title: **INVALID** Test fails but ball is still green
body: <p><strong>Edit:</strong> Please see my own answer</p>
  
  <p>With the xUnit-plugin in Jenkins I have configured <strong>Post-build Actions > Publish xUnit test result report > Failed Tests</strong> to set the <strong>Build Status</strong> as red, with a treshold of 1 (set in the <strong>Total</strong> field). The other fields are left empty.</p>
  
  <p>But although having a test that fails, the status ball stays green. Worth mentioning is that the xUnit-plugin detects the failure. It is listed under <strong>Latest Test Result</strong> and also in the <strong>Test Result Trend</strong> graph.</p>
  
  <p>Along with the configuration form the is a description stating: "..A build is considered as unstable or failure if the new or total number of failed tests exceeds the specified thresholds.". But seems strange, 1 will never exceed 1. Are you not allowed to set it as failure for a single failed test case? I can not recall seeing this before.</p>