Fivemat is a MiniTest/RSpec/Cucumber formatter that gives each test file its own line of dots during testing. It aims to provide test output that is neither too verbose nor too minimal.

Cucumber Expressions offer similar functionality to Regular Expressions, with a syntax that is easier to read and write. Cucumber Expressions are extensible with parameter types.

Cucumber Messages for Ruby is a library which allows serialization and deserialization of the protocol buffer messages used in Cucumber.

The coderake-compiler-dock gem provides a cross compiler environment for building gems on a variety of platforms (GNU/Linux, JRuby, Windows and Mac).

This package provides the default HTML formatter for the SimpleCov code coverage tool for Ruby version 1.9 and above.

Rspec-expectations provides a simple API to express expected outcomes of a code example.

Minitest provides a complete suite of Ruby testing facilities supporting TDD, BDD, mocking, and benchmarking.

Mini-portile is a port/recipe system for Ruby developers. It provides a standard way to compile against specific versions of libraries to reproduce user environments.

This module provides a String#unindent Ruby method to unindent strings, which can be useful to unindent multiline strings embedded in already-indented code.

Cucumber's wire protocol allows step definitions to be implemented and invoked on any platform.

MiniTest Moar add some additional features and changes some default behaviours in MiniTest. For instance, Moar replaces the MiniTest Object#stub with a global stub method.

Rake is a Make-like program where tasks and dependencies are specified in standard Ruby syntax.

Rspec-expectations provides a simple API to express expected outcomes of a code example.

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

This Ruby library provides a JSON implementation written as a native C extension.

Mini-portile is a port/recipe system for Ruby developers. It provides a standard way to compile against specific versions of libraries to reproduce user environments.

Minitest bonus assertions provides extra MiniTest assertions. For instance, it provides assert_true, assert_false and assert_set_equal.

Asciidoctor is a text processor and publishing toolchain for converting AsciiDoc content to HTML5, DocBook 5, PDF, and other formats.

Rspec-mocks provides RSpec's "test double" framework, with support for stubbing and mocking.

Minitest-hooks adds around, before_all, after_all, around_all hooks for Minitest. This allows, for instance, running each suite of specs inside a database transaction, running each spec inside its own savepoint inside that transaction. This can significantly speed up testing for specs that share expensive database setup code.

Docile is a Ruby library that provides an interface for creating embedded domain specific languages (EDSLs) that manipulate existing Ruby classes.

The mime-types library provides a library and registry for information about Multipurpose Internet Mail Extensions (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.

minitest-focus gives the ability focus on a few tests with ease without having to use command-line arguments. It introduces a focus class method for use in testing classes, specifying that the next defined test is to be run.

Hoe is a rake/rubygems helper for project Rakefiles. It helps manage, maintain, and release projects and includes a dynamic plug-in system allowing for easy extensibility. Hoe ships with plug-ins for all the usual project tasks including rdoc generation, testing, packaging, deployment, and announcement.