protected function assertDate(Date $d, $year, $month, $day, $hour = null, $minute = null, $second = null)
{
$this->assertSame($year, $d->getYear(), 'Date->year');
$this->assertSame($month, $d->getMonth(), 'Date->month');
$this->assertSame($day, $d->getDay(), 'Date->day');
if ($hour !== null) {
$this->assertSame($hour, $d->getHour(), 'Date->hour');
}
if ($minute !== null) {
$this->assertSame($minute, $d->getMinute(), 'Date->minute');
}
if ($second !== null) {
$this->assertSame($second, $d->getSecond(), 'Date->second');
}
}