Repository Index

HTTP mock for Golang: record and replay HTTP/HTTPS interactions for offline testing

• vcr
• http
• playback
• mock

SMTP mock server written on Golang. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.

• smtp
• smtp-mock
• smtp-server
• smtp-mail

High-performance, multi-protocol mock server. HTTP, WebSocket, gRPC, MQTT, SSE, GraphQL, SOAP in one binary.

• api-mocking
• cli
• developer-tools
• golang

Mockbin by Zuplo. Mock, Test, and View HTTP Requests and Responses

• api-client
• api-management
• api-mock
• api-test

Mock an SSH server and define all commands it supports (Python, Twisted)

• mock
• ssh
• python
• hylang

Mock HTTP::Client

FakeServer integrates with ExUnit to make external APIs testing simpler

• elixir
• test
• fake-server
• exunit

A test-friendly replacement for golang's time package [managed by soy-programador]

💎 Ruby SMTP mock. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.

• testing
• testing-tools
• ruby
• ruby-gem

Isolate tests from the real world, inspired by Ruby's VCR.

• elixir
• testing
• integration

A small spying and stubbing library for Clojure and ClojureScript

Load popup, sidebar and background with JSDOM based on the manifest.json for testing purposes

localaik is a local compatibility server for a subset of the Gemini and OpenAI APIs. Run one container locally, point your SDK to it, and the proxy serves both protocol shapes on the same port for tests and development.

• docker
• gemini
• golang
• llama-cpp

Unit test your 🐍 smart contracts

• algokit
• algorand
• puya
• pytest

Feature-rich filesystem mocking for Go tests: comprehensive error injection, latency simulation, write operations, operation statistics, and standalone file handles. Built on testing/fstest.MapFS with comprehensive fs.FS interface support.

• filesystem
• go
• golang
• mock

Open-source simulation harness for testing AI agents. Simulate LLM and tool calls to test edge cases, failure paths, and agent logic without live API calls.

• ai-agents
• ai-testing
• llm
• llm-evaluation

Automatically generate Go code for mocking interfaces in unit tests

The simplest way to test your APIs and webhooks

• dockerfile
• qa-automation
• testing-tools
• self-hosted

Simulates (partly) a Homematic CCU

• homematic
• smarthome
• testing
• simulator