##
# Copyright (c) 2005-2007 Apple Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
##

from twistedcaldav.ical import Component
import twistedcaldav.test.util
from twistedcaldav.scheduling.implicit import ImplicitScheduler
from dateutil.tz import tzutc
from twisted.web2.dav import davxml
import datetime

class Implicit (twistedcaldav.test.util.TestCase):
    """
    iCalendar support tests
    """

    def test_removed_attendees(self):
        
        data = (
            (
                "#1.1 Simple component, no change",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
END:VEVENT
END:VCALENDAR
""",
                (),
            ),
            (
                "#1.2 Simple component, one removal",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
END:VEVENT
END:VCALENDAR
""",
                (("mailto:user2@example.com", None),),
            ),
            (
                "#1.3 Simple component, two removals",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user2@example.com", None),
                    ("mailto:user3@example.com", None),
                ),
            ),
            (
                "#2.1 Simple recurring component, two removals",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user2@example.com", None),
                    ("mailto:user3@example.com", None),
                ),
            ),
            (
                "#2.2 Simple recurring component, add exdate",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
EXDATE:20080801T120000Z
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user1@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user2@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user3@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                ),
            ),
            (
                "#2.3 Simple recurring component, add multiple comma exdates",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
EXDATE:20080801T120000Z,20080901T120000Z
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user1@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user2@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user3@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user1@example.com", datetime.datetime(2008, 9, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user2@example.com", datetime.datetime(2008, 9, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user3@example.com", datetime.datetime(2008, 9, 1, 12, 0, 0, tzinfo=tzutc())),
                ),
            ),
            (
                "#2.3 Simple recurring component, add multiple comma/property exdates",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
EXDATE:20080801T120000Z,20080901T120000Z
EXDATE:20081201T120000Z
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user1@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user2@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user3@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user1@example.com", datetime.datetime(2008, 9, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user2@example.com", datetime.datetime(2008, 9, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user3@example.com", datetime.datetime(2008, 9, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user1@example.com", datetime.datetime(2008, 12, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user2@example.com", datetime.datetime(2008, 12, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user3@example.com", datetime.datetime(2008, 12, 1, 12, 0, 0, tzinfo=tzutc())),
                ),
            ),
            (
                "#3.1 Complex recurring component with same attendees, no change",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
END:VEVENT
END:VCALENDAR
""",
                (),
            ),
            (
                "#3.2 Complex recurring component with same attendees, change master/override",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user3@example.com", None),
                    ("mailto:user3@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                ),
            ),
            (
                "#3.3 Complex recurring component with same attendees, change override",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user3@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                ),
            ),
            (
                "#3.4 Complex recurring component with same attendees, change master",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user3@example.com", None),
                ),
            ),
            (
                "#3.5 Complex recurring component with same attendees, remove override - no exdate",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
END:VCALENDAR
""",
                (),
            ),
            (
                "#3.6 Complex recurring component with same attendees, remove override - exdate",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
EXDATE:20080801T120000Z
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user1@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user2@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user3@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                ),
            ),
            (
                "#4.1 Complex recurring component with different attendees, change master/override",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user4@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user3@example.com", None),
                    ("mailto:user4@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                ),
            ),
            (
                "#4.2 Complex recurring component with different attendees, remove override - no exdate",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user4@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user4@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                ),
            ),
            (
                "#4.3 Complex recurring component with different attendees, remove override - exdate",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
END:VEVENT
BEGIN:VEVENT
UID:12345-67890
RECURRENCE-ID:20080801T120000Z
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user4@example.com
END:VEVENT
END:VCALENDAR
""",
                """BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CALENDARSERVER.ORG//NONSGML Version 1//EN
BEGIN:VEVENT
UID:12345-67890
DTSTART:20080601T120000Z
DTEND:20080601T130000Z
ORGANIZER;CN="User 01":mailto:user1@example.com
ATTENDEE:mailto:user1@example.com
ATTENDEE:mailto:user2@example.com
ATTENDEE:mailto:user3@example.com
RRULE:FREQ=MONTHLY
EXDATE:20080801T120000Z
END:VEVENT
END:VCALENDAR
""",
                (
                    ("mailto:user1@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user2@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                    ("mailto:user4@example.com", datetime.datetime(2008, 8, 1, 12, 0, 0, tzinfo=tzutc())),
                ),
            ),
        )

        class TestResource(object):
            def currentPrincipal(self, request):
                return davxml.Principal(davxml.Unauthenticated)

        resource = TestResource()

        for description, calendar1, calendar2, result in data:
            scheduler = ImplicitScheduler()
            scheduler.resource = resource
            scheduler.request = None
            scheduler.oldcalendar = Component.fromString(calendar1)
            scheduler.calendar = Component.fromString(calendar2)
            scheduler.extractCalendarData()
            scheduler.findRemovedAttendees()
#            if not description.startswith("#4.3"):
#                continue
#            print description
#            print scheduler.cancelledAttendees
#            print set(result)
            self.assertEqual(scheduler.cancelledAttendees, set(result), msg=description)