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

Rack provides a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between (the so-called middleware) into a single...

BDD for Ruby. RSpec runner and example groups.

rspec-expectations provides a simple, readable API to express expected outcomes of a code example.

RSpec's 'test double' framework, with support for stubbing and mocking

The mime-types library provides a library and registry for information about MIME content type definitions. It can be used to determine defined filename extensions for MIME types, or to use filename extensions to look up the likely MIME type definitions. Version 3.0 is a major release that requi...

Rack::Test is a small, simple testing API for Rack apps. It can be used on its own or as a reusable starting point for Web frameworks and testing libraries to build on.

Sprockets is a Rack-based asset packaging system that concatenates and serves JavaScript, CoffeeScript, CSS, Sass, and SCSS.

Simplistic port-like solution for developers. It provides a standard and simplified way to compile against dependency libraries without messing up your system.

rubyzip is a ruby module for reading and writing zip files

Faker, a port of Data::Faker from Perl, is used to easily generate fake data: names, addresses, phone numbers, etc.

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Loofah excels at HTML sanitization (XSS prevention). It includes some nice HTML sanitizers, which are based on HTML5lib's safelist, so it most likely won't make your codes le...

A lightweight mime type lookup toy

A Ruby parser written in pure Ruby.

HTML sanitization for Rails applications

This gem can compare doms and assert certain elements exists in doms using Nokogiri.

Capybara is an integration testing tool for rack based web applications. It simulates how a user would interact with a website

Arel Really Exasperates Logicians Arel is a SQL AST manager for Ruby. It 1. Simplifies the generation of complex SQL queries 2. Adapts to various RDBMSes It is intended to be a framework framework; that is, you can build your own ORM with it, focusing on innovative object and collection modeli...

bootstrap-sass is a Sass-powered version of Bootstrap 3, ready to drop right into your Sass powered applications.

Ruby Sass is deprecated! See https://sass-lang.com/ruby-sass for details. Sass makes CSS fun again. Sass is an extension of CSS, adding nested rules, variables, mixins, selector inheritance, and more. It's translated to well-formatted, standard CSS using the command...