title: Can't see test files
body: <p>I'm trying to get robolectic junit tests workin in Android Studio. I've downloaded this sample <a href="https://github.com/robolectric/robolectric-samples" rel="nofollow noreferrer">https://github.com/robolectric/robolectric-samples</a> and selected "Import non-android Studio project", and selected the top level <code>build.gradle</code> file.</p>
  
  <p>So here is a path to a test file which looks correct to me:</p>
  
  <pre><code>robolectric-samples/android-api-21/src/test/java/com/example/activity/MainActivityTest.java
  </code></pre>
  
  <p>But in android studio there is no sign of the *Test.java files.</p>
  
  <p><img src="https://i.stack.imgur.com/YQxpF.png" alt="Where is the test"></p>