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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 <QSignalSpy>
#include <QtTest>
#include "tagstrip.h"
/// The chip hit test.
///
/// Asserted on rects from chipRectAt(), which is the SAME function paintEvent
/// lays out from, so a drawn chip and a clickable chip cannot drift apart. Not
/// asserted by rendering: a pixel probe cannot tell a chip that is drawn from a
/// chip that is drawn and clickable, and both halves have been broken
/// independently in this project before.
class TestTagStrip : public QObject
{
Q_OBJECT
private slots:
void chipAtFindsEachVisibleTag();
void chipAtMissesTheGapAndTheEdges();
void chipAtIgnoresTheOverflowChip();
};
void TestTagStrip::chipAtFindsEachVisibleTag()
{
TagStrip strip;
strip.resize(600, 30);
strip.setTags({ QStringLiteral("inbox"), QStringLiteral("unread") });
const QStringList visible = strip.visibleTags();
QCOMPARE(visible.size(), 2);
// The guard: the geometry this test depends on must exist before the test
// can mean anything. A zero-width chip would make every lookup below miss
// and the test would pass for the wrong reason.
for (int i = 0; i < visible.size(); ++i) {
const QRect rect = strip.chipRectAt(i);
QVERIFY2(rect.width() > 0 && rect.height() > 0,
qPrintable(QStringLiteral("chip %1 has an empty rect").arg(i)));
QCOMPARE(strip.chipAt(rect.center()), visible.at(i));
}
}
void TestTagStrip::chipAtMissesTheGapAndTheEdges()
{
TagStrip strip;
strip.resize(600, 30);
strip.setTags({ QStringLiteral("inbox"), QStringLiteral("unread") });
QCOMPARE(strip.visibleTags().size(), 2);
const QRect first = strip.chipRectAt(0);
const QRect second = strip.chipRectAt(1);
QVERIFY2(second.left() > first.right() + 1,
"the two chips must not touch, or there is no gap to test");
// Between the chips: no tag, so no menu entry rather than the nearest one.
const QPoint gap((first.right() + second.left()) / 2, first.center().y());
QVERIFY(strip.chipAt(gap).isEmpty());
// Past the last chip, where the strip is empty space.
QVERIFY(strip.chipAt(QPoint(strip.width() - 1, first.center().y())).isEmpty());
}
void TestTagStrip::chipAtIgnoresTheOverflowChip()
{
// The +N chip stands for a LIST of tags, not for a tag, so there is no
// single value a search could be built from.
TagStrip strip;
strip.resize(90, 30);
strip.setTags({ QStringLiteral("inbox"), QStringLiteral("unread"),
QStringLiteral("flagged"), QStringLiteral("attachment"),
QStringLiteral("replied") });
QVERIFY2(!strip.hiddenTags().isEmpty(),
"the strip must actually overflow, or this asserts nothing");
QVERIFY2(!strip.visibleTags().isEmpty(),
"the strip must show at least one chip to test against");
// Every point across the strip either finds a VISIBLE tag or nothing. The
// overflow chip sits after the visible ones and must yield nothing.
for (int x = 0; x < strip.width(); x += 3) {
const QString found = strip.chipAt(QPoint(x, strip.height() / 2));
if (!found.isEmpty())
QVERIFY(strip.visibleTags().contains(found));
}
const QRect last = strip.chipRectAt(strip.visibleTags().size() - 1);
QVERIFY(strip.chipAt(QPoint(last.right() + 5, strip.height() / 2)).isEmpty());
}
QTEST_MAIN(TestTagStrip)
#include "test_tagstrip.moc"
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