Commander aims to be a complete solution for Ruby command-line executables. Commander bridges the gap between other terminal related libraries (OptionParser, HighLine), while providing many new features, and an elegant API.

Discount is an implementation of John Gruber's Markdown markup language in C. It implements all of the language described in the markdown syntax document and passes the Markdown 1.0 test suite.

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

Appraisal integrates with bundler and rake to test your library against different versions of dependencies in repeatable scenarios called "appraisals." Appraisal is designed to make it easy to check for regressions in your library without interfering with day-to-day development using Bundler.

Test::Unit is unit testing framework for Ruby, based on xUnit principles. These were originally designed by Kent Beck, creator of extreme programming software development methodology, for Smalltalk's SUnit. It allows writing tests, checking results and automated testing in Ruby.

mkmf-lite is a light version of Ruby's mkmf.rb designed for use as a library. It does not create packages, builds, or log files of any kind. Instead, it provides mixin methods that you can use in FFI or tests to check for the presence of header files, constants, and so on.

Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests. This is an older version of VCR that is free software under the Expat license. The project later switched to the Hippocratic license, which is non-free. Do not use it in new free software projects.

inf-ruby provides a Read Eval Print Loop (REPL) buffer, allowing for easy interaction with a Ruby subprocess. Features include support for detecting specific uses of Ruby, e.g., when using Rails, and using an appropriate console.

If you are using Guix shell with manifest.scm, the inf-ruby-wrapper-command customization variable could be helpful.

Propshaft is an asset pipeline library for Rails. It's built for an era where bundling assets to save on HTTP connections is no longer urgent, where JavaScript and CSS are either compiled by dedicated Node.js bundlers or served directly to the browsers, and where increases in bandwidth have made the need for minification less pressing. These factors allow for a dramatically simpler and faster asset pipeline compared to previous options, like Sprockets.

This package provides telnet client functionality.

Documentation at https://melpa.org/#/poly-ruby

ActionText edits and displays rich text in Rails applications.

IO.console adds console capabilities to Ruby IO instances.

ActionView provides conventions and helpers for building web pages in Ruby.

Rspec-core provides the RSpec test runner and example groups.

Rspec-core provides the RSpec test runner and example groups.

Middleware is a generalized implementation of a middleware abstraction for Ruby.

This library integrates the SASS stylesheet language into Ruby on Rails.

This library provides a simple API for XML processing in Ruby.

This library provides Ruby bindings for the Mac OSX FSEvents API.

Pygmentize provides a simple way to call pygmentize from within a Ruby application.

Formatador is a Ruby library to format text printed to the standard output stream.

RSpec::Wait strives to make it easier to test asynchronous or slow interactions.

This package implements a variant of Set whose elements are sorted in ascending order