/**
  * @depends testCreateCalendarObject
  */
 function testDeleteCalendarObject()
 {
     $backend = new PDO($this->pdo);
     $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
     $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
     $backend->createCalendarObject($returnedId, 'random-id', $object);
     $backend->deleteCalendarObject($returnedId, 'random-id');
     $data = $backend->getCalendarObject($returnedId, 'random-id');
     $this->assertNull($data);
 }