<p>This is how we have things set up for our Rails projects (with RSpec and Cucumber goodness).</p>
<p>Currently (as of version 0.1.3) there is a bug when ObjectFactory is used as a gem – so we install it as a plugin (<tt>cd vendor/plugins && gem unpack brightbox-object-factory</tt> does the trick). However, I promise I <strong>will</strong> get this fixed very soon.</p>
<h2>Preparation</h2>
<p>We add a setup file to the lib folder: <tt>lib/prepare_object_factory.rb</tt>.</p>
<p>This contains a function that prepares the ObjectFactory for use:</p>
<pre><code>
def prepare_object_factory
when_creating_a Company,
:auto_generate => [:name, :address, :city, :postcode, :telephone]
when_creating_a Person,
:auto_generate => [:first_name, :last_name],
:auto_confirm => :password,
:generate_email_address => :email,
:set => { :age => 22 },
:generate => { :company => lambda { a_saved Company } }
end
</code></pre>
<p>Note the use of :generate and lambda to ensure that people are linked to a (dynamically created) Company (unless you explicitly override it at creation-time).</p>
<h2>RSpec</h2>
<p>We then add the following to our <tt>spec/spec_helper.rb</tt></p>
<pre><code>
require 'object_factory'
require 'lib/prepare_object_factory'
Spec::Runner.configure do |config|
# various bits of config
config.before :all do
prepare_object_factory
end
end
</code></pre>
<p>This makes sure that the factory is prepared before running the specs.</p>
<p>You can then use it in your specs as follows:</p>
<pre><code>
describe Person do
it "should have a first name" do
@person = a Person, :first_name => ''
@person.should_not be_valid
@person.should have(1).errors_on(:first_name)
end
it "should belong to a company" do
@person = a Person, :company => nil
@person.should_not be_valid
@person.should have(1).errors_on(:company)
end
# und so weiter
end
</code></pre>
<h2>Cucumber</h2>
<p>We add the following to <tt>features/support/env.rb</tt>:</p>
<pre><code>
require 'object_factory'
require 'lib/prepare_object_factory'
prepare_object_factory
</code></pre>
<p>And we use it in our steps as follows:</p>
<pre><code>
Given /^someone called (.*)$/ do | first_name |
person = a_saved Person, :first_name => first_name
end
</code></pre>
<p>Pretty simple huh?</p>
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