title: Use qDebug in unit testing Qt
body: <p>I wanted to use qDebug in the Qt unit testing, i had written the code of qDebug but it is not getting diplayed
  I even used</p>
  
  <pre><code>ctest -R alkimia-alkinvoice -VV
  </code></pre>
  
  <p>But even this shows only the location where the error is coming from.
  but i needed to use qDebug for more information about the error</p>