I wanted to try using mocha to write unit tests with mocks. After requiring &quot;rubygems&quot; a NoMethodError exception was thrown when attempting to run the tests. The method which wasn&#39;t found was &#39;run&#39;.<div>

<br></div><div>If I remove the call to require &quot;rubygems&quot; my test fails because I can&#39;t use mocha but the NoMethodError exception which was thrown is not thrown anymore.</div><div><br></div><div>Am I missing something?</div>

<div><br></div><div>Thanks,</div><div>Gabriel Ayuso</div>