tests/: Add basic iCal import tests

Tests ical-002.sh and ical-003.sh currently fail due to bugs in duration
and exception parsing.

Reported-by: Håkan Jerning <jerning@home.se>
Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

test/data/ical-001.ical

@@ -0,0 +1,12 @@
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+DTSTART:19020101T000100
+DURATION:P1DT9H17M0S
+SUMMARY:Calibrator's
+END:VEVENT
+BEGIN:VTODO
+PRIORITY:1
+SUMMARY:Nary parabled Louvre's fleetest mered
+END:VTODO
+END:VCALENDAR

test/data/ical-002.ical

@@ -0,0 +1,28 @@
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+DTSTART:20000101T000000
+DURATION:P1DT0H0M0S
+SUMMARY:One day
+END:VEVENT
+BEGIN:VEVENT
+DTSTART:20000101T000000
+DURATION:P1DT1H1M1S
+SUMMARY:One day, one hour, one minute and one second
+END:VEVENT
+BEGIN:VEVENT
+DTSTART:20000101T000000
+DURATION:PT1H1M1S
+SUMMARY:One hour, one minute and one second
+END:VEVENT
+BEGIN:VEVENT
+DTSTART:20000101T000000
+DURATION:PT1M1S
+SUMMARY:One minute and one second
+END:VEVENT
+BEGIN:VEVENT
+DTSTART:20000101T000000
+DURATION:PT1S
+SUMMARY:One second
+END:VEVENT
+END:VCALENDAR

test/data/ical-003.ical

@@ -0,0 +1,25 @@
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+DTSTART:20000101T000000
+DURATION:PT1H30M0S
+RRULE:FREQ=DAILY;INTERVAL=2;UNTIL=20000201T000000;WKST=SU
+EXDATE:20000115T000000,20000123T000000
+SUMMARY:Recurring appointment
+END:VEVENT
+BEGIN:VEVENT
+DTSTART:20000101T000000
+DURATION:PT1H30M0S
+RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20000201T000000;WKST=SU
+EXDATE:20000122T000000
+SUMMARY:Weekly appointment
+END:VEVENT
+BEGIN:VEVENT
+DTSTART:20000201T000000
+DURATION:PT1H30M0S
+RRULE:FREQ=DAILY;INTERVAL=2;UNTIL=20000301T000000;WKST=SU
+EXDATE:20000215T000000
+EXDATE:20000223T000000
+SUMMARY:Recurring appointment
+END:VEVENT
+END:VCALENDAR