dav: fix birthday calendar event generation for leap days

Fix generation of birthday calendar events for the 29th of February.

A recurring event for the 29th of February in the (default) Gregorian
calendar system would only generate instances in leap years. Fix this
behaviour by generating recurring events for the last day of February,
the 29th on leap years and the 28th otherwise.

Signed-off-by: Mattia Narducci <mattianarducci1@gmail.com>

2 files changed, 56 insertions, 56 deletions

diff --git a/apps/dav/lib/CalDAV/BirthdayService.php b/apps/dav/lib/CalDAV/BirthdayService.php
index df351a47552..70b2e859f89 100644
--- a/apps/dav/lib/CalDAV/BirthdayService.php
+++ b/apps/dav/lib/CalDAV/BirthdayService.php
@@ -207,33 +207,26 @@ class BirthdayService {
 		} catch (InvalidDataException $e) {
 			return null;
 		}
+		if ($dateParts['year'] !== null) {
+			$parameters = $birthday->parameters();
+			$omitYear = (isset($parameters['X-APPLE-OMIT-YEAR'])
+					&& $parameters['X-APPLE-OMIT-YEAR'] === $dateParts['year']);
+			// 'X-APPLE-OMIT-YEAR' is not always present, at least iOS 12.4 uses the hard coded date of 1604 (the start of the gregorian calendar) when the year is unknown
+			if ($omitYear || (int)$dateParts['year'] === 1604) {
+				$dateParts['year'] = null;
+			}
+		}
 
-		$unknownYear = false;
 		$originalYear = null;
-		if (!$dateParts['year']) {
-			$birthday = '1970-' . $dateParts['month'] . '-' . $dateParts['date'];
+		if ($dateParts['year'] !== null) {
+			$originalYear = (int)$dateParts['year'];
+		}
 
-			$unknownYear = true;
-		} else {
-			$parameters = $birthday->parameters();
-			if (isset($parameters['X-APPLE-OMIT-YEAR'])) {
-				$omitYear = $parameters['X-APPLE-OMIT-YEAR'];
-				if ($dateParts['year'] === $omitYear) {
-					$birthday = '1970-' . $dateParts['month'] . '-' . $dateParts['date'];
-					$unknownYear = true;
-				}
-			} else {
-				$originalYear = (int)$dateParts['year'];
-				// 'X-APPLE-OMIT-YEAR' is not always present, at least iOS 12.4 uses the hard coded date of 1604 (the start of the gregorian calendar) when the year is unknown
-				if ($originalYear == 1604) {
-					$originalYear = null;
-					$unknownYear = true;
-					$birthday = '1970-' . $dateParts['month'] . '-' . $dateParts['date'];
-				}
-				if ($originalYear < 1970) {
-					$birthday = '1970-' . $dateParts['month'] . '-' . $dateParts['date'];
-				}
-			}
+		$leapDay = ((int)$dateParts['month'] === 2
+				&& (int)$dateParts['date'] === 29);
+		if ($dateParts['year'] === null || $originalYear < 1970) {
+			$birthday = ($leapDay ? '1972-' : '1970-')
+				. $dateParts['month'] . '-' . $dateParts['date'];
 		}
 
 		try {
@@ -268,10 +261,15 @@ class BirthdayService {
 		$vEvent->DTEND['VALUE'] = 'DATE';
 		$vEvent->{'UID'} = $doc->UID . $postfix;
 		$vEvent->{'RRULE'} = 'FREQ=YEARLY';
+		if ($leapDay) {
+			/* Sabre\VObject supports BYMONTHDAY only if BYMONTH
+			 * is also set */
+			$vEvent->{'RRULE'} = 'FREQ=YEARLY;BYMONTH=2;BYMONTHDAY=-1';
+		}
 		$vEvent->{'SUMMARY'} = $summary;
 		$vEvent->{'TRANSP'} = 'TRANSPARENT';
 		$vEvent->{'X-NEXTCLOUD-BC-FIELD-TYPE'} = $dateField;
-		$vEvent->{'X-NEXTCLOUD-BC-UNKNOWN-YEAR'} = $unknownYear ? '1' : '0';
+		$vEvent->{'X-NEXTCLOUD-BC-UNKNOWN-YEAR'} = $dateParts['year'] === null ? '1' : '0';
 		if ($originalYear !== null) {
 			$vEvent->{'X-NEXTCLOUD-BC-YEAR'} = (string) $originalYear;
 		}
diff --git a/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php b/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php
index 6cca861f6cc..c3e27bf3dc9 100644
--- a/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php
+++ b/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php
@@ -78,13 +78,14 @@ class BirthdayServiceTest extends TestCase {
 	 * @dataProvider providesVCards
 	 * @param string $expectedSummary
 	 * @param string $expectedDTStart
+	 * @param string $expectedRrule
 	 * @param string $expectedFieldType
 	 * @param string $expectedUnknownYear
 	 * @param string $expectedOriginalYear
 	 * @param string|null $expectedReminder
 	 * @param string | null $data
 	 */
-	public function testBuildBirthdayFromContact($expectedSummary, $expectedDTStart, $expectedFieldType, $expectedUnknownYear, $expectedOriginalYear, $expectedReminder, $data, $fieldType, $prefix, $supports4Bytes, $configuredReminder): void {
+	public function testBuildBirthdayFromContact($expectedSummary, $expectedDTStart, $expectedRrule, $expectedFieldType, $expectedUnknownYear, $expectedOriginalYear, $expectedReminder, $data, $fieldType, $prefix, $supports4Bytes, $configuredReminder): void {
 		$this->dbConnection->method('supports4ByteText')->willReturn($supports4Bytes);
 		$cal = $this->service->buildDateFromContact($data, $fieldType, $prefix, $configuredReminder);
 
@@ -94,7 +95,7 @@ class BirthdayServiceTest extends TestCase {
 			$this->assertInstanceOf('Sabre\VObject\Component\VCalendar', $cal);
 			$this->assertEquals('-//IDN nextcloud.com//Birthday calendar//EN', $cal->PRODID->getValue());
 			$this->assertTrue(isset($cal->VEVENT));
-			$this->assertEquals('FREQ=YEARLY', $cal->VEVENT->RRULE->getValue());
+			$this->assertEquals($expectedRrule, $cal->VEVENT->RRULE->getValue());
 			$this->assertEquals($expectedSummary, $cal->VEVENT->SUMMARY->getValue());
 			$this->assertEquals($expectedDTStart, $cal->VEVENT->DTSTART->getValue());
 			$this->assertEquals($expectedFieldType, $cal->VEVENT->{'X-NEXTCLOUD-BC-FIELD-TYPE'}->getValue());
@@ -410,35 +411,36 @@ class BirthdayServiceTest extends TestCase {
 
 	public function providesVCards() {
 		return [
-			// $expectedSummary, $expectedDTStart, $expectedFieldType, $expectedUnknownYear, $expectedOriginalYear, $expectedReminder, $data, $fieldType, $prefix, $supports4Byte, $configuredReminder
-			[null, null, null, null, null, null, 'yasfewf', '', '', true, null],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:someday\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			['🎂 12345 (1900)', '19700101', 'BDAY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19000101\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			['🎂 12345 (1900)', '19701231', 'BDAY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			['Death of 12345 (1900)', '19701231', 'DEATHDATE', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nDEATHDATE:19001231\r\nEND:VCARD\r\n", 'DEATHDATE', '-death', true, null],
-			['Death of 12345 (1900)', '19701231', 'DEATHDATE', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nDEATHDATE:19001231\r\nEND:VCARD\r\n", 'DEATHDATE', '-death', false, null],
-			['💍 12345 (1900)', '19701231', 'ANNIVERSARY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nANNIVERSARY:19001231\r\nEND:VCARD\r\n", 'ANNIVERSARY', '-anniversary', true, null],
-			['12345 (⚭1900)', '19701231', 'ANNIVERSARY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nANNIVERSARY:19001231\r\nEND:VCARD\r\n", 'ANNIVERSARY', '-anniversary', false, null],
-			['🎂 12345', '19701231', 'BDAY', '1', null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:--1231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			['🎂 12345', '19701231', 'BDAY', '1', null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY;X-APPLE-OMIT-YEAR=1604:16041231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:;VALUE=text:circa 1800\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nN:12345;;;;\r\nBDAY:20031231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			['🎂 12345 (900)', '19701231', 'BDAY', '0', '900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:09001231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			['12345 (*1900)', '19700101', 'BDAY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19000101\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
-			['12345 (*1900)', '19701231', 'BDAY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
-			['12345 *', '19701231', 'BDAY', '1', null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:--1231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
-			['12345 *', '19701231', 'BDAY', '1', null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY;X-APPLE-OMIT-YEAR=1604:16041231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:;VALUE=text:circa 1800\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nN:12345;;;;\r\nBDAY:20031231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
-			['12345 (*900)', '19701231', 'BDAY', '0', '900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:09001231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
-			['12345 (*1900)', '19701231', 'BDAY', '0', '1900', 'PT9H', "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', false, 'PT9H'],
-			['12345 (*1900)', '19701231', 'BDAY', '0', '1900', '-PT15H', "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', false, '-PT15H'],
-			['12345 (*1900)', '19701231', 'BDAY', '0', '1900', '-P6DT15H', "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', false, '-P6DT15H'],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19000101\r\nX-NC-EXCLUDE-FROM-BIRTHDAY-CALENDAR;TYPE=boolean:true\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nX-NC-EXCLUDE-FROM-BIRTHDAY-CALENDAR;TYPE=boolean:true\r\nDEATHDATE:19001231\r\nEND:VCARD\r\n", 'DEATHDATE', '-death', true, null],
-			[null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nANNIVERSARY:19001231\r\nX-NC-EXCLUDE-FROM-BIRTHDAY-CALENDAR;TYPE=boolean:true\r\nEND:VCARD\r\n", 'ANNIVERSARY', '-anniversary', true, null],
+			// $expectedSummary, $expectedDTStart, $expectedRrule, $expectedFieldType, $expectedUnknownYear, $expectedOriginalYear, $expectedReminder, $data, $fieldType, $prefix, $supports4Byte, $configuredReminder
+			[null, null, null, null, null, null, null, 'yasfewf', '', '', true, null],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:someday\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			['🎂 12345 (1900)', '19700101', 'FREQ=YEARLY', 'BDAY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19000101\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			['🎂 12345 (1900)', '19701231', 'FREQ=YEARLY', 'BDAY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			['Death of 12345 (1900)', '19701231', 'FREQ=YEARLY', 'DEATHDATE', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nDEATHDATE:19001231\r\nEND:VCARD\r\n", 'DEATHDATE', '-death', true, null],
+			['Death of 12345 (1900)', '19701231', 'FREQ=YEARLY', 'DEATHDATE', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nDEATHDATE:19001231\r\nEND:VCARD\r\n", 'DEATHDATE', '-death', false, null],
+			['💍 12345 (1900)', '19701231', 'FREQ=YEARLY', 'ANNIVERSARY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nANNIVERSARY:19001231\r\nEND:VCARD\r\n", 'ANNIVERSARY', '-anniversary', true, null],
+			['12345 (⚭1900)', '19701231', 'FREQ=YEARLY', 'ANNIVERSARY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nANNIVERSARY:19001231\r\nEND:VCARD\r\n", 'ANNIVERSARY', '-anniversary', false, null],
+			['🎂 12345', '19701231', 'FREQ=YEARLY', 'BDAY', '1', null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:--1231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			['🎂 12345', '19701231', 'FREQ=YEARLY', 'BDAY', '1', null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY;X-APPLE-OMIT-YEAR=1604:16041231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:;VALUE=text:circa 1800\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nN:12345;;;;\r\nBDAY:20031231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			['🎂 12345 (900)', '19701231', 'FREQ=YEARLY', 'BDAY', '0', '900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:09001231\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			['12345 (*1900)', '19700101', 'FREQ=YEARLY', 'BDAY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19000101\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
+			['12345 (*1900)', '19701231', 'FREQ=YEARLY', 'BDAY', '0', '1900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
+			['12345 *', '19701231', 'FREQ=YEARLY', 'BDAY', '1', null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:--1231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
+			['12345 *', '19701231', 'FREQ=YEARLY', 'BDAY', '1', null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY;X-APPLE-OMIT-YEAR=1604:16041231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:;VALUE=text:circa 1800\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nN:12345;;;;\r\nBDAY:20031231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
+			['12345 (*900)', '19701231', 'FREQ=YEARLY', 'BDAY', '0', '900', null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:09001231\r\nEND:VCARD\r\n", 'BDAY', '', false, null],
+			['12345 (*1900)', '19701231', 'FREQ=YEARLY', 'BDAY', '0', '1900', 'PT9H', "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', false, 'PT9H'],
+			['12345 (*1900)', '19701231', 'FREQ=YEARLY', 'BDAY', '0', '1900', '-PT15H', "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', false, '-PT15H'],
+			['12345 (*1900)', '19701231', 'FREQ=YEARLY', 'BDAY', '0', '1900', '-P6DT15H', "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19001231\r\nEND:VCARD\r\n", 'BDAY', '', false, '-P6DT15H'],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19000101\r\nX-NC-EXCLUDE-FROM-BIRTHDAY-CALENDAR;TYPE=boolean:true\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nX-NC-EXCLUDE-FROM-BIRTHDAY-CALENDAR;TYPE=boolean:true\r\nDEATHDATE:19001231\r\nEND:VCARD\r\n", 'DEATHDATE', '-death', true, null],
+			[null, null, null, null, null, null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nANNIVERSARY:19001231\r\nX-NC-EXCLUDE-FROM-BIRTHDAY-CALENDAR;TYPE=boolean:true\r\nEND:VCARD\r\n", 'ANNIVERSARY', '-anniversary', true, null],
+			['🎂 12345 (1902)', '19720229', 'FREQ=YEARLY;BYMONTH=2;BYMONTHDAY=-1', 'BDAY', '0', null, null, "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nUID:12345\r\nFN:12345\r\nN:12345;;;;\r\nBDAY:19020229\r\nEND:VCARD\r\n", 'BDAY', '', true, null],
 		];
 	}
 }