title: Test instance method of mailer - Rails 2.3
body: <pre><code>class ReportMailer &lt; ActionMailer::Base
    def venues
      @venues ||= Venue.find(VENUE_MAP.values)
    end
  end
  </code></pre>
  
  <p>How can I test venues, if:</p>
  
  <pre><code>ReportMailer.new =&gt; nil
  </code></pre>
  
  <p>How is this behavior called? is ReportMailer an abstract class?</p>