Skip to content


Subversion checkout URL

You can clone with
Download ZIP
A fancy man's spork
Ruby Cucumber
Fetching latest commit...
Cannot retrieve the latest commit at this time.
Failed to load latest commit information.

Flatware Build Status Code Climate

Flatware is a distributed cucumber runner.


  • ZeroMQ > 2.1


Add this to your Gemfile:

gem 'flatware'

and bundle install.


To run your entire suite with the default cucumber options, just:

$ flatware

If you'd like to limit the number of forked workers, you can pass the 'w' flag:

$ flatware -w 3

You can also pass most cucumber options to Flatware. For example, to run only features that are not tagged 'javascript', you can:

$ flatware cucumber -t ~@javascript

Typical Usage in a Rails App

Add the following to your config/database.yml:

  database: foo_test


  database: foo_test<%=ENV['TEST_ENV_NUMBER']%>

Run the following:

$ rake db:setup # if not already done
$ flatware fan rake db:test:prepare

Now you are ready to rock:

$ flatware

Planned Features

  • Reliable enough to use as part of your Continuous Integration system
  • Always accounts for every feature you ask it to run
  • Use heuristics to run your slowest tests first
  • speak Cucumber's DRB protocol; if you know how to use Spork you know how to use Flatware

Design Goals


  • Fully test at an integration level. Don't be afraid to change the code. If you break it you'll know.
  • Couple as loosely as possible, and only to the most stable/public bits of Cucumber.


  • Projects define their own preperation scripts
  • Only distribute to local cores (for now)
  • Only handle cucumber


  • Depend on a dedicated messaging library
  • Be acountable for completed work; provide progress report regardless of completing the suite.


Flatware is tested with aruba. In order to get a demo cucumber project you can add the @no-clobber tag to features/flatware.feature and run the test with cucumber features/flatware.feature. Now you should have a ./tmp/aruba directory. CD there and flatware will be in your path so you can tinker away.


To learn more about the messaging system that Flatware uses, take a look at the excellent ZeroMQ guide.

Contributing to Flatware

  • Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet
  • Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it
  • Fork the project
  • Start a feature/bugfix branch
  • Commit and push until you are happy with your contribution
  • Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
  • Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.
Something went wrong with that request. Please try again.