argent-smith

bundler

Bundler manages an application's dependencies through its entire life, across many machines, systematically and repeatably

fakeweb

FakeWeb is a helper for faking web requests in Ruby. It works at a global level, without modifying code or writing extensive stubs.

pry

An IRB alternative and runtime developer console

rake

Rake is a Make-like program implemented in Ruby. Tasks and dependencies are specified in standard Ruby syntax. Rake has the following features: * Rakefiles (rake's version of Makefiles) are completely defined in standard Ruby syntax. No XML files to edit. No quirky Makefile syntax to worry about (is that a tab or a space?) * Users can specify tasks with prerequisites. * Rake supports rule patterns to synthesize implicit tasks. * Flexible FileLists that act like arrays but know about manipulating file names and paths. * A library of prepackaged tasks to make building rakefiles easier. For example, tasks for building tarballs and publishing to FTP or SSH sites. (Formerly tasks for building RDoc and Gems were included in rake but they're now available in RDoc and RubyGems respectively.) * Supports parallel execution of tasks.

rdoc

RDoc produces HTML and command-line documentation for Ruby projects. RDoc includes the +rdoc+ and +ri+ tools for generating and displaying documentation from the command-line.

rspec

BDD for Ruby

simplecov

Code coverage for Ruby 1.9+ with a powerful configuration library and automatic merging of coverage across test suites