title: How can I mock JodaTime actual date?
body: <p>I want to test this method:</p>
  
  <pre><code> public FirmOrder findActiveByModelColor(ModelColor modelColor) {
     Query query = em.createQuery("FROM FirmOrder fo WHERE fo.modelColor = :modelColor AND fo.year = :year AND fo.month = :month");
     query.setParameter("modelColor", modelColor);
     query.setParameter("year", new DateTime().year().get());
     query.setParameter("month", new DateTime().monthOfYear().get());
     return (FirmOrder) query.getSingleResult();
   }
  </code></pre>
  
  <p>but I need <code>DateTime().year().get()</code> and <code>DateTime().dayOfMonth().get()</code> to always return the same date</p>
  
  <p>tks</p>