/**
* Test for False Month Addition
*/
public function testAddingMonthWhenChangingTimezone()
{
$date = new Date(mktime(22, 59, 59, 1, 10, 2009));
$this->assertEquals(10, $date->toString('d'));
$this->assertEquals(1, $date->toString('M'));
$date->setTimezone('Europe/Berlin');
$date->addMonth(1);
$this->assertEquals(10, $date->toString('d'));
$this->assertEquals(2, $date->toString('M'));
}