#testing-tools

An Internet Computer Protocol canister testing library for TypeScript and JavaScript.

The Percy CLI is used to interact with, and upload snapshots to, percy.io via the command line.

A Python test framework, written in Rust.

Harness brings Jest-style tests to real native environments so you can test TurboModules like you would test your React Native app: with JavaScript.

Pytest plugin to write end-to-end browser tests with Playwright.

The Testing Framework

Log, test, intercept and modify Apollo Client's operations

Java test automation framework for web, mobile, API, CLI, database, and desktop E2E testing with a fluent API and built-in reporting.

Official Argos SDKs for JavaScript

E2E testing for Node.js with instant scenario switching. Run your real app—mock only external APIs. Express & Next.js adapters.

Faker is a pure Elixir library for generating fake data.

The successor to nose, based on unittest2

A friendly substitute for .NET mocking libraries.

Run PHPUnit tests in parallel

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

go-test-coverage is a tool designed to report issues when test coverage falls below a specified threshold

Mockito for Scala language

Go test suite framework – BDD vocabulary, lifecycle hooks, fixtures, fuzzing, benchmarking, snapshots. Zero reflection, zero runtime deps – powered by code generation.

Database anonymization and test data management

Go (Golang) Fake Data Generator for Struct, previously https://github.com/bxcodec/faker

With this library, you can run your test suites without having to stop and restore the database in between them

Fixture-based test framework for Rust

The smallest, simplest and fastest JavaScript pixel-level image comparison library

Tests CLI behavior from plain YAML: exit codes, output, files, snapshots, and interactive terminals (PTY/TUI)

#1 quality TLS certs while you wait, for the discerning tester

A simple portable C test runner

Windows GUI Automation with Python (based on text properties)