#mock

Thin-wrapper around the mock package for easier use with pytest

Node.js "fs" and browser "File System API" adapters and in-memory implementations 👍

WireMock.Net is a flexible product for stubbing and mocking web HTTP responses using advanced request matching and response templating. Based on WireMock Java, but extended and different functionality. Full documentation can be found at https://wiremock.org/dotnet/.

Mock everything your AI app talks to — LLM APIs, MCP, A2A, AG-UI, vector DBs, search. One package, one port, zero dependencies.

Most popular Mocking framework for unit tests written in Java

Pester is the ubiquitous test and mock framework for PowerShell.

A mock code autogenerator for Go

Industry standard API mocking for JavaScript.

🍍 Intuitive, type safe, light and flexible Store for Vue using the composition api with DevTools support

Uncommonly extensible assertions for the beautiful people

mocking library for Kotlin

Run, mock and test fake Snowflake databases locally.

The fastest and most reliable gRPC mock server for testing and development

Turn an OpenAPI spec into a local API in one command. Build and test your frontend with custom responses, shared state, and simulated failures, without waiting for the backend.

Pothos GraphQL is library for creating GraphQL schemas in typescript using a strongly typed code first approach

Mockery is a simple yet flexible PHP mock object framework for use in unit testing with PHPUnit, PHPSpec or any other testing framework. Its core goal is to offer a test double framework with a succinct API capable of clearly defining all possible object operations and interactions using a human readable Domain Specific Language (DSL).

HTTP server mocking and expectations library for Node.js