$cases[] = array('2012-04-01 12:00:00', '2012-04-01 12:00:00', 0, 1);
$cases[] = array('2012-04-01 12:00:00', '2012-04-01 12:00:01', 0, 0);
$cases[] = array('2012-04-01 12:00:00', '2012-04-01 12:00:50', 60, 1);
$cases[] = array('2012-04-01 12:00:00', '2012-04-01 12:00:00', 0, 1);
$cases[] = array('2012-04-01 12:00:00', '2012-04-01 12:00:01', 0, 0);
$cases[] = array('2012-04-01 12:00:00', '2012-04-01 12:00:50', 60, 1);