A collection of ROM images with tests that will aid you in developing your own CHIP-8, SUPER-CHIP or XO-CHIP interpreter (or "emulator")

The Ruby Spec Suite aka ruby/spec

SSL and TLS protocol test suite and fuzzer

🔎 Automated mutation testing for Swift 🕳️

DARPA Challenges Sets for Linux, Windows, and macOS

Extremely flexible golang deep comparison, extends the go testing package, tests HTTP APIs and provides tests suite

Comprehensive, language independent Test Suite for YAML

Behavior specification for Gavel, validator of HTTP transactions

TLS-Anvil, a fully automated TLS testsuite for client and servers.

Revision control stress tests

Comparison of the different implementations of JSONPath and language agnostic test suite.

A test suite for QUIC

The Crystal Programming Language Koans

A tool to ping your site with a variety of real world WebMentions

A tool for Model Based Testing

Semi-automated conformance checking for IRC implementations (RFC1459/RFC2812, the "modern spec" by ircdocs, and IRCv3)

A collection of Fortran compiler bug examples and tests

resvg test suite

Micropub test suite and debugging utility

An extension of Deno's built-in test runner to add setup/teardown hooks and make it easier to organize tests in a format similar to Jasmine, Jest, and Mocha.

Test suite and debug utilities for W3C WebSub

a webmention validator and test suite

Python script to quickly create hand-crafted PDF files

Practice implementing custom react hooks with full test suites and examples.

n-body-simulation performance test suite

Bencodex: Bencoding Extended

My own realization of ASN.1:2008 test suite

A test suite for MathJax

QEMU-KVM Virtual Environment for Running Microsoft HCK Tests

vogro: an excellent web framework for modern cplusplus, born for simplicity and high performance.