X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=dav%2FSabreDAV%2Ftests%2FSabre%2FVObject%2FRecurrenceIteratorTest.php;fp=dav%2FSabreDAV%2Ftests%2FSabre%2FVObject%2FRecurrenceIteratorTest.php;h=d1ef2da6048efd7ce7b8f6e9d43fbc8d9352dce3;hb=7115197a33ad9141c749a83c454a2f85d9c1290a;hp=0000000000000000000000000000000000000000;hpb=45cc9885fca461335b3e6a10ee46a019c6f75b77;p=friendica-addons.git

diff --git a/dav/SabreDAV/tests/Sabre/VObject/RecurrenceIteratorTest.php b/dav/SabreDAV/tests/Sabre/VObject/RecurrenceIteratorTest.php
new file mode 100644
index 00000000..d1ef2da6
--- /dev/null
+++ b/dav/SabreDAV/tests/Sabre/VObject/RecurrenceIteratorTest.php
@@ -0,0 +1,1087 @@
+<?php
+
+class Sabre_VObject_RecurrenceIteratorTest extends PHPUnit_Framework_TestCase {
+
+    function testValues() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;BYHOUR=10;BYMINUTE=5;BYSECOND=16;BYWEEKNO=32;BYYEARDAY=100,200';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals(array(10), $it->byHour);
+        $this->assertEquals(array(5), $it->byMinute);
+        $this->assertEquals(array(16), $it->bySecond);
+        $this->assertEquals(array(32), $it->byWeekNo);
+        $this->assertEquals(array(100,200), $it->byYearDay);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     * @depends testValues
+     */
+    function testInvalidFreq() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->RRULE = 'FREQ=SMONTHLY;INTERVAL=3;UNTIL=20111025T000000Z';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testVCalendarNoUID() {
+
+        $vcal = new Sabre_VObject_Component('VCALENDAR');
+        $it = new Sabre_VObject_RecurrenceIterator($vcal);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testVCalendarInvalidUID() {
+
+        $vcal = new Sabre_VObject_Component('VCALENDAR');
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,'foo');
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testDaily() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;INTERVAL=3;UNTIL=20111025T000000Z';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,$ev->uid);
+
+        $this->assertEquals('daily', $it->frequency);
+        $this->assertEquals(3, $it->interval);
+        $this->assertEquals(new DateTime('2011-10-25', new DateTimeZone('UTC')), $it->until);
+
+        // Max is to prevent overflow
+        $max = 12;
+        $result = array();
+        foreach($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-10-07', $tz),
+                new DateTime('2011-10-10', $tz),
+                new DateTime('2011-10-13', $tz),
+                new DateTime('2011-10-16', $tz),
+                new DateTime('2011-10-19', $tz),
+                new DateTime('2011-10-22', $tz),
+                new DateTime('2011-10-25', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testNoRRULE() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,$ev->uid);
+
+        $this->assertEquals('daily', $it->frequency);
+        $this->assertEquals(1, $it->interval);
+
+        // Max is to prevent overflow
+        $max = 12;
+        $result = array();
+        foreach($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-10-07', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testDailyByDay() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;INTERVAL=2;BYDAY=TU,WE,FR';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('daily', $it->frequency);
+        $this->assertEquals(2, $it->interval);
+        $this->assertEquals(array('TU','WE','FR'), $it->byDay);
+
+        // Grabbing the next 12 items
+        $max = 12;
+        $result = array();
+        foreach($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-10-07', $tz),
+                new DateTime('2011-10-11', $tz),
+                new DateTime('2011-10-19', $tz),
+                new DateTime('2011-10-21', $tz),
+                new DateTime('2011-10-25', $tz),
+                new DateTime('2011-11-02', $tz),
+                new DateTime('2011-11-04', $tz),
+                new DateTime('2011-11-08', $tz),
+                new DateTime('2011-11-16', $tz),
+                new DateTime('2011-11-18', $tz),
+                new DateTime('2011-11-22', $tz),
+                new DateTime('2011-11-30', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testWeekly() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;COUNT=10';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('weekly', $it->frequency);
+        $this->assertEquals(2, $it->interval);
+        $this->assertEquals(10, $it->count);
+
+        // Max is to prevent overflow
+        $max = 12;
+        $result = array();
+        foreach($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-10-07', $tz),
+                new DateTime('2011-10-21', $tz),
+                new DateTime('2011-11-04', $tz),
+                new DateTime('2011-11-18', $tz),
+                new DateTime('2011-12-02', $tz),
+                new DateTime('2011-12-16', $tz),
+                new DateTime('2011-12-30', $tz),
+                new DateTime('2012-01-13', $tz),
+                new DateTime('2012-01-27', $tz),
+                new DateTime('2012-02-10', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testWeeklyByDay() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=SU';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('weekly', $it->frequency);
+        $this->assertEquals(2, $it->interval);
+        $this->assertEquals(array('TU','WE','FR'), $it->byDay);
+        $this->assertEquals('SU', $it->weekStart);
+
+        // Grabbing the next 12 items
+        $max = 12;
+        $result = array();
+        foreach($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-10-07', $tz),
+                new DateTime('2011-10-18', $tz),
+                new DateTime('2011-10-19', $tz),
+                new DateTime('2011-10-21', $tz),
+                new DateTime('2011-11-01', $tz),
+                new DateTime('2011-11-02', $tz),
+                new DateTime('2011-11-04', $tz),
+                new DateTime('2011-11-15', $tz),
+                new DateTime('2011-11-16', $tz),
+                new DateTime('2011-11-18', $tz),
+                new DateTime('2011-11-29', $tz),
+                new DateTime('2011-11-30', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthly() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=3;COUNT=5';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-12-05'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('monthly', $it->frequency);
+        $this->assertEquals(3, $it->interval);
+        $this->assertEquals(5, $it->count);
+
+        $max = 14;
+        $result = array();
+        foreach($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-12-05', $tz),
+                new DateTime('2012-03-05', $tz),
+                new DateTime('2012-06-05', $tz),
+                new DateTime('2012-09-05', $tz),
+                new DateTime('2012-12-05', $tz),
+            ),
+            $result
+        );
+
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthlyEndOfMonth() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=2;COUNT=12';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-12-31'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('monthly', $it->frequency);
+        $this->assertEquals(2, $it->interval);
+        $this->assertEquals(12, $it->count);
+
+        $max = 14;
+        $result = array();
+        foreach($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-12-31', $tz),
+                new DateTime('2012-08-31', $tz),
+                new DateTime('2012-10-31', $tz),
+                new DateTime('2012-12-31', $tz),
+                new DateTime('2013-08-31', $tz),
+                new DateTime('2013-10-31', $tz),
+                new DateTime('2013-12-31', $tz),
+                new DateTime('2014-08-31', $tz),
+                new DateTime('2014-10-31', $tz),
+                new DateTime('2014-12-31', $tz),
+                new DateTime('2015-08-31', $tz),
+                new DateTime('2015-10-31', $tz),
+            ),
+            $result
+        );
+
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthlyByMonthDay() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=5;COUNT=9;BYMONTHDAY=1,31,-7';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-01-01'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('monthly', $it->frequency);
+        $this->assertEquals(5, $it->interval);
+        $this->assertEquals(9, $it->count);
+        $this->assertEquals(array(1, 31, -7), $it->byMonthDay);
+
+        $max = 14;
+        $result = array();
+        foreach($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-01-01', $tz),
+                new DateTime('2011-01-25', $tz),
+                new DateTime('2011-01-31', $tz),
+                new DateTime('2011-06-01', $tz),
+                new DateTime('2011-06-24', $tz),
+                new DateTime('2011-11-01', $tz),
+                new DateTime('2011-11-24', $tz),
+                new DateTime('2012-04-01', $tz),
+                new DateTime('2012-04-24', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthlyByDay() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=2;COUNT=16;BYDAY=MO,-2TU,+1WE,3TH';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-01-03'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('monthly', $it->frequency);
+        $this->assertEquals(2, $it->interval);
+        $this->assertEquals(16, $it->count);
+        $this->assertEquals(array('MO','-2TU','+1WE','3TH'), $it->byDay);
+
+        $max = 20;
+        $result = array();
+        foreach($it as $k=>$item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-01-03', $tz),
+                new DateTime('2011-01-05', $tz),
+                new DateTime('2011-01-10', $tz),
+                new DateTime('2011-01-17', $tz),
+                new DateTime('2011-01-18', $tz),
+                new DateTime('2011-01-20', $tz),
+                new DateTime('2011-01-24', $tz),
+                new DateTime('2011-01-31', $tz),
+                new DateTime('2011-03-02', $tz),
+                new DateTime('2011-03-07', $tz),
+                new DateTime('2011-03-14', $tz),
+                new DateTime('2011-03-17', $tz),
+                new DateTime('2011-03-21', $tz),
+                new DateTime('2011-03-22', $tz),
+                new DateTime('2011-03-28', $tz),
+                new DateTime('2011-05-02', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthlyByDayByMonthDay() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;COUNT=10;BYDAY=MO;BYMONTHDAY=1';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-08-01'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('monthly', $it->frequency);
+        $this->assertEquals(1, $it->interval);
+        $this->assertEquals(10, $it->count);
+        $this->assertEquals(array('MO'), $it->byDay);
+        $this->assertEquals(array(1), $it->byMonthDay);
+
+        $max = 20;
+        $result = array();
+        foreach($it as $k=>$item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-08-01', $tz),
+                new DateTime('2012-10-01', $tz),
+                new DateTime('2013-04-01', $tz),
+                new DateTime('2013-07-01', $tz),
+                new DateTime('2014-09-01', $tz),
+                new DateTime('2014-12-01', $tz),
+                new DateTime('2015-06-01', $tz),
+                new DateTime('2016-02-01', $tz),
+                new DateTime('2016-08-01', $tz),
+                new DateTime('2017-05-01', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthlyByDayBySetPos() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;COUNT=10;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=1,-1';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-01-03'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('monthly', $it->frequency);
+        $this->assertEquals(1, $it->interval);
+        $this->assertEquals(10, $it->count);
+        $this->assertEquals(array('MO','TU','WE','TH','FR'), $it->byDay);
+        $this->assertEquals(array(1,-1), $it->bySetPos);
+
+        $max = 20;
+        $result = array();
+        foreach($it as $k=>$item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-01-03', $tz),
+                new DateTime('2011-01-31', $tz),
+                new DateTime('2011-02-01', $tz),
+                new DateTime('2011-02-28', $tz),
+                new DateTime('2011-03-01', $tz),
+                new DateTime('2011-03-31', $tz),
+                new DateTime('2011-04-01', $tz),
+                new DateTime('2011-04-29', $tz),
+                new DateTime('2011-05-02', $tz),
+                new DateTime('2011-05-31', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testYearly() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=10;INTERVAL=3';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-01-01'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('yearly', $it->frequency);
+        $this->assertEquals(3, $it->interval);
+        $this->assertEquals(10, $it->count);
+
+        $max = 20;
+        $result = array();
+        foreach($it as $k=>$item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-01-01', $tz),
+                new DateTime('2014-01-01', $tz),
+                new DateTime('2017-01-01', $tz),
+                new DateTime('2020-01-01', $tz),
+                new DateTime('2023-01-01', $tz),
+                new DateTime('2026-01-01', $tz),
+                new DateTime('2029-01-01', $tz),
+                new DateTime('2032-01-01', $tz),
+                new DateTime('2035-01-01', $tz),
+                new DateTime('2038-01-01', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testYearlyByMonth() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=8;INTERVAL=4;BYMONTH=4,10';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-04-07'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('yearly', $it->frequency);
+        $this->assertEquals(4, $it->interval);
+        $this->assertEquals(8, $it->count);
+        $this->assertEquals(array(4,10), $it->byMonth);
+
+        $max = 20;
+        $result = array();
+        foreach($it as $k=>$item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-04-07', $tz),
+                new DateTime('2011-10-07', $tz),
+                new DateTime('2015-04-07', $tz),
+                new DateTime('2015-10-07', $tz),
+                new DateTime('2019-04-07', $tz),
+                new DateTime('2019-10-07', $tz),
+                new DateTime('2023-04-07', $tz),
+                new DateTime('2023-10-07', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testYearlyByMonthByDay() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=8;INTERVAL=5;BYMONTH=4,10;BYDAY=1MO,-1SU';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-04-04'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('yearly', $it->frequency);
+        $this->assertEquals(5, $it->interval);
+        $this->assertEquals(8, $it->count);
+        $this->assertEquals(array(4,10), $it->byMonth);
+        $this->assertEquals(array('1MO','-1SU'), $it->byDay);
+
+        $max = 20;
+        $result = array();
+        foreach($it as $k=>$item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-04-04', $tz),
+                new DateTime('2011-04-24', $tz),
+                new DateTime('2011-10-03', $tz),
+                new DateTime('2011-10-30', $tz),
+                new DateTime('2016-04-04', $tz),
+                new DateTime('2016-04-24', $tz),
+                new DateTime('2016-10-03', $tz),
+                new DateTime('2016-10-30', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testFastForward() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=8;INTERVAL=5;BYMONTH=4,10;BYDAY=1MO,-1SU';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-04-04'),Sabre_VObject_Property_DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        // The idea is that we're fast-forwarding too far in the future, so
+        // there will be no results left.
+        $it->fastForward(new DateTime('2020-05-05'));
+
+        $max = 20;
+        $result = array();
+        while($item = $it->current()) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+            $it->next();
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+        $this->assertEquals(array(), $result);
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testComplexExclusions() {
+
+        $ev = new Sabre_VObject_Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=10';
+        $dtStart = new Sabre_VObject_Property_DateTime('DTSTART');
+
+        $tz = new DateTimeZone('Canada/Eastern');
+        $dtStart->setDateTime(new DateTime('2011-01-01 13:50:20', $tz),Sabre_VObject_Property_DateTime::LOCALTZ);
+
+        $exDate1 = new Sabre_VObject_Property_MultiDateTime('EXDATE');
+        $exDate1->setDateTimes(array(new DateTime('2012-01-01 13:50:20', $tz), new DateTime('2014-01-01 13:50:20', $tz)), Sabre_VObject_Property_DateTime::LOCALTZ);
+        $exDate2 = new Sabre_VObject_Property_MultiDateTime('EXDATE');
+        $exDate2->setDateTimes(array(new DateTime('2016-01-01 13:50:20', $tz)), Sabre_VObject_Property_DateTime::LOCALTZ);
+
+        $ev->add($dtStart);
+        $ev->add($exDate1);
+        $ev->add($exDate2);
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('yearly', $it->frequency);
+        $this->assertEquals(1, $it->interval);
+        $this->assertEquals(10, $it->count);
+
+        $max = 20;
+        $result = array();
+        foreach($it as $k=>$item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-01-01 13:50:20', $tz),
+                new DateTime('2013-01-01 13:50:20', $tz),
+                new DateTime('2015-01-01 13:50:20', $tz),
+                new DateTime('2017-01-01 13:50:20', $tz),
+                new DateTime('2018-01-01 13:50:20', $tz),
+                new DateTime('2019-01-01 13:50:20', $tz),
+                new DateTime('2020-01-01 13:50:20', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testOverridenEvent() {
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+
+        $ev1 = Sabre_VObject_Component::create('VEVENT');
+        $ev1->UID = 'overridden';
+        $ev1->RRULE = 'FREQ=DAILY;COUNT=10';
+        $ev1->DTSTART = '20120107T120000Z';
+        $ev1->SUMMARY = 'baseEvent';
+
+        $vcal->add($ev1);
+
+        // ev2 overrides an event, and puts it on 2pm instead.
+        $ev2 = Sabre_VObject_Component::create('VEVENT');
+        $ev2->UID = 'overridden';
+        $ev2->{'RECURRENCE-ID'} = '20120110T120000Z';
+        $ev2->DTSTART = '20120110T140000Z';
+        $ev2->SUMMARY = 'Event 2';
+
+        $vcal->add($ev2);
+
+        // ev3 overrides an event, and puts it 2 days and 2 hours later 
+        $ev3 = Sabre_VObject_Component::create('VEVENT');
+        $ev3->UID = 'overridden';
+        $ev3->{'RECURRENCE-ID'} = '20120113T120000Z';
+        $ev3->DTSTART = '20120115T140000Z';
+        $ev3->SUMMARY = 'Event 3';
+
+        $vcal->add($ev3);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,'overridden');
+
+        $dates = array();
+        $summaries = array();
+        while($it->valid()) {
+
+            $dates[] = $it->getDTStart();
+            $summaries[] = (string)$it->getEventObject()->SUMMARY;
+            $it->next();
+
+        }
+
+        $tz = new DateTimeZone('GMT');
+        $this->assertEquals(array(
+            new DateTime('2012-01-07 12:00:00',$tz),
+            new DateTime('2012-01-08 12:00:00',$tz),
+            new DateTime('2012-01-09 12:00:00',$tz),
+            new DateTime('2012-01-10 14:00:00',$tz),
+            new DateTime('2012-01-11 12:00:00',$tz),
+            new DateTime('2012-01-12 12:00:00',$tz),
+            new DateTime('2012-01-14 12:00:00',$tz),
+            new DateTime('2012-01-15 12:00:00',$tz),
+            new DateTime('2012-01-15 14:00:00',$tz),
+            new DateTime('2012-01-16 12:00:00',$tz),
+        ), $dates);
+
+        $this->assertEquals(array(
+            'baseEvent',
+            'baseEvent',
+            'baseEvent',
+            'Event 2',
+            'baseEvent',
+            'baseEvent',
+            'baseEvent',
+            'baseEvent',
+            'Event 3',
+            'baseEvent',
+        ), $summaries);
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testOverridenEvent2() {
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+
+        $ev1 = Sabre_VObject_Component::create('VEVENT');
+        $ev1->UID = 'overridden';
+        $ev1->RRULE = 'FREQ=WEEKLY;COUNT=3';
+        $ev1->DTSTART = '20120112T120000Z';
+        $ev1->SUMMARY = 'baseEvent';
+
+        $vcal->add($ev1);
+
+        // ev2 overrides an event, and puts it 6 days earlier instead.
+        $ev2 = Sabre_VObject_Component::create('VEVENT');
+        $ev2->UID = 'overridden';
+        $ev2->{'RECURRENCE-ID'} = '20120119T120000Z';
+        $ev2->DTSTART = '20120113T120000Z';
+        $ev2->SUMMARY = 'Override!';
+
+        $vcal->add($ev2);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,'overridden');
+
+        $dates = array();
+        $summaries = array();
+        while($it->valid()) {
+
+            $dates[] = $it->getDTStart();
+            $summaries[] = (string)$it->getEventObject()->SUMMARY;
+            $it->next();
+
+        }
+
+        $tz = new DateTimeZone('GMT');
+        $this->assertEquals(array(
+            new DateTime('2012-01-12 12:00:00',$tz),
+            new DateTime('2012-01-13 12:00:00',$tz),
+            new DateTime('2012-01-26 12:00:00',$tz),
+
+        ), $dates);
+
+        $this->assertEquals(array(
+            'baseEvent',
+            'Override!',
+            'baseEvent',
+        ), $summaries);
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testOverridenEventNoValuesExpected() {
+
+        $vcal = Sabre_VObject_Component::create('VCALENDAR');
+
+        $ev1 = Sabre_VObject_Component::create('VEVENT');
+        $ev1->UID = 'overridden';
+        $ev1->RRULE = 'FREQ=WEEKLY;COUNT=3';
+        $ev1->DTSTART = '20120124T120000Z';
+        $ev1->SUMMARY = 'baseEvent';
+
+        $vcal->add($ev1);
+
+        // ev2 overrides an event, and puts it 6 days earlier instead.
+        $ev2 = Sabre_VObject_Component::create('VEVENT');
+        $ev2->UID = 'overridden';
+        $ev2->{'RECURRENCE-ID'} = '20120131T120000Z';
+        $ev2->DTSTART = '20120125T120000Z';
+        $ev2->SUMMARY = 'Override!';
+
+        $vcal->add($ev2);
+
+        $it = new Sabre_VObject_RecurrenceIterator($vcal,'overridden');
+
+        $dates = array();
+        $summaries = array();
+
+        // The reported problem was specifically related to the VCALENDAR 
+        // expansion. In this parcitular case, we had to forward to the 28th of 
+        // january.
+        $it->fastForward(new DateTime('2012-01-28 23:00:00'));
+
+        // We stop the loop when it hits the 6th of februari. Normally this 
+        // iterator would hit 24, 25 (overriden from 31) and 7 feb but because 
+        // we 'filter' from the 28th till the 6th, we should get 0 results.
+        while($it->valid() && $it->getDTSTart() < new DateTime('2012-02-06 23:00:00')) {
+
+            $dates[] = $it->getDTStart();
+            $summaries[] = (string)$it->getEventObject()->SUMMARY;
+            $it->next();
+
+        }
+
+        $this->assertEquals(array(), $dates);
+        $this->assertEquals(array(), $summaries);
+
+    }
+}
+