
Thou Shalt Write Tests in Go
Supports tests, providing lightweight, throwaway instances of database
Automatically mock your HTTP interactions to simplify testing
Interactive evaluation for Neovim
Super-agent driven library for testing node.js HTTP servers
NUnit 3 Framework
A Coverage-Guided, Native Python Fuzzer
Most popular Mocking framework for unit tests written in Java