/**
* Determine if the previous week was swapped due to a holiday.
* @param Carbon $date
* @return boolean
*/
private function previousWeekSwapped(Carbon $date)
{
$thisYear = $date->year;
// we want to check who had and should have add the cabin last week
$lastWeek = $date->subWeek();
$lastWeekNumber = $this->getWeekNumber($lastWeek->day, $lastWeek->month, $lastWeek->year);
// If subtracted to week 1, and the year's are different, no swap occurs.
// An example of this is the beginning of 2017.
if ($lastWeekNumber == 1 && $lastWeek->year != $thisYear) {
return false;
}
// Normal rules (even/odd) which side would get the cabin
$defaultFamily = $this->evenOddAssignment($lastWeekNumber, $lastWeek->year);
// With the holiday rules, who was the previous week given too.
$family = parent::determine($lastWeek->day, $lastWeek->month, $lastWeek->year);
// If they are different then they were swapped
return $defaultFamily != $family;
}
/**
* @test
*/
function it_respects_the_week_numbers_and_the_alternating_rules_at_the_end_of_the_year()
{
$ownership = new WeekOwnership();
// according to the calendar-list,
// wk1 in 2017 starts 12/30
// welches get odd weeks in odd years, so it should be welch
$side = $ownership->determine(31, 12, 2016);
$this->assertSame('welch', $side);
// A year when the last day of the week is 12/30,
// and that week belongs to the schu's. The next
// week starts on 12/31 and that year is even so
// the schu's get that. They should have two weeks there then.
$side = $ownership->determine(30, 12, 2021);
$this->assertSame('schu', $side);
$side = $ownership->determine(31, 12, 2021);
$this->assertSame('schu', $side);
}
