factory_girl Build Status Dependency Status Code Climate

factory_girl is a fixtures replacement with a straightforward definition syntax, support for multiple build strategies (saved instances, unsaved instances, attribute hashes, and stubbed objects), and support for multiple factories for the same class (user, admin_user, and so on), including factory inheritance.

If you want to use factory_girl with Rails, see factory_girl_rails.


You should find the documentation for your version of factory_girl on Rubygems.

See GETTING_STARTED for information on defining and using factories.


gem install factory_girl

or add the following line to Gemfile:

gem 'factory_girl'

and run bundle install from your shell.

Supported Ruby versions

The factory_girl 3.x+ series supports MRI Ruby 1.9. Additionally, factory_girl 3.6+ supports JRuby while running in 1.9 mode. See GETTING_STARTED for more information on configuring the JRuby environment.

For versions of Ruby prior to 1.9, please use factory_girl 2.x.

More Information


Please see CONTRIBUTING.md.

factory_girl was originally written by Joe Ferris and is now maintained by Josh Clayton. Many improvements and bugfixes were contributed by the open source community.

Need Help?

We offer 1-on-1 coaching. We can help you set up factory_girl, clean up your factories.rb, or speed up slow tests. Get in touch.


factory_girl is Copyright © 2008-2015 Joe Ferris and thoughtbot. It is free software, and may be redistributed under the terms specified in the LICENSE file.

About thoughtbot


factory_girl is maintained and funded by thoughtbot, inc. The names and logos for thoughtbot are trademarks of thoughtbot, inc.

We love open source software! See our other projects or hire us to design, develop, and grow your product.