--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/sabre/vobject/tests/VObject/DateTimeParserTest.php	Sat Jan 13 09:06:10 2018 -0500
@@ -0,0 +1,389 @@
+<?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('+0 seconds', DateTimeParser::parseDuration('+PT0S',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 14:14:05',new DateTimeZone('Europe/Amsterdam'));
+        $this->assertEquals($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() {
+
+        $dateTime = DateTimeParser::parseDate('20100316T141405');
+
+    }
+
+    /**
+     * @dataProvider vcardDates
+     */
+    function testVCardDate($input, $output) {
+
+        $this->assertEquals(
+            $output,
+            DateTimeParser::parseVCardDateTime($input)
+        );
+
+    }
+
+    /**
+     * @dataProvider vcardDates
+     * @expectedException \InvalidArgumentException
+     */
+    function testBadVCardDate() {
+
+        DateTimeParser::parseVCardDateTime('1985---01');
+
+    }
+
+    /**
+     * @dataProvider vcardDates
+     * @expectedException \InvalidArgumentException
+     */
+    function testBadVCardTime() {
+
+        DateTimeParser::parseVCardTime('23:12:166');
+
+    }
+
+    function vcardDates() {
+
+        return array(
+            array(
+                "19961022T140000",
+                array(
+                    "year" => 1996,
+                    "month" => 10,
+                    "date" => 22,
+                    "hour" => 14,
+                    "minute" => 00,
+                    "second" => 00,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "--1022T1400",
+                array(
+                    "year" => null,
+                    "month" => 10,
+                    "date" => 22,
+                    "hour" => 14,
+                    "minute" => 00,
+                    "second" => null,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "---22T14",
+                array(
+                    "year" => null,
+                    "month" => null,
+                    "date" => 22,
+                    "hour" => 14,
+                    "minute" => null,
+                    "second" => null,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "19850412",
+                array(
+                    "year" => 1985,
+                    "month" => 4,
+                    "date" => 12,
+                    "hour" => null,
+                    "minute" => null,
+                    "second" => null,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "1985-04",
+                array(
+                    "year" => 1985,
+                    "month" => 04,
+                    "date" => null,
+                    "hour" => null,
+                    "minute" => null,
+                    "second" => null,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "1985",
+                array(
+                    "year" => 1985,
+                    "month" => null,
+                    "date" => null,
+                    "hour" => null,
+                    "minute" => null,
+                    "second" => null,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "--0412",
+                array(
+                    "year" => null,
+                    "month" => 4,
+                    "date" => 12,
+                    "hour" => null,
+                    "minute" => null,
+                    "second" => null,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "---12",
+                array(
+                    "year" => null,
+                    "month" => null,
+                    "date" => 12,
+                    "hour" => null,
+                    "minute" => null,
+                    "second" => null,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "T102200",
+                array(
+                    "year" => null,
+                    "month" => null,
+                    "date" => null,
+                    "hour" => 10,
+                    "minute" => 22,
+                    "second" => 0,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "T1022",
+                array(
+                    "year" => null,
+                    "month" => null,
+                    "date" => null,
+                    "hour" => 10,
+                    "minute" => 22,
+                    "second" => null,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "T10",
+                array(
+                    "year" => null,
+                    "month" => null,
+                    "date" => null,
+                    "hour" => 10,
+                    "minute" => null,
+                    "second" => null,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "T-2200",
+                array(
+                    "year" => null,
+                    "month" => null,
+                    "date" => null,
+                    "hour" => null,
+                    "minute" => 22,
+                    "second" => 00,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "T--00",
+                array(
+                    "year" => null,
+                    "month" => null,
+                    "date" => null,
+                    "hour" => null,
+                    "minute" => null,
+                    "second" => 00,
+                    "timezone" => null
+                ),
+            ),
+            array(
+                "T102200Z",
+                array(
+                    "year" => null,
+                    "month" => null,
+                    "date" => null,
+                    "hour" => 10,
+                    "minute" => 22,
+                    "second" => 00,
+                    "timezone" => 'Z'
+                ),
+            ),
+            array(
+                "T102200-0800",
+                array(
+                    "year" => null,
+                    "month" => null,
+                    "date" => null,
+                    "hour" => 10,
+                    "minute" => 22,
+                    "second" => 00,
+                    "timezone" => '-0800'
+                ),
+            ),
+
+            // extended format
+            array(
+                "2012-11-29T15:10:53Z",
+                array(
+                    "year" => 2012,
+                    "month" => 11,
+                    "date" => 29,
+                    "hour" => 15,
+                    "minute" => 10,
+                    "second" => 53,
+                    "timezone" => 'Z'
+                ),
+            ),
+        );
+
+    }
+
+
+}