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diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -143,6 +143,7 @@
'PhutilCalendarRawNode' => 'parser/calendar/data/PhutilCalendarRawNode.php',
'PhutilCalendarRecurrenceList' => 'parser/calendar/data/PhutilCalendarRecurrenceList.php',
'PhutilCalendarRecurrenceRule' => 'parser/calendar/data/PhutilCalendarRecurrenceRule.php',
+ 'PhutilCalendarRecurrenceRuleTestCase' => 'parser/calendar/data/__tests__/PhutilCalendarRecurrenceRuleTestCase.php',
'PhutilCalendarRecurrenceSet' => 'parser/calendar/data/PhutilCalendarRecurrenceSet.php',
'PhutilCalendarRecurrenceSource' => 'parser/calendar/data/PhutilCalendarRecurrenceSource.php',
'PhutilCalendarRecurrenceTestCase' => 'parser/calendar/data/__tests__/PhutilCalendarRecurrenceTestCase.php',
@@ -732,6 +733,7 @@
'PhutilCalendarRawNode' => 'PhutilCalendarContainerNode',
'PhutilCalendarRecurrenceList' => 'PhutilCalendarRecurrenceSource',
'PhutilCalendarRecurrenceRule' => 'PhutilCalendarRecurrenceSource',
+ 'PhutilCalendarRecurrenceRuleTestCase' => 'PhutilTestCase',
'PhutilCalendarRecurrenceSet' => 'Phobject',
'PhutilCalendarRecurrenceSource' => 'Phobject',
'PhutilCalendarRecurrenceTestCase' => 'PhutilTestCase',
diff --git a/src/parser/calendar/data/PhutilCalendarRecurrenceRule.php b/src/parser/calendar/data/PhutilCalendarRecurrenceRule.php
--- a/src/parser/calendar/data/PhutilCalendarRecurrenceRule.php
+++ b/src/parser/calendar/data/PhutilCalendarRecurrenceRule.php
@@ -3,10 +3,11 @@
final class PhutilCalendarRecurrenceRule
extends PhutilCalendarRecurrenceSource {
+ private $startDateTime;
private $frequency;
private $until;
private $count;
- private $interval;
+ private $interval = 1;
private $bySecond;
private $byMinute;
private $byHour;
@@ -18,6 +19,39 @@
private $bySetPosition;
private $weekStart = 'MO';
+ private $cursorSecond;
+ private $cursorMinute;
+ private $cursorHour;
+ private $cursorWeek;
+ private $cursorDay;
+ private $cursorMonth;
+ private $cursorYear;
+
+ private $setSeconds;
+ private $setMinutes;
+ private $setHours;
+ private $setDays;
+ private $setMonths;
+ private $setYears;
+
+ private $stateSecond;
+ private $stateMinute;
+ private $stateHour;
+ private $stateDay;
+ private $stateMonth;
+ private $stateYear;
+
+ private $maps = array();
+
+ public function setStartDateTime(PhutilCalendarDateTime $start) {
+ $this->startDateTime = $start;
+ return $this;
+ }
+
+ public function getStartDateTime() {
+ return $this->startDateTime;
+ }
+
public function setFrequency($frequency) {
$this->frequency = $frequency;
return $this;
@@ -117,6 +151,15 @@
return $this->byMonth;
}
+ public function setByWeekNumber($by_week_number) {
+ $this->byWeekNumber = $by_week_number;
+ return $this;
+ }
+
+ public function getByWeekNumber() {
+ return $this->byWeekNumber;
+ }
+
public function setBySetPosition($by_set_position) {
$this->bySetPosition = $by_set_position;
return $this;
@@ -135,8 +178,642 @@
return $this->weekStart;
}
+
+ public function resetSource() {
+ $date = $this->getStartDateTime();
+
+ $this->cursorSecond = $date->getSecond();
+ $this->cursorMinute = $date->getMinute();
+ $this->cursorHour = $date->getHour();
+
+ // TODO: Figure this out.
+ $this->cursorWeek = null;
+ $this->cursorDay = $date->getDay();
+ $this->cursorMonth = $date->getMonth();
+ $this->cursorYear = $date->getYear();
+
+ $this->setSeconds = array();
+ $this->setMinutes = array();
+ $this->setHours = array();
+ $this->setDays = array();
+ $this->setMonths = array();
+ $this->setYears = array();
+
+ $this->stateSecond = null;
+ $this->stateMinute = null;
+ $this->stateHour = null;
+ $this->stateDay = null;
+ $this->stateMonth = null;
+ $this->stateYear = null;
+ }
+
public function getNextEvent($cursor) {
- throw new PhutilMethodNotImplementedException();
+ $date = $this->getStartDateTime();
+
+ $all_day = $date->getIsAllDay();
+ if ($all_day) {
+ $this->nextDay();
+ } else {
+ $this->nextSecond();
+ }
+
+ $result = id(new PhutilCalendarAbsoluteDateTime())
+ ->setViewerTimezone($this->getViewerTimezone())
+ ->setYear($this->stateYear)
+ ->setMonth($this->stateMonth)
+ ->setDay($this->stateDay);
+
+ if ($all_day) {
+ $result->setIsAllDay(true);
+ } else {
+ $result
+ ->setHour($this->stateHour)
+ ->setMinute($this->stateMinute)
+ ->setSecond($this->stateSecond);
+ }
+
+ return $result;
}
+
+ protected function nextSecond() {
+ if ($this->setSeconds) {
+ $this->stateSecond = array_pop($this->setSeconds);
+ return;
+ }
+
+ $frequency = $this->getFrequency();
+ $interval = $this->getInterval();
+ $is_secondly = ($frequency == 'SECONDLY');
+ $by_second = $this->getBySecond();
+ $by_setpos = $this->getBySetPosition();
+
+ while (!$this->setSeconds) {
+ $this->nextMinute();
+
+ if ($is_secondly || $by_second) {
+ $seconds = $this->newSecondsSet(
+ ($is_secondly ? $interval : 1),
+ $by_second);
+ } else {
+ $seconds = array(
+ $this->cursorSecond,
+ );
+ }
+
+ if ($is_secondly && $by_setpos) {
+ $seconds = $this->applySetPos($seconds, $by_setpos);
+ }
+
+ $this->setSeconds = array_reverse($seconds);
+ }
+
+ $this->stateSecond = array_pop($this->setSeconds);
+ }
+
+ protected function nextMinute() {
+ if ($this->setMinutes) {
+ $this->stateMinute = array_pop($this->setMinutes);
+ return;
+ }
+
+ $frequency = $this->getFrequency();
+ $interval = $this->getInterval();
+ $is_secondly = ($frequency === 'SECONDLY');
+ $is_minutely = ($frequency === 'MINUTELY');
+ $by_minute = $this->getByMinute();
+ $by_setpos = $this->getBySetPosition();
+
+ while (!$this->setMinutes) {
+ $this->nextHour();
+
+ if ($is_minutely || $by_minute) {
+ $minutes = $this->newMinutesSet(
+ ($is_minutely ? $interval : 1),
+ $by_minute);
+ } else if ($is_secondly) {
+ $minutes = $this->newMinutesSet(
+ 1,
+ array());
+ } else {
+ $minutes = array(
+ $this->cursorMinute,
+ );
+ }
+
+ if ($is_minutely && $by_setpos) {
+ $minutes = $this->applySetPos($minutes, $by_setpos);
+ }
+
+ $this->setMinutes = array_reverse($minutes);
+ }
+
+ $this->stateMinute = array_pop($this->setMinutes);
+ }
+
+ protected function nextHour() {
+ if ($this->setHours) {
+ $this->stateHour = array_pop($this->setHours);
+ return;
+ }
+
+ $frequency = $this->getFrequency();
+ $interval = $this->getInterval();
+ $is_secondly = ($frequency === 'SECONDLY');
+ $is_minutely = ($frequency === 'MINUTELY');
+ $is_hourly = ($frequency === 'HOURLY');
+ $by_hour = $this->getByHour();
+ $by_setpos = $this->getBySetPosition();
+
+ while (!$this->setHours) {
+ $this->nextDay();
+
+ if ($is_minutely || $by_hour) {
+ $hours = $this->newHoursSet(
+ ($is_hourly ? $interval : 1),
+ $by_hour);
+ } else if ($is_secondly || $is_minutely) {
+ $hours = $this->newHoursSet(
+ 1,
+ array());
+ } else {
+ $hours = array(
+ $this->cursorHour,
+ );
+ }
+
+ if ($is_hourly && $by_setpos) {
+ $hours = $this->applySetPos($hours, $by_setpos);
+ }
+
+ $this->setHours = array_reverse($hours);
+ }
+
+ $this->stateHour = array_pop($this->setHours);
+ }
+
+ protected function nextDay() {
+ if ($this->setDays) {
+ $this->stateDay = array_pop($this->setDays);
+ return;
+ }
+
+ $frequency = $this->getFrequency();
+ $interval = $this->getInterval();
+ $is_secondly = ($frequency === 'SECONDLY');
+ $is_minutely = ($frequency === 'MINUTELY');
+ $is_hourly = ($frequency === 'HOURLY');
+ $is_daily = ($frequency === 'DAILY');
+ $is_weekly = ($frequency === 'WEEKLY');
+
+ $by_day = $this->getByDay();
+ $by_monthday = $this->getByMonthDay();
+ $by_yearday = $this->getByYearDay();
+ $by_weekno = $this->getByWeekNumber();
+ $by_setpos = $this->getBySetPosition();
+
+ while (!$this->setDays) {
+ $this->nextMonth();
+
+ if ($is_daily || $by_day || $by_monthday || $by_yearday || $by_weekno) {
+ $weeks = $this->newDaysSet(
+ ($is_daily ? $interval : null),
+ ($is_weekly ? $interval : null),
+ $by_day,
+ $by_monthday,
+ $by_yearday,
+ $by_weekno,
+ $this->getWeekStart());
+ } else if ($is_secondly || $is_minutely || $is_hourly) {
+ $all_values = true;
+ $weeks = $this->newDaysSet(
+ 1,
+ null,
+ array(),
+ array(),
+ array(),
+ array(),
+ $this->getWeekStart());
+ } else {
+ $weeks = array(
+ array($this->cursorDay),
+ );
+ }
+
+ // Apply weekly BYSETPOS, if one exists.
+ if ($is_weekly && $by_setpos) {
+ $weeks = $this->applySetPos($weeks, $by_setpos);
+ }
+
+ // Unpack the weeks into days.
+ $days = array_mergev($weeks);
+
+ // Apply daily BYSETPOS, if one exists.
+ if ($is_daily && $by_setpos) {
+ $days = $this->applySetPos($days, $by_setpos);
+ }
+
+ $this->setDays = array_reverse($days);
+ }
+
+ $this->stateDay = array_pop($this->setDays);
+ }
+
+ protected function nextMonth() {
+ if ($this->setMonths) {
+ $this->stateMonth = array_pop($this->setMonths);
+ return;
+ }
+
+ $frequency = $this->getFrequency();
+ $interval = $this->getInterval();
+ $is_secondly = ($frequency === 'SECONDLY');
+ $is_minutely = ($frequency === 'MINUTELY');
+ $is_hourly = ($frequency === 'HOURLY');
+ $is_daily = ($frequency === 'DAILY');
+ $is_weekly = ($frequency === 'WEEKLY');
+ $is_monthly = ($frequency === 'MONTHLY');
+
+ $by_month = $this->getByMonth();
+ $by_setpos = $this->getBySetPosition();
+
+ while (!$this->setMonths) {
+ $this->nextYear();
+
+ if ($is_monthly || $by_month) {
+ $months = $this->newMonthsSet(
+ ($is_monthly ? $interval : 1),
+ $by_month);
+ } else if (
+ $is_secondly || $is_minutely || $is_hourly ||
+ $is_daily || $is_weekly) {
+ $months = $this->newMonthsSet(
+ 1,
+ array());
+ } else {
+ $months = array(
+ $this->cursorMonth,
+ );
+ }
+
+ if ($is_monthly && $by_setpos) {
+ $months = $this->applySetPos($months, $by_setpos);
+ }
+
+ $this->setMonths = array_reverse($months);
+ }
+
+ $this->stateMonth = array_pop($this->setMonths);
+ }
+
+ protected function nextYear() {
+ $this->stateYear = $this->cursorYear;
+
+ $frequency = $this->getFrequency();
+ $is_yearly = ($frequency === 'YEARLY');
+
+ if ($is_yearly) {
+ $interval = $this->getInterval();
+ } else {
+ $interval = 1;
+ }
+
+ $this->cursorYear = $this->cursorYear + $interval;
+ }
+
+ private function newSecondsSet($interval, $set) {
+ // TODO: This doesn't account for leap sections. In theory, it probably
+ // should, although this shouldn't impact any real events.
+ $seconds_in_minute = 60;
+
+ if ($this->cursorSecond >= $seconds_in_minute) {
+ $this->cursorSecond -= $seconds_in_minute;
+ return array();
+ }
+
+ list($cursor, $result) = $this->newIteratorSet(
+ $this->cursorSecond,
+ $interval,
+ $set,
+ $seconds_in_minute);
+
+ $this->cursorSecond = ($cursor - $seconds_in_minute);
+
+ return $result;
+ }
+
+ private function newMinutesSet($interval, $set) {
+ // NOTE: This value is legitimately a constant! Amazing!
+ $minutes_in_hour = 60;
+
+ if ($this->cursorMinute >= $minutes_in_hour) {
+ $this->cursorMinute -= $minutes_in_hour;
+ return array();
+ }
+
+ list($cursor, $result) = $this->newIteratorSet(
+ $this->cursorMinute,
+ $interval,
+ $set,
+ $minutes_in_hour);
+
+ $this->cursorMinute = ($cursor - $minutes_in_hour);
+
+ return $result;
+ }
+
+ private function newHoursSet($interval, $set) {
+ // TODO: This doesn't account for hours caused by daylight savings time.
+ // It probably should, although this seems unlikely to impact any real
+ // events.
+ $hours_in_day = 24;
+
+ if ($this->cursorHour >= $hours_in_day) {
+ $this->cursorHour -= $hours_in_day;
+ return array();
+ }
+
+ list($cursor, $result) = $this->newIteratorSet(
+ $this->cursorHour,
+ $interval,
+ $set,
+ $hours_in_day);
+
+ $this->cursorHour = ($cursor - $hours_in_day);
+
+ return $result;
+ }
+
+ private function newDaysSet(
+ $interval_day,
+ $interval_week,
+ $by_day,
+ $by_monthday,
+ $by_yearday,
+ $by_weekno,
+ $week_start) {
+
+ $year_map = $this->getYearMap($this->cursorYear, $week_start);
+
+ $selection = array();
+ if ($interval_week) {
+ while (true) {
+ // TODO: This is all garbage?
+ if ($this->cursorWeek > $year_map['weekCount']) {
+ $this->cursorWeek -= $year_map['weekCount'];
+ break;
+ }
+
+ foreach ($year_map['weeks'][$this->cursorWeek] as $key) {
+ $selection[] = $year_map['info'][$key];
+ }
+
+ $last = last($selection);
+ if ($last['month'] > $this->cursorMonth) {
+ break;
+ }
+
+ $this->cursorWeek += $interval_week;
+ }
+ } else {
+ $calendar = $year_map['calendar'];
+ $month_idx = $this->cursorMonth;
+
+ if (!$interval_day) {
+ $interval_day = 1;
+ }
+
+ while (true) {
+ $month_days = $year_map['monthDays'][$month_idx];
+ if ($this->cursorDay > $month_days) {
+ $this->cursorDay -= $month_days;
+ break;
+ }
+
+ $day_idx = $this->cursorDay;
+
+ $key = $calendar[$month_idx][$day_idx]['key'];
+ $selection[] = $year_map['info'][$key];
+
+ $this->cursorDay += $interval_day;
+ }
+ }
+
+ if ($by_day) {
+ $by_day = array_fuse($by_day);
+ }
+
+ if ($by_monthday) {
+ $by_monthday = array_fuse($by_monthday);
+ }
+
+ if ($by_yearday) {
+ $by_yearday = array_fuse($by_yearday);
+ }
+
+ if ($by_weekno) {
+ $by_weekno = array_fuse($by_weekno);
+ }
+
+ $weeks = array();
+ foreach ($selection as $key => $info) {
+ if ($info['month'] != $this->cursorMonth) {
+ continue;
+ }
+
+ if ($by_day) {
+ // TODO: Implement weekday stuff.
+ }
+
+ if ($by_monthday) {
+ if (empty($by_monthday[$info['monthday']]) &&
+ empty($by_monthday[$info['-monthday']])) {
+ continue;
+ }
+ }
+
+ if ($by_yearday) {
+ if (empty($by_monthday[$info['yearday']]) &&
+ empty($by_monthday[$info['-yearday']])) {
+ continue;
+ }
+ }
+
+ if ($by_weekno) {
+ // TODO: Implement week number stuff.
+ }
+
+ $weeks[$info['week']][] = $info['monthday'];
+ }
+
+ return array_values($weeks);
+ }
+
+ private function newMonthsSet($interval, $set) {
+ // NOTE: This value is also a real constant! Wow!
+ $months_in_year = 12;
+
+ if ($this->cursorMonth > $months_in_year) {
+ $this->cursorMonth - $months_in_year;
+ return array();
+ }
+
+ list($cursor, $result) = $this->newIteratorSet(
+ $this->cursorMonth,
+ $interval,
+ $set,
+ $months_in_year + 1);
+
+ $this->cursorMonth = ($cursor - $months_in_year);
+
+ return $result;
+ }
+
+ private function getYearMap($year, $week_start) {
+ $key = "{$year}/{$week_start}";
+ if (isset($this->maps[$key])) {
+ return $this->maps[$key];
+ }
+
+ $map = self::newYearMap($year, $week_start);
+ $this->maps[$key] = $map;
+
+ return $this->maps[$key];
+ }
+
+ public static function newYearMap($year, $week_start) {
+ $is_leap = (($year % 4 === 0) && ($year % 100 !== 0)) ||
+ ($year % 400 === 0);
+
+ // There may be some clever way to figure out which day of the week a given
+ // year starts on and avoid the cost of a DateTime construction, but I
+ // wasn't able to turn it up and we only need to do this once per year.
+ $datetime = new DateTime("{$year}-01-01", new DateTimeZone('UTC'));
+ $weekday = $datetime->format('w');
+
+ // TODO: Week 1 must contain at least 4 days!
+
+ if ($is_leap) {
+ $max_day = 366;
+ } else {
+ $max_day = 365;
+ }
+
+ $month_days = array(
+ 1 => 31,
+ 2 => $is_leap ? 29 : 28,
+ 3 => 31,
+ 4 => 30,
+ 5 => 31,
+ 6 => 30,
+ 7 => 31,
+ 8 => 31,
+ 9 => 30,
+ 10 => 31,
+ 11 => 30,
+ 12 => 31,
+ );
+
+ $info_map = array();
+ $calendar_map = array();
+ $week_map = array();
+ $yearday_map = array();
+
+ $month_number = 1;
+ $month_day = 1;
+ $week_number = 1;
+ for ($year_day = 1; $year_day <= $max_day; $year_day++) {
+ $key = $month_number.'/'.$month_day;
+
+ $info = array(
+ 'key' => $key,
+ 'month' => $month_number,
+ 'monthday' => $month_day,
+ '-monthday' => -$month_days[$month_number] + $month_day - 1,
+ 'yearday' => $year_day,
+ '-yearday' => -$max_day + $year_day - 1,
+ 'week' => $week_number,
+ );
+
+ $info_map[$key] = $info;
+ $calendar_map[$month_number][$month_day] = $info;
+ $week_map[$week_number][] = $info;
+ $yearday_map[$year_day] = $info;
+
+ $weekday = ($weekday + 1) % 7;
+ if ($weekday === $week_start) {
+ $week_number++;
+ }
+
+ $month_day = ($month_day + 1);
+ if ($month_day > $month_days[$month_number]) {
+ $month_day = 1;
+ $month_number++;
+ }
+ }
+
+ return array(
+ 'info' => $info_map,
+ 'calendar' => $calendar_map,
+ 'weeks' => $week_map,
+ 'yeardays' => $yearday_map,
+ 'weekCount' => $week_number,
+ 'dayCount' => $max_day,
+ 'monthDays' => $month_days,
+ );
+ }
+
+ private function newIteratorSet($cursor, $interval, $set, $limit) {
+ if ($interval < 1) {
+ throw new Exception(
+ pht(
+ 'Invalid iteration interval ("%d"), must be at least 1.',
+ $interval));
+ }
+
+ if ($set) {
+ $set = array_fuse($set);
+ } else {
+ $set = array();
+ }
+
+ $result = array();
+ $seen = array();
+
+ $ii = $cursor;
+ while (true) {
+ if (!$set || isset($set[$ii])) {
+ $result[] = $ii;
+ }
+
+ $ii = ($ii + $interval);
+
+ if ($ii >= $limit) {
+ break;
+ }
+ }
+
+ sort($result);
+ $result = array_values($result);
+
+ return array($ii, $result);
+ }
+
+ private function applySetPos(array $values, array $setpos) {
+ $select = array();
+
+ $count = count($values);
+ foreach ($setpos as $pos) {
+ if ($pos > 0 && $pos <= $count) {
+ $select[] = ($pos - 1);
+ } else if ($pos < 0 && $pos >= -$count) {
+ $select[] = ($count + $pos);
+ }
+ }
+
+ sort($select);
+ return array_select_keys($values, $select);
+ }
+
+
}
diff --git a/src/parser/calendar/data/__tests__/PhutilCalendarRecurrenceRuleTestCase.php b/src/parser/calendar/data/__tests__/PhutilCalendarRecurrenceRuleTestCase.php
new file mode 100644
--- /dev/null
+++ b/src/parser/calendar/data/__tests__/PhutilCalendarRecurrenceRuleTestCase.php
@@ -0,0 +1,105 @@
+<?php
+
+final class PhutilCalendarRecurrenceRuleTestCase extends PhutilTestCase {
+
+ public function testSimpleRecurrenceRules() {
+ $start = PhutilCalendarAbsoluteDateTime::newFromISO8601('20160101T120000Z');
+
+ $rrule = id(new PhutilCalendarRecurrenceRule())
+ ->setStartDateTime($start)
+ ->setFrequency('DAILY');
+
+ $set = id(new PhutilCalendarRecurrenceSet())
+ ->addSource($rrule);
+
+ $result = $set->getEventsBetween(null, null, 3);
+
+ $expect = array(
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160101T120000Z'),
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160102T120000Z'),
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160103T120000Z'),
+ );
+
+ $this->assertEqual(
+ mpull($expect, 'getISO8601'),
+ mpull($result, 'getISO8601'),
+ pht('Simple daily event.'));
+
+
+
+ $rrule = id(new PhutilCalendarRecurrenceRule())
+ ->setStartDateTime($start)
+ ->setFrequency('HOURLY')
+ ->setByHour(array(12, 13));
+
+ $set = id(new PhutilCalendarRecurrenceSet())
+ ->addSource($rrule);
+
+ $result = $set->getEventsBetween(null, null, 5);
+
+ $expect = array(
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160101T120000Z'),
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160101T130000Z'),
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160102T120000Z'),
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160102T130000Z'),
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160103T120000Z'),
+ );
+
+ $this->assertEqual(
+ mpull($expect, 'getISO8601'),
+ mpull($result, 'getISO8601'),
+ pht('Hourly event with BYHOUR.'));
+
+
+ $rrule = id(new PhutilCalendarRecurrenceRule())
+ ->setStartDateTime($start)
+ ->setFrequency('YEARLY');
+
+ $set = id(new PhutilCalendarRecurrenceSet())
+ ->addSource($rrule);
+
+ $result = $set->getEventsBetween(null, null, 2);
+
+ $expect = array(
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160101T120000Z'),
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20170101T120000Z'),
+ );
+
+ $this->assertEqual(
+ mpull($expect, 'getISO8601'),
+ mpull($result, 'getISO8601'),
+ pht('Yearly event.'));
+
+
+ // This is an efficiency test for bizarre rules: it defines a secondly
+ // event which only occurs one a year, and generates 3 instances of it.
+ // This implementation should be fast enough that this test doesn't take
+ // a significant amount of time.
+
+ $rrule = id(new PhutilCalendarRecurrenceRule())
+ ->setStartDateTime($start)
+ ->setFrequency('SECONDLY')
+ ->setByMonth(array(1))
+ ->setByMonthDay(array(1))
+ ->setByHour(array(12))
+ ->setByMinute(array(0))
+ ->setBySecond(array(0));
+
+ $set = id(new PhutilCalendarRecurrenceSet())
+ ->addSource($rrule);
+
+ $result = $set->getEventsBetween(null, null, 3);
+
+ $expect = array(
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20160101T120000Z'),
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20170101T120000Z'),
+ PhutilCalendarAbsoluteDateTime::newFromISO8601('20180101T120000Z'),
+ );
+
+ $this->assertEqual(
+ mpull($expect, 'getISO8601'),
+ mpull($result, 'getISO8601'),
+ pht('Secondly event with many constraints.'));
+ }
+
+}

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