public function testMinMaxDatetime()
{
$input = Builder::datetime();
$input->min('2004-08-14T15:52:01+00:00');
$input->max('2005-08-14T15:52:01+00:00');
$input->val('Mon, 15 Aug 2005 15:52:01 +0000');
$this->assertFalse($input->isValid());
$input->val('Mon, 15 Aug 2004 15:52:01 +0000');
$this->assertTrue($input->isValid());
}