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A light-weight, flexible, and expressive statistical data testing library

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Embedded unit testing framework for Godot 4 supporting GDScript and C#. Features test-driven development, embedded test inspector, extensive assertions, mocking, scene testing.

ovh / venom

🐍 Manage and run your integration tests with efficiency - Venom run executors (script, HTTP Request, web, imap, etc... ) and assertions

stretchr / testify

A toolkit with common assertions and mocks that plays nicely with the standard library

karatelabs / karate

Test Automation Made Simple

chaijs / chai

BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.

webmozarts / assert

Assertions to validate method input/output with nice error messages.

github / dmca

Repository with text of DMCA takedown notices as received. GitHub does not endorse or adopt any assertion contained in the following notices. Users identified in the notices are presumed innocent until proven guilty. Additional information about our DMCA policy can be found at

kotest / kotest

Powerful, elegant and flexible test framework for Kotlin with assertions, property testing and data driven tests.

fluentassertions / fluentassertions

A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.

VerifyTests / Verify

Verify is a snapshot testing tool that simplifies the assertion of complex data models and documents.

shouldly / shouldly

Should testing for .NET—the way assertions should be!

pester / Pester

Pester is the ubiquitous test and mock framework for PowerShell.

github / gov-takedowns

Text of government takedown notices as received. GitHub does not endorse or adopt any assertion contained in the following notices.

assertj / assertj

Fluent testing assertions for Java and the JVM

google / truth

Fluent assertions for Java and Android

ivaylokenov / MyTested.AspNetCore.Mvc

Fluent testing library for ASP.NET Core MVC.

php-standard-library / php-standard-library

PHP Standard Library

chaijs / chai-as-promised

Extends Chai with assertions about promises.

AwesomeAssertions / AwesomeAssertions

A fork of FluentAssertions controlled by the community.

samber / oops

🔥 Error handling library with context, assertion, stack trace and source fragments

bluebird75 / luaunit

LuaUnit is a popular unit-testing framework for Lua, with an interface typical of xUnit libraries (Python unittest, Junit, NUnit, ...). It supports several output formats (Text, TAP, JUnit, ...) to be used directly or work with Continuous Integration platforms (Jenkins, Maven, ...).

chaijs / chai-http

HTTP Response assertions for the Chai Assertion Library.

robstoll / atrium

A multiplatform expectation library for Kotlin

assert-rs / assert_cmd

Assert process::Command - Easy command initialization and assertions

pointfreeco / swift-issue-reporting

Report issues in your application and library code as Xcode runtime warnings, breakpoints, assertions, and do so in a testable manner.

dapphub / ds-test

Assertions, equality checks and other test helpers

dboudreau00 / NocTORnal

Self-hosted case system for cybercrime investigators. A social network graph where every entity and tie traces to a graded assertion on a WORM-locked exhibit with chain of custody. FastAPI and Postgres, row-level security, TLP gating, two-person controls, one egress proxy.

GGGODLIN / claude-pr-review

Multi-axis PR review orchestration for Claude Code — 5 independent review perspectives, symmetric cross-verification, deterministic coverage assertion

Reality-JH / frontend-promotion-guard

Release gate that catches "green build, healthy container, broken page" deploys: CSS audit, computed-style assertions, screenshot diff, and Docker candidate promotion with verified rollback.

kayneshakim-bit / luau-workflow-runner

Automated Luau Script Testing for Roblox CI Workflows 2026

vyncint / termlens

Headless end-to-end testing for CLI and TUI apps in Rust: real PTYs, rendered-screen assertions, snapshots, and screen diffs.

forwardemail / supertest

🕷 Super-agent driven library for testing node.js HTTP servers using a fluent API. Maintained for @forwardemail, @ladjs, @spamscanner, @breejs, @cabinjs, and @lassjs.

authorjapps / zerocode

zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Databases and Load scenarios. all defined in simple JSON or YAML — with zero coding.