Light, fluffy, and always free - The AWS Local Emulator alternative
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A toolkit with common assertions and mocks that plays nicely with the standard library
- testify
- go
- assertions
- mocking
A simulation data generator
Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.
The industry standard for API mocking in JavaScript.
- msw
- mock
- mocking-framework
- service-worker
Most popular Mocking framework for unit tests written in Java
- mockito
- java
- mocking-framework
- testing-tools
An email and SMTP testing tool with API for developers
- email-testing
- go
- golang
- smtp-server
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).
- mockery
- phpunit
- php
- stub
Test Automation Made Simple
- test-automation
- assertions
- testing-tools
- mock-server
A library that allows you to easily mock out tests based on AWS infrastructure.
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
A tool for mocking HTTP services
- wiremock
- json
- mocking
- stubbing
A mock code autogenerator for Go
Catches mail and serves it through a dream.
- smtp
- server
- ruby
Sql mock driver for golang to test database interactions
:wrench: Utility library for GraphQL to build, stitch and mock GraphQL schemas in the SDL-first approach
- graphql-schema
- schema-language
- graphql
- graphql-api
Stub your network requests easily! Test your apps with fake network data and custom response time, response code and headers!
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
- oas
- prism
- mocking
- api-testing
PowerMock is a Java framework that allows you to unit test code normally regarded as untestable.
A gem providing "time travel", "time freezing", and "time acceleration" capabilities, making it simple to test time-dependent code. It provides a unified method to mock Time.now, Date.today, and DateTime.now in a single call.
Pester is the ubiquitous test and mock framework for PowerShell.
- powershell
- pester-tests
- powershell-tests
- assertions
Papercut SMTP -- The Simple Desktop Email Server
Automatically mock your HTTP interactions to simplify and speed up testing
A friendly substitute for .NET mocking libraries.
- c-sharp
- dotnet
- dot-net
- testing