title: Jest tests run multiple times, once for every React class imported
body: <p>My jest tests are running multiple time and giving bad results. Experiment shows that each component imported causes the tests to run again.</p>
  <pre><code>const App = require(&quot;./App.js&quot;);
  const Check = require(&quot;./view/newOrder/Check.js&quot;);
  
  it(&quot;doesn't work at all&quot;, (done) =&gt; {
    console.log(&quot;This should only print once&quot;);
    done();
  });
  </code></pre>
  <p>prints</p>
  <pre><code>This should only print once 
  This should only print once 
  </code></pre>