439 Open source projects that are alternatives of or similar to Spy

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).

Wiremock UI - Tool for creating mock servers, proxies servers and proxies servers with the option to save the data traffic from an existing API or Site.

Boilerplate-free mocking framework for Swift!

HTTP Stubbing in Swift

Stub your network requests easily! Test your apps with fake network data and custom response time, response code and headers!

Tool for providing sample data for AEM applications in a simple and flexible way. Stubbing server on AEM, no separate needed.

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

CNeptune improve productivity & efficiency by urbanize .net module with meta-code to lay foundation for frameworks

Forked from Mockjs, Generate random data & Intercept ajax request. Support miniprogram.

Working with mountebank api it's easy!

Official website and documentation for the Mock Service Worker library.

Mock object methods and dependencies.

Prig is a lightweight framework for test indirections in .NET Framework.

Extend Sinon stubs for Mongoose methods to test chained methods easily

Mock and stub HTTP requests. Test your apps with fake data and files responses.

✨ Scenario-based HTTP mocking

Examples of tests that mock Node system APIs: fs, http, child_process, timers

Node require wrapper with options for cache busting, pre- and post-processing

Mock HTTP calls without coding. Designed specially for testing and testers.

Stub server for REST APIs

Utilities to help mock behavior, spy on function calls, stub methods, and fake time for tests.

Firebase mock library for writing unit tests

Efficient Mock Generator for Swift

HTTP traffic mocking and testing made easy in Go ༼ʘ̚ل͜ʘ̚༽

A mocking library for Elixir

An Xcode extension (plugin) to generate Swift test doubles automatically.

Mocking library for TypeScript

Node server for dynamic, fake JSON.

🕋 Mocking Redis in unit tests in Go.

A simple example showing how to override the URLProtocol to return mock data on Alamofire responses. Helpful if you are looking for a simple way to mock an Alamofire response, with out any additional dependencies.

The most convenient tool to mock requests for axios, with built-in Chrome extension support.

🐵 HTTP mock server, useful to stub services and simulate dynamic API responses, leveraging ASP.NET Core features, built-in fake data generation and pure C# scripting

A mock server based in OpenAPI Specification

A pure C mocking library

An Android library that provides the ability to mock your final classes on Android devices.

JavaScript import/require module testing do's and don'ts with Jest

Create mocks easily in Swift

Mocking library for TypeScript and JavaScript using Proxies!

Java library for mocking responses in a Retrofit service.

Creates clean, concurrent, inspectable mocks from elixir modules

A friendly substitute for .NET mocking libraries.

Intuitive mocking library for Typescript class imports

HTTP traffic mocking and testing made simple in Python

Advanced unit test framework for D

Seamless client side mocking

PHP Mocking Framework

🐦 Next generation mocking framework in Javascript

Yeoman generator for building a fake backend by providing the content of JSON files or JavaScript objects through configurable routes.

Ruby library to record and replay object interactions

Seamless REST/GraphQL API mocking library for browser and Node.js.

A library for testing classes with auto mocking capabilities using jest-mock-extended

Easily mock GraphQL queries in your Relay Modern / Apollo / any-other-GraphQL-client tests.

A tool to quickly mock out end points, setup delays and more...

An isolation framework for Clojure/ClojureScript.

A test-friendly replacement for golang's time package

alternative spring mocking infrastructure

🐦 Decorator Powered TypeScript Library for Creating Mocks

DeepfakeHTTP is a web server that uses HTTP dumps as a source for responses.

Simplified requests calls mocking for pytest

Mocha is a mocking and stubbing library for Ruby