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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 "repeatrule.h"
class TestRepeatRule : public QObject
{
Q_OBJECT
private slots:
void roundTripsEveryRowOfTheTable_data();
void roundTripsEveryRowOfTheTable();
void fillsWhatAnRruleLeavesImplicit();
void anEmptyRruleMeansDoesNotRepeat();
void recognisesACustomRule_data();
void recognisesACustomRule();
void keepsWkst();
void readsUntilInEveryForm();
void describesInWords();
};
void TestRepeatRule::roundTripsEveryRowOfTheTable_data()
{
QTest::addColumn<QString>("rrule");
// Each row of the spec's repeat table, written the way toRRule writes it.
QTest::newRow("daily") << QStringLiteral("FREQ=DAILY");
QTest::newRow("every 3 days") << QStringLiteral("FREQ=DAILY;INTERVAL=3");
QTest::newRow("weekly on days") << QStringLiteral("FREQ=WEEKLY;BYDAY=MO,WE,FR");
QTest::newRow("monthly on day") << QStringLiteral("FREQ=MONTHLY;BYMONTHDAY=18");
QTest::newRow("monthly last friday") << QStringLiteral("FREQ=MONTHLY;BYDAY=-1FR");
QTest::newRow("monthly 2nd tuesday") << QStringLiteral("FREQ=MONTHLY;INTERVAL=2;BYDAY=2TU");
QTest::newRow("yearly") << QStringLiteral("FREQ=YEARLY");
QTest::newRow("yearly last fri of sep") << QStringLiteral("FREQ=YEARLY;BYMONTH=9;BYDAY=-1FR");
QTest::newRow("count") << QStringLiteral("FREQ=MONTHLY;BYMONTHDAY=18;COUNT=12");
QTest::newRow("until date") << QStringLiteral("FREQ=YEARLY;UNTIL=20301231");
}
void TestRepeatRule::roundTripsEveryRowOfTheTable()
{
QFETCH(QString, rrule);
const QDate start(2026, 9, 18);
const RepeatRule rule = RepeatRule::fromRRule(rrule, start);
QVERIFY2(!rule.custom, qPrintable(rrule));
// UNTIL in the "until date" row is a DATE, so the all-day form (no suffix).
QCOMPARE(rule.toRRule(rule.end == RepeatRule::End::Until
? rule.until.toString(QStringLiteral("yyyyMMdd"))
: QString()),
rrule);
QCOMPARE(RepeatRule::fromRRule(rule.toRRule(rule.until.toString(QStringLiteral("yyyyMMdd"))),
start), rule);
}
void TestRepeatRule::fillsWhatAnRruleLeavesImplicit()
{
// 2026-09-18 is a Friday.
const RepeatRule weekly = RepeatRule::fromRRule(QStringLiteral("FREQ=WEEKLY"), QDate(2026, 9, 18));
QCOMPARE(weekly.weekdays, QList<int>{ Qt::Friday });
const RepeatRule monthly = RepeatRule::fromRRule(QStringLiteral("FREQ=MONTHLY"), QDate(2026, 9, 18));
QCOMPARE(monthly.by, RepeatRule::By::MonthDay);
QCOMPARE(monthly.monthDay, 18);
}
void TestRepeatRule::anEmptyRruleMeansDoesNotRepeat()
{
const QDate start(2026, 9, 18);
for (const QString &value : { QString(), QStringLiteral(""), QStringLiteral(" ") }) {
const RepeatRule rule = RepeatRule::fromRRule(value, start);
QCOMPARE(rule.freq, RepeatRule::Freq::None);
QVERIFY(!rule.custom);
QCOMPARE(rule.describe(), QStringLiteral("Does not repeat"));
QCOMPARE(rule.toRRule(), QString());
}
}
void TestRepeatRule::recognisesACustomRule_data()
{
QTest::addColumn<QString>("rrule");
QTest::newRow("bysetpos") << QStringLiteral("FREQ=MONTHLY;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=-1");
QTest::newRow("byweekno") << QStringLiteral("FREQ=YEARLY;BYWEEKNO=20");
QTest::newRow("hourly") << QStringLiteral("FREQ=HOURLY");
QTest::newRow("two months") << QStringLiteral("FREQ=YEARLY;BYMONTH=3,9;BYDAY=-1FR");
QTest::newRow("two monthdays") << QStringLiteral("FREQ=MONTHLY;BYMONTHDAY=1,15");
QTest::newRow("weekly ordinal") << QStringLiteral("FREQ=WEEKLY;BYDAY=1MO");
QTest::newRow("fifth monday") << QStringLiteral("FREQ=MONTHLY;BYDAY=5MO");
}
void TestRepeatRule::recognisesACustomRule()
{
QFETCH(QString, rrule);
const RepeatRule rule = RepeatRule::fromRRule(rrule, QDate(2026, 9, 18));
QVERIFY(rule.custom);
// An edit never rewrites a custom rule: it comes back exactly.
QCOMPARE(rule.toRRule(), rrule);
}
void TestRepeatRule::keepsWkst()
{
const RepeatRule rule = RepeatRule::fromRRule(QStringLiteral("FREQ=YEARLY;WKST=TU"), QDate(2026, 9, 18));
QVERIFY(!rule.custom);
QCOMPARE(rule.toRRule(), QStringLiteral("FREQ=YEARLY;WKST=TU"));
}
void TestRepeatRule::readsUntilInEveryForm()
{
const QDate start(2026, 9, 18);
QCOMPARE(RepeatRule::fromRRule(QStringLiteral("FREQ=DAILY;UNTIL=20261231"), start).until,
QDate(2026, 12, 31));
QCOMPARE(RepeatRule::fromRRule(QStringLiteral("FREQ=DAILY;UNTIL=20261231T120000"), start).until,
QDate(2026, 12, 31));
// A UTC UNTIL keeps its UTC date: the caller writes 23:59:59 local as UTC,
// which in a zone east of UTC is still the same date.
QCOMPARE(RepeatRule::fromRRule(QStringLiteral("FREQ=DAILY;UNTIL=20261231T215959Z"), start).until,
QDate(2026, 12, 31));
QCOMPARE(RepeatRule::fromRRule(QStringLiteral("FREQ=DAILY;UNTIL=20261231"), start).end,
RepeatRule::End::Until);
}
void TestRepeatRule::describesInWords()
{
QLocale::setDefault(QLocale::c());
const QDate start(2026, 9, 18);
QCOMPARE(RepeatRule::fromRRule(QStringLiteral("FREQ=DAILY"), start).describe(),
QStringLiteral("Daily"));
QCOMPARE(RepeatRule::fromRRule(QStringLiteral("FREQ=MONTHLY;BYDAY=-1FR"), start).describe(),
QStringLiteral("Monthly, on the last Friday"));
QCOMPARE(RepeatRule::fromRRule(QStringLiteral("FREQ=MONTHLY;BYMONTHDAY=18;COUNT=12"), start).describe(),
QStringLiteral("Monthly, on day 18, 12 times"));
QCOMPARE(RepeatRule::fromRRule(QStringLiteral("FREQ=YEARLY;BYMONTH=9;BYDAY=-1FR"), start).describe(),
QStringLiteral("Yearly, on the last Friday of September"));
QCOMPARE(RepeatRule::fromRRule(QStringLiteral("FREQ=YEARLY;BYWEEKNO=20"), start).describe(),
QStringLiteral("Custom rule"));
}
QTEST_MAIN(TestRepeatRule)
#include "test_repeatrule.moc"
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