title: Ruby on Rails: Unit Testing non activerecord models and still load fixtures
body: <p>I may be missing something but I am stuck in this scenario:</p>
  
  <p>I have a non activerecord model, which I want to test. I have derived its test case class from: <strong>Test::Unit::TestCase</strong>. </p>
  
  <p>However, the test case class for the model, uses within itself, other activerecord model classes and I want to load fixtures for them. My problem is that the <strong>fixtures</strong> class method is available only when I subclass the test case class from <strong>ActiveSupport::TestCase</strong> (it is defined within <strong>ActiveRecord::TestFixtures</strong> which gets included in ActiveSupport::TestCase).</p>
  
  <p>Any help, coz running the tests gives me the error:  undefined method "fixtures" (which is understandable) and in case I derive my test case class from ActiveSupport::TestCase it complains that there is no corresponding DB table. Also, I don't want to create a dummy table for backing my model class.  </p>
  
  <p>Thanks a ton!</p>