title: Maven: change the directory in which tests are executed
body: <p>In my code I have set to create some files in <code>./</code> directory, because when the software will be deployed in the installation machine, all the configuration files will be created in <code>./</code> if it's the first run</p>
  
  <p>Unfortunately when I build the project, and Maven executes tests, all the files are created in the project directory.<br>
  I want those files to be created in <code>target/test-run/</code><br>
  How can I do it?</p>
  
  <p>Thanks</p>