title: Adding rspec test for library module doesn't seem to pickup Expectations and Matchers
body: <p>I'm adding more rspec testing to my app and would like to test a ScoringMethods module, which is in /lib/scoring_methods.rb.  So I added a /spec/lib directory and added scoring_methods_spec.rb there.  I required spec_helper and set up the describe block as so: </p>
  
  <pre><code>require File.expand_path(File.dirname(__FILE__) + '/../spec_helper')
  
  describe ScoringMethods do
  
    describe "should have scorePublicContest method" do
      methods = ScoringMethods.instance_methods
      methods[0].should match(/scorePublicContest/)
    end
  end
  </code></pre>
  
  <p>Now <code>methods[0]</code> is a String and there is no problem matching the public method name with the regular expression.  And the relative path to "spec_helper" is correct.</p>
  
  <p>The problem is that the entire setup doesn't seem to use the rspec library.
  Running the example yields:</p>
  
  <pre><code>  ./spec/lib/scoring_methods_spec.rb:7: undefined method `match' for Spec::Rails::Example::RailsExampleGroup::Subclass_1::Subclass_1:Class (NoMethodError)
       ...
  </code></pre>
  
  <p>The entire Expectation and Matcher support seems to be missing.  To test my supposition, I changed a working helper spec by replacing "is_instance_of" to "is_foobar_of".  That test simply fails and says "is_foobar_of" is not a method of the targeted object; that it, this entire Spec::Rails::Example... hierarchy isn't present.</p>
  
  <p>I've tried using other matchers as well.  I've tried "be_instance_of" and some others.  It seems that I'm not including the rspec library properly.</p>
  
  <p>Finally, ScoringMethods is a module, just the same way Helpers are modules.  So I thought that it would be possible to test a module (as opposed to classes, such as Controllers and Models).</p>
  
  <p>I'd greatly appreciate your thoughts on what I've done wrong.  Perhaps there is a more effective way of testing library modules?  Thanks!</p>