factory_girl

https://github.com/thoughtbot/factory_girl

Ruby

A library for setting up Ruby objects as test data.

Mail::Header#raw_source

The preserved raw source of the header as you passed it in, untouched
for your Regexing glory.

Source | Google | Stack overflow

Edit

git clone [email protected]:thoughtbot/factory_girl.git
cd factory_girl
open

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Mail--Header-raw_source-for-pr

# Commit to git
git add git commit -m "better docs for Mail::Header#raw_source"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-Mail--Header-raw_source-for-pr
hub pull-request

# Celebrate!