Selenium implements the W3C WebDriver protocol to automate popular browsers. It aims to mimic the behaviour of a real user as it interacts with the application's HTML. It's primarily intended for web application testing, but any web-based task can automated.

Hypothesis is a powerful, flexible, and easy to use library for property-based testing.

You probably meant `gem install rails-dom-testing`.

Property-Based Testing tool for Ruby, utilizing Ractor for parallelizing test cases.

Email Condom for your Ruby Server. In Rails, Sinatra, et al, or simply the mail gem: Aids in development, testing, qa, and production troubleshooting of email issues without worrying that emails will get sent to actual live addresses.

Browser-drivers has pre-configured web-browser drivers that can be used out-of-the-box for the development of UI based applications. It is built using Ruby and utilises the Capybara library (A web application testing platform) to simulate how a user interacts with the applications being tested. It also has the facility to run Cuprite, which is a pure Ruby driver utilising Ferrum, a high level API to run headless tests.

The TestCentricity™ Mobile core framework for native mobile iOS and Android app testing implements a Screen Object Model DSL for use with Cucumber or RSpec and Appium. The gem also facilitates the configuration of the appropriate Appium capabilities required to establish a connection with locally or cloud hosted (using BrowserStack, Sauce Labs, or TestingBot services) iOS or Android devices or simulators.

EchoAPI is a Ruby gem designed to simplify the process of mocking and simulating external API calls. Ideal for both development and testing environments, EchoApi enables developers to define customizable responses to API requests, helping to ensure that applications behave as expected without the need to make real network requests. With EchoApi, you can easily simulate various API scenarios including success responses, errors, and edge cases.

Adds a 'gem rebuild' command for testing reproducible builds.

ONLYOFFICE DocumentServer testing framework, used in QA

Web apps on Rails. Simple, battle-tested conventions for building and testing MVC web applications. Works with any Rack-compatible server.

Databases on Rails. Build a persistent domain model by mapping database tables to Ruby classes. Strong conventions for associations, validations, aggregations, migrations, and testing come baked-in.

A toolkit for building modeling frameworks like Active Record. Rich support for attributes, callbacks, validations, serialization, internationalization, and testing.

A toolkit of support libraries and Ruby core extensions extracted from the Rails framework. Rich support for multibyte strings, internationalization, time zones, and testing.

rspec-rails is a testing framework for Rails 5+.

Inferno Core is an open source tool for testing data exchanges enabled by the FHIR standand

NUnit is a unit-testing framework for all .Net languages. Initially ported from JUnit, the current production release, version 2.5, is the sixth major release of this xUnit based unit testing tool for Microsoft .NET. It is written entirely in C# and has been completely redesigned to take advantage of many .NET language features, for example custom attributes and other reflection related capabilities. NUnit brings xUnit to all .NET languages.

Mutation Testing for Ruby.

Uspec is a shiny little spec framework for your apps! Unlike other testing frameworks there's no need for matchers, there can only be one assertion per test, and you never have to worry that your tests lack assertions.

Configure a blacklight application to use lando for local development. Lando will spin up a docker container with two instances of solr, one for development and one for testing.