We wanted to use a 'propel-insert-sql' in our acceptance tests suite to clear DB before every test reducing interferences. We all learned here http://www.symfony-project.com/snippets/snippet/16 how to call a Pake task from our PHP code. To get a quiet 'propel-insert-sql' task letting 'test' task be verbose and reporting test results we must add a method to the pakeTask class in pakeTask.class.php file:

public function setVerbose() 
{
  $this->verbose = false;
}

and edit sfPakePropel.php file to make 'propel-insert-sql' task quiet:

function run_propel_insert_sql($task, $args)
{
  $task->setVerbose();
  _call_phing($task, 'insert-sql');
}

This way we have a lot quiter acceptance test suite and a clean DB whenever we want.