title: How to stop rspec from running test unit at the end?
body: <p>Rspec tries to run Test::Unit tests at the end of running any spec file or whole test suite. It's still okay as I don't have any test unit test files but it tries to pass on the command line options given to rspec as they are to Test::Unit which results in</p>
  
  <pre><code>Finished in 0.54616 seconds
  7 examples, 0 failures
  invalid option: -O
  Test::Unit automatic runner.
  Usage: /usr/local/bin/rspec [options] [-- untouched arguments]
  
  -r, --runner=RUNNER              Use the given RUNNER.
                                   (c[onsole], f[ox], g[tk], g[tk]2, t[k])
  -n, --name=NAME                  Runs tests matching NAME.
                                   (patterns may be used).
  -t, --testcase=TESTCASE          Runs tests in TestCases matching TESTCASE.
                                   (patterns may be used).
  -I, --load-path=DIR[:DIR...]     Appends directory list to $LOAD_PATH.
  -v, --verbose=[LEVEL]            Set the output level (default is verbose).
                                   (s[ilent], p[rogress], n[ormal], v[erbose])
      --                           Stop processing options so that the
                                   remaining options will be passed to the
                                   test.
  -h, --help                       Display this help.
  
  Deprecated options:
      --console                    Console runner (use --runner).
      --gtk                        GTK runner (use --runner).
      --fox                        Fox runner (use --runner).
  </code></pre>
  
  <p>How do I stop rspec from running test unit tests?</p>
  
  <p>Versions of test gems I'm using are </p>
  
  <pre><code>gem 'rspec', '~&gt; 2.7'
  gem 'rspec-instafail'
  gem 'ci_reporter'
  gem 'rspec-rails', '~&gt; 2.7'
  gem 'shoulda', :require =&gt; false # 2.3.3
  gem 'factory_girl', '~&gt; 2.6.4'
  gem 'rr'
  gem 'timecop'
  gem 'rcov'
  gem 'database_cleaner'
  gem 'webmock', '~&gt; 1.9.3'
  gem 'vcr'
  gem 'fakeweb', '~&gt; 1.3.0'
  gem 'spork', '~&gt; 0.8.0'
  gem 'webrat'
  </code></pre>