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/*
* qtmaildir - a Qt6 mail client for notmuch-indexed Maildirs
* Copyright (C) 2026 Danilo M. <danix@danix.xyz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <QtTest>
#include <QDir>
#include <QFile>
#include <QFileInfo>
#include <QTemporaryDir>
#include <QTimeZone>
#include "calendarstore.h"
namespace {
/// Wraps VEVENT lines (and optional extra components) into a VCALENDAR.
QByteArray ics(const QString &body)
{
return QStringLiteral("BEGIN:VCALENDAR\r\nVERSION:2.0\r\n"
"PRODID:-//example//test//EN\r\n%1END:VCALENDAR\r\n")
.arg(body).toUtf8();
}
QString vevent(const QString &lines)
{
return QStringLiteral("BEGIN:VEVENT\r\n%1END:VEVENT\r\n").arg(lines);
}
const char *kRomeVtimezone =
"BEGIN:VTIMEZONE\r\nTZID:Europe/Rome\r\n"
"BEGIN:DAYLIGHT\r\nTZOFFSETFROM:+0100\r\nTZOFFSETTO:+0200\r\nTZNAME:CEST\r\n"
"DTSTART:19700329T020000\r\nRRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU\r\nEND:DAYLIGHT\r\n"
"BEGIN:STANDARD\r\nTZOFFSETFROM:+0200\r\nTZOFFSETTO:+0100\r\nTZNAME:CET\r\n"
"DTSTART:19701025T030000\r\nRRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU\r\nEND:STANDARD\r\n"
"END:VTIMEZONE\r\n";
CalEvent parse(const QString &body, bool *unknown = nullptr)
{
bool ignored = false;
return CalendarStore::parseEvent(ics(body), QStringLiteral("/x/e.ics"),
QStringLiteral("x"), unknown ? unknown : &ignored);
}
void writeFile(const QString &path, const QByteArray &content)
{
QDir().mkpath(QFileInfo(path).absolutePath());
QFile file(path);
QVERIFY2(file.open(QIODevice::WriteOnly | QIODevice::Truncate),
qPrintable(file.errorString()));
file.write(content);
}
} // namespace
class TestCalendarStore : public QObject
{
Q_OBJECT
private slots:
void parsesAUtcEvent();
void readsATzidWithItsVtimezone();
void readsATzidWithoutAVtimezoneAsIana();
void readsAnUnknownTzidAsLocalAndSaysSo();
void readsFloatingTimeAsLocal();
void readsAnAllDayEventWithAnExclusiveEnd();
void loadReadsCollectionsAndFallsBack();
void loadSkipsAndCountsABrokenFile();
};
void TestCalendarStore::parsesAUtcEvent()
{
bool unknownZone = true;
const CalEvent event = CalendarStore::parseEvent(
ics(vevent(QStringLiteral(
"UID:utc-1@example.org\r\nDTSTAMP:20260901T000000Z\r\n"
"SUMMARY:Standup\r\nLOCATION:Room 2\r\n"
"DTSTART:20260922T080000Z\r\nDTEND:20260922T081500Z\r\n"
"SEQUENCE:3\r\n"))),
QStringLiteral("/tmp/x/utc-1.ics"), QStringLiteral("x"), &unknownZone);
QCOMPARE(event.uid, QStringLiteral("utc-1@example.org"));
QCOMPARE(event.summary, QStringLiteral("Standup"));
QCOMPARE(event.location, QStringLiteral("Room 2"));
QCOMPARE(event.start, QDateTime(QDate(2026, 9, 22), QTime(8, 0), QTimeZone::utc()));
QCOMPARE(event.end, QDateTime(QDate(2026, 9, 22), QTime(8, 15), QTimeZone::utc()));
QVERIFY(!event.allDay);
QCOMPARE(event.sequence, 3);
QCOMPARE(event.filePath, QStringLiteral("/tmp/x/utc-1.ics"));
QVERIFY(!unknownZone);
QVERIFY(!event.rawText.isEmpty());
}
void TestCalendarStore::readsATzidWithItsVtimezone()
{
const CalEvent e = parse(QString::fromLatin1(kRomeVtimezone) + vevent(QStringLiteral(
"UID:a@example.org\r\nDTSTART;TZID=Europe/Rome:20260922T100000\r\n"
"DTEND;TZID=Europe/Rome:20260922T110000\r\n")));
// 10:00 in Rome in September is 08:00 UTC (CEST, +2).
QCOMPARE(e.start.toUTC(), QDateTime(QDate(2026, 9, 22), QTime(8, 0), QTimeZone::utc()));
QCOMPARE(e.end.toUTC(), QDateTime(QDate(2026, 9, 22), QTime(9, 0), QTimeZone::utc()));
}
void TestCalendarStore::readsATzidWithoutAVtimezoneAsIana()
{
// 120 of the user's 312 files are shaped like this: RFC 5545 requires the
// VTIMEZONE, and real servers omit it.
bool unknown = true;
const CalEvent e = parse(vevent(QStringLiteral(
"UID:b@example.org\r\nDTSTART;TZID=Europe/Rome:20260922T100000\r\n"
"DTEND;TZID=Europe/Rome:20260922T110000\r\n")), &unknown);
QCOMPARE(e.start.toUTC(), QDateTime(QDate(2026, 9, 22), QTime(8, 0), QTimeZone::utc()));
QVERIFY(!unknown);
}
void TestCalendarStore::readsAnUnknownTzidAsLocalAndSaysSo()
{
bool unknown = false;
const CalEvent e = parse(vevent(QStringLiteral(
"UID:c@example.org\r\nDTSTART;TZID=Not A Zone:20260922T100000\r\n"
"DTEND;TZID=Not A Zone:20260922T110000\r\n")), &unknown);
QVERIFY(unknown);
QCOMPARE(e.start, QDateTime(QDate(2026, 9, 22), QTime(10, 0)));
}
void TestCalendarStore::readsFloatingTimeAsLocal()
{
const CalEvent e = parse(vevent(QStringLiteral(
"UID:d@example.org\r\nDTSTART:20260922T100000\r\nDTEND:20260922T110000\r\n")));
QCOMPARE(e.start, QDateTime(QDate(2026, 9, 22), QTime(10, 0)));
QCOMPARE(e.start.timeSpec(), Qt::LocalTime);
}
void TestCalendarStore::readsAnAllDayEventWithAnExclusiveEnd()
{
const CalEvent e = parse(vevent(QStringLiteral(
"UID:e@example.org\r\nDTSTART;VALUE=DATE:20260924\r\nDTEND;VALUE=DATE:20260925\r\n")));
QVERIFY(e.allDay);
QCOMPARE(e.start.date(), QDate(2026, 9, 24));
// Exclusive: a one-day event on the 24th ends at the START of the 25th.
QCOMPARE(e.end.date(), QDate(2026, 9, 25));
QCOMPARE(e.end.time(), QTime(0, 0));
}
void TestCalendarStore::loadReadsCollectionsAndFallsBack()
{
QTemporaryDir dir;
const QString root = dir.path();
writeFile(root + QStringLiteral("/52/displayname"), "Work");
writeFile(root + QStringLiteral("/52/color"), "#60a5fa\n");
writeFile(root + QStringLiteral("/52/one.ics"), ics(vevent(QStringLiteral(
"UID:one@example.org\r\nDTSTART:20260922T080000Z\r\n"))));
writeFile(root + QStringLiteral("/31/two.ics"), ics(vevent(QStringLiteral(
"UID:two@example.org\r\nDTSTART:20260923T080000Z\r\n"))));
writeFile(root + QStringLiteral("/31/notes.txt"), "not a calendar file");
const LoadResult r = CalendarStore::load(root);
QCOMPARE(r.collections.size(), 2);
QCOMPARE(r.events.size(), 2);
QCOMPARE(r.unparsable, 0);
// Sorted by display name, so "31" (no displayname) sorts before "Work".
QCOMPARE(r.collections[0].dir, QStringLiteral("31"));
QCOMPARE(r.collections[0].displayName, QStringLiteral("31"));
QVERIFY(r.collections[0].color.isValid());
QCOMPARE(r.collections[1].displayName, QStringLiteral("Work"));
QCOMPARE(r.collections[1].color, QColor(QStringLiteral("#60a5fa")));
QVERIFY(!r.collections[1].readOnly);
// The hashed fallback is stable across loads, or colours would shuffle.
QCOMPARE(CalendarStore::load(root).collections[0].color, r.collections[0].color);
}
void TestCalendarStore::loadSkipsAndCountsABrokenFile()
{
QTemporaryDir dir;
writeFile(dir.path() + QStringLiteral("/c/good.ics"), ics(vevent(QStringLiteral(
"UID:good@example.org\r\nDTSTART:20260922T080000Z\r\n"))));
writeFile(dir.path() + QStringLiteral("/c/bad.ics"), "this is not iCalendar");
const LoadResult r = CalendarStore::load(dir.path());
QCOMPARE(r.events.size(), 1);
QCOMPARE(r.unparsable, 1);
}
QTEST_MAIN(TestCalendarStore)
#include "test_calendarstore.moc"
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