42 projects
Jest
Jest is a comprehensive JavaScript testing framework focused on simplicity and developer experience. It provides a complete testing solution with built-in assertion libraries, mocking capabilities, snapshot testing, and code coverage reporting. The framework is designed to work with most JavaScript projects, including React applications, with minimal configuration required.
Contributors
16,333
Organizations
4,683
Software value
$5.8M
Moto
Moto is a Python library that mocks AWS services for testing and development purposes. It allows developers to easily test their AWS applications by providing mock implementations of AWS APIs, enabling offline development and testing without incurring actual AWS costs.
Contributors
4,624
Organizations
965
Software value
$127M
Enzyme
JavaScript Testing utilities for React
Contributors
4,376
Organizations
1,244
Software value
$1.1M
Robolectric
Robolectric is a testing framework for Android applications that allows tests to run directly on the JVM without requiring an Android device or emulator. It provides a simulated Android environment and enables fast, reliable unit testing of Android code by replacing Android SDK dependencies with shadow objects.
Contributors
4,274
Organizations
659
Software value
$11M
PHPUnit
PHPUnit is a widely-used testing framework for PHP that enables developers to write and run automated unit tests. It provides a comprehensive suite of testing tools, assertions, and test runners to validate PHP code functionality and ensure software quality.
Contributors
3,816
Organizations
1,333
Software value
$4.2M
Faker Ruby
Faker is a Ruby library for generating realistic fake data like names, addresses, phone numbers, and other types of test data. It helps developers create sample data for testing, seeding databases, and building example datasets.
Contributors
2,991
Organizations
751
Software value
$13M
RSpec Rails
RSpec Rails is a testing framework that brings RSpec's behavior-driven development approach to Ruby on Rails applications, providing a domain-specific language for writing readable, maintainable tests and specifications for Rails components
Contributors
2,792
Organizations
1,014
Software value
$571K
Mockito
Mockito is a popular mocking framework for Java unit testing that allows creating and configuring mock objects. It enables developers to write clean tests by mocking dependencies and verifying behavior in an elegant way.
Contributors
2,634
Organizations
555
Software value
$2.3M
Sinon.JS
Sinon.JS is a standalone test spies, stubs and mocks library for JavaScript. It provides test doubles that can be used with any unit testing framework to help verify and validate behavior of JavaScript applications.
Contributors
2,293
Organizations
811
Software value
$1.1M
React Testing Library
React Testing Library is a lightweight testing utility for React that encourages good testing practices by working with actual DOM nodes and simulating user interactions rather than dealing with component instances. It helps developers write maintainable tests that closely resemble how users interact with their applications.
Contributors
2,097
Organizations
593
Software value
$116K
factory_bot
A library for setting up Ruby objects as test data.
Contributors
2,097
Organizations
743
Software value
$452K
Testify
Testify is a testing and assertion toolkit for Go that provides a rich set of assertion functions and testing utilities to make writing tests easier and more expressive
Contributors
2,009
Organizations
785
Software value
$659K
Nock
Nock is an HTTP server mocking and expectations library for Node.js that allows intercepting HTTP requests and providing mock responses for testing purposes
Contributors
1,699
Organizations
642
Software value
$528K
DOM Testing Library
🐙 Simple and complete DOM testing utilities that encourage good testing practices.
Contributors
1,292
Organizations
402
Software value
$321K
WebMock
WebMock is a library for stubbing and setting expectations on HTTP requests in Ruby. It allows developers to disable real HTTP requests and simulate responses for testing purposes, supporting features like request matching, response stubbing, and request verification.
Contributors
1,260
Organizations
493
Software value
$474K
Faker
Faker is a popular open source library for generating fake data like names, addresses, phone numbers and other types of test data for software development and testing purposes. It helps developers create realistic sample data for testing, seeding databases, and building demos.
Contributors
1,247
Organizations
282
Software value
$9.2M
Mockery
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).
Contributors
1,122
Organizations
369
Software value
$3.7M
Testcontainers for Go
Testcontainers for Go is a testing library that provides lightweight, throwaway instances of common databases, message brokers, and other services in Docker containers for use in automated tests. It enables developers to write integration tests that run against real dependencies rather than mocks, while maintaining test isolation and reproducibility.
Contributors
1,108
Organizations
384
Software value
$2.2M
factory_boy
A Python library for generating test data and fixtures using factories. It provides a flexible way to create complex objects for testing purposes, with support for sequences, sub-factories, and various data generation strategies.
Contributors
1,086
Organizations
398
Software value
$418K
GoMock
GoMock is a mocking framework for the Go programming language that helps developers write unit tests by generating mock implementations of interfaces. It provides a flexible way to create mock objects for testing code that depends on interfaces.
Contributors
745
Organizations
300
Software value
$241K
Alice
Alice is a PHP library for generating fixture data, allowing developers to create random yet realistic test data using a YAML-based expressive syntax. It supports object population, references between fixtures, and customizable data generation.
Contributors
700
Organizations
217
Software value
$1.5M
NSubstitute
A friendly substitute for .NET mocking libraries.
Contributors
687
Organizations
136
Software value
$789K
factory_bot_rails
A Ruby gem that provides Rails integration for factory_bot, enabling the creation of test data and fixtures through factories rather than hard-coded test data. It helps developers write cleaner and more maintainable tests by providing a straightforward way to set up test data.
Contributors
674
Organizations
265
Software value
$48K
Responses
A utility for mocking out the Python Requests library.
Contributors
664
Organizations
243
Software value
$215K
Bogus
Bogus is a simple and sane fake data generator for .NET languages like C#, F#, and VB.NET. It helps developers create realistic test data by generating names, addresses, phone numbers, and other types of mock data in a clean, readable way.
Contributors
524
Organizations
95
Software value
$5.5M
Datafaker
Datafaker is a Java library that generates fake data for testing and development purposes. It provides a wide range of data generators for names, addresses, numbers, dates, and other types of data, helping developers create realistic test datasets.
Contributors
517
Organizations
72
Software value
$8.3M
FakeFS
A fake filesystem. Use it in your tests.
Contributors
437
Organizations
181
Software value
$242K
Verify
Verify is a snapshot testing tool for .NET that helps verify complex objects and documents by capturing their state as human-readable files. It supports multiple output formats, handles complex object comparisons, and integrates with popular testing frameworks.
Contributors
392
Organizations
119
Software value
$6M
eslint-plugin-testing-library
ESLint plugin that provides rules for testing-library, helping developers follow best practices when writing tests using Testing Library tools and utilities
Contributors
370
Organizations
118
Software value
$919K
MSW Interceptors
Low-level network interception library.
Contributors
348
Organizations
132
Software value
$684K
Zenstruck Foundry
A model factory library for creating expressive, auto-completable, on-demand dev/test fixtures with Symfony and Doctrine.
Contributors
322
Organizations
89
Software value
$667K
Sinon.js Fake Timers
A JavaScript library that provides utilities for faking and manipulating timers, enabling precise control over time-dependent code during testing by allowing developers to simulate passage of time, schedule events, and manage timer-based functions
Contributors
299
Organizations
133
Software value
$254K
ApprovalTests.Java
ApprovalTest verification library for Java
Contributors
197
Organizations
46
Software value
$1.3M
EasyMock
EasyMock, makes mocking easier since 2001
Contributors
190
Organizations
53
Software value
$3.5M
ApprovalTests.Python
ApprovalTests.Python is a testing library that helps verify complex objects and scenarios by taking a snapshot of the results and managing them as approved files. It simplifies testing by allowing developers to approve changes to test outputs rather than writing explicit assertions.
Contributors
174
Organizations
28
Software value
$355K
RR
RR is a test double framework that features a rich selection of double techniques and a terse syntax. ⛺
Contributors
115
Organizations
38
Software value
$414K
python-dbusmock
A Python library for mocking D-Bus interfaces, allowing developers to create mock D-Bus objects and services for testing applications without requiring actual D-Bus services to be running
Contributors
105
Organizations
41
Software value
$272K
Freerange Mocha: Ruby Mocking and Stubbing Library
A mocking and stubbing library for Ruby
This project hasn't been onboarded to LFX Insights.
Nise
Fake XHR and fake server
This project hasn't been onboarded to LFX Insights.