title: Can't run and debug groovy tests under intellij idea
body: <p>I try to embed groovy test to java project.
  I start with spock examples - <a href="https://github.com/spockframework/spock-example" rel="noreferrer">https://github.com/spockframework/spock-example</a></p>
  
  <p>Examples is compile and execute by running maven goal test but if i try to run test under intellij idea (ctrl+F10 under test method) it failure with classpath error.</p>
  
  <blockquote>
    <p>Error running HelloSpockSpec.length of Spock's and his friends' names:
    Class 'HelloSpockSpec' not found in module 'spock-example'</p>
  </blockquote>
  
  <p>I try to apply advices from <a href="https://stackoverflow.com/questions/21389849/intellij-groovy-spock">IntelliJ + Groovy + Spock</a> but it didn't help.</p>