Merge pull request #3 from friendica/master

Align to main project HEAD

36 files changed, 6005 insertions, 0 deletions

diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Component/VAlarmTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VAlarmTest.php
new file mode 100644
index 000000000..d57be7aa5
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VAlarmTest.php
@@ -0,0 +1,175 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject\Component;
+use DateTime;
+use Sabre\VObject\Reader;
+
+class VAlarmTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @dataProvider timeRangeTestData
+     */
+    public function testInTimeRange(VAlarm $valarm,$start,$end,$outcome) {
+
+        $this->assertEquals($outcome, $valarm->isInTimeRange($start, $end));
+
+    }
+
+    public function timeRangeTestData() {
+
+        $tests = array();
+
+        // Hard date and time        
+        $valarm1 = Component::create('VALARM');
+        $valarm1->TRIGGER = '20120312T130000Z';
+        $valarm1->TRIGGER['VALUE'] = 'DATE-TIME';
+
+        $tests[] = array($valarm1, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-04-01 01:00:00'), true);
+        $tests[] = array($valarm1, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-03-10 01:00:00'), false);
+
+        // Relation to start time of event
+        $valarm2 = Component::create('VALARM');
+        $valarm2->TRIGGER = '-P1D';
+        $valarm2->TRIGGER['VALUE'] = 'DURATION';
+
+        $vevent2 = Component::create('VEVENT');
+        $vevent2->DTSTART = '20120313T130000Z';
+        $vevent2->add($valarm2);
+
+        $tests[] = array($valarm2, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-04-01 01:00:00'), true);
+        $tests[] = array($valarm2, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-03-10 01:00:00'), false);
+
+        // Relation to end time of event
+        $valarm3 = Component::create('VALARM');
+        $valarm3->TRIGGER = '-P1D';
+        $valarm3->TRIGGER['VALUE'] = 'DURATION';
+        $valarm3->TRIGGER['RELATED']= 'END';
+
+        $vevent3 = Component::create('VEVENT');
+        $vevent3->DTSTART = '20120301T130000Z';
+        $vevent3->DTEND = '20120401T130000Z';
+        $vevent3->add($valarm3);
+
+        $tests[] = array($valarm3, new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'), false);
+        $tests[] = array($valarm3, new DateTime('2012-03-25 01:00:00'), new DateTime('2012-04-05 01:00:00'), true);
+
+        // Relation to end time of todo 
+        $valarm4 = Component::create('VALARM');
+        $valarm4->TRIGGER = '-P1D';
+        $valarm4->TRIGGER['VALUE'] = 'DURATION';
+        $valarm4->TRIGGER['RELATED']= 'END';
+
+        $vtodo4 = Component::create('VTODO');
+        $vtodo4->DTSTART = '20120301T130000Z';
+        $vtodo4->DUE = '20120401T130000Z';
+        $vtodo4->add($valarm4);
+
+        $tests[] = array($valarm4, new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'), false);
+        $tests[] = array($valarm4, new DateTime('2012-03-25 01:00:00'), new DateTime('2012-04-05 01:00:00'), true);
+
+        // Relation to start time of event + repeat
+        $valarm5 = Component::create('VALARM');
+        $valarm5->TRIGGER = '-P1D';
+        $valarm5->TRIGGER['VALUE'] = 'DURATION';
+        $valarm5->REPEAT = 10;
+        $valarm5->DURATION = 'P1D';
+
+        $vevent5 = Component::create('VEVENT');
+        $vevent5->DTSTART = '20120301T130000Z';
+        $vevent5->add($valarm5);
+
+        $tests[] = array($valarm5, new DateTime('2012-03-09 01:00:00'), new DateTime('2012-03-10 01:00:00'), true);
+
+        // Relation to start time of event + duration, but no repeat
+        $valarm6 = Component::create('VALARM');
+        $valarm6->TRIGGER = '-P1D';
+        $valarm6->TRIGGER['VALUE'] = 'DURATION';
+        $valarm6->DURATION = 'P1D';
+
+        $vevent6 = Component::create('VEVENT');
+        $vevent6->DTSTART = '20120313T130000Z';
+        $vevent6->add($valarm6);
+
+        $tests[] = array($valarm6, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-04-01 01:00:00'), true);
+        $tests[] = array($valarm6, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-03-10 01:00:00'), false);
+
+
+        // Relation to end time of event (DURATION instead of DTEND)
+        $valarm7 = Component::create('VALARM');
+        $valarm7->TRIGGER = '-P1D';
+        $valarm7->TRIGGER['VALUE'] = 'DURATION';
+        $valarm7->TRIGGER['RELATED']= 'END';
+
+        $vevent7 = Component::create('VEVENT');
+        $vevent7->DTSTART = '20120301T130000Z';
+        $vevent7->DURATION = 'P30D';
+        $vevent7->add($valarm7);
+
+        $tests[] = array($valarm7, new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'), false);
+        $tests[] = array($valarm7, new DateTime('2012-03-25 01:00:00'), new DateTime('2012-04-05 01:00:00'), true);
+
+        // Relation to end time of event (No DTEND or DURATION)
+        $valarm7 = Component::create('VALARM');
+        $valarm7->TRIGGER = '-P1D';
+        $valarm7->TRIGGER['VALUE'] = 'DURATION';
+        $valarm7->TRIGGER['RELATED']= 'END';
+
+        $vevent7 = Component::create('VEVENT');
+        $vevent7->DTSTART = '20120301T130000Z';
+        $vevent7->add($valarm7);
+
+        $tests[] = array($valarm7, new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'), true);
+        $tests[] = array($valarm7, new DateTime('2012-03-25 01:00:00'), new DateTime('2012-04-05 01:00:00'), false);
+
+
+        return $tests;
+    }
+
+    /**
+     * @expectedException LogicException
+     */
+    public function testInTimeRangeInvalidComponent() {
+
+        $valarm = Component::create('VALARM');
+        $valarm->TRIGGER = '-P1D';
+        $valarm->TRIGGER['RELATED'] = 'END';
+
+        $vjournal = Component::create('VJOURNAL');
+        $vjournal->add($valarm);
+
+        $valarm->isInTimeRange(new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'));
+
+    }
+
+    /**
+     * This bug was found and reported on the mailing list.
+     */
+    public function testInTimeRangeBuggy() {
+
+$input = <<<BLA
+BEGIN:VCALENDAR
+BEGIN:VTODO
+DTSTAMP:20121003T064931Z
+UID:b848cb9a7bb16e464a06c222ca1f8102@examle.com
+STATUS:NEEDS-ACTION
+DUE:20121005T000000Z
+SUMMARY:Task 1
+CATEGORIES:AlarmCategory
+BEGIN:VALARM
+TRIGGER:-PT10M
+ACTION:DISPLAY
+DESCRIPTION:Task 1
+END:VALARM
+END:VTODO
+END:VCALENDAR
+BLA;
+
+        $vobj = Reader::read($input);
+
+        $this->assertTrue($vobj->VTODO->VALARM->isInTimeRange(new \DateTime('2012-10-01 00:00:00'), new \DateTime('2012-11-01 00:00:00')));
+
+    }
+}
+
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Component/VCalendarTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VCalendarTest.php
new file mode 100644
index 000000000..1d7e0c603
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VCalendarTest.php
@@ -0,0 +1,244 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+class VCalendarTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @dataProvider expandData
+     */
+    public function testExpand($input, $output) {
+
+        $vcal = VObject\Reader::read($input);
+        $vcal->expand(
+            new \DateTime('2011-12-01'),
+            new \DateTime('2011-12-31')
+        );
+
+        // This will normalize the output
+        $output = VObject\Reader::read($output)->serialize();
+
+        $this->assertEquals($output, $vcal->serialize());
+
+    }
+
+    public function expandData() {
+
+        $tests = array();
+
+        // No data
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+END:VCALENDAR
+';
+
+        $output = $input;
+        $tests[] = array($input,$output);
+
+
+        // Simple events
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla
+SUMMARY:InExpand
+DTSTART;VALUE=DATE:20111202
+END:VEVENT
+BEGIN:VEVENT
+UID:bla2
+SUMMARY:NotInExpand
+DTSTART;VALUE=DATE:20120101
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla
+SUMMARY:InExpand
+DTSTART;VALUE=DATE:20111202
+END:VEVENT
+END:VCALENDAR
+';
+
+        $tests[] = array($input, $output);
+
+        // Removing timezone info
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:Europe/Paris
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:bla4
+SUMMARY:RemoveTZ info
+DTSTART;TZID=Europe/Paris:20111203T130102
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla4
+SUMMARY:RemoveTZ info
+DTSTART;VALUE=DATE-TIME:20111203T120102Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $tests[] = array($input, $output);
+
+        // Recurrence rule
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART:20111125T120000Z
+DTEND:20111125T130000Z
+RRULE:FREQ=WEEKLY
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART;VALUE=DATE-TIME:20111202T120000Z
+DTEND;VALUE=DATE-TIME:20111202T130000Z
+RECURRENCE-ID:20111202T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART;VALUE=DATE-TIME:20111209T120000Z
+DTEND;VALUE=DATE-TIME:20111209T130000Z
+RECURRENCE-ID:20111209T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART;VALUE=DATE-TIME:20111216T120000Z
+DTEND;VALUE=DATE-TIME:20111216T130000Z
+RECURRENCE-ID:20111216T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART;VALUE=DATE-TIME:20111223T120000Z
+DTEND;VALUE=DATE-TIME:20111223T130000Z
+RECURRENCE-ID:20111223T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART;VALUE=DATE-TIME:20111230T120000Z
+DTEND;VALUE=DATE-TIME:20111230T130000Z
+RECURRENCE-ID:20111230T120000Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        // Recurrence rule + override
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART:20111125T120000Z
+DTEND:20111125T130000Z
+RRULE:FREQ=WEEKLY
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+RECURRENCE-ID:20111209T120000Z
+DTSTART:20111209T140000Z
+DTEND:20111209T150000Z
+SUMMARY:Override!
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART;VALUE=DATE-TIME:20111202T120000Z
+DTEND;VALUE=DATE-TIME:20111202T130000Z
+RECURRENCE-ID:20111202T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+RECURRENCE-ID:20111209T120000Z
+DTSTART:20111209T140000Z
+DTEND:20111209T150000Z
+SUMMARY:Override!
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART;VALUE=DATE-TIME:20111216T120000Z
+DTEND;VALUE=DATE-TIME:20111216T130000Z
+RECURRENCE-ID:20111216T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART;VALUE=DATE-TIME:20111223T120000Z
+DTEND;VALUE=DATE-TIME:20111223T130000Z
+RECURRENCE-ID:20111223T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART;VALUE=DATE-TIME:20111230T120000Z
+DTEND;VALUE=DATE-TIME:20111230T130000Z
+RECURRENCE-ID:20111230T120000Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $tests[] = array($input, $output);
+        return $tests;
+
+    }
+
+    /**
+     * @expectedException LogicException
+     */
+    public function testBrokenEventExpand() {
+
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+RRULE:FREQ=WEEKLY
+DTSTART;VALUE=DATE:20111202
+END:VEVENT
+END:VCALENDAR
+';
+        $vcal = VObject\Reader::read($input);
+        $vcal->expand(
+            new \DateTime('2011-12-01'),
+            new \DateTime('2011-12-31')
+        );
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Component/VCardTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VCardTest.php
new file mode 100644
index 000000000..584a007d9
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VCardTest.php
@@ -0,0 +1,100 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+class VCardTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @dataProvider validateData
+     */
+    function testValidate($input, $expectedWarnings, $expectedRepairedOutput) {
+
+        $vcard = VObject\Reader::read($input);
+
+        $warnings = $vcard->validate();
+
+        $warnMsg = array();
+        foreach($warnings as $warning) {
+            $warnMsg[] = $warning['message'];
+        }
+
+        $this->assertEquals($expectedWarnings, $warnMsg);
+
+        $vcard->validate(VObject\Component::REPAIR);
+
+        $this->assertEquals(
+            $expectedRepairedOutput,
+            $vcard->serialize()
+        );
+
+    }
+
+    public function validateData() {
+
+        $tests = array();
+
+        // Correct
+        $tests[] = array(
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nFN:John Doe\r\nEND:VCARD\r\n",
+            array(),
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nFN:John Doe\r\nEND:VCARD\r\n",
+        );
+
+        // No VERSION
+        $tests[] = array(
+            "BEGIN:VCARD\r\nFN:John Doe\r\nEND:VCARD\r\n",
+            array(
+                'The VERSION property must appear in the VCARD component exactly 1 time',
+            ),
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nFN:John Doe\r\nEND:VCARD\r\n",
+        );
+
+        // Unknown version
+        $tests[] = array(
+            "BEGIN:VCARD\r\nVERSION:2.2\r\nFN:John Doe\r\nEND:VCARD\r\n",
+            array(
+                'Only vcard version 4.0 (RFC6350), version 3.0 (RFC2426) or version 2.1 (icm-vcard-2.1) are supported.',
+            ),
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nFN:John Doe\r\nEND:VCARD\r\n",
+        );
+
+        // No FN
+        $tests[] = array(
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nEND:VCARD\r\n",
+            array(
+                'The FN property must appear in the VCARD component exactly 1 time',
+            ),
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nEND:VCARD\r\n",
+        );
+        // No FN, N fallback
+        $tests[] = array(
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nN:Doe;John;;;;;\r\nEND:VCARD\r\n",
+            array(
+                'The FN property must appear in the VCARD component exactly 1 time',
+            ),
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nN:Doe;John;;;;;\r\nFN:John Doe\r\nEND:VCARD\r\n",
+        );
+        // No FN, N fallback, no first name
+        $tests[] = array(
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nN:Doe;;;;;;\r\nEND:VCARD\r\n",
+            array(
+                'The FN property must appear in the VCARD component exactly 1 time',
+            ),
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nN:Doe;;;;;;\r\nFN:Doe\r\nEND:VCARD\r\n",
+        );
+
+        // No FN, ORG fallback
+        $tests[] = array(
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nORG:Acme Co.\r\nEND:VCARD\r\n",
+            array(
+                'The FN property must appear in the VCARD component exactly 1 time',
+            ),
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nORG:Acme Co.\r\nFN:Acme Co.\r\nEND:VCARD\r\n",
+        );
+        return $tests;
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Component/VEventTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VEventTest.php
new file mode 100644
index 000000000..616da4ac7
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VEventTest.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+class VEventTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @dataProvider timeRangeTestData
+     */
+    public function testInTimeRange(VEvent $vevent,$start,$end,$outcome) {
+
+        $this->assertEquals($outcome, $vevent->isInTimeRange($start, $end));
+
+    }
+
+    public function timeRangeTestData() {
+
+        $tests = array();
+
+        $vevent = new VEvent('VEVENT');
+        $vevent->DTSTART = '20111223T120000Z';
+        $tests[] = array($vevent, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vevent, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vevent2 = clone $vevent;
+        $vevent2->DTEND = '20111225T120000Z';
+        $tests[] = array($vevent2, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vevent2, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vevent3 = clone $vevent;
+        $vevent3->DURATION = 'P1D';
+        $tests[] = array($vevent3, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vevent3, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vevent4 = clone $vevent;
+        $vevent4->DTSTART = '20111225';
+        $vevent4->DTSTART['VALUE'] = 'DATE';
+        $tests[] = array($vevent4, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vevent4, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+        // Event with no end date should be treated as lasting the entire day.
+        $tests[] = array($vevent4, new \DateTime('2011-12-25 16:00:00'), new \DateTime('2011-12-25 17:00:00'), true);
+
+
+        $vevent5 = clone $vevent;
+        $vevent5->DURATION = 'P1D';
+        $vevent5->RRULE = 'FREQ=YEARLY';
+        $tests[] = array($vevent5, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vevent5, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+        $tests[] = array($vevent5, new \DateTime('2013-12-01'), new \DateTime('2013-12-31'), true);
+
+        $vevent6 = clone $vevent;
+        $vevent6->DTSTART = '20111225';
+        $vevent6->DTSTART['VALUE'] = 'DATE';
+        $vevent6->DTEND   = '20111225';
+        $vevent6->DTEND['VALUE'] = 'DATE';
+
+        $tests[] = array($vevent6, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vevent6, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        // Added this test to ensure that recurrence rules with no DTEND also 
+        // get checked for the entire day.
+        $vevent7 = clone $vevent;
+        $vevent7->DTSTART = '20120101';
+        $vevent7->DTSTART['VALUE'] = 'DATE';
+        $vevent7->RRULE = 'FREQ=MONTHLY';
+        $tests[] = array($vevent7, new \DateTime('2012-02-01 15:00:00'), new \DateTime('2012-02-02'), true);
+        return $tests;
+
+    }
+
+}
+
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Component/VFreeBusyTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VFreeBusyTest.php
new file mode 100644
index 000000000..031c3c684
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VFreeBusyTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\VObject\Component;
+use Sabre\VObject;
+
+class VFreeBusyTest extends \PHPUnit_Framework_TestCase {
+
+    function testIsFree() {
+
+        $input = <<<BLA
+BEGIN:VCALENDAR
+BEGIN:VFREEBUSY
+FREEBUSY;FBTYPE=FREE:20120912T000500Z/PT1H
+FREEBUSY;FBTYPE=BUSY:20120912T010000Z/20120912T020000Z
+FREEBUSY;FBTYPE=BUSY-TENTATIVE:20120912T020000Z/20120912T030000Z
+FREEBUSY;FBTYPE=BUSY-UNAVAILABLE:20120912T030000Z/20120912T040000Z
+FREEBUSY;FBTYPE=BUSY:20120912T050000Z/20120912T060000Z,20120912T080000Z/20120912T090000Z
+FREEBUSY;FBTYPE=BUSY:20120912T100000Z/PT1H
+END:VFREEBUSY
+END:VCALENDAR
+BLA;
+
+        $obj = VObject\Reader::read($input);
+        $vfb = $obj->VFREEBUSY;
+
+        $tz = new \DateTimeZone('UTC');
+
+        $this->assertFalse($vfb->isFree(new \DateTime('2012-09-12 01:15:00', $tz), new \DateTime('2012-09-12 01:45:00', $tz)));
+        $this->assertFalse($vfb->isFree(new \DateTime('2012-09-12 08:05:00', $tz), new \DateTime('2012-09-12 08:10:00', $tz)));
+        $this->assertFalse($vfb->isFree(new \DateTime('2012-09-12 10:15:00', $tz), new \DateTime('2012-09-12 10:45:00', $tz)));
+
+        // Checking whether the end time is treated as non-inclusive
+        $this->assertTrue($vfb->isFree(new \DateTime('2012-09-12 09:00:00', $tz), new \DateTime('2012-09-12 09:15:00', $tz)));
+        $this->assertTrue($vfb->isFree(new \DateTime('2012-09-12 09:45:00', $tz), new \DateTime('2012-09-12 10:00:00', $tz)));
+        $this->assertTrue($vfb->isFree(new \DateTime('2012-09-12 11:00:00', $tz), new \DateTime('2012-09-12 12:00:00', $tz)));
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Component/VJournalTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VJournalTest.php
new file mode 100644
index 000000000..46ecb992b
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VJournalTest.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject\Component;
+
+class VJournalTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @dataProvider timeRangeTestData
+     */
+    public function testInTimeRange(VJournal $vtodo,$start,$end,$outcome) {
+
+        $this->assertEquals($outcome, $vtodo->isInTimeRange($start, $end));
+
+    }
+
+    public function timeRangeTestData() {
+
+        $tests = array();
+
+        $vjournal = Component::create('VJOURNAL');
+        $vjournal->DTSTART = '20111223T120000Z';
+        $tests[] = array($vjournal, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vjournal, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vjournal2 = Component::create('VJOURNAL');
+        $vjournal2->DTSTART = '20111223';
+        $vjournal2->DTSTART['VALUE'] = 'DATE';
+        $tests[] = array($vjournal2, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vjournal2, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vjournal3 = Component::create('VJOURNAL');
+        $tests[] = array($vjournal3, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), false);
+        $tests[] = array($vjournal3, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        return $tests;
+    }
+
+}
+
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Component/VTodoTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VTodoTest.php
new file mode 100644
index 000000000..a84da5cdf
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Component/VTodoTest.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject\Component;
+
+class VTodoTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @dataProvider timeRangeTestData
+     */
+    public function testInTimeRange(VTodo $vtodo,$start,$end,$outcome) {
+
+        $this->assertEquals($outcome, $vtodo->isInTimeRange($start, $end));
+
+    }
+
+    public function timeRangeTestData() {
+
+        $tests = array();
+
+        $vtodo = Component::create('VTODO');
+        $vtodo->DTSTART = '20111223T120000Z';
+        $tests[] = array($vtodo, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vtodo, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vtodo2 = clone $vtodo;
+        $vtodo2->DURATION = 'P1D';
+        $tests[] = array($vtodo2, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vtodo2, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vtodo3 = clone $vtodo;
+        $vtodo3->DUE = '20111225';
+        $tests[] = array($vtodo3, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vtodo3, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vtodo4 = Component::create('VTODO');
+        $vtodo4->DUE = '20111225';
+        $tests[] = array($vtodo4, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vtodo4, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vtodo5 = Component::create('VTODO');
+        $vtodo5->COMPLETED = '20111225';
+        $tests[] = array($vtodo5, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vtodo5, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vtodo6 = Component::create('VTODO');
+        $vtodo6->CREATED = '20111225';
+        $tests[] = array($vtodo6, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vtodo6, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vtodo7 = Component::create('VTODO');
+        $vtodo7->CREATED = '20111225';
+        $vtodo7->COMPLETED = '20111226';
+        $tests[] = array($vtodo7, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vtodo7, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false);
+
+        $vtodo7 = Component::create('VTODO');
+        $tests[] = array($vtodo7, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true);
+        $tests[] = array($vtodo7, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), true);
+
+        return $tests;
+
+    }
+
+}
+
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/ComponentTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/ComponentTest.php
new file mode 100644
index 000000000..07000bda0
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/ComponentTest.php
@@ -0,0 +1,413 @@
+<?php
+
+namespace Sabre\VObject;
+
+class ComponentTest extends \PHPUnit_Framework_TestCase {
+
+    function testIterate() {
+
+        $comp = new Component('VCALENDAR');
+
+        $sub = new Component('VEVENT');
+        $comp->children[] = $sub;
+
+        $sub = new Component('VTODO');
+        $comp->children[] = $sub;
+
+        $count = 0;
+        foreach($comp->children() as $key=>$subcomponent) {
+
+           $count++;
+           $this->assertInstanceOf('Sabre\\VObject\\Component',$subcomponent);
+
+        }
+        $this->assertEquals(2,$count);
+        $this->assertEquals(1,$key);
+
+    }
+
+    function testMagicGet() {
+
+        $comp = new Component('VCALENDAR');
+
+        $sub = new Component('VEVENT');
+        $comp->children[] = $sub;
+
+        $sub = new Component('VTODO');
+        $comp->children[] = $sub;
+
+        $event = $comp->vevent;
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $event);
+        $this->assertEquals('VEVENT', $event->name);
+
+        $this->assertInternalType('null', $comp->vjournal);
+
+    }
+
+    function testMagicGetGroups() {
+
+        $comp = new Component('VCARD');
+
+        $sub = new Property('GROUP1.EMAIL','1@1.com');
+        $comp->children[] = $sub;
+
+        $sub = new Property('GROUP2.EMAIL','2@2.com');
+        $comp->children[] = $sub;
+
+        $sub = new Property('EMAIL','3@3.com');
+        $comp->children[] = $sub;
+
+        $emails = $comp->email;
+        $this->assertEquals(3, count($emails));
+
+        $email1 = $comp->{"group1.email"};
+        $this->assertEquals('EMAIL', $email1[0]->name);
+        $this->assertEquals('GROUP1', $email1[0]->group);
+
+        $email3 = $comp->{".email"};
+        $this->assertEquals('EMAIL', $email3[0]->name);
+        $this->assertEquals(null, $email3[0]->group);
+
+    }
+
+    function testMagicIsset() {
+
+        $comp = new Component('VCALENDAR');
+
+        $sub = new Component('VEVENT');
+        $comp->children[] = $sub;
+
+        $sub = new Component('VTODO');
+        $comp->children[] = $sub;
+
+        $this->assertTrue(isset($comp->vevent));
+        $this->assertTrue(isset($comp->vtodo));
+        $this->assertFalse(isset($comp->vjournal));
+
+    }
+
+    function testMagicSetScalar() {
+
+        $comp = new Component('VCALENDAR');
+        $comp->myProp = 'myValue';
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property',$comp->MYPROP);
+        $this->assertEquals('myValue',$comp->MYPROP->value);
+
+
+    }
+
+    function testMagicSetScalarTwice() {
+
+        $comp = new Component('VCALENDAR');
+        $comp->myProp = 'myValue';
+        $comp->myProp = 'myValue';
+
+        $this->assertEquals(1,count($comp->children));
+        $this->assertInstanceOf('Sabre\\VObject\\Property',$comp->MYPROP);
+        $this->assertEquals('myValue',$comp->MYPROP->value);
+
+    }
+
+    function testMagicSetComponent() {
+
+        $comp = new Component('VCALENDAR');
+
+        // Note that 'myProp' is ignored here.
+        $comp->myProp = new Component('VEVENT');
+
+        $this->assertEquals(1, count($comp->children));
+
+        $this->assertEquals('VEVENT',$comp->VEVENT->name);
+
+    }
+
+    function testMagicSetTwice() {
+
+        $comp = new Component('VCALENDAR');
+
+        $comp->VEVENT = new Component('VEVENT');
+        $comp->VEVENT = new Component('VEVENT');
+
+        $this->assertEquals(1, count($comp->children));
+
+        $this->assertEquals('VEVENT',$comp->VEVENT->name);
+
+    }
+
+    function testArrayAccessGet() {
+
+        $comp = new Component('VCALENDAR');
+
+        $event = new Component('VEVENT');
+        $event->summary = 'Event 1';
+
+        $comp->add($event);
+
+        $event2 = clone $event;
+        $event2->summary = 'Event 2';
+
+        $comp->add($event2);
+
+        $this->assertEquals(2,count($comp->children()));
+        $this->assertTrue($comp->vevent[1] instanceof Component);
+        $this->assertEquals('Event 2', (string)$comp->vevent[1]->summary);
+
+    }
+
+    function testArrayAccessExists() {
+
+        $comp = new Component('VCALENDAR');
+
+        $event = new Component('VEVENT');
+        $event->summary = 'Event 1';
+
+        $comp->add($event);
+
+        $event2 = clone $event;
+        $event2->summary = 'Event 2';
+
+        $comp->add($event2);
+
+        $this->assertTrue(isset($comp->vevent[0]));
+        $this->assertTrue(isset($comp->vevent[1]));
+
+    }
+
+    /**
+     * @expectedException LogicException
+     */
+    function testArrayAccessSet() {
+
+        $comp = new Component('VCALENDAR');
+        $comp['hey'] = 'hi there';
+
+    }
+    /**
+     * @expectedException LogicException
+     */
+    function testArrayAccessUnset() {
+
+        $comp = new Component('VCALENDAR');
+        unset($comp[0]);
+
+    }
+
+    function testAddScalar() {
+
+        $comp = new Component('VCALENDAR');
+
+        $comp->add('myprop','value');
+
+        $this->assertEquals(1, count($comp->children));
+
+        $this->assertTrue($comp->children[0] instanceof Property);
+        $this->assertEquals('MYPROP',$comp->children[0]->name);
+        $this->assertEquals('value',$comp->children[0]->value);
+
+    }
+
+    function testAddScalarParams() {
+
+        $comp = Component::create('VCALENDAR');
+
+        $comp->add('myprop','value',array('param1'=>'value1'));
+
+        $this->assertEquals(1, count($comp->children));
+
+        $this->assertTrue($comp->children[0] instanceof Property);
+        $this->assertEquals('MYPROP',$comp->children[0]->name);
+        $this->assertEquals('value',$comp->children[0]->value);
+
+        $this->assertEquals(1, count($comp->children[0]->parameters));
+
+        $this->assertTrue($comp->children[0]->parameters[0] instanceof Parameter);
+        $this->assertEquals('PARAM1',$comp->children[0]->parameters[0]->name);
+        $this->assertEquals('value1',$comp->children[0]->parameters[0]->value);
+
+    }
+
+
+    function testAddComponent() {
+
+        $comp = new Component('VCALENDAR');
+
+        $comp->add(new Component('VEVENT'));
+
+        $this->assertEquals(1, count($comp->children));
+
+        $this->assertEquals('VEVENT',$comp->VEVENT->name);
+
+    }
+
+    function testAddComponentTwice() {
+
+        $comp = new Component('VCALENDAR');
+
+        $comp->add(new Component('VEVENT'));
+        $comp->add(new Component('VEVENT'));
+
+        $this->assertEquals(2, count($comp->children));
+
+        $this->assertEquals('VEVENT',$comp->VEVENT->name);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testAddArgFail() {
+
+        $comp = new Component('VCALENDAR');
+        $comp->add(new Component('VEVENT'),'hello');
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testAddArgFail2() {
+
+        $comp = new Component('VCALENDAR');
+        $comp->add(array());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testAddArgFail3() {
+
+        $comp = new Component('VCALENDAR');
+        $comp->add('hello',array());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testMagicSetInvalid() {
+
+        $comp = new Component('VCALENDAR');
+
+        // Note that 'myProp' is ignored here.
+        $comp->myProp = new \StdClass();
+
+        $this->assertEquals(1, count($comp->children));
+
+        $this->assertEquals('VEVENT',$comp->VEVENT->name);
+
+    }
+
+    function testMagicUnset() {
+
+        $comp = new Component('VCALENDAR');
+        $comp->add(new Component('VEVENT'));
+
+        unset($comp->vevent);
+
+        $this->assertEquals(array(), $comp->children);
+
+    }
+
+
+    function testCount() {
+
+        $comp = new Component('VCALENDAR');
+        $this->assertEquals(1,$comp->count());
+
+    }
+
+    function testChildren() {
+
+        $comp = new Component('VCALENDAR');
+
+        // Note that 'myProp' is ignored here.
+        $comp->children = array(
+            new Component('VEVENT'),
+            new Component('VTODO')
+        );
+
+        $r = $comp->children();
+        $this->assertTrue($r instanceof ElementList);
+        $this->assertEquals(2,count($r));
+    }
+
+    function testGetComponents() {
+
+        $comp = new Component('VCALENDAR');
+
+        // Note that 'myProp' is ignored here.
+        $comp->children = array(
+            new Property('FOO','BAR'),
+            new Component('VTODO')
+        );
+
+        $r = $comp->getComponents();
+        $this->assertInternalType('array', $r);
+        $this->assertEquals(1, count($r));
+        $this->assertEquals('VTODO', $r[0]->name);
+    }
+
+    function testSerialize() {
+
+        $comp = new Component('VCALENDAR');
+        $this->assertEquals("BEGIN:VCALENDAR\r\nEND:VCALENDAR\r\n", $comp->serialize());
+
+    }
+
+    function testSerializeChildren() {
+
+        $comp = new Component('VCALENDAR');
+        $comp->children = array(
+            new Component('VEVENT'),
+            new Component('VTODO')
+        );
+
+        $str = $comp->serialize();
+
+        $this->assertEquals("BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nEND:VEVENT\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n", $str);
+
+    }
+
+    function testSerializeOrderCompAndProp() {
+        
+        $comp = new Component('VCALENDAR');
+        $comp->add(new Component('VEVENT'));
+        $comp->add('PROP1','BLABLA');
+        $comp->add('VERSION','2.0');
+        $comp->add(new Component('VTIMEZONE'));
+
+        $str = $comp->serialize();
+
+        $this->assertEquals("BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPROP1:BLABLA\r\nBEGIN:VTIMEZONE\r\nEND:VTIMEZONE\r\nBEGIN:VEVENT\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n", $str);
+
+    }
+
+    function testAnotherSerializeOrderProp() {
+
+        $prop4s=array('1', '2', '3', '4', '5', '6', '7', '8', '9', '10');
+
+        $comp = new Component('VCARD');
+        $comp->__set('SOMEPROP','FOO');
+        $comp->__set('ANOTHERPROP','FOO');
+        $comp->__set('THIRDPROP','FOO');
+        foreach ($prop4s as $prop4) {
+            $comp->add('PROP4', 'FOO '.$prop4);
+        }
+        $comp->__set('PROPNUMBERFIVE', 'FOO');
+        $comp->__set('PROPNUMBERSIX', 'FOO');
+        $comp->__set('PROPNUMBERSEVEN', 'FOO');
+        $comp->__set('PROPNUMBEREIGHT', 'FOO');
+        $comp->__set('PROPNUMBERNINE', 'FOO');
+        $comp->__set('PROPNUMBERTEN', 'FOO');
+        $comp->__set('VERSION','2.0');
+        $comp->__set('UID', 'FOO');
+
+        $str = $comp->serialize();
+
+        $this->assertEquals("BEGIN:VCARD\r\nVERSION:2.0\r\nSOMEPROP:FOO\r\nANOTHERPROP:FOO\r\nTHIRDPROP:FOO\r\nPROP4:FOO 1\r\nPROP4:FOO 2\r\nPROP4:FOO 3\r\nPROP4:FOO 4\r\nPROP4:FOO 5\r\nPROP4:FOO 6\r\nPROP4:FOO 7\r\nPROP4:FOO 8\r\nPROP4:FOO 9\r\nPROP4:FOO 10\r\nPROPNUMBERFIVE:FOO\r\nPROPNUMBERSIX:FOO\r\nPROPNUMBERSEVEN:FOO\r\nPROPNUMBEREIGHT:FOO\r\nPROPNUMBERNINE:FOO\r\nPROPNUMBERTEN:FOO\r\nUID:FOO\r\nEND:VCARD\r\n", $str);
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/DateTimeParserTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/DateTimeParserTest.php
new file mode 100644
index 000000000..6ea2faed9
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/DateTimeParserTest.php
@@ -0,0 +1,153 @@
+<?php
+
+namespace Sabre\VObject;
+
+use DateTime;
+use DateTimeZone;
+use DateInterval;
+
+class DateTimeParserTest extends \PHPUnit_Framework_TestCase {
+
+    function testParseICalendarDuration() {
+
+        $this->assertEquals('+1 weeks', DateTimeParser::parseDuration('P1W',true));
+        $this->assertEquals('+5 days',  DateTimeParser::parseDuration('P5D',true));
+        $this->assertEquals('+5 days 3 hours 50 minutes 12 seconds', DateTimeParser::parseDuration('P5DT3H50M12S',true));
+        $this->assertEquals('-1 weeks 50 minutes', DateTimeParser::parseDuration('-P1WT50M',true));
+        $this->assertEquals('+50 days 3 hours 2 seconds', DateTimeParser::parseDuration('+P50DT3H2S',true));
+        $this->assertEquals(new DateInterval('PT0S'), DateTimeParser::parseDuration('PT0S'));
+
+    }
+
+    function testParseICalendarDurationDateInterval() {
+
+        $expected = new DateInterval('P7D');
+        $this->assertEquals($expected, DateTimeParser::parseDuration('P1W'));
+        $this->assertEquals($expected, DateTimeParser::parse('P1W'));
+
+        $expected = new DateInterval('PT3M');
+        $expected->invert = true;
+        $this->assertEquals($expected, DateTimeParser::parseDuration('-PT3M'));
+
+    }
+
+    /**
+     * @expectedException LogicException
+     */
+    function testParseICalendarDurationFail() {
+
+        DateTimeParser::parseDuration('P1X',true);
+
+    }
+
+    function testParseICalendarDateTime() {
+
+        $dateTime = DateTimeParser::parseDateTime('20100316T141405');
+
+        $compare = new DateTime('2010-03-16 14:14:05',new DateTimeZone('UTC'));
+
+        $this->assertEquals($compare, $dateTime);
+
+    }
+
+    /**
+     * @depends testParseICalendarDateTime
+     * @expectedException LogicException
+     */
+    function testParseICalendarDateTimeBadFormat() {
+
+        $dateTime = DateTimeParser::parseDateTime('20100316T141405 ');
+
+    }
+
+    /**
+     * @depends testParseICalendarDateTime
+     */
+    function testParseICalendarDateTimeUTC() {
+
+        $dateTime = DateTimeParser::parseDateTime('20100316T141405Z');
+
+        $compare = new DateTime('2010-03-16 14:14:05',new DateTimeZone('UTC'));
+        $this->assertEquals($compare, $dateTime);
+
+    }
+
+    /**
+     * @depends testParseICalendarDateTime
+     */
+    function testParseICalendarDateTimeUTC2() {
+
+        $dateTime = DateTimeParser::parseDateTime('20101211T160000Z');
+
+        $compare = new DateTime('2010-12-11 16:00:00',new DateTimeZone('UTC'));
+        $this->assertEquals($compare, $dateTime);
+
+    }
+
+    /**
+     * @depends testParseICalendarDateTime
+     */
+    function testParseICalendarDateTimeCustomTimeZone() {
+
+        $dateTime = DateTimeParser::parseDateTime('20100316T141405', new DateTimeZone('Europe/Amsterdam'));
+
+        $compare = new DateTime('2010-03-16 13:14:05',new DateTimeZone('UTC'));
+        $this->assertEquals($compare, $dateTime);
+
+    }
+
+    function testParseICalendarDate() {
+
+        $dateTime = DateTimeParser::parseDate('20100316');
+
+        $expected = new DateTime('2010-03-16 00:00:00',new DateTimeZone('UTC'));
+
+        $this->assertEquals($expected, $dateTime);
+
+        $dateTime = DateTimeParser::parse('20100316');
+        $this->assertEquals($expected, $dateTime);
+
+    }
+
+    /**
+     * TCheck if a date with year > 4000 will not throw an exception. iOS seems to use 45001231 in yearly recurring events
+     */
+    function testParseICalendarDateGreaterThan4000() {
+
+        $dateTime = DateTimeParser::parseDate('45001231');
+
+        $expected = new DateTime('4500-12-31 00:00:00',new DateTimeZone('UTC'));
+
+        $this->assertEquals($expected, $dateTime);
+
+        $dateTime = DateTimeParser::parse('45001231');
+        $this->assertEquals($expected, $dateTime);
+
+    }
+
+    /**
+     * Check if a datetime with year > 4000 will not throw an exception. iOS seems to use 45001231T235959 in yearly recurring events
+     */
+    function testParseICalendarDateTimeGreaterThan4000() {
+
+        $dateTime = DateTimeParser::parseDateTime('45001231T235959');
+
+        $expected = new DateTime('4500-12-31 23:59:59',new DateTimeZone('UTC'));
+
+        $this->assertEquals($expected, $dateTime);
+
+        $dateTime = DateTimeParser::parse('45001231T235959');
+        $this->assertEquals($expected, $dateTime);
+
+    }
+
+    /**
+     * @depends testParseICalendarDate
+     * @expectedException LogicException
+     */
+    function testParseICalendarDateBadFormat() {
+
+        $dateTime = DateTimeParser::parseDate('20100316T141405');
+
+    }
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/DocumentTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/DocumentTest.php
new file mode 100644
index 000000000..5fd2a2a78
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/DocumentTest.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Sabre\VObject;
+
+class DocumentTest extends \PHPUnit_Framework_TestCase {
+
+    function testCreateComponent() {
+
+        $vcal = new Component\VCalendar();
+
+        $event = $vcal->createComponent('VEVENT');
+
+        $this->assertInstanceOf('Sabre\VObject\Component\VEvent', $event);
+        $vcal->add($event);
+
+        $prop = $vcal->createProperty('X-PROP','1234256',array('X-PARAM' => '3'));
+        $this->assertInstanceOf('Sabre\VObject\Property', $prop);
+
+        $event->add($prop);
+
+        $out = $vcal->serialize();
+        $this->assertEquals("BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nX-PROP;X-PARAM=3:1234256\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n", $out);
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/ElementListTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/ElementListTest.php
new file mode 100644
index 000000000..84e1bcbe9
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/ElementListTest.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Sabre\VObject;
+
+class ElementListTest extends \PHPUnit_Framework_TestCase {
+
+    function testIterate() {
+
+        $sub = new Component('VEVENT');
+
+        $elems = array(
+            $sub,
+            clone $sub,
+            clone $sub
+        );
+
+        $elemList = new ElementList($elems);
+
+        $count = 0;
+        foreach($elemList as $key=>$subcomponent) {
+
+           $count++;
+           $this->assertInstanceOf('Sabre\\VObject\\Component',$subcomponent);
+
+        }
+        $this->assertEquals(3,$count);
+        $this->assertEquals(2,$key);
+
+    }
+
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/EmClientTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/EmClientTest.php
new file mode 100644
index 000000000..69d410fe7
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/EmClientTest.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Sabre\VObject;
+
+class EmClientTest extends \PHPUnit_Framework_TestCase {
+
+    function testParseTz() {
+
+        $str = 'BEGIN:VCALENDAR
+X-WR-CALNAME:Blackhawks Schedule 2011-12
+X-APPLE-CALENDAR-COLOR:#E51717
+X-WR-TIMEZONE:America/Chicago
+CALSCALE:GREGORIAN
+PRODID:-//eM Client/4.0.13961.0
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:America/Chicago
+BEGIN:DAYLIGHT
+TZOFFSETFROM:-0600
+RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3
+DTSTART:20070311T020000
+TZNAME:CDT
+TZOFFSETTO:-0500
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:-0500
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11
+DTSTART:20071104T020000
+TZNAME:CST
+TZOFFSETTO:-0600
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+CREATED:20110624T181236Z
+UID:be3bbfff-96e8-4c66-9908-ab791a62231d
+DTEND;TZID="America/Chicago":20111008T223000
+TRANSP:OPAQUE
+SUMMARY:Stars @ Blackhawks (Home Opener)
+DTSTART;TZID="America/Chicago":20111008T193000
+DTSTAMP:20120330T013232Z
+SEQUENCE:2
+X-MICROSOFT-CDO-BUSYSTATUS:BUSY
+LAST-MODIFIED:20120330T013237Z
+CLASS:PUBLIC
+END:VEVENT
+END:VCALENDAR';
+
+        $vObject = Reader::read($str);
+        $dt = $vObject->VEVENT->DTSTART->getDateTime();
+        $this->assertEquals(new \DateTime('2011-10-08 19:30:00', new \DateTimeZone('America/Chicago')), $dt);
+
+    }
+
+}
+
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/FreeBusyGeneratorTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/FreeBusyGeneratorTest.php
new file mode 100644
index 000000000..1f79e0a47
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/FreeBusyGeneratorTest.php
@@ -0,0 +1,246 @@
+<?php
+
+namespace Sabre\VObject;
+
+class FreeBusyGeneratorTest extends \PHPUnit_Framework_TestCase {
+
+    function getInput() {
+
+        // shows up
+$blob1 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+DTEND:20110101T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+    // opaque, shows up
+$blob2 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+TRANSP:OPAQUE
+DTSTART:20110101T130000Z
+DTEND:20110101T140000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+    // transparent, hidden
+$blob3 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+TRANSP:TRANSPARENT
+DTSTART:20110101T140000Z
+DTEND:20110101T150000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+    // cancelled, hidden
+$blob4 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+STATUS:CANCELLED
+DTSTART:20110101T160000Z
+DTEND:20110101T170000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+    // tentative, shows up
+$blob5 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+STATUS:TENTATIVE
+DTSTART:20110101T180000Z
+DTEND:20110101T190000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+    // outside of time-range, hidden
+$blob6 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T090000Z
+DTEND:20110101T100000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+    // outside of time-range, hidden
+$blob7 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110104T090000Z
+DTEND:20110104T100000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+    // using duration, shows up
+$blob8 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T190000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+    // Day-long event, shows up
+$blob9 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART;TYPE=DATE:20110102
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+// No duration, does not show up
+$blob10 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T200000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+// encoded as object, shows up
+$blob11 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T210000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+// Freebusy. Some parts show up
+$blob12 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VFREEBUSY
+FREEBUSY:20110103T010000Z/20110103T020000Z
+FREEBUSY;FBTYPE=FREE:20110103T020000Z/20110103T030000Z
+FREEBUSY:20110103T030000Z/20110103T040000Z,20110103T040000Z/20110103T050000Z
+FREEBUSY:20120101T000000Z/20120101T010000Z
+FREEBUSY:20110103T050000Z/PT1H
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+// Yearly recurrence rule, shows up
+$blob13 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20100101T220000Z
+DTEND:20100101T230000Z
+RRULE:FREQ=YEARLY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+// Yearly recurrence rule + duration, shows up
+$blob14 = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20100101T230000Z
+DURATION:PT1H
+RRULE:FREQ=YEARLY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        return array(
+            $blob1,
+            $blob2,
+            $blob3,
+            $blob4,
+            $blob5,
+            $blob6,
+            $blob7,
+            $blob8,
+            $blob9,
+            $blob10,
+            Reader::read($blob11),
+            $blob12,
+            $blob13,
+            $blob14,
+        );
+
+    }
+
+    function testGenerator() {
+
+        $gen = new FreeBusyGenerator(
+            new \DateTime('20110101T110000Z', new \DateTimeZone('UTC')),
+            new \DateTime('20110103T110000Z', new \DateTimeZone('UTC')),
+            $this->getInput()
+        );
+
+        $result = $gen->getResult();
+
+        $expected = array(
+            '20110101T120000Z/20110101T130000Z',
+            '20110101T130000Z/20110101T140000Z',
+            '20110101T180000Z/20110101T190000Z',
+            '20110101T190000Z/20110101T200000Z',
+            '20110102T000000Z/20110103T000000Z',
+            '20110101T210000Z/20110101T220000Z',
+
+            '20110103T010000Z/20110103T020000Z',
+            '20110103T030000Z/20110103T040000Z',
+            '20110103T040000Z/20110103T050000Z',
+            '20110103T050000Z/20110103T060000Z',
+
+            '20110101T220000Z/20110101T230000Z',
+            '20110101T230000Z/20110102T000000Z',
+        );
+
+        foreach($result->VFREEBUSY->FREEBUSY as $fb) {
+
+            $this->assertContains((string)$fb, $expected);
+
+            $k = array_search((string)$fb, $expected);
+            unset($expected[$k]);
+
+        }
+        if (count($expected)>0) {
+            $this->fail('There were elements in the expected array that were not found in the output: ' . "\n"  . print_r($expected,true) . "\n" . $result->serialize());
+
+        }
+
+    }
+
+    function testGeneratorBaseObject() {
+
+        $obj = new Component('VCALENDAR');
+        $obj->METHOD = 'PUBLISH';
+
+        $gen = new FreeBusyGenerator();
+        $gen->setObjects(array());
+        $gen->setBaseObject($obj);
+
+        $result = $gen->getResult();
+
+        $this->assertEquals('PUBLISH', $result->METHOD->value);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testInvalidArg() {
+
+        $gen = new FreeBusyGenerator(
+            new \DateTime('2012-01-01'),
+            new \DateTime('2012-12-31'),
+            new \StdClass()
+        );
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Issue153Test.php b/vendor/sabre/vobject/tests/Sabre/VObject/Issue153Test.php
new file mode 100644
index 000000000..1cc14c161
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Issue153Test.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Sabre\VObject;
+
+class Issue153Test extends \PHPUnit_Framework_TestCase {
+
+    function testRead() {
+
+        $obj = Reader::read(file_get_contents(dirname(__FILE__) . '/issue153.vcf'));
+        $this->assertEquals('Test Benutzer', (string)$obj->fn);
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Issue154Test.php b/vendor/sabre/vobject/tests/Sabre/VObject/Issue154Test.php
new file mode 100644
index 000000000..ed9c7c3f4
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Issue154Test.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Sabre\VObject;
+
+class Issue154Test extends \PHPUnit_Framework_TestCase {
+
+    function testStuff() {
+
+        $vcard = new Component('VCARD');
+        $vcard->VERSION = '3.0';
+        $vcard->PHOTO = base64_encode('random_stuff');
+        $vcard->PHOTO->add('BASE64',null);
+        $vcard->UID = 'foo-bar';
+
+        $result = $vcard->serialize();
+        $expected = array(
+            "BEGIN:VCARD",
+            "VERSION:3.0",
+            "PHOTO;BASE64:" . base64_encode('random_stuff'),
+            "UID:foo-bar",
+            "END:VCARD",
+            "",
+        );
+
+        $this->assertEquals(implode("\r\n", $expected), $result);
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Issue48Test.php b/vendor/sabre/vobject/tests/Sabre/VObject/Issue48Test.php
new file mode 100644
index 000000000..980d432b9
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Issue48Test.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Sabre\VObject;
+
+use
+    DateTime,
+    DateTimeZone;
+
+class Issue48Test extends \PHPUnit_Framework_TestCase {
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTEND;TZID=Europe/Moscow:20130710T120000
+DTSTART;TZID=Europe/Moscow:20130710T110000
+RRULE:FREQ=DAILY;UNTIL=20130712T195959Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTEND;TZID=Europe/Moscow:20130713T120000
+DTSTART;TZID=Europe/Moscow:20130713T110000
+RECURRENCE-ID;TZID=Europe/Moscow:20130711T110000
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $it = new RecurrenceIterator($vcal, 'foo');
+
+        $result = iterator_to_array($it);
+
+        $tz = new DateTimeZone('Europe/Moscow');
+
+        $this->assertEquals(array(
+            new DateTime('2013-07-10 11:00:00', $tz),
+            new DateTime('2013-07-12 11:00:00', $tz),
+            new DateTime('2013-07-13 11:00:00', $tz),
+        ), $result);
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Issue50Test.php b/vendor/sabre/vobject/tests/Sabre/VObject/Issue50Test.php
new file mode 100644
index 000000000..fdb012ba2
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Issue50Test.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace Sabre\VObject;
+
+use
+    DateTime,
+    DateTimeZone;
+
+class Issue50Test extends \PHPUnit_Framework_TestCase {
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
+BEGIN:VTIMEZONE
+TZID:Europe/Brussels
+X-LIC-LOCATION:Europe/Brussels
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+TZNAME:CEST
+DTSTART:19700329T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+TZNAME:CET
+DTSTART:19701025T030000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+CREATED:20130705T142510Z
+LAST-MODIFIED:20130715T132556Z
+DTSTAMP:20130715T132556Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RRULE:FREQ=DAILY;COUNT=5
+DTSTART;TZID=Europe/Brussels:20130715T090000
+DTEND;TZID=Europe/Brussels:20130715T170000
+LOCATION:Job
+DESCRIPTION:Vrij
+X-MOZ-GENERATION:9
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20130715T081654Z
+LAST-MODIFIED:20130715T110931Z
+DTSTAMP:20130715T110931Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RECURRENCE-ID;TZID=Europe/Brussels:20130719T090000
+DTSTART;TZID=Europe/Brussels:20130719T070000
+DTEND;TZID=Europe/Brussels:20130719T150000
+SEQUENCE:1
+LOCATION:Job
+DESCRIPTION:Vrij
+X-MOZ-GENERATION:1
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20130715T111654Z
+LAST-MODIFIED:20130715T132556Z
+DTSTAMP:20130715T132556Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RECURRENCE-ID;TZID=Europe/Brussels:20130716T090000
+DTSTART;TZID=Europe/Brussels:20130716T070000
+DTEND;TZID=Europe/Brussels:20130716T150000
+SEQUENCE:1
+LOCATION:Job
+X-MOZ-GENERATION:2
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20130715T125942Z
+LAST-MODIFIED:20130715T130023Z
+DTSTAMP:20130715T130023Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RECURRENCE-ID;TZID=Europe/Brussels:20130717T090000
+DTSTART;TZID=Europe/Brussels:20130717T070000
+DTEND;TZID=Europe/Brussels:20130717T150000
+SEQUENCE:1
+LOCATION:Job
+X-MOZ-GENERATION:3
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20130715T130024Z
+LAST-MODIFIED:20130715T130034Z
+DTSTAMP:20130715T130034Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RECURRENCE-ID;TZID=Europe/Brussels:20130718T090000
+DTSTART;TZID=Europe/Brussels:20130718T090000
+DTEND;TZID=Europe/Brussels:20130718T170000
+LOCATION:Job
+X-MOZ-GENERATION:5
+DESCRIPTION:Vrij
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $it = new RecurrenceIterator($vcal, '1aef0b27-3d92-4581-829a-11999dd36724');
+
+        $result = array();
+        foreach($it as $instance) {
+
+            $result[] = $instance;
+
+        }
+
+        $tz = new DateTimeZone('Europe/Brussels');
+
+        $this->assertEquals(array(
+            new DateTime('2013-07-15 09:00:00', $tz),
+            new DateTime('2013-07-16 07:00:00', $tz),
+            new DateTime('2013-07-17 07:00:00', $tz),
+            new DateTime('2013-07-18 09:00:00', $tz),
+            new DateTime('2013-07-19 07:00:00', $tz),
+        ), $result);
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/ParameterTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/ParameterTest.php
new file mode 100644
index 000000000..90eb5d2aa
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/ParameterTest.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Sabre\VObject;
+
+class ParameterTest extends \PHPUnit_Framework_TestCase {
+
+    function testSetup() {
+
+        $param = new Parameter('name','value');
+        $this->assertEquals('NAME',$param->name);
+        $this->assertEquals('value',$param->value);
+        $this->assertEquals('value',$param->getValue());
+
+    }
+
+    function testCastToString() {
+
+        $param = new Parameter('name','value');
+        $this->assertEquals('value',$param->__toString());
+        $this->assertEquals('value',(string)$param);
+
+    }
+
+    function testSerialize() {
+
+        $param = new Parameter('name','value');
+        $this->assertEquals('NAME=value',$param->serialize());
+
+    }
+
+    function testSerializeEmpty() {
+
+        $param = new Parameter('name',null);
+        $this->assertEquals('NAME',$param->serialize());
+
+    }
+
+    function testSerializeColon() {
+
+        $param = new Parameter('name','va:lue');
+        $this->assertEquals('NAME="va:lue"',$param->serialize());
+
+    }
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Property/CompoundTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Property/CompoundTest.php
new file mode 100644
index 000000000..5d8cdaabb
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Property/CompoundTest.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Sabre\VObject\Property;
+use Sabre\VObject\Component;
+
+class CompoundTest extends \PHPUnit_Framework_TestCase {
+
+    function testSetParts() {
+
+        $arr = array(
+            'ABC, Inc.',
+            'North American Division',
+            'Marketing;Sales',
+        );
+
+        $elem = new Compound('ORG');
+        $elem->setParts($arr);
+
+        $this->assertEquals('ABC\, Inc.;North American Division;Marketing\;Sales', $elem->value);
+        $this->assertEquals(3, count($elem->getParts()));
+        $parts = $elem->getParts();
+        $this->assertEquals('Marketing;Sales', $parts[2]);
+
+    }
+
+    function testGetParts() {
+
+        $str = 'ABC\, Inc.;North American Division;Marketing\;Sales';
+
+        $elem = new Compound('ORG', $str);
+
+        $this->assertEquals(3, count($elem->getParts()));
+        $parts = $elem->getParts();
+        $this->assertEquals('Marketing;Sales', $parts[2]);
+    }
+
+    function testGetPartsDefaultDelimiter() {
+
+        $str = 'Hi!;Hello!';
+
+        $elem = new Compound('X-FOO', $str);
+
+        $this->assertEquals(array(
+            'Hi!',
+            'Hello!',
+        ), $elem->getParts());
+
+    }
+
+    function testGetPartsNull() {
+
+        $str = 'ABC\, Inc.;North American Division;Marketing\;Sales';
+
+        $elem = new Compound('ORG', null);
+
+        $this->assertEquals(0, count($elem->getParts()));
+
+    }
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Property/DateTimeTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Property/DateTimeTest.php
new file mode 100644
index 000000000..b5b522e7d
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Property/DateTimeTest.php
@@ -0,0 +1,240 @@
+<?php
+
+namespace Sabre\VObject\Property;
+use Sabre\VObject\Component;
+
+class DateTimeTest extends \PHPUnit_Framework_TestCase {
+
+    function testSetDateTime() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = new DateTime('DTSTART');
+        $elem->setDateTime($dt);
+
+        $this->assertEquals('19850704T013000', $elem->value);
+        $this->assertEquals('Europe/Amsterdam', (string)$elem['TZID']);
+        $this->assertEquals('DATE-TIME', (string)$elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+
+    }
+
+    function testSetDateTimeLOCAL() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = new DateTime('DTSTART');
+        $elem->setDateTime($dt, DateTime::LOCAL);
+
+        $this->assertEquals('19850704T013000', $elem->value);
+        $this->assertNull($elem['TZID']);
+        $this->assertEquals('DATE-TIME', (string)$elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeUTC() {
+
+        $tz = new \DateTimeZone('GMT');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = new DateTime('DTSTART');
+        $elem->setDateTime($dt, DateTime::UTC);
+
+        $this->assertEquals('19850704T013000Z', $elem->value);
+        $this->assertNull($elem['TZID']);
+        $this->assertEquals('DATE-TIME', (string)$elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeLOCALTZ() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = new DateTime('DTSTART');
+        $elem->setDateTime($dt, DateTime::LOCALTZ);
+
+        $this->assertEquals('19850704T013000', $elem->value);
+        $this->assertEquals('Europe/Amsterdam', (string)$elem['TZID']);
+        $this->assertEquals('DATE-TIME', (string)$elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeDATE() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = new DateTime('DTSTART');
+        $elem->setDateTime($dt, DateTime::DATE);
+
+        $this->assertEquals('19850704', $elem->value);
+        $this->assertNull($elem['TZID']);
+        $this->assertEquals('DATE', (string)$elem['VALUE']);
+
+        $this->assertFalse($elem->hasTime());
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testSetDateTimeInvalid() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = new DateTime('DTSTART');
+        $elem->setDateTime($dt, 7);
+
+    }
+
+    function testGetDateTimeCached() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = new DateTime('DTSTART');
+        $elem->setDateTime($dt);
+
+        $this->assertEquals($elem->getDateTime(), $dt);
+
+    }
+
+    function testGetDateTimeDateNULL() {
+
+        $elem = new DateTime('DTSTART');
+        $dt = $elem->getDateTime();
+
+        $this->assertNull($dt);
+        $this->assertNull($elem->getDateType());
+
+    }
+
+    function testGetDateTimeDateDATE() {
+
+        $elem = new DateTime('DTSTART','19850704');
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTime', $dt);
+        $this->assertEquals('1985-07-04 00:00:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals(DateTime::DATE, $elem->getDateType());
+
+    }
+
+
+    function testGetDateTimeDateLOCAL() {
+
+        $elem = new DateTime('DTSTART','19850704T013000');
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTime', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals(DateTime::LOCAL, $elem->getDateType());
+
+    }
+
+    function testGetDateTimeDateUTC() {
+
+        $elem = new DateTime('DTSTART','19850704T013000Z');
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTime', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('UTC', $dt->getTimeZone()->getName());
+        $this->assertEquals(DateTime::UTC, $elem->getDateType());
+
+    }
+
+    function testGetDateTimeDateLOCALTZ() {
+
+        $elem = new DateTime('DTSTART','19850704T013000');
+        $elem['TZID'] = 'Europe/Amsterdam';
+
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTime', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('Europe/Amsterdam', $dt->getTimeZone()->getName());
+        $this->assertEquals(DateTime::LOCALTZ, $elem->getDateType());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testGetDateTimeDateInvalid() {
+
+        $elem = new DateTime('DTSTART','bla');
+        $dt = $elem->getDateTime();
+
+    }
+
+    function testGetDateTimeWeirdTZ() {
+
+        $elem = new DateTime('DTSTART','19850704T013000');
+        $elem['TZID'] = '/freeassociation.sourceforge.net/Tzfile/Europe/Amsterdam';
+
+
+        $event = new Component('VEVENT');
+        $event->add($elem);
+
+        $timezone = new Component('VTIMEZONE');
+        $timezone->TZID = '/freeassociation.sourceforge.net/Tzfile/Europe/Amsterdam';
+        $timezone->{'X-LIC-LOCATION'} = 'Europe/Amsterdam';
+
+        $calendar = new Component('VCALENDAR');
+        $calendar->add($event);
+        $calendar->add($timezone);
+
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTime', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('Europe/Amsterdam', $dt->getTimeZone()->getName());
+        $this->assertEquals(DateTime::LOCALTZ, $elem->getDateType());
+
+    }
+
+    function testGetDateTimeBadTimeZone() {
+
+        $default = date_default_timezone_get();
+        date_default_timezone_set('Canada/Eastern');
+
+        $elem = new DateTime('DTSTART','19850704T013000');
+        $elem['TZID'] = 'Moon';
+
+
+        $event = new Component('VEVENT');
+        $event->add($elem);
+
+        $timezone = new Component('VTIMEZONE');
+        $timezone->TZID = 'Moon';
+        $timezone->{'X-LIC-LOCATION'} = 'Moon';
+
+        $calendar = new Component('VCALENDAR');
+        $calendar->add($event);
+        $calendar->add($timezone);
+
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTime', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('Canada/Eastern', $dt->getTimeZone()->getName());
+        $this->assertEquals(DateTime::LOCALTZ, $elem->getDateType());
+        date_default_timezone_set($default);
+
+    }
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Property/MultiDateTimeTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Property/MultiDateTimeTest.php
new file mode 100644
index 000000000..177616652
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Property/MultiDateTimeTest.php
@@ -0,0 +1,208 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+class MultiDateTimeTest extends \PHPUnit_Framework_TestCase {
+
+    function testSetDateTime() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt1 = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt2 = new \DateTime('1986-07-04 01:30:00', $tz);
+        $dt1->setTimeZone($tz);
+        $dt2->setTimeZone($tz);
+
+        $elem = new MultiDateTime('DTSTART');
+        $elem->setDateTimes(array($dt1,$dt2));
+
+        $this->assertEquals('19850704T013000,19860704T013000', $elem->value);
+        $this->assertEquals('Europe/Amsterdam', (string)$elem['TZID']);
+        $this->assertEquals('DATE-TIME', (string)$elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+
+    }
+
+    function testSetDateTimeLOCAL() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt1 = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt2 = new \DateTime('1986-07-04 01:30:00', $tz);
+        $dt1->setTimeZone($tz);
+        $dt2->setTimeZone($tz);
+
+        $elem = new MultiDateTime('DTSTART');
+        $elem->setDateTimes(array($dt1,$dt2), DateTime::LOCAL);
+
+        $this->assertEquals('19850704T013000,19860704T013000', $elem->value);
+        $this->assertNull($elem['TZID']);
+        $this->assertEquals('DATE-TIME', (string)$elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeUTC() {
+
+        $tz = new \DateTimeZone('GMT');
+        $dt1 = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt2 = new \DateTime('1986-07-04 01:30:00', $tz);
+        $dt1->setTimeZone($tz);
+        $dt2->setTimeZone($tz);
+
+        $elem = new MultiDateTime('DTSTART');
+        $elem->setDateTimes(array($dt1,$dt2), DateTime::UTC);
+
+        $this->assertEquals('19850704T013000Z,19860704T013000Z', $elem->value);
+        $this->assertNull($elem['TZID']);
+        $this->assertEquals('DATE-TIME', (string)$elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeLOCALTZ() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt1 = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt2 = new \DateTime('1986-07-04 01:30:00', $tz);
+        $dt1->setTimeZone($tz);
+        $dt2->setTimeZone($tz);
+
+        $elem = new MultiDateTime('DTSTART');
+        $elem->setDateTimes(array($dt1,$dt2), DateTime::LOCALTZ);
+
+        $this->assertEquals('19850704T013000,19860704T013000', $elem->value);
+        $this->assertEquals('Europe/Amsterdam', (string)$elem['TZID']);
+        $this->assertEquals('DATE-TIME', (string)$elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeDATE() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt1 = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt2 = new \DateTime('1986-07-04 01:30:00', $tz);
+        $dt1->settimezone($tz);
+        $dt2->settimezone($tz);
+
+        $elem = new MultiDateTime('DTSTART');
+        $elem->setDateTimes(array($dt1,$dt2), DateTime::DATE);
+
+        $this->assertEquals('19850704,19860704', $elem->value);
+        $this->assertNull($elem['TZID']);
+        $this->assertEquals('DATE', (string)$elem['VALUE']);
+
+        $this->assertFalse($elem->hasTime());
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testSetDateTimeInvalid() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = new MultiDateTime('DTSTART');
+        $elem->setDateTimes(array($dt), 7);
+
+    }
+
+    function testGetDateTimeCached() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt1 = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt2 = new \DateTime('1986-07-04 01:30:00', $tz);
+        $dt1->settimezone($tz);
+        $dt2->settimezone($tz);
+
+        $elem = new MultiDateTime('DTSTART');
+        $elem->setDateTimes(array($dt1,$dt2));
+
+        $this->assertEquals($elem->getDateTimes(), array($dt1,$dt2));
+
+    }
+
+    function testGetDateTimeDateNULL() {
+
+        $elem = new MultiDateTime('DTSTART');
+        $dt = $elem->getDateTimes();
+
+        $this->assertNull($dt);
+        $this->assertNull($elem->getDateType());
+
+    }
+
+    function testGetDateTimeDateDATE() {
+
+        $elem = new MultiDateTime('DTSTART','19850704,19860704');
+        $dt = $elem->getDateTimes();
+
+        $this->assertEquals('1985-07-04 00:00:00', $dt[0]->format('Y-m-d H:i:s'));
+        $this->assertEquals('1986-07-04 00:00:00', $dt[1]->format('Y-m-d H:i:s'));
+        $this->assertEquals(DateTime::DATE, $elem->getDateType());
+
+    }
+
+    function testGetDateTimeDateDATEReverse() {
+
+        $elem = new MultiDateTime('DTSTART','19850704,19860704');
+
+        $this->assertEquals(DateTime::DATE, $elem->getDateType());
+
+        $dt = $elem->getDateTimes();
+        $this->assertEquals('1985-07-04 00:00:00', $dt[0]->format('Y-m-d H:i:s'));
+        $this->assertEquals('1986-07-04 00:00:00', $dt[1]->format('Y-m-d H:i:s'));
+
+    }
+
+
+    function testGetDateTimeDateLOCAL() {
+
+        $elem = new DateTime('DTSTART','19850704T013000');
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTime', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals(DateTime::LOCAL, $elem->getDateType());
+
+    }
+
+    function testGetDateTimeDateUTC() {
+
+        $elem = new DateTime('DTSTART','19850704T013000Z');
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTime', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('UTC', $dt->getTimeZone()->getName());
+        $this->assertEquals(DateTime::UTC, $elem->getDateType());
+
+    }
+
+    function testGetDateTimeDateLOCALTZ() {
+
+        $elem = new DateTime('DTSTART','19850704T013000');
+        $elem['TZID'] = 'Europe/Amsterdam';
+
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTime', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('Europe/Amsterdam', $dt->getTimeZone()->getName());
+        $this->assertEquals(DateTime::LOCALTZ, $elem->getDateType());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testGetDateTimeDateInvalid() {
+
+        $elem = new DateTime('DTSTART','bla');
+        $dt = $elem->getDateTime();
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/PropertyTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/PropertyTest.php
new file mode 100644
index 000000000..3bb289567
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/PropertyTest.php
@@ -0,0 +1,324 @@
+<?php
+
+namespace Sabre\VObject;
+
+class PropertyTest extends \PHPUnit_Framework_TestCase {
+
+    public function testToString() {
+
+        $property = new Property('propname','propvalue');
+        $this->assertEquals('PROPNAME', $property->name);
+        $this->assertEquals('propvalue', $property->value);
+        $this->assertEquals('propvalue', $property->__toString());
+        $this->assertEquals('propvalue', (string)$property);
+        $this->assertEquals('propvalue', $property->getValue());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    public function testCreateNonScalar() {
+
+        $property = new Property('propname',array());
+
+    }
+
+    public function testParameterExists() {
+
+        $property = new Property('propname','propvalue');
+        $property->parameters[] = new Parameter('paramname','paramvalue');
+
+        $this->assertTrue(isset($property['PARAMNAME']));
+        $this->assertTrue(isset($property['paramname']));
+        $this->assertFalse(isset($property['foo']));
+
+    }
+
+    public function testParameterGet() {
+
+        $property = new Property('propname','propvalue');
+        $property->parameters[] = new Parameter('paramname','paramvalue');
+
+        $this->assertInstanceOf('Sabre\\VObject\\Parameter',$property['paramname']);
+
+    }
+
+    public function testParameterNotExists() {
+
+        $property = new Property('propname','propvalue');
+        $property->parameters[] = new Parameter('paramname','paramvalue');
+
+        $this->assertInternalType('null',$property['foo']);
+
+    }
+
+    public function testParameterMultiple() {
+
+        $property = new Property('propname','propvalue');
+        $property->parameters[] = new Parameter('paramname','paramvalue');
+        $property->parameters[] = new Parameter('paramname','paramvalue');
+
+        $this->assertInstanceOf('Sabre\\VObject\\Parameter',$property['paramname']);
+        $this->assertEquals(2,count($property['paramname']));
+
+    }
+
+    public function testSetParameterAsString() {
+
+        $property = new Property('propname','propvalue');
+        $property['paramname'] = 'paramvalue';
+
+        $this->assertEquals(1,count($property->parameters));
+        $this->assertInstanceOf('Sabre\\VObject\\Parameter', $property->parameters[0]);
+        $this->assertEquals('PARAMNAME',$property->parameters[0]->name);
+        $this->assertEquals('paramvalue',$property->parameters[0]->value);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    public function testSetParameterAsStringNoKey() {
+
+        $property = new Property('propname','propvalue');
+        $property[] = 'paramvalue';
+
+    }
+
+    public function testSetParameterObject() {
+
+        $property = new Property('propname','propvalue');
+        $param = new Parameter('paramname','paramvalue');
+
+        $property[] = $param;
+
+        $this->assertEquals(1,count($property->parameters));
+        $this->assertEquals($param, $property->parameters[0]);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    public function testSetParameterObjectWithKey() {
+
+        $property = new Property('propname','propvalue');
+        $param = new Parameter('paramname','paramvalue');
+
+        $property['key'] = $param;
+
+    }
+
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    public function testSetParameterObjectRandomObject() {
+
+        $property = new Property('propname','propvalue');
+        $property[] = new \StdClass();
+
+    }
+
+    public function testUnsetParameter() {
+
+        $property = new Property('propname','propvalue');
+        $param = new Parameter('paramname','paramvalue');
+        $property->parameters[] = $param;
+
+        unset($property['PARAMNAME']);
+        $this->assertEquals(0,count($property->parameters));
+
+    }
+
+    public function testParamCount() {
+
+        $property = new Property('propname','propvalue');
+        $param = new Parameter('paramname','paramvalue');
+        $property->parameters[] = $param;
+        $property->parameters[] = clone $param;
+
+        $this->assertEquals(2,count($property->parameters));
+
+    }
+
+    public function testSerialize() {
+
+        $property = new Property('propname','propvalue');
+
+        $this->assertEquals("PROPNAME:propvalue\r\n",$property->serialize());
+
+    }
+
+    public function testSerializeParam() {
+
+        $property = new Property('propname','propvalue');
+        $property->parameters[] = new Parameter('paramname','paramvalue');
+        $property->parameters[] = new Parameter('paramname2','paramvalue2');
+
+        $this->assertEquals("PROPNAME;PARAMNAME=paramvalue;PARAMNAME2=paramvalue2:propvalue\r\n",$property->serialize());
+
+    }
+
+    public function testSerializeNewLine() {
+
+        $property = new Property('propname',"line1\nline2");
+
+        $this->assertEquals("PROPNAME:line1\\nline2\r\n",$property->serialize());
+
+    }
+
+    public function testSerializeLongLine() {
+
+        $value = str_repeat('!',200);
+        $property = new Property('propname',$value);
+
+        $expected = "PROPNAME:" . str_repeat('!',66) . "\r\n " . str_repeat('!',74) . "\r\n " . str_repeat('!',60) . "\r\n";
+
+        $this->assertEquals($expected,$property->serialize());
+
+    }
+
+    public function testSerializeUTF8LineFold() {
+
+        $value = str_repeat('!',65) . "\xc3\xa4bla"; // inserted umlaut-a
+        $property = new Property('propname', $value);
+        $expected = "PROPNAME:" . str_repeat('!',65) . "\r\n \xc3\xa4bla\r\n";
+        $this->assertEquals($expected, $property->serialize());
+
+    }
+
+    public function testGetIterator() {
+
+        $it = new ElementList(array());
+        $property = new Property('propname','propvalue');
+        $property->setIterator($it);
+        $this->assertEquals($it,$property->getIterator());
+
+    }
+
+
+    public function testGetIteratorDefault() {
+
+        $property = new Property('propname','propvalue');
+        $it = $property->getIterator();
+        $this->assertTrue($it instanceof ElementList);
+        $this->assertEquals(1,count($it));
+
+    }
+
+    function testAddScalar() {
+
+        $property = new Property('EMAIL');
+
+        $property->add('myparam','value');
+
+        $this->assertEquals(1, count($property->parameters));
+
+        $this->assertTrue($property->parameters[0] instanceof Parameter);
+        $this->assertEquals('MYPARAM',$property->parameters[0]->name);
+        $this->assertEquals('value',$property->parameters[0]->value);
+
+    }
+
+    function testAddParameter() {
+
+        $prop = new Property('EMAIL');
+
+        $prop->add(new Parameter('MYPARAM','value'));
+
+        $this->assertEquals(1, count($prop->parameters));
+        $this->assertEquals('MYPARAM',$prop['myparam']->name);
+
+    }
+
+    function testAddParameterTwice() {
+
+        $prop = new Property('EMAIL');
+
+        $prop->add(new Parameter('MYPARAM', 'value1'));
+        $prop->add(new Parameter('MYPARAM', 'value2'));
+
+        $this->assertEquals(2, count($prop->parameters));
+
+        $this->assertEquals('MYPARAM',$prop['MYPARAM']->name);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testAddArgFail() {
+
+        $prop = new Property('EMAIL');
+        $prop->add(new Parameter('MPARAM'),'hello');
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testAddArgFail2() {
+
+        $property = new Property('EMAIL','value');
+        $property->add(array());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testAddArgFail3() {
+
+        $property = new Property('EMAIL','value');
+        $property->add('hello',array());
+
+    }
+
+    function testClone() {
+
+        $property = new Property('EMAIL','value');
+        $property['FOO'] = 'BAR';
+
+        $property2 = clone $property;
+        
+        $property['FOO'] = 'BAZ';
+        $this->assertEquals('BAR', (string)$property2['FOO']);
+
+    }
+
+    function testCreateParams() {
+
+        $property = Property::create('X-PROP', 'value', array(
+            'param1' => 'value1',
+            'param2' => array('value2', 'value3')
+        ));
+
+        $this->assertEquals(1, count($property['PARAM1']));
+        $this->assertEquals(2, count($property['PARAM2']));
+
+    }
+
+    function testValidateNonUTF8() {
+
+        $property = Property::create('X-PROP', "Bla\x00");
+        $result = $property->validate(Property::REPAIR);
+
+        $this->assertEquals('Property is not valid UTF-8!', $result[0]['message']);
+        $this->assertEquals('Bla', $property->value);
+
+    }
+
+
+    function testValidateBadPropertyName() {
+
+        $property = Property::create("X_*&PROP*", "Bla");
+        $result = $property->validate(Property::REPAIR);
+
+        $this->assertEquals($result[0]['message'], 'The propertyname: X_*&PROP* contains invalid characters. Only A-Z, 0-9 and - are allowed');
+        $this->assertEquals('X-PROP', $property->name);
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/ReaderTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/ReaderTest.php
new file mode 100644
index 000000000..0969c6e52
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/ReaderTest.php
@@ -0,0 +1,367 @@
+<?php
+
+namespace Sabre\VObject;
+
+class ReaderTest extends \PHPUnit_Framework_TestCase {
+
+    function testReadComponent() {
+
+        $data = "BEGIN:VCALENDAR\r\nEND:VCALENDAR";
+
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children));
+
+    }
+
+    function testReadComponentUnixNewLine() {
+
+        $data = "BEGIN:VCALENDAR\nEND:VCALENDAR";
+
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children));
+
+    }
+
+    function testReadComponentMacNewLine() {
+
+        $data = "BEGIN:VCALENDAR\rEND:VCALENDAR";
+
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children));
+
+    }
+
+    function testReadComponentLineFold() {
+
+        $data = "BEGIN:\r\n\tVCALENDAR\r\nE\r\n ND:VCALENDAR";
+
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children));
+
+    }
+
+    /**
+     * @expectedException Sabre\VObject\ParseException
+     */
+    function testReadCorruptComponent() {
+
+        $data = "BEGIN:VCALENDAR\r\nEND:FOO";
+
+        $result = Reader::read($data);
+
+    }
+
+    function testReadProperty() {
+
+        $data = "PROPNAME:propValue";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->value);
+
+    }
+
+    function testReadPropertyWithNewLine() {
+
+        $data = 'PROPNAME:Line1\\nLine2\\NLine3\\\\Not the 4th line!';
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals("Line1\nLine2\nLine3\\Not the 4th line!", $result->value);
+
+    }
+
+    function testReadMappedProperty() {
+
+        $data = "DTSTART:20110529";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property\\DateTime', $result);
+        $this->assertEquals('DTSTART', $result->name);
+        $this->assertEquals('20110529', $result->value);
+
+    }
+
+    function testReadMappedPropertyGrouped() {
+
+        $data = "foo.DTSTART:20110529";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property\\DateTime', $result);
+        $this->assertEquals('DTSTART', $result->name);
+        $this->assertEquals('20110529', $result->value);
+
+    }
+
+
+    /**
+     * @expectedException Sabre\VObject\ParseException
+     */
+    function testReadBrokenLine() {
+
+        $data = "PROPNAME;propValue";
+        $result = Reader::read($data);
+
+    }
+
+    function testReadPropertyInComponent() {
+
+        $data = array(
+            "BEGIN:VCALENDAR",
+            "PROPNAME:propValue",
+            "END:VCALENDAR"
+        );
+
+        $result = Reader::read(implode("\r\n",$data));
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(1, count($result->children));
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result->children[0]);
+        $this->assertEquals('PROPNAME', $result->children[0]->name);
+        $this->assertEquals('propValue', $result->children[0]->value);
+
+    }
+    function testReadNestedComponent() {
+
+        $data = array(
+            "BEGIN:VCALENDAR",
+            "BEGIN:VTIMEZONE",
+            "BEGIN:DAYLIGHT",
+            "END:DAYLIGHT",
+            "END:VTIMEZONE",
+            "END:VCALENDAR"
+        );
+
+        $result = Reader::read(implode("\r\n",$data));
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(1, count($result->children));
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result->children[0]);
+        $this->assertEquals('VTIMEZONE', $result->children[0]->name);
+        $this->assertEquals(1, count($result->children[0]->children));
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result->children[0]->children[0]);
+        $this->assertEquals('DAYLIGHT', $result->children[0]->children[0]->name);
+
+
+    }
+
+    function testReadPropertyParameter() {
+
+        $data = "PROPNAME;PARAMNAME=paramvalue:propValue";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->value);
+        $this->assertEquals(1, count($result->parameters));
+        $this->assertEquals('PARAMNAME', $result->parameters[0]->name);
+        $this->assertEquals('paramvalue', $result->parameters[0]->value);
+
+    }
+
+    function testReadPropertyNoValue() {
+
+        $data = "PROPNAME;PARAMNAME:propValue";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->value);
+        $this->assertEquals(1, count($result->parameters));
+        $this->assertEquals('PARAMNAME', $result->parameters[0]->name);
+
+        $this->assertNull($result->parameters[0]->value);
+
+    }
+
+    function testReadPropertyParameterExtraColon() {
+
+        $data = "PROPNAME;PARAMNAME=paramvalue:propValue:anotherrandomstring";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue:anotherrandomstring', $result->value);
+        $this->assertEquals(1, count($result->parameters));
+        $this->assertEquals('PARAMNAME', $result->parameters[0]->name);
+        $this->assertEquals('paramvalue', $result->parameters[0]->value);
+
+    }
+
+    function testReadProperty2Parameters() {
+
+        $data = "PROPNAME;PARAMNAME=paramvalue;PARAMNAME2=paramvalue2:propValue";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->value);
+        $this->assertEquals(2, count($result->parameters));
+        $this->assertEquals('PARAMNAME', $result->parameters[0]->name);
+        $this->assertEquals('paramvalue', $result->parameters[0]->value);
+        $this->assertEquals('PARAMNAME2', $result->parameters[1]->name);
+        $this->assertEquals('paramvalue2', $result->parameters[1]->value);
+
+    }
+
+    function testReadPropertyParameterQuoted() {
+
+        $data = "PROPNAME;PARAMNAME=\"paramvalue\":propValue";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->value);
+        $this->assertEquals(1, count($result->parameters));
+        $this->assertEquals('PARAMNAME', $result->parameters[0]->name);
+        $this->assertEquals('paramvalue', $result->parameters[0]->value);
+
+    }
+    function testReadPropertyParameterNewLines() {
+
+        $data = "PROPNAME;PARAMNAME=paramvalue1\\nvalue2\\\\nvalue3:propValue";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->value);
+
+        $this->assertEquals(1, count($result->parameters));
+        $this->assertEquals('PARAMNAME', $result->parameters[0]->name);
+        $this->assertEquals("paramvalue1\nvalue2\\nvalue3", $result->parameters[0]->value);
+
+    }
+
+    function testReadPropertyParameterQuotedColon() {
+
+        $data = "PROPNAME;PARAMNAME=\"param:value\":propValue";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->value);
+        $this->assertEquals(1, count($result->parameters));
+        $this->assertEquals('PARAMNAME', $result->parameters[0]->name);
+        $this->assertEquals('param:value', $result->parameters[0]->value);
+
+    }
+
+    function testReadForgiving() {
+
+        $data = array(
+            "BEGIN:VCALENDAR",
+            "X_PROP:propValue",
+            "END:VCALENDAR"
+        );
+
+        $caught = false;
+        try {
+            $result = Reader::read(implode("\r\n",$data));
+        } catch (ParseException $e) {
+            $caught = true;
+        }
+
+        $this->assertEquals(true, $caught);
+
+        $result = Reader::read(implode("\r\n",$data), Reader::OPTION_FORGIVING);
+
+        $expected = implode("\r\n", array(
+            "BEGIN:VCALENDAR",
+            "X_PROP:propValue",
+            "END:VCALENDAR",
+            ""
+        ));
+
+        $this->assertEquals($expected, $result->serialize());
+
+
+    }
+
+    function testReadWithInvalidLine() {
+
+        $data = array(
+            "BEGIN:VCALENDAR",
+            "DESCRIPTION:propValue",
+            "Yes, we've actually seen a file with non-idented property values on multiple lines",
+            "END:VCALENDAR"
+        );
+
+        $caught = false;
+        try {
+            $result = Reader::read(implode("\r\n",$data));
+        } catch (ParseException $e) {
+            $caught = true;
+        }
+
+        $this->assertEquals(true, $caught);
+
+        $result = Reader::read(implode("\r\n",$data), Reader::OPTION_IGNORE_INVALID_LINES);
+
+        $expected = implode("\r\n", array(
+            "BEGIN:VCALENDAR",
+            "DESCRIPTION:propValue",
+            "END:VCALENDAR",
+            ""
+        ));
+
+        $this->assertEquals($expected, $result->serialize());
+
+
+    }
+
+    /**
+     * Reported as Issue 32.
+     *
+     * @expectedException \Sabre\VObject\ParseException
+     */
+    function testReadIncompleteFile() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:1.0
+BEGIN:VEVENT
+X-FUNAMBOL-FOLDER:DEFAULT_FOLDER
+X-FUNAMBOL-ALLDAY:0
+DTSTART:20111017T110000Z
+DTEND:20111017T123000Z
+X-MICROSOFT-CDO-BUSYSTATUS:BUSY
+CATEGORIES:
+LOCATION;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:Netviewer Meeting
+PRIORITY:1
+STATUS:3
+X-MICROSOFT-CDO-REPLYTIME:20111017T064200Z
+SUMMARY;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:Kopieren: test
+CLASS:PUBLIC
+AALARM:
+RRULE:
+X-FUNAMBOL-BILLINGINFO:
+X-FUNAMBOL-COMPANIES:
+X-FUNAMBOL-MILEAGE:
+X-FUNAMBOL-NOAGING:0
+ATTENDEE;STATUS=NEEDS ACTION;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:'Heino' heino@test.com
+ATTENDEE;STATUS=NEEDS ACTION;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:'Markus' test@test.com
+ATTENDEE;STATUS=NEEDS AC
+ICS;
+
+        Reader::read($input);
+
+    }
+
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorFifthTuesdayProblemTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorFifthTuesdayProblemTest.php
new file mode 100644
index 000000000..069832a0f
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorFifthTuesdayProblemTest.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Sabre\VObject;
+
+class RecurrenceIteratorFifthTuesdayProblemTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetDTEnd() {
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//iCal 4.0.4//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+TRANSP:OPAQUE
+DTEND;TZID=America/New_York:20070925T170000
+UID:uuid
+DTSTAMP:19700101T000000Z
+LOCATION:
+DESCRIPTION:
+STATUS:CONFIRMED
+SEQUENCE:18
+SUMMARY:Stuff
+DTSTART;TZID=America/New_York:20070925T160000
+CREATED:20071004T144642Z
+RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20071030T035959Z;BYDAY=5TU
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vObject = Reader::read($ics);
+        $it = new RecurrenceIterator($vObject, (string)$vObject->VEVENT->UID);
+
+        while($it->valid()) {
+            $it->next();
+        }
+
+        // If we got here, it means we were successful. The bug that was in the
+        // system before would fail on the 5th tuesday of the month, if the 5th
+        // tuesday did not exist.
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorIncorrectExpandTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorIncorrectExpandTest.php
new file mode 100644
index 000000000..9adc8537f
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorIncorrectExpandTest.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace Sabre\VObject;
+
+use
+    DateTime,
+    DateTimeZone;
+
+/**
+ * This is a unittest for Issue #53.
+ */
+class RecurrenceIteratorIncorrectExpandTest extends \PHPUnit_Framework_TestCase {
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130711T050000Z
+DTEND:20130711T053000Z
+RRULE:FREQ=DAILY;INTERVAL=1;COUNT=2
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130719T050000Z
+DTEND:20130719T053000Z
+RECURRENCE-ID:20130712T050000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $vcal->expand(new DateTime('2011-01-01'), new DateTime('2014-01-01'));
+
+        $result = $vcal->serialize();
+
+        $output = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART;VALUE=DATE-TIME:20130711T050000Z
+DTEND;VALUE=DATE-TIME:20130711T053000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130719T050000Z
+DTEND:20130719T053000Z
+RECURRENCE-ID:20130712T050000Z
+END:VEVENT
+END:VCALENDAR
+
+ICS;
+        $this->assertEquals($output, str_replace("\r", "", $result));
+    
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorInfiniteLoopProblemTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorInfiniteLoopProblemTest.php
new file mode 100644
index 000000000..670c39bae
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorInfiniteLoopProblemTest.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Sabre\VObject;
+
+use DateTime;
+use DateTimeZone;
+
+class RecurrenceIteratorInfiniteLoopProblemTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * This bug came from a Fruux customer. This would result in a never-ending
+     * request.
+     */
+    function testFastForwardTooFar() {
+
+        $ev = Component::create('VEVENT');
+        $ev->DTSTART = '20090420T180000Z';
+        $ev->RRULE = 'FREQ=WEEKLY;BYDAY=MO;UNTIL=20090704T205959Z;INTERVAL=1';
+
+        $this->assertFalse($ev->isInTimeRange(new DateTime('2012-01-01 12:00:00'),new DateTime('3000-01-01 00:00:00')));
+
+    }
+
+    /**
+     * Different bug, also likely an infinite loop.
+     */
+    function testYearlyByMonthLoop() {
+
+        $ev = Component::create('VEVENT');
+        $ev->UID = 'uuid';
+        $ev->DTSTART = '20120101T154500';
+        $ev->DTSTART['TZID'] = 'Europe/Berlin';
+        $ev->RRULE = 'FREQ=YEARLY;INTERVAL=1;UNTIL=20120203T225959Z;BYMONTH=2;BYSETPOS=1;BYDAY=SU,MO,TU,WE,TH,FR,SA';
+        $ev->DTEND = '20120101T164500';
+        $ev->DTEND['TZID'] = 'Europe/Berlin';
+
+        // This recurrence rule by itself is a yearly rule that should happen
+        // every february.
+        //
+        // The BYDAY part expands this to every day of the month, but the
+        // BYSETPOS limits this to only the 1st day of the month. Very crazy
+        // way to specify this, and could have certainly been a lot easier.
+        $cal = Component::create('VCALENDAR');
+        $cal->add($ev);
+
+        $it = new RecurrenceIterator($cal,'uuid');
+        $it->fastForward(new DateTime('2012-01-29 23:00:00', new DateTimeZone('UTC')));
+
+        $collect = array();
+
+        while($it->valid()) {
+            $collect[] = $it->getDTSTART();
+            if ($it->getDTSTART() > new DateTime('2013-02-05 22:59:59', new DateTimeZone('UTC'))) {
+                break;
+            }
+            $it->next();
+
+        }
+
+        $this->assertEquals(
+            array(new DateTime('2012-02-01 15:45:00', new DateTimeZone('Europe/Berlin'))),
+            $collect
+        );
+
+    }
+
+    /**
+     * Something, somewhere produced an ics with an interval set to 0. Because
+     * this means we increase the current day (or week, month) by 0, this also
+     * results in an infinite loop.
+     *
+     * @expectedException InvalidArgumentException
+     * @return void
+     */
+    function testZeroInterval() {
+
+        $ev = Component::create('VEVENT');
+        $ev->UID = 'uuid';
+        $ev->DTSTART = '20120824T145700Z';
+        $ev->RRULE = 'FREQ=YEARLY;INTERVAL=0';
+        $cal = Component::create('VCALENDAR');
+        $cal->add($ev);
+
+        $it = new RecurrenceIterator($cal,'uuid');
+        $it->fastForward(new DateTime('2013-01-01 23:00:00', new DateTimeZone('UTC')));
+
+        // if we got this far.. it means we are no longer infinitely looping
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorMinusOneProblemTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorMinusOneProblemTest.php
new file mode 100644
index 000000000..2c17f9f6b
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorMinusOneProblemTest.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\VObject;
+
+class RecurrenceIteratorMinusOneProblemTest extends \PHPUnit_Framework_TestCase {
+
+    function testMinusOne() {
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTAMP:20120314T203127Z
+UID:foo
+SUMMARY:foo
+RRULE:FREQ=YEARLY;UNTIL=20120314
+DTSTART;VALUE=DATE:20120315
+DTEND;VALUE=DATE:20120316
+SEQUENCE:1
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vObject = Reader::read($ics);
+        $it = new RecurrenceIterator($vObject, (string)$vObject->VEVENT->UID);
+
+        $this->assertTrue($it->valid());
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorMissingOverriddenTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorMissingOverriddenTest.php
new file mode 100644
index 000000000..f311329db
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorMissingOverriddenTest.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Sabre\VObject;
+
+use
+    DateTime,
+    DateTimeZone;
+
+class RecurrenceIteratorMissingOverriddenTest extends \PHPUnit_Framework_TestCase {
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130727T120000Z
+DURATION:PT1H
+RRULE:FREQ=DAILY;COUNT=2
+SUMMARY:A
+END:VEVENT
+BEGIN:VEVENT
+RECURRENCE-ID:20130728T120000Z
+UID:foo
+DTSTART:20140101T120000Z
+DURATION:PT1H
+SUMMARY:B
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $vcal->expand(new DateTime('2011-01-01'), new DateTime('2015-01-01'));
+
+        $result = $vcal->serialize();
+
+        $output = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART;VALUE=DATE-TIME:20130727T120000Z
+DURATION:PT1H
+SUMMARY:A
+END:VEVENT
+BEGIN:VEVENT
+RECURRENCE-ID:20130728T120000Z
+UID:foo
+DTSTART:20140101T120000Z
+DURATION:PT1H
+SUMMARY:B
+END:VEVENT
+END:VCALENDAR
+
+ICS;
+        $this->assertEquals($output, str_replace("\r","",$result));
+    
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorTest.php
new file mode 100644
index 000000000..1811d8b6f
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/RecurrenceIteratorTest.php
@@ -0,0 +1,1425 @@
+<?php
+
+namespace Sabre\VObject;
+
+use DateTime;
+use DateTimeZone;
+
+class RecurrenceIteratorTest extends \PHPUnit_Framework_TestCase {
+
+    function testValues() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;BYHOUR=10;BYMINUTE=5;BYSECOND=16;BYWEEKNO=32;BYYEARDAY=100,200';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07'),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertTrue($it->isInfinite());
+        $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 Component('VEVENT');
+        $ev->RRULE = 'FREQ=SMONTHLY;INTERVAL=3;UNTIL=20111025T000000Z';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07'),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($vcal,(string)$ev->uid);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testVCalendarNoUID() {
+
+        $vcal = new Component('VCALENDAR');
+        $it = new RecurrenceIterator($vcal);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testVCalendarInvalidUID() {
+
+        $vcal = new Component('VCALENDAR');
+        $it = new RecurrenceIterator($vcal,'foo');
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testHourly() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=HOURLY;INTERVAL=3;UNTIL=20111025T000000Z';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07 12:00:00', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($vcal,$ev->uid);
+
+        $this->assertEquals('hourly', $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 12:00:00', $tz),
+                new DateTime('2011-10-07 15:00:00', $tz),
+                new DateTime('2011-10-07 18:00:00', $tz),
+                new DateTime('2011-10-07 21:00:00', $tz),
+                new DateTime('2011-10-08 00:00:00', $tz),
+                new DateTime('2011-10-08 03:00:00', $tz),
+                new DateTime('2011-10-08 06:00:00', $tz),
+                new DateTime('2011-10-08 09:00:00', $tz),
+                new DateTime('2011-10-08 12:00:00', $tz),
+                new DateTime('2011-10-08 15:00:00', $tz),
+                new DateTime('2011-10-08 18:00:00', $tz),
+                new DateTime('2011-10-08 21:00:00', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testDaily() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;INTERVAL=3;UNTIL=20111025T000000Z';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 testDailyByDayByHour() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;BYDAY=SA,SU;BYHOUR=6,7';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-08 06:00:00', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('daily', $it->frequency);
+        $this->assertEquals(1, $it->interval);
+        $this->assertEquals(array('6','7'), $it->byHour);
+        $this->assertEquals(array('SA','SU'), $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('2011-10-08 06:00:00', $tz),
+                new datetime('2011-10-08 07:00:00', $tz),
+                new datetime('2011-10-09 06:00:00', $tz),
+                new datetime('2011-10-09 07:00:00', $tz),
+                new datetime('2011-10-15 06:00:00', $tz),
+                new datetime('2011-10-15 07:00:00', $tz),
+                new datetime('2011-10-16 06:00:00', $tz),
+                new datetime('2011-10-16 07:00:00', $tz),
+                new datetime('2011-10-22 06:00:00', $tz),
+                new datetime('2011-10-22 07:00:00', $tz),
+                new datetime('2011-10-23 06:00:00', $tz),
+                new datetime('2011-10-23 07:00:00', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testDailyByHour() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;INTERVAL=2;BYHOUR=10,11,12,13,14,15';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2012-10-11 12:00:00', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('daily', $it->frequency);
+        $this->assertEquals(2, $it->interval);
+        $this->assertEquals(array('10','11','12','13','14','15'), $it->byHour);
+
+        // 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('2012-10-11 12:00:00', $tz),
+                new datetime('2012-10-11 13:00:00', $tz),
+                new datetime('2012-10-11 14:00:00', $tz),
+                new datetime('2012-10-11 15:00:00', $tz),
+                new datetime('2012-10-13 10:00:00', $tz),
+                new datetime('2012-10-13 11:00:00', $tz),
+                new datetime('2012-10-13 12:00:00', $tz),
+                new datetime('2012-10-13 13:00:00', $tz),
+                new datetime('2012-10-13 14:00:00', $tz),
+                new datetime('2012-10-13 15:00:00', $tz),
+                new datetime('2012-10-15 10:00:00', $tz),
+                new datetime('2012-10-15 11:00:00', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testDailyByDay() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;INTERVAL=2;BYDAY=TU,WE,FR';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;COUNT=10';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 testWeeklyByDayByHour() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=MO;BYHOUR=8,9,10';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07 08:00:00', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('weekly', $it->frequency);
+        $this->assertEquals(2, $it->interval);
+        $this->assertEquals(array('TU','WE','FR'), $it->byDay);
+        $this->assertEquals(array('8','9','10'), $it->byHour);
+        $this->assertEquals('MO', $it->weekStart);
+
+        // Grabbing the next 12 items
+        $max = 15;
+        $result = array();
+        foreach($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            array(
+                new DateTime('2011-10-07 08:00:00', $tz),
+                new DateTime('2011-10-07 09:00:00', $tz),
+                new DateTime('2011-10-07 10:00:00', $tz),
+                new DateTime('2011-10-18 08:00:00', $tz),
+                new DateTime('2011-10-18 09:00:00', $tz),
+                new DateTime('2011-10-18 10:00:00', $tz),
+                new DateTime('2011-10-19 08:00:00', $tz),
+                new DateTime('2011-10-19 09:00:00', $tz),
+                new DateTime('2011-10-19 10:00:00', $tz),
+                new DateTime('2011-10-21 08:00:00', $tz),
+                new DateTime('2011-10-21 09:00:00', $tz),
+                new DateTime('2011-10-21 10:00:00', $tz),
+                new DateTime('2011-11-01 08:00:00', $tz),
+                new DateTime('2011-11-01 09:00:00', $tz),
+                new DateTime('2011-11-01 10:00:00', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testWeeklyByDaySpecificHour() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=SU';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07 18:00:00', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 18:00:00', $tz),
+                new DateTime('2011-10-18 18:00:00', $tz),
+                new DateTime('2011-10-19 18:00:00', $tz),
+                new DateTime('2011-10-21 18:00:00', $tz),
+                new DateTime('2011-11-01 18:00:00', $tz),
+                new DateTime('2011-11-02 18:00:00', $tz),
+                new DateTime('2011-11-04 18:00:00', $tz),
+                new DateTime('2011-11-15 18:00:00', $tz),
+                new DateTime('2011-11-16 18:00:00', $tz),
+                new DateTime('2011-11-18 18:00:00', $tz),
+                new DateTime('2011-11-29 18:00:00', $tz),
+                new DateTime('2011-11-30 18:00:00', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testWeeklyByDay() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=SU';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-10-07', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=3;COUNT=5';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-12-05', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=2;COUNT=12';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-12-31', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=5;COUNT=9;BYMONTHDAY=1,31,-7';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-01-01', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=2;COUNT=16;BYDAY=MO,-2TU,+1WE,3TH';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-01-03', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;COUNT=10;BYDAY=MO;BYMONTHDAY=1';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-08-01', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;COUNT=10;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=1,-1';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-01-03', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=10;INTERVAL=3';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-01-01', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 testYearlyLeapYear() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=3';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2012-02-29', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($vcal,(string)$ev->uid);
+
+        $this->assertEquals('yearly', $it->frequency);
+        $this->assertEquals(3, $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('2012-02-29', $tz),
+                new DateTime('2016-02-29', $tz),
+                new DateTime('2020-02-29', $tz),
+            ),
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testYearlyByMonth() {
+
+        $ev = new Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=8;INTERVAL=4;BYMONTH=4,10';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-04-07', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=8;INTERVAL=5;BYMONTH=4,10;BYDAY=1MO,-1SU';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-04-04', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=8;INTERVAL=5;BYMONTH=4,10;BYDAY=1MO,-1SU';
+        $dtStart = new Property\DateTime('DTSTART');
+        $dtStart->setDateTime(new DateTime('2011-04-04', new DateTimeZone('UTC')),Property\DateTime::UTC);
+
+        $ev->add($dtStart);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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', new DateTimeZone('UTC')));
+
+        $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 Component('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=10';
+        $dtStart = new Property\DateTime('DTSTART');
+
+        $tz = new DateTimeZone('Canada/Eastern');
+        $dtStart->setDateTime(new DateTime('2011-01-01 13:50:20', $tz),Property\DateTime::LOCALTZ);
+
+        $exDate1 = new Property\MultiDateTime('EXDATE');
+        $exDate1->setDateTimes(array(new DateTime('2012-01-01 13:50:20', $tz), new DateTime('2014-01-01 13:50:20', $tz)), Property\DateTime::LOCALTZ);
+        $exDate2 = new Property\MultiDateTime('EXDATE');
+        $exDate2->setDateTimes(array(new DateTime('2016-01-01 13:50:20', $tz)), Property\DateTime::LOCALTZ);
+
+        $ev->add($dtStart);
+        $ev->add($exDate1);
+        $ev->add($exDate2);
+
+        $vcal = Component::create('VCALENDAR');
+        $vcal->add($ev);
+
+        $it = new RecurrenceIterator($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 = Component::create('VCALENDAR');
+
+        $ev1 = 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 = 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 = Component::create('VEVENT');
+        $ev3->UID = 'overridden';
+        $ev3->{'RECURRENCE-ID'} = '20120113T120000Z';
+        $ev3->DTSTART = '20120115T140000Z';
+        $ev3->SUMMARY = 'Event 3';
+
+        $vcal->add($ev3);
+
+        $it = new RecurrenceIterator($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 = Component::create('VCALENDAR');
+
+        $ev1 = 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 = Component::create('VEVENT');
+        $ev2->UID = 'overridden';
+        $ev2->{'RECURRENCE-ID'} = '20120119T120000Z';
+        $ev2->DTSTART = '20120113T120000Z';
+        $ev2->SUMMARY = 'Override!';
+
+        $vcal->add($ev2);
+
+        $it = new RecurrenceIterator($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 = Component::create('VCALENDAR');
+
+        $ev1 = 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 = Component::create('VEVENT');
+        $ev2->UID = 'overridden';
+        $ev2->{'RECURRENCE-ID'} = '20120131T120000Z';
+        $ev2->DTSTART = '20120125T120000Z';
+        $ev2->SUMMARY = 'Override!';
+
+        $vcal->add($ev2);
+
+        $it = new RecurrenceIterator($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);
+
+    }
+}
+
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/SlashRTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/SlashRTest.php
new file mode 100644
index 000000000..ebbfb04a7
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/SlashRTest.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * This issue was pointed out in Issue 55. \r should be stripped completely 
+ * when encoding property values.
+ */
+class SlashRTest extends \PHPUnit_Framework_TestCase {
+
+    function testEncode() {
+
+        $prop = new \Sabre\VObject\Property('test', "abc\r\ndef");
+        $this->assertEquals("TEST:abc\\ndef\r\n", $prop->serialize());
+
+    }
+
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Splitter/ICalendarTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Splitter/ICalendarTest.php
new file mode 100644
index 000000000..43613350f
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Splitter/ICalendarTest.php
@@ -0,0 +1,283 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+use Sabre\VObject;
+
+class ICalendarSplitterTest extends \PHPUnit_Framework_TestCase {
+
+    protected $version;
+
+    function setup() {
+        $this->version = VObject\Version::VERSION;
+    }
+
+    function createStream($data) {
+
+        $stream = fopen('php://memory','r+');
+        fwrite($stream, $data);
+        rewind($stream);
+        return $stream;
+
+    }
+
+    function testICalendarImportValidEvent() {
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+END:VEVENT
+END:VCALENDAR
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        while($object=$objects->getNext()) {
+            $return .= $object->serialize();
+        }
+        $this->assertEquals(array(), VObject\Reader::read($return)->validate());
+    }
+
+    function testICalendarImportEndOfData() {
+        $data = <<<EOT
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+END:VEVENT
+END:VCALENDAR
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        while($object=$objects->getNext()) {
+            $return .= $object->serialize();
+        }
+        $this->assertNull($object=$objects->getNext());
+    }
+
+    /**
+     * @expectedException        Sabre\VObject\ParseException
+     */
+    function testICalendarImportInvalidEvent() {
+        $data = <<<EOT
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+    }
+
+    function testICalendarImportMultipleValidEvents() {
+
+        $event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo1
+END:VEVENT
+EOT;
+
+$event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo2
+END:VEVENT
+EOT;
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+$event[0]
+$event[1]
+END:VCALENDAR
+
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        $i = 0;
+        while($object=$objects->getNext()) {
+
+            $expected = <<<EOT
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $this->version//EN
+CALSCALE:GREGORIAN
+$event[$i]
+END:VCALENDAR
+
+EOT;
+
+            $return .= $object->serialize();
+            $expected = str_replace("\n", "\r\n", $expected);
+            $this->assertEquals($expected, $object->serialize());
+            $i++;
+        }
+        $this->assertEquals(array(), VObject\Reader::read($return)->validate());
+    }
+
+    function testICalendarImportEventWithoutUID() {
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $this->version//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+END:VEVENT
+END:VCALENDAR
+
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        while($object=$objects->getNext()) {
+            $expected = str_replace("\n", "\r\n", $data);
+            $this->assertEquals($expected, $object->serialize());
+            $return .= $object->serialize();
+        }
+
+        $this->assertEquals(array(), VObject\Reader::read($return)->validate());
+    }
+
+    function testICalendarImportMultipleVTIMEZONESAndMultipleValidEvents() {
+
+        $timezones = <<<EOT
+BEGIN:VTIMEZONE
+TZID:Europe/Berlin
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0100
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
+DTSTART:19810329T020000
+TZNAME:MESZ
+TZOFFSETTO:+0200
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0200
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
+DTSTART:19961027T030000
+TZNAME:MEZ
+TZOFFSETTO:+0100
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VTIMEZONE
+TZID:Europe/London
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
+DTSTART:19810329T010000
+TZNAME:GMT+01:00
+TZOFFSETTO:+0100
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0100
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
+DTSTART:19961027T020000
+TZNAME:GMT
+TZOFFSETTO:+0000
+END:STANDARD
+END:VTIMEZONE
+EOT;
+
+        $event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo1
+END:VEVENT
+EOT;
+
+        $event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo2
+END:VEVENT
+EOT;
+
+        $event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo3
+END:VEVENT
+EOT;
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+$timezones
+$event[0]
+$event[1]
+$event[2]
+END:VCALENDAR
+
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        $i = 0;
+        while($object=$objects->getNext()) {
+
+            $expected = <<<EOT
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $this->version//EN
+CALSCALE:GREGORIAN
+$timezones
+$event[$i]
+END:VCALENDAR
+
+EOT;
+            $expected = str_replace("\n", "\r\n", $expected);
+
+            $this->assertEquals($expected, $object->serialize());
+            $return .= $object->serialize();
+            $i++;
+
+        }
+
+        $this->assertEquals(array(), VObject\Reader::read($return)->validate());
+        $this->assertEquals(array(), VObject\Reader::read($return)->validate());
+    }
+
+    function testICalendarImportWithOutVTIMEZONES() {
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//Mac OS X 10.8//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+CREATED:20120605T072109Z
+UID:D6716295-C10F-4B20-82F9-E1A3026C7DCF
+DTEND;VALUE=DATE:20120717
+TRANSP:TRANSPARENT
+SUMMARY:Start Vorbereitung
+DTSTART;VALUE=DATE:20120716
+DTSTAMP:20120605T072115Z
+SEQUENCE:2
+BEGIN:VALARM
+X-WR-ALARMUID:A99EDA6A-35EB-4446-B8BC-CDA3C60C627D
+UID:A99EDA6A-35EB-4446-B8BC-CDA3C60C627D
+TRIGGER:-PT15H
+X-APPLE-DEFAULT-ALARM:TRUE
+ATTACH;VALUE=URI:Basso
+ACTION:AUDIO
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        while($object=$objects->getNext()) {
+            $return .= $object->serialize();
+        }
+
+        $this->assertEquals(array(), VObject\Reader::read($return)->validate());
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/Splitter/VCardTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/Splitter/VCardTest.php
new file mode 100644
index 000000000..b6b41925f
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/Splitter/VCardTest.php
@@ -0,0 +1,138 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+use Sabre\VObject;
+
+class VCardSplitterTest extends \PHPUnit_Framework_TestCase {
+
+    function createStream($data) {
+
+        $stream = fopen('php://memory','r+');
+        fwrite($stream, $data);
+        rewind($stream);
+        return $stream;
+
+    }
+
+    function testVCardImportValidVCard() {
+        $data = <<<EOT
+BEGIN:VCARD
+UID:foo
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+
+        $return = "";
+        while($object=$objects->getNext()) {
+            $return .= $object->serialize();
+        }
+
+        VObject\Reader::read($return);
+    }
+
+    function testVCardImportValidVCardsWithCategories() {
+        $data = <<<EOT
+BEGIN:VCARD
+UID:card-in-foo1-and-foo2
+CATEGORIES:foo1\,foo2
+END:VCARD
+BEGIN:VCARD
+UID:card-in-foo1
+CATEGORIES:foo1
+END:VCARD
+BEGIN:VCARD
+UID:card-in-foo3
+CATEGORIES:foo3
+END:VCARD
+BEGIN:VCARD
+UID:card-in-foo1-and-foo3
+CATEGORIES:foo1\,foo3
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+
+        $return = "";
+        while($object=$objects->getNext()) {
+            $return .= $object->serialize();
+        }
+
+        VObject\Reader::read($return);
+    }
+
+    function testVCardImportEndOfData() {
+        $data = <<<EOT
+BEGIN:VCARD
+UID:foo
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+        $object=$objects->getNext();
+
+        $this->assertFalse($object=$objects->getNext());
+
+
+    }
+
+    /**
+     * @expectedException        InvalidArgumentException
+     */
+    function testVCardImportCheckInvalidArgumentException() {
+        $data = <<<EOT
+BEGIN:FOO
+END:FOO
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+        while($object=$objects->getNext()) {
+            $return .= $object->serialize();
+        }
+
+    }
+
+    function testVCardImportMultipleValidVCards() {
+        $data = <<<EOT
+BEGIN:VCARD
+UID:foo
+END:VCARD
+BEGIN:VCARD
+UID:foo
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+
+        $return = "";
+        while($object=$objects->getNext()) {
+            $return .= $object->serialize();
+        }
+
+        VObject\Reader::read($return);
+    }
+
+    function testVCardImportVCardWithoutUID() {
+        $data = <<<EOT
+BEGIN:VCARD
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+
+        $return = "";
+        while($object=$objects->getNext()) {
+            $return .= $object->serialize();
+        }
+
+        VObject\Reader::read($return);
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/StringUtilTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/StringUtilTest.php
new file mode 100644
index 000000000..59a83d294
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/StringUtilTest.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Sabre\VObject;
+
+class StringUtilTest extends \PHPUnit_Framework_TestCase {
+
+    function testNonUTF8() {
+
+        $string = StringUtil::isUTF8(chr('0xbf'));
+
+        $this->assertEquals(false, $string);
+
+    }
+
+    function testIsUTF8() {
+
+        $string = StringUtil::isUTF8('I 💚 SabreDAV');
+
+        $this->assertEquals(true, $string);
+
+    }
+
+    function testUTF8ControlChar() {
+
+        $string = StringUtil::isUTF8(chr('0x00'));
+
+        $this->assertEquals(false, $string);
+
+    }
+
+    function testConvertToUTF8nonUTF8() {
+
+        $string = StringUtil::convertToUTF8(chr('0xbf'));
+
+        $this->assertEquals(utf8_encode(chr('0xbf')), $string);
+
+    }
+
+    function testConvertToUTF8IsUTF8() {
+
+        $string = StringUtil::convertToUTF8('I 💚 SabreDAV');
+
+        $this->assertEquals('I 💚 SabreDAV', $string);
+
+    }
+
+    function testConvertToUTF8ControlChar() {
+
+        $string = StringUtil::convertToUTF8(chr(0x00));
+
+        $this->assertEquals('', $string);
+
+    }
+
+      
+
+
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/TimeZoneUtilTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/TimeZoneUtilTest.php
new file mode 100644
index 000000000..7f76353d2
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/TimeZoneUtilTest.php
@@ -0,0 +1,297 @@
+<?php
+
+namespace Sabre\VObject;
+
+class TimezoneUtilTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @dataProvider getMapping
+     */
+    function testCorrectTZ($timezoneName) {
+
+        $tz = new \DateTimeZone($timezoneName);
+
+    }
+
+    function getMapping() {
+
+        // PHPUNit requires an array of arrays
+        return array_map(
+            function($value) {
+                return array($value);
+            },
+            TimeZoneUtil::$map
+        );
+
+    }
+
+    function testExchangeMap() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+METHOD:REQUEST
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:foo
+X-MICROSOFT-CDO-TZID:2
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010101T020000
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=3;BYDAY=-1SU
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20120416T092149Z
+DTSTART;TZID="foo":20120418T1
+ 00000
+SUMMARY:Begin Unterhaltsreinigung
+UID:040000008200E00074C5B7101A82E0080000000010DA091DC31BCD01000000000000000
+ 0100000008FECD2E607780649BE5A4C9EE6418CBC
+ 000
+END:VEVENT
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('foo', Reader::read($vobj));
+        $ex = new \DateTimeZone('Europe/Lisbon');
+
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testWetherMicrosoftIsStillInsane() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+METHOD:REQUEST
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:(GMT+01.00) Sarajevo/Warsaw/Zagreb
+X-MICROSOFT-CDO-TZID:2
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+END:VTIMEZONE
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('(GMT+01.00) Sarajevo/Warsaw/Zagreb', Reader::read($vobj));
+        $ex = new \DateTimeZone('Europe/Sarajevo');
+
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testUnknownExchangeId() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+METHOD:REQUEST
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:foo
+X-MICROSOFT-CDO-TZID:2000
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010101T020000
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=3;BYDAY=-1SU
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20120416T092149Z
+DTSTART;TZID="foo":20120418T1
+ 00000
+SUMMARY:Begin Unterhaltsreinigung
+UID:040000008200E00074C5B7101A82E0080000000010DA091DC31BCD01000000000000000
+ 0100000008FECD2E607780649BE5A4C9EE6418CBC
+DTEND;TZID="Sarajevo, Skopje, Sofija, Vilnius, Warsaw, Zagreb":20120418T103
+ 000
+END:VEVENT
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('foo', Reader::read($vobj));
+        $ex = new \DateTimeZone(date_default_timezone_get());
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testWindowsTimeZone() {
+
+        $tz = TimeZoneUtil::getTimeZone('Eastern Standard Time');
+        $ex = new \DateTimeZone('America/New_York');
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testTimezoneOffset() {
+
+        $tz = TimeZoneUtil::getTimeZone('GMT-0400', null, true);
+        $ex = new \DateTimeZone('Etc/GMT-4');
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testTimezoneFail() {
+
+        $tz = TimeZoneUtil::getTimeZone('FooBar',null,true);
+
+    }
+
+    function testFallBack() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+METHOD:REQUEST
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:foo
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010101T020000
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=3;BYDAY=-1SU
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20120416T092149Z
+DTSTART;TZID="foo":20120418T1
+ 00000
+SUMMARY:Begin Unterhaltsreinigung
+UID:040000008200E00074C5B7101A82E0080000000010DA091DC31BCD01000000000000000
+ 0100000008FECD2E607780649BE5A4C9EE6418CBC
+ 000
+END:VEVENT
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('foo', Reader::read($vobj));
+        $ex = new \DateTimeZone(date_default_timezone_get());
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testLjubljanaBug() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+PRODID:-//Ximian//NONSGML Evolution Calendar//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:/freeassociation.sourceforge.net/Tzfile/Europe/Ljubljana
+X-LIC-LOCATION:Europe/Ljubljana
+BEGIN:STANDARD
+TZNAME:CET
+DTSTART:19701028T030000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:CEST
+DTSTART:19700325T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:foo
+DTSTART;TZID=/freeassociation.sourceforge.net/Tzfile/Europe/Ljubljana:
+ 20121003T080000
+DTEND;TZID=/freeassociation.sourceforge.net/Tzfile/Europe/Ljubljana:
+ 20121003T083000
+TRANSP:OPAQUE
+SEQUENCE:2
+SUMMARY:testing
+CREATED:20121002T172613Z
+LAST-MODIFIED:20121002T172613Z
+END:VEVENT
+END:VCALENDAR
+
+HI;
+
+
+        $tz = TimeZoneUtil::getTimeZone('/freeassociation.sourceforge.net/Tzfile/Europe/Ljubljana', Reader::read($vobj));
+        $ex = new \DateTimeZone('Europe/Ljubljana');
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testWeirdSystemVLICs() {
+
+$vobj = <<<HI
+BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+PRODID:-//Ximian//NONSGML Evolution Calendar//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:/freeassociation.sourceforge.net/Tzfile/SystemV/EST5EDT
+X-LIC-LOCATION:SystemV/EST5EDT
+BEGIN:STANDARD
+TZNAME:EST
+DTSTART:19701104T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:EDT
+DTSTART:19700311T020000
+RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:20121026T021107Z-6301-1000-1-0@chAir
+DTSTAMP:20120905T172126Z
+DTSTART;TZID=/freeassociation.sourceforge.net/Tzfile/SystemV/EST5EDT:
+ 20121026T153000
+DTEND;TZID=/freeassociation.sourceforge.net/Tzfile/SystemV/EST5EDT:
+ 20121026T160000
+TRANSP:OPAQUE
+SEQUENCE:5
+SUMMARY:pick up Ibby
+CLASS:PUBLIC
+CREATED:20121026T021108Z
+LAST-MODIFIED:20121026T021118Z
+X-EVOLUTION-MOVE-CALENDAR:1
+END:VEVENT
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('/freeassociation.sourceforge.net/Tzfile/SystemV/EST5EDT', Reader::read($vobj), true);
+        $ex = new \DateTimeZone('EST5EDT');
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/VersionTest.php b/vendor/sabre/vobject/tests/Sabre/VObject/VersionTest.php
new file mode 100644
index 000000000..ae6855e85
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/VersionTest.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Sabre\VObject;
+
+class VersionTest extends \PHPUnit_Framework_TestCase {
+
+    function testString() {
+
+        $v = Version::VERSION;
+        $this->assertEquals(-1, version_compare('0.9.0',$v));
+
+        $s = Version::STABILITY;
+        $this->assertTrue($s == 'alpha' || $s == 'beta' || $s =='stable');
+
+    }
+
+}
diff --git a/vendor/sabre/vobject/tests/Sabre/VObject/issue153.vcf b/vendor/sabre/vobject/tests/Sabre/VObject/issue153.vcf
new file mode 100644
index 000000000..5fb0fa297
--- /dev/null
+++ b/vendor/sabre/vobject/tests/Sabre/VObject/issue153.vcf
@@ -0,0 +1,352 @@
+BEGIN:VCARD

+VERSION:3.0

+N:Benutzer;Test;;;

+FN:Test Benutzer

+PHOTO;BASE64:

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+END:VCARD