A long-lived project that still receives updates
factory_bot provides a framework and DSL for defining and using factories - less error-prone, more explicit, and all-around easier to work with than fixtures.
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
 Dependencies

Development

Runtime

 Project Readme

factory_bot Build Status Code Climate Gem Version

factory_bot 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_bot with Rails, see factory_bot_rails.

Interested in the history of the project name?

Transitioning from factory_girl?

Check out the guide.

Documentation

See our extensive reference, guides, and cookbook in the factory_bot book.

For information on integrations with third party libraries, such as RSpec or Rails, see the factory_bot wiki.

We also have a detailed introductory video, available for free on Upcase.

Install

Run:

bundle add factory_bot

To install the gem manually from your shell, run:

gem install factory_bot

Supported Ruby versions

Supported Ruby versions are listed in .github/workflows/build.yml

More Information

Useful Tools

Contributing

Please see CONTRIBUTING.md.

factory_bot was originally written by Joe Ferris and is maintained by thoughtbot. Many improvements and bugfixes were contributed by the open source community.

License

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

About thoughtbot

thoughtbot

This repo 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. We are available for hire.