title: How can I write a Jenkins email-ext template to display test results like the standard test report
body: <p>I have tweaked the standard jelly template to display the current test results in a table, however I really want to be able to display diffs as seen in Jenkins own test results page.</p>
  
  <p>For example:</p>
  
  <pre><code>JUnit Tests: 0 failures (±0) , 1 skipped (+1)
  
  Package               Duration   Fail  (diff)  Skip  (diff)  Total  (diff)
  foo.bar.baz              89 ms      0      0     1       +1     5       +2
  </code></pre>