/**
* @test
*/
public function testDiffs()
{
$startOfYear = HammerTime::today()->startOfYear();
$endOfYear = HammerTime::today()->endOfYear();
$startOfNextYear = HammerTime::today()->startOfYear()->addYear();
$this->assertEquals(11, $endOfYear->diffInMonths($startOfYear));
$this->assertEquals(12, $startOfNextYear->diffInMonths($startOfYear));
for ($month = HammerTime::JANUARY; $month <= HammerTime::DECEMBER; $month++) {
$monthDate = HammerTime::today()->setMonth($month);
$start = $monthDate->startOfMonth();
$end = clone $monthDate;
$end->endOfMonth();
$next = clone $start;
$next->addMonth();
$this->assertEquals(0, $end->diffInMonths($start));
$this->assertEquals(1, $next->diffInMonths($start));
}
}
