factory_girl

https://github.com/thoughtbot/factory_girl

Ruby

A library for setting up Ruby objects as test data.

Mail::Field#initialize

Create a field by name and optional value:

 Mail::Field.new("field-name", "value")
 # => #<Mail::Field …>

Values that aren't strings or arrays are coerced to Strings with `#to_s`.

 Mail::Field.new("field-name", 1234)
 # => #<Mail::Field …>

 Mail::Field.new('content-type', ['text', 'plain', {:charset => 'UTF-8'}])
 # => #<Mail::Field …>

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--Field-initialize-for-pr

# Commit to git

git add git commit -m "better docs for Mail::Field#initialize"

# 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--Field-initialize-for-pr

hub pull-request

# Celebrate!