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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 "maildirname.h"
#include <QSet>
#include <QTest>
class TestMaildirName : public QObject
{
Q_OBJECT
private slots:
void aFreshNameIsUniquePerCall();
void theFlagSuffixIsPreserved();
void anEmptyFlagSuffixIsPreserved();
void aNameWithNoSuffixGetsNone();
void theUidInfixIsNotCarriedAcross();
};
// Two messages written in the same second must not collide, which a
// timestamp alone does not guarantee, and that is what the counter is for.
void TestMaildirName::aFreshNameIsUniquePerCall()
{
QSet<QString> names;
for (int i = 0; i < 100; ++i)
names.insert(MaildirName::fresh(QStringLiteral("1234.M1P1Q1.host")));
QVERIFY2(names.size() == 100,
qPrintable(QStringLiteral("expected 100 unique names, got %1")
.arg(names.size())));
}
// The flags say whether a message is read, flagged or draft, and losing them
// on a move silently marks mail unread again.
void TestMaildirName::theFlagSuffixIsPreserved()
{
const QString name = MaildirName::fresh(QStringLiteral("1234.M1P1Q1.host:2,FS"));
QVERIFY2(name.endsWith(QStringLiteral(":2,FS")),
qPrintable(QStringLiteral("generated name did not preserve flags: %1")
.arg(name)));
}
// `:2,` with no flags is not the same as no suffix at all, it says the flags
// are known and empty.
void TestMaildirName::anEmptyFlagSuffixIsPreserved()
{
const QString name = MaildirName::fresh(QStringLiteral("1234.M1P1Q1.host:2,"));
QVERIFY2(name.endsWith(QStringLiteral(":2,")),
qPrintable(QStringLiteral("generated name did not preserve empty flag suffix: %1")
.arg(name)));
}
// A suffix must not be invented.
void TestMaildirName::aNameWithNoSuffixGetsNone()
{
const QString name = MaildirName::fresh(QStringLiteral("1234.M1P1Q1.host"));
QVERIFY2(!name.contains(QStringLiteral(":2,")),
qPrintable(QStringLiteral("generated name invented a flag suffix: %1")
.arg(name)));
}
// This is the reason the function exists; carrying mbsync's `,U=` infix
// across a folder boundary produced "Maildir error: duplicate UID" on real
// mail.
void TestMaildirName::theUidInfixIsNotCarriedAcross()
{
const QString name = MaildirName::fresh(QStringLiteral("1234.M1P1Q1.host,U=42:2,S"));
QVERIFY2(!name.contains(QStringLiteral("U=42")),
qPrintable(QStringLiteral("generated name carried the UID infix across: %1")
.arg(name)));
QVERIFY2(name.endsWith(QStringLiteral(":2,S")),
qPrintable(QStringLiteral("generated name did not preserve flags: %1")
.arg(name)));
}
QTEST_MAIN(TestMaildirName)
#include "test_maildirname.moc"
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