title: Jest es6 modules: unexpected module import
body: <p>I'm trying to test a file which needs to import an es6 module like this:</p>
  
  <p><a href="https://repl.it/HG9t/0" rel="noreferrer">https://repl.it/HG9t/0</a></p>
  
  <p>It seems I'm missing some configurations to make it work properly.</p>
  
  <p>If you can achieve this with another unit testing framework easily, I'm interested too.</p>
  
  <p>Thank you in advance for your help.</p>