title: Verify multiple images with ApprovalTest
body: <p>I have a method which generates a few images (1.jpg, 2.jpg...) writing them to the file system. I want to verify the results of this method with ApprovalTest. The problem is that <code>Approvals.verify(image)</code> names the received and approved files as the test method is named. So I cannot verify more than one image with one test.</p>
  
  <p>How could I verify multiple images in one test?</p>