/*
    This file is part of the KDE Libraries

    Copyright (C) 2006 Pino Toscano <toscano.pino@tiscali.it>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB. If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#include <QTest>

#include <QTestEvent>

#include <QList>
#include <QRadioButton>
#include <QSignalSpy>
#include <QBoxLayout>

#include "kbuttongrouptest.h"
#include "kbuttongroup.h"

KButtonGroup *kbuttongroup;
QList<QRadioButton *> buttons;

void KButtonGroupTest::initTestCase()
{
    kbuttongroup = new KButtonGroup();
    QVBoxLayout *lay2 = new QVBoxLayout(kbuttongroup);

    for (int i = 0; i < 8; ++i) {
        QRadioButton *r = new QRadioButton(kbuttongroup);
        r->setText(QString("radio%1").arg(i));
        lay2->addWidget(r);
        buttons << r;
    }

    QCOMPARE(kbuttongroup->selected(), -1);
}

void KButtonGroupTest::directSelectionTestCase()
{
    // test where setSelected is called before the
    // ensurePolished() is called.
    KButtonGroup *kbuttongroup2 = new KButtonGroup();
    kbuttongroup2->setSelected(3);

    QVBoxLayout *lay2 = new QVBoxLayout(kbuttongroup2);
    for (int i = 0; i < 8; ++i) {
        QRadioButton *r = new QRadioButton(kbuttongroup2);
        r->setText(QString("radio%1").arg(i));
        lay2->addWidget(r);
        buttons << r;
    }

    QTest::qWait(250); // events should occur.
    QCOMPARE(kbuttongroup2->selected(), 3);
}

void KButtonGroupTest::cleanupTestCase()
{
    kbuttongroup->deleteLater();
}

void KButtonGroupTest::testEmptyGroup()
{
    KButtonGroup kemptybuttongroup;
    QCOMPARE(kemptybuttongroup.selected(), -1);

    kemptybuttongroup.setSelected(5);
    QCOMPARE(kemptybuttongroup.selected(), -1);

    QRadioButton radio1("Radio button 1");
    QCOMPARE(kemptybuttongroup.id(&radio1), -1);
}

void KButtonGroupTest::testId()
{
    QCOMPARE(kbuttongroup->id(buttons[1]), 1);
}

void KButtonGroupTest::testClicks()
{
    QTest::mouseClick(buttons[3], Qt::LeftButton, nullptr, QPoint(), 10);
    QCOMPARE(kbuttongroup->selected(), 3);

    QTest::mouseClick(buttons[5], Qt::LeftButton, nullptr, QPoint(), 10);
    QCOMPARE(kbuttongroup->selected(), 5);

    QTest::mouseClick(buttons[7], Qt::LeftButton, nullptr, QPoint(), 10);
    QCOMPARE(kbuttongroup->selected(), 7);

    QTest::mouseClick(buttons[1], Qt::LeftButton, nullptr, QPoint(), 10);
    QCOMPARE(kbuttongroup->selected(), 1);

    // QRadioButton's react only to LMB click events
    QTest::mouseClick(buttons[5], Qt::RightButton, nullptr, QPoint(), 10);
    QCOMPARE(kbuttongroup->selected(), 1);
    QTest::mouseClick(buttons[5], Qt::MidButton, nullptr, QPoint(), 10);
    QCOMPARE(kbuttongroup->selected(), 1);
}

void KButtonGroupTest::testManualSelection()
{
    kbuttongroup->setSelected(3);
    QCOMPARE(kbuttongroup->selected(), 3);

    kbuttongroup->setSelected(0);
    QCOMPARE(kbuttongroup->selected(), 0);

    kbuttongroup->setSelected(7);
    QCOMPARE(kbuttongroup->selected(), 7);

    kbuttongroup->setSelected(2);
    QCOMPARE(kbuttongroup->selected(), 2);

    // "bad" cases: ask for an invalid id -- the selection should not change
    kbuttongroup->setSelected(10);
    QCOMPARE(kbuttongroup->selected(), 2);
    kbuttongroup->setSelected(-1);
    QCOMPARE(kbuttongroup->selected(), 2);
}

void KButtonGroupTest::testSignals()
{
    QSignalSpy spyClicked(kbuttongroup, SIGNAL(clicked(int)));
    QSignalSpy spyPressed(kbuttongroup, SIGNAL(pressed(int)));
    QSignalSpy spyReleased(kbuttongroup, SIGNAL(released(int)));
    QSignalSpy spyChanged(kbuttongroup, SIGNAL(changed(int)));

    QTest::mouseClick(buttons[2], Qt::LeftButton, nullptr, QPoint(), 10);
    QCOMPARE(spyClicked.count(), 1);
    QCOMPARE(spyPressed.count(), 1);
    QCOMPARE(spyReleased.count(), 1);
    QCOMPARE(spyChanged.count(), 1);
    QList<QVariant> args = spyClicked.last();
    QList<QVariant> args2 = spyPressed.last();
    QList<QVariant> args3 = spyReleased.last();
    QCOMPARE(args.first().toInt(), 2);
    QCOMPARE(args2.first().toInt(), 2);
    QCOMPARE(args3.first().toInt(), 2);
    QCOMPARE(kbuttongroup->selected(), 2);

    QTest::mouseClick(buttons[6], Qt::LeftButton, nullptr, QPoint(), 10);
    QCOMPARE(spyClicked.count(), 2);
    QCOMPARE(spyPressed.count(), 2);
    QCOMPARE(spyReleased.count(), 2);
    QCOMPARE(spyChanged.count(), 2);
    args = spyClicked.last();
    args2 = spyPressed.last();
    args3 = spyReleased.last();
    QCOMPARE(args.first().toInt(), 6);
    QCOMPARE(args2.first().toInt(), 6);
    QCOMPARE(args3.first().toInt(), 6);
    QCOMPARE(kbuttongroup->selected(), 6);

    // click with RMB on a radio -> no signal
    QTest::mouseClick(buttons[0], Qt::RightButton, nullptr, QPoint(), 10);
    QCOMPARE(spyClicked.count(), 2);
    QCOMPARE(spyPressed.count(), 2);
    QCOMPARE(spyReleased.count(), 2);
    QCOMPARE(spyChanged.count(), 2);
    QCOMPARE(kbuttongroup->selected(), 6);

    // manual selections
    kbuttongroup->setSelected(7);
    QCOMPARE(spyChanged.count(), 3);
    QList<QVariant> args4 = spyChanged.last();
    QCOMPARE(args4.first().toInt(), 7);
    QCOMPARE(kbuttongroup->selected(), 7);

    kbuttongroup->setSelected(2);
    QCOMPARE(spyChanged.count(), 4);
    args4 = spyChanged.last();
    QCOMPARE(args4.first().toInt(), 2);
    QCOMPARE(kbuttongroup->selected(), 2);

    // "bad" cases: ask for an invalid id -- the selection should not change
    kbuttongroup->setSelected(10);
    QCOMPARE(spyChanged.count(), 4);
    QCOMPARE(kbuttongroup->selected(), 2);

    kbuttongroup->setSelected(-1);
    QCOMPARE(spyChanged.count(), 4);
    QCOMPARE(kbuttongroup->selected(), 2);
}

QTEST_MAIN(KButtonGroupTest)

