mountebank - Over the wire test doubles

•    HTML

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In fact, halfway through we discovered our corporate mocking software couldn’t handle the sheer amount of performance testing we were running as part of this effort (we completely crushed some pretty industrial enterprise software in the process). As a result, we made the call to move the entire program over to a Mountebank OSS-based solution with a custom provision to give us the ability to expand/shrink our mocking needs on demand. mountebank is the first open source tool to provide cross-platform, multi-protocol test doubles over the wire. Just point your application to mountebank instead of the real dependency, and test like you would with traditional stubs and mocks.

mountebank service-virtualization test-automation testing test-framework microservices-testing mocking stubbing test stub mock double smtp email http https tcp net

sinon-chai - Extends Chai with assertions for the Sinon.JS mocking framework.

•    Javascript

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Sinon–Chai provides a set of custom assertions for using the Sinon.JS spy, stub, and mocking framework with the Chai assertion library. You get all the benefits of Chai with all the powerful tools of Sinon.JS. All of your favorite Sinon.JS assertions made their way into Sinon–Chai. We show the should syntax here; the expect equivalent is also available.

chai chai-plugin browser vendor mocks-and-spies sinon testing spies stubs mocks

NSubstitute - A friendly substitute for .NET mocking libraries.

•    CSharp

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Visit the NSubstitute website for more information. NSubstitute is designed as a friendly substitute for .NET mocking libraries.

c-sharp dot-net testing testing-tools test mocking mock dotnet-core dotnetcore mocks stubs

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

•    Go

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Go code (golang) set of packages that provide many tools for testifying that your code will behave as you intend. It supports Easy assertions, Mocking, Testing suite interfaces and functions.

testify assertions mocking testing toolkit test-framework unit-testing

moq4 - Repo for managing Moq 4.x

•    CSharp

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You can think of Linq to Mocks as "from the universe of mocks, give me one whose behavior matches this expression".Moq (pronounced "Mock-you" or just "Mock") is the only mocking library for .NET developed from scratch to take full advantage of .NET Linq expression trees and lambda expressions, which makes it the most productive, type-safe and refactoring-friendly mocking library available. And it supports mocking interfaces as well as classes. Its API is extremely simple and straightforward, and doesn't require any prior knowledge or experience with mocking concepts.

dockertest - Write better integration tests! Dockertest helps you boot up ephermal docker images for your Go tests with minimal work

•    Go

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When developing applications, it is often necessary to use services that talk to a database system. Unit Testing these services can be cumbersome because mocking database/DBAL is strenuous. Making slight changes to the schema implies rewriting at least some, if not all of the mocks. The same goes for API changes in the DBAL. To avoid this, it is smarter to test these specific services against a real database that is destroyed after testing. Docker is the perfect system for running unit tests as you can spin up containers in a few seconds and kill them when the test completes. The Dockertest library provides easy to use commands for spinning up Docker containers and using them for your tests.Using Dockertest is straightforward and simple. Check the releases tab for available releases.

docker ci tests automation unit-testing integration-testing

node-sandboxed-module - A sandboxed node

•    Javascript

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A sandboxed node.js module loader that lets you inject dependencies into your modules.This module is intended to ease dependency injection for unit testing. However, feel free to use it for whatever crimes you can think of.

require mocking mocks stubs dependency-injection testing

mockery - Simplifying the use of mocks with Node.js

•    Javascript

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If you've tried working with mocks in Node.js, you've no doubt discovered that it's not so easy to get your mocks hooked up in the face of Node's module loading system. When your source-under-test pulls in its dependencies through require, you want your mocks provided, instead of the original module, to enable true unit testing of your code. This is exactly the problem Mockery is designed to solve. Mockery gives you a simple and easy to use API with which you can hook in your mocks without having to get your hands dirty with the require cache or other Node implementation details.

mock stub require module cache unit test unittest testing tdd

interfake - :computer: Fake APIs for prototypes & automated tests.

•    Javascript

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Interfake is a tool which allows developers of client-side applications of any platform to easily create dummy HTTP APIs to develop against. Let's get started with a simple example.If you don't want to use the JavaScript method to create your Interfake API, go read up on all the methods. Otherwise, read on.

cli http server mocking mocks testing api rest

timekeeper - Easy testing of time-dependent code. Node.js

•    Javascript

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This module mocks Date and Date.now in order to help you test time-dependent code. Provides travel and freeze functionality for your Node.js tests. Note: If traveling when time is frozen, the time will be frozen to the new traveled time.

fake-date date-test mocking-date

Team Foundation Adapters

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Team Foundation Adapters make it easier to do proper unit testing of applications that utilize the Team Foundation Server 2008 API, by providing a simple mechanism for mocking the commonly used sealed classes in the API, which cannot otherwise be mocked.

hintonbr tfs

Mockito - Most popular Mocking framework for unit tests written in Java

•    Java

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Mockito is a mocking framework that tastes really good. It lets you write beautiful tests with a clean & simple API. Mockito doesn’t give you hangover because the tests are very readable and they produce clean verification errors.

mocking-framework testing-tools mocking mock testing test-automation test-driven-development mock-library java-library unit-testing

FakeItEasy - The easy mocking library for .NET

•    CSharp

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A .Net dynamic fake framework for creating all types of fake objects, mocks, stubs etc.FakeItEasy logo designed by Vanja Pakaski.

mocking fake-objects dotnet-core

sinon-chrome - Testing chrome extensions with Node.js

•    Javascript

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Sinon-chrome is helper tool for unit-testing chromium and Firefox extensions and apps. It mocks all extensions api with sinon stubs that allows you to run tests in Node.js without actual browser. API mocks are generated using official chromium extensions API (Firefox webextensions) schemas that ensures consistency with real API. Actual schemas are taken from Chrome 53 and Firefox 49.

chrome-api sinon-chrome chrome-events chrome firefox extensions apps test tdd webextensions sinon

cpputest - CppUTest unit testing and mocking framework for C/C++

•    C++

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CppUTest unit testing and mocking framework for C/C++

Mocking BizTalk

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Mocking BizTalk is a set of tools aimed at bringing Mock Object concepts in BizTalk solution testing. Actually it consists in a set of MockPipelines whose implementation is not fixed but decided at run-time compiling script files written in boo language.

biztalk boounit mock test testing

minitest - minitest provides a complete suite of testing facilities supporting TDD, BDD, mocking, and benchmarking

•    Ruby

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minitest provides a complete suite of testing facilities supporting TDD, BDD, mocking, and benchmarking.

HTTPretty - HTTP client mocking tool for Python, it's like ruby's FakeWeb for python

•    Python

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Due to big API incompatibility between python 3.3, 3.4 and 3.5, the author of HTTPretty is not supporting python3 officially. You will notice that the travis build for python 3 might be broken, and while pull requests fixing py3 support are most welcome, it is still not official at least for now. Since you are interested in HTTPretty you should also be interested in speeding up your build. Replace pip with curdling and see your build running a lot faster.

http http-mock http-mocking mock fakeweb dynamic-responses httpretty python2 python-2 streaming-response decorators testing testing-tools tdd tdd-utilities

moq - Interface mocking tool for go generate

•    Go

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Interface mocking tool for go generate. By Mat Ryer and David Hernandez, with ideas lovingly stolen from Ernesto Jimenez.

mocking testing codegen

meck - A mocking library for Erlang

•    Erlang

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A mocking library for Erlang. See what's new in 0.8 Release Notes.

testing mocking-library meck