/**
* @dataProvider data_week
*/
public function test_WOWBY(LocalDate $date, DayOfWeek $dow, $week, $wby)
{
$weekDef = WeekFields::ISO();
$dowField = $weekDef->dayOfWeek();
$wowbyField = $weekDef->weekOfWeekBasedYear();
$yowbyField = $weekDef->weekBasedYear();
$this->assertEquals($date->get($dowField), $dow->getValue());
$this->assertEquals($date->get($wowbyField), $week);
$this->assertEquals($date->get($yowbyField), $wby);
}
/**
* @dataProvider data_week
*/
public function test_parse_weeks_LENIENT($date, DayOfWeek $dow, $week, $wby)
{
$f = (new DateTimeFormatterBuilder())->appendValue(IsoFields::WEEK_BASED_YEAR())->appendLiteral('-')->appendValue(IsoFields::WEEK_OF_WEEK_BASED_YEAR())->appendLiteral('-')->appendValue(CF::DAY_OF_WEEK())->toFormatter()->withResolverStyle(ResolverStyle::LENIENT());
$parsed = LocalDate::parseWith($wby . "-" . $week . "-" . $dow->getValue(), $f);
$this->assertEquals($parsed, $date);
}
/**
* Returns the previous-or-same day-of-week adjuster, which adjusts the date to the
* first occurrence of the specified day-of-week before the date being adjusted
* unless it is already on that day in which case the same object is returned.
* <p>
* The ISO calendar system behaves as follows:<br>
* The input 2011-01-15 (a Saturday) for parameter (MONDAY) will return 2011-01-10 (five days earlier).<br>
* The input 2011-01-15 (a Saturday) for parameter (WEDNESDAY) will return 2011-01-12 (three days earlier).<br>
* The input 2011-01-15 (a Saturday) for parameter (SATURDAY) will return 2011-01-15 (same as input).
* <p>
* The behavior is suitable for use with most calendar systems.
* It uses the {@code DAY_OF_WEEK} field and the {@code DAYS} unit,
* and assumes a seven day week.
*
* @param DayOfWeek $dayOfWeek the day-of-week to check for or move the date to, not null
* @return TemporalAdjuster the previous-or-same day-of-week adjuster, not null
*/
public static function previousOrSame(DayOfWeek $dayOfWeek)
{
$dowValue = $dayOfWeek->getValue();
return self::fromCallable(function (Temporal $temporal) use($dowValue) {
$calDow = $temporal->get(ChronoField::DAY_OF_WEEK());
if ($calDow == $dowValue) {
return $temporal;
}
$daysDiff = $dowValue - $calDow;
return $temporal->minus($daysDiff >= 0 ? 7 - $daysDiff : -$daysDiff, ChronoUnit::DAYS());
});
}
