public function testSetGetParts()
 {
     $msg = new Zend_Mime_Message();
     // No Parts
     $p = $msg->getParts();
     $this->assertTrue(is_array($p));
     $this->assertTrue(count($p) == 0);
     $p2 = array();
     $p2[] = new Zend_Mime_Part('This is a test');
     $p2[] = new Zend_Mime_Part('This is another test');
     $msg->setParts($p2);
     $p = $msg->getParts();
     $this->assertTrue(is_array($p));
     $this->assertTrue(count($p) == 2);
 }