/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/


#include <QFont>
#include <QtTest/QtTest>
#include <QCheckBox>
#include <QLabel>
#include <QLineEdit>
#include <QList>
#include <QPushButton>
#include <QToolButton>
#include <QVBoxLayout>
#include <QWizard>
#include <QStyle>
#include <QPlastiqueStyle>
#include <QTreeWidget>

//TESTED_CLASS=
//TESTED_FILES=

static QImage grabWidget(QWidget *window)
{
    return QPixmap::grabWidget(window).toImage();
}

class tst_QWizard : public QObject
{
    Q_OBJECT

public:
    tst_QWizard();

public slots:
    void init();
    void cleanup();

private slots:
    void buttonText();
    void setButtonLayout();
    void setButton();
    void setTitleFormatEtc();
    void setPixmap();
    void setDefaultProperty();
    void addPage();
    void setPage();
    void setStartId();
    void setOption_IndependentPages();
    void setOption_IgnoreSubTitles();
    void setOption_ExtendedWatermarkPixmap();
    void setOption_NoDefaultButton();
    void setOption_NoBackButtonOnStartPage();
    void setOption_NoBackButtonOnLastPage();
    void setOption_DisabledBackButtonOnLastPage();
    void setOption_HaveNextButtonOnLastPage();
    void setOption_HaveFinishButtonOnEarlyPages();
    void setOption_NoCancelButton();
    void setOption_CancelButtonOnLeft();
    void setOption_HaveHelpButton();
    void setOption_HelpButtonOnRight();
    void setOption_HaveCustomButtonX();
    void combinations_data();
    void combinations();
    void showCurrentPageOnly();
    void setButtonText();
    void setCommitPage();
    void setWizardStyle();
    void removePage();

    // task-specific tests below me:
    void task161660_buttonSpacing();
    void task177716_disableCommitButton();
    void task183550_stretchFactor();
    void task161658_alignments();
    void task177022_setFixedSize();
    void task248107_backButton();

    /*
        Things that could be added:

        1. Test virtual functions that are called, signals that are
           emitted, etc.

        2. Test QWizardPage more thorougly.

        3. Test the look and field a bit more (especially the
           different wizard styles, and how they interact with
           pixmaps, titles, subtitles, etc.).

        4. Test minimum sizes, sizes, maximum sizes, resizing, etc.

        5. Try setting various options and wizard styles in various
           orders and check that the results are the same every time,
           no matter the order in which the properties were set.

           -> Initial version done (tst_QWizard::combinations())

        6. Test done() and restart().

        7. Test default properties of built-in widgets.

        8. Test mutual exclusiveness of Next and Commit buttons.
    */
};

tst_QWizard::tst_QWizard()
{
}

void tst_QWizard::init()
{
#ifdef Q_OS_WINCE //disable magic for WindowsCE
    qApp->setAutoMaximizeThreshold(-1);
#endif
}

void tst_QWizard::cleanup()
{
}

void tst_QWizard::buttonText()
{
    QWizard wizard;
    wizard.setWizardStyle(QWizard::ClassicStyle);

    // Check the buttons' original text in Classic and Modern styles.
    for (int pass = 0; pass < 2; ++pass) {
        QCOMPARE(wizard.buttonText(QWizard::BackButton), QString("< &Back"));
        QVERIFY(wizard.buttonText(QWizard::NextButton).contains("Next"));
        QVERIFY(wizard.buttonText(QWizard::FinishButton).endsWith("Finish"));
        QVERIFY(wizard.buttonText(QWizard::CancelButton).endsWith("Cancel"));
        QVERIFY(wizard.buttonText(QWizard::HelpButton).endsWith("Help"));

        QVERIFY(wizard.buttonText(QWizard::CustomButton1).isEmpty());
        QVERIFY(wizard.buttonText(QWizard::CustomButton2).isEmpty());
        QVERIFY(wizard.buttonText(QWizard::CustomButton3).isEmpty());

        // robustness
        QVERIFY(wizard.buttonText(QWizard::Stretch).isEmpty());
        QVERIFY(wizard.buttonText(QWizard::NoButton).isEmpty());
        QVERIFY(wizard.buttonText(QWizard::NStandardButtons).isEmpty());
        QVERIFY(wizard.buttonText(QWizard::NButtons).isEmpty());

        wizard.setWizardStyle(QWizard::ModernStyle);
    }

    // Check the buttons' original text in Mac style.
    wizard.setWizardStyle(QWizard::MacStyle);

    QCOMPARE(wizard.buttonText(QWizard::BackButton), QString("Go Back"));
    QCOMPARE(wizard.buttonText(QWizard::NextButton), QString("Continue"));
    QCOMPARE(wizard.buttonText(QWizard::FinishButton), QString("Done"));
    QCOMPARE(wizard.buttonText(QWizard::CancelButton), QString("Cancel"));
    QCOMPARE(wizard.buttonText(QWizard::HelpButton), QString("Help"));

    QVERIFY(wizard.buttonText(QWizard::CustomButton1).isEmpty());
    QVERIFY(wizard.buttonText(QWizard::CustomButton2).isEmpty());
    QVERIFY(wizard.buttonText(QWizard::CustomButton3).isEmpty());

    // robustness
    QVERIFY(wizard.buttonText(QWizard::Stretch).isEmpty());
    QVERIFY(wizard.buttonText(QWizard::NoButton).isEmpty());
    QVERIFY(wizard.buttonText(QWizard::NStandardButtons).isEmpty());
    QVERIFY(wizard.buttonText(QWizard::NButtons).isEmpty());

    // Modify the buttons' text and see what happens.
    wizard.setButtonText(QWizard::NextButton, "N&este");
    wizard.setButtonText(QWizard::CustomButton2, "&Cucu");
    wizard.setButtonText(QWizard::Stretch, "Stretch");

    QCOMPARE(wizard.buttonText(QWizard::BackButton), QString("Go Back"));
    QCOMPARE(wizard.buttonText(QWizard::NextButton), QString("N&este"));
    QCOMPARE(wizard.buttonText(QWizard::FinishButton), QString("Done"));
    QCOMPARE(wizard.buttonText(QWizard::CancelButton), QString("Cancel"));
    QCOMPARE(wizard.buttonText(QWizard::HelpButton), QString("Help"));

    QVERIFY(wizard.buttonText(QWizard::CustomButton1).isEmpty());
    QCOMPARE(wizard.buttonText(QWizard::CustomButton2), QString("&Cucu"));
    QVERIFY(wizard.buttonText(QWizard::CustomButton3).isEmpty());

    // robustness
    QVERIFY(wizard.buttonText(QWizard::Stretch).isEmpty());
    QVERIFY(wizard.buttonText(QWizard::NoButton).isEmpty());
    QVERIFY(wizard.buttonText(QWizard::NStandardButtons).isEmpty());
    QVERIFY(wizard.buttonText(QWizard::NButtons).isEmpty());

    // Switch back to Classic style and see what happens.
    wizard.setWizardStyle(QWizard::ClassicStyle);

    for (int pass = 0; pass < 2; ++pass) {
        QCOMPARE(wizard.buttonText(QWizard::BackButton), QString("< &Back"));
        QCOMPARE(wizard.buttonText(QWizard::NextButton), QString("N&este"));
        QVERIFY(wizard.buttonText(QWizard::FinishButton).endsWith("Finish"));
        QVERIFY(wizard.buttonText(QWizard::CancelButton).endsWith("Cancel"));
        QVERIFY(wizard.buttonText(QWizard::HelpButton).endsWith("Help"));

        QVERIFY(wizard.buttonText(QWizard::CustomButton1).isEmpty());
        QCOMPARE(wizard.buttonText(QWizard::CustomButton2), QString("&Cucu"));
        QVERIFY(wizard.buttonText(QWizard::CustomButton3).isEmpty());

        // robustness
        QVERIFY(wizard.buttonText(QWizard::Stretch).isEmpty());
        QVERIFY(wizard.buttonText(QWizard::NoButton).isEmpty());
        QVERIFY(wizard.buttonText(QWizard::NStandardButtons).isEmpty());
        QVERIFY(wizard.buttonText(QWizard::NButtons).isEmpty());

        wizard.setOptions(QWizard::NoDefaultButton
                          | QWizard::NoBackButtonOnStartPage
                          | QWizard::NoBackButtonOnLastPage
                          | QWizard::DisabledBackButtonOnLastPage
                          | QWizard::NoCancelButton
                          | QWizard::CancelButtonOnLeft
                          | QWizard::HaveHelpButton
                          | QWizard::HelpButtonOnRight
                          | QWizard::HaveCustomButton1
                          | QWizard::HaveCustomButton2
                          | QWizard::HaveCustomButton3);
    }
}

void tst_QWizard::setButtonLayout()
{
    QList<QWizard::WizardButton> layout;

    QWizard wizard;
    wizard.setWizardStyle(QWizard::ClassicStyle);
    wizard.setOptions(0);
    wizard.setButtonLayout(layout);
    wizard.show();
    qApp->processEvents();

    // if these crash, this means there's a bug in QWizard
    QVERIFY(wizard.button(QWizard::NextButton)->text().contains("Next"));
    QVERIFY(wizard.button(QWizard::BackButton)->text().contains("Back"));
    QVERIFY(wizard.button(QWizard::FinishButton)->text().contains("Finish"));
    QVERIFY(wizard.button(QWizard::CancelButton)->text().contains("Cancel"));
    QVERIFY(wizard.button(QWizard::HelpButton)->text().contains("Help"));
    QVERIFY(wizard.button(QWizard::CustomButton1)->text().isEmpty());
    QVERIFY(wizard.button(QWizard::CustomButton2)->text().isEmpty());
    QVERIFY(wizard.button(QWizard::CustomButton3)->text().isEmpty());
    QVERIFY(!wizard.button(QWizard::Stretch));
    QVERIFY(!wizard.button(QWizard::NoButton));

    QVERIFY(!wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::HelpButton)->isVisible());

    layout << QWizard::NextButton << QWizard::HelpButton;
    wizard.setButtonLayout(layout);
    qApp->processEvents();

    QVERIFY(!wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());
    QVERIFY(wizard.button(QWizard::HelpButton)->isVisible());

    wizard.addPage(new QWizardPage);
    wizard.addPage(new QWizardPage);
    qApp->processEvents();

    QVERIFY(!wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());
    QVERIFY(wizard.button(QWizard::HelpButton)->isVisible());

    wizard.restart();
    qApp->processEvents();

    QVERIFY(wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());
    QVERIFY(wizard.button(QWizard::HelpButton)->isVisible());

    layout.clear();
    layout << QWizard::NextButton << QWizard::HelpButton << QWizard::BackButton
           << QWizard::FinishButton << QWizard::CancelButton << QWizard::Stretch
           << QWizard::CustomButton2;

    // Turn on all the button-related wizard options. Some of these
    // should have no impact on a custom layout; others should.
    wizard.setButtonLayout(layout);
    wizard.setOptions(QWizard::NoDefaultButton
                      | QWizard::NoBackButtonOnStartPage
                      | QWizard::NoBackButtonOnLastPage
                      | QWizard::DisabledBackButtonOnLastPage
                      | QWizard::HaveNextButtonOnLastPage
                      | QWizard::HaveFinishButtonOnEarlyPages
                      | QWizard::NoCancelButton
                      | QWizard::CancelButtonOnLeft
                      | QWizard::HaveHelpButton
                      | QWizard::HelpButtonOnRight
                      | QWizard::HaveCustomButton1
                      | QWizard::HaveCustomButton2
                      | QWizard::HaveCustomButton3);
    qApp->processEvents();

    // we're on first page
    QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());
    QVERIFY(wizard.button(QWizard::FinishButton)->isVisible());
    QVERIFY(wizard.button(QWizard::CancelButton)->isVisible()); // NoCancelButton overridden
    QVERIFY(wizard.button(QWizard::HelpButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::CustomButton1)->isVisible());
    QVERIFY(wizard.button(QWizard::CustomButton2)->isVisible());    // HaveCustomButton2 overridden
    QVERIFY(!wizard.button(QWizard::CustomButton3)->isVisible());

    wizard.next();
    qApp->processEvents();

    // we're on last page
    QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());
    QVERIFY(wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::NextButton)->isEnabled());
    QVERIFY(wizard.button(QWizard::FinishButton)->isVisible());
    QVERIFY(wizard.button(QWizard::FinishButton)->isEnabled());
    QVERIFY(wizard.button(QWizard::CancelButton)->isVisible()); // NoCancelButton overridden
    QVERIFY(wizard.button(QWizard::HelpButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::CustomButton1)->isVisible());
    QVERIFY(wizard.button(QWizard::CustomButton2)->isVisible());    // HaveCustomButton2 overridden
    QVERIFY(!wizard.button(QWizard::CustomButton3)->isVisible());

    // Check that the buttons are in the right order on screen.
    for (int pass = 0; pass < 2; ++pass) {
        wizard.setLayoutDirection(pass == 0 ? Qt::LeftToRight : Qt::RightToLeft);
        qApp->processEvents();

        int sign = (pass == 0) ? +1 : -1;

        int p[5];
        p[0] = sign * wizard.button(QWizard::NextButton)->x();
        p[1] = sign * wizard.button(QWizard::HelpButton)->x();
        p[2] = sign * wizard.button(QWizard::FinishButton)->x();
        p[3] = sign * wizard.button(QWizard::CancelButton)->x();
        p[4] = sign * wizard.button(QWizard::CustomButton2)->x();

        QVERIFY(p[0] < p[1]);
        QVERIFY(p[1] < p[2]);
        QVERIFY(p[2] < p[3]);
        QVERIFY(p[3] < p[4]);
    }

    layout.clear();
    wizard.setButtonLayout(layout);
    qApp->processEvents();

    for (int i = -1; i < 50; ++i) {
        QAbstractButton *button = wizard.button(QWizard::WizardButton(i));
        QVERIFY(!button || !button->isVisible());
    }
}

void tst_QWizard::setButton()
{
    QPointer<QToolButton> toolButton = new QToolButton;

    QWizard wizard;
    wizard.setWizardStyle(QWizard::ClassicStyle);
    wizard.setButton(QWizard::NextButton, toolButton);
    wizard.setButton(QWizard::CustomButton2, new QCheckBox("Kustom 2"));

    QVERIFY(qobject_cast<QToolButton *>(wizard.button(QWizard::NextButton)));
    QVERIFY(qobject_cast<QCheckBox *>(wizard.button(QWizard::CustomButton2)));
    QVERIFY(qobject_cast<QPushButton *>(wizard.button(QWizard::CustomButton1)));

    QVERIFY(toolButton != 0);

    // resetting the same button does nothing
    wizard.setButton(QWizard::NextButton, toolButton);
    QVERIFY(toolButton != 0);

    // revert to default button
    wizard.setButton(QWizard::NextButton, 0);
    QVERIFY(toolButton == 0);
    QVERIFY(qobject_cast<QPushButton *>(wizard.button(QWizard::NextButton)));
    QVERIFY(wizard.button(QWizard::NextButton)->text().contains("Next"));
}

void tst_QWizard::setTitleFormatEtc()
{
    QWizard wizard;
    QVERIFY(wizard.titleFormat() == Qt::AutoText);
    QVERIFY(wizard.subTitleFormat() == Qt::AutoText);

    wizard.setTitleFormat(Qt::RichText);
    QVERIFY(wizard.titleFormat() == Qt::RichText);
    QVERIFY(wizard.subTitleFormat() == Qt::AutoText);

    wizard.setSubTitleFormat(Qt::PlainText);
    QVERIFY(wizard.titleFormat() == Qt::RichText);
    QVERIFY(wizard.subTitleFormat() == Qt::PlainText);
}

void tst_QWizard::setPixmap()
{
    QPixmap p1(1, 1);
    QPixmap p2(2, 2);
    QPixmap p3(3, 3);
    QPixmap p4(4, 4);
    QPixmap p5(5, 5);

    QWizard wizard;
    QWizardPage *page = new QWizardPage;
    QWizardPage *page2 = new QWizardPage;

    wizard.addPage(page);
    wizard.addPage(page2);

    QVERIFY(wizard.pixmap(QWizard::BannerPixmap).isNull());
    QVERIFY(wizard.pixmap(QWizard::LogoPixmap).isNull());
    QVERIFY(wizard.pixmap(QWizard::WatermarkPixmap).isNull());
#ifdef Q_WS_MAC
    if (QSysInfo::MacintoshVersion > QSysInfo::MV_10_3)
        QVERIFY(wizard.pixmap(QWizard::BackgroundPixmap).isNull() == false);
    else  // fall through since the image doesn't exist on a 10.3 system.
        QVERIFY(page->pixmap(QWizard::BackgroundPixmap).isNull());
#else
    QVERIFY(wizard.pixmap(QWizard::BackgroundPixmap).isNull());
#endif

    QVERIFY(page->pixmap(QWizard::BannerPixmap).isNull());
    QVERIFY(page->pixmap(QWizard::LogoPixmap).isNull());
    QVERIFY(page->pixmap(QWizard::WatermarkPixmap).isNull());
#ifdef Q_WS_MAC
    if (QSysInfo::MacintoshVersion > QSysInfo::MV_10_3)
        QVERIFY(wizard.pixmap(QWizard::BackgroundPixmap).isNull() == false);
    else  // fall through since the image doesn't exist on a 10.3 system.
        QVERIFY(page->pixmap(QWizard::BackgroundPixmap).isNull());
#else
    QVERIFY(page->pixmap(QWizard::BackgroundPixmap).isNull());
#endif
    wizard.setPixmap(QWizard::BannerPixmap, p1);
    wizard.setPixmap(QWizard::LogoPixmap, p2);
    wizard.setPixmap(QWizard::WatermarkPixmap, p3);
    wizard.setPixmap(QWizard::BackgroundPixmap, p4);

    page->setPixmap(QWizard::LogoPixmap, p5);

    QVERIFY(wizard.pixmap(QWizard::BannerPixmap).size() == p1.size());
    QVERIFY(wizard.pixmap(QWizard::LogoPixmap).size() == p2.size());
    QVERIFY(wizard.pixmap(QWizard::WatermarkPixmap).size() == p3.size());
    QVERIFY(wizard.pixmap(QWizard::BackgroundPixmap).size() == p4.size());

    QVERIFY(page->pixmap(QWizard::BannerPixmap).size() == p1.size());
    QVERIFY(page->pixmap(QWizard::LogoPixmap).size() == p5.size());
    QVERIFY(page->pixmap(QWizard::WatermarkPixmap).size() == p3.size());
    QVERIFY(page->pixmap(QWizard::BackgroundPixmap).size() == p4.size());

    QVERIFY(page2->pixmap(QWizard::BannerPixmap).size() == p1.size());
    QVERIFY(page2->pixmap(QWizard::LogoPixmap).size() == p2.size());
    QVERIFY(page2->pixmap(QWizard::WatermarkPixmap).size() == p3.size());
    QVERIFY(page2->pixmap(QWizard::BackgroundPixmap).size() == p4.size());
}

class MyPage1 : public QWizardPage
{
public:
    MyPage1() {
        edit1 = new QLineEdit("Bla 1", this);

        edit2 = new QLineEdit("Bla 2", this);
        edit2->setInputMask("Mask");

        edit3 = new QLineEdit("Bla 3", this);
        edit3->setMaxLength(25);

        edit4 = new QLineEdit("Bla 4", this);
    }

    void registerField(const QString &name, QWidget *widget,
                       const char *property = 0,
                       const char *changedSignal = 0)
        { QWizardPage::registerField(name, widget, property, changedSignal); }

    QLineEdit *edit1;
    QLineEdit *edit2;
    QLineEdit *edit3;
    QLineEdit *edit4;
};

void tst_QWizard::setDefaultProperty()
{
    QWizard wizard;
    MyPage1 *page = new MyPage1;
    wizard.addPage(page);

    page->registerField("edit1", page->edit1);

    wizard.setDefaultProperty("QLineEdit", "inputMask", 0);
    page->registerField("edit2", page->edit2);

    wizard.setDefaultProperty("QLineEdit", "maxLength", 0);
    page->registerField("edit3", page->edit3);

    wizard.setDefaultProperty("QLineEdit", "text", SIGNAL(textChanged(QString)));
    page->registerField("edit3bis", page->edit3);

    wizard.setDefaultProperty("QWidget", "enabled", 0); // less specific, i.e. ignored
    page->registerField("edit4", page->edit4);
    QTest::ignoreMessage(QtWarningMsg,"QWizard::setField: Couldn't write to property 'customProperty'");
    wizard.setDefaultProperty("QLineEdit", "customProperty", 0);
    page->registerField("edit4bis", page->edit4);

    QCOMPARE(wizard.field("edit1").toString(), QString("Bla 1"));
    QCOMPARE(wizard.field("edit2").toString(), page->edit2->inputMask());
    QCOMPARE(wizard.field("edit3").toInt(), 25);
    QCOMPARE(wizard.field("edit3bis").toString(), QString("Bla 3"));
    QCOMPARE(wizard.field("edit4").toString(), QString("Bla 4"));
    QCOMPARE(wizard.field("edit4bis").toString(), QString());

    wizard.setField("edit1", "Alpha");
    wizard.setField("edit2", "Beta");
    wizard.setField("edit3", 50);
    wizard.setField("edit3bis", "Gamma");
    wizard.setField("edit4", "Delta");
    wizard.setField("edit4bis", "Epsilon");

    QCOMPARE(wizard.field("edit1").toString(), QString("Alpha"));
    QVERIFY(wizard.field("edit2").toString().contains("Beta"));
    QCOMPARE(wizard.field("edit3").toInt(), 50);
    QCOMPARE(wizard.field("edit3bis").toString(), QString("Gamma"));
    QCOMPARE(wizard.field("edit4").toString(), QString("Delta"));
    QCOMPARE(wizard.field("edit4bis").toString(), QString("Epsilon"));

    // make sure the data structure is reasonable
    for (int i = 0; i < 200000; ++i) {
        wizard.setDefaultProperty("QLineEdit", "x" + QByteArray::number(i), 0);
        wizard.setDefaultProperty("QLabel", "y" + QByteArray::number(i), 0);
    }
}

void tst_QWizard::addPage()
{
    QWidget *parent = new QWidget;
    QWizard wizard;
    const int N = 100;
    QWizardPage *pages[N];

    for (int i = 0; i < N; ++i) {
        pages[i] = new QWizardPage(parent);
        QCOMPARE(wizard.addPage(pages[i]), i);
        QCOMPARE(pages[i]->window(), (QWidget *)&wizard);
        QCOMPARE(wizard.startId(), 0);
    }

    for (int i = 0; i < N; ++i) {
        QVERIFY(pages[i] == wizard.page(i));
    }
    QVERIFY(!wizard.page(-1));
    QVERIFY(!wizard.page(N));
    QVERIFY(!wizard.page(N + 1));

    wizard.setPage(N + 50, new QWizardPage);
    wizard.setPage(-3000, new QWizardPage);

    QWizardPage *pageX = new QWizardPage;
    QCOMPARE(wizard.addPage(pageX), N + 51);
    QCOMPARE(wizard.page(N + 51), pageX);

    QCOMPARE(wizard.addPage(new QWizardPage), N + 52);

    QTest::ignoreMessage(QtWarningMsg,"QWizard::setPage: Cannot insert null page");    
    wizard.addPage(0); // generates a warning
    delete parent;
}

#define CHECK_VISITED(wizard, list) \
    do { \
        QList<int> myList = list; \
        QCOMPARE((wizard).visitedPages(), myList); \
        Q_FOREACH(int id, myList) \
            QVERIFY((wizard).hasVisitedPage(id)); \
    } while (0)

void tst_QWizard::setPage()
{
    QWidget *parent = new QWidget;
    QWizard wizard;
    QWizardPage *page;

    QCOMPARE(wizard.startId(), -1);
    QCOMPARE(wizard.currentId(), -1);
    QVERIFY(!wizard.currentPage());
    QCOMPARE(wizard.nextId(), -1);

    page = new QWizardPage(parent);
    QTest::ignoreMessage(QtWarningMsg,"QWizard::setPage: Cannot insert page with ID -1");    
    wizard.setPage(-1, page);   // gives a warning and does nothing
    QVERIFY(!wizard.page(-2));
    QVERIFY(!wizard.page(-1));
    QVERIFY(!wizard.page(0));
    QCOMPARE(wizard.startId(), -1);
    QCOMPARE(wizard.currentId(), -1);
    QVERIFY(!wizard.currentPage());
    QCOMPARE(wizard.nextId(), -1);
    CHECK_VISITED(wizard, QList<int>());

    page = new QWizardPage(parent);
    wizard.setPage(0, page);
    QCOMPARE(page->window(), (QWidget *)&wizard);
    QCOMPARE(wizard.page(0), page);
    QCOMPARE(wizard.startId(), 0);
    QCOMPARE(wizard.currentId(), -1);
    QVERIFY(!wizard.currentPage());
    QCOMPARE(wizard.nextId(), -1);
    CHECK_VISITED(wizard, QList<int>());

    page = new QWizardPage(parent);
    wizard.setPage(-2, page);
    QCOMPARE(page->window(), (QWidget *)&wizard);
    QCOMPARE(wizard.page(-2), page);
    QCOMPARE(wizard.startId(), -2);
    QCOMPARE(wizard.currentId(), -1);
    QVERIFY(!wizard.currentPage());
    QCOMPARE(wizard.nextId(), -1);
    CHECK_VISITED(wizard, QList<int>());

    wizard.restart();
    QCOMPARE(wizard.page(-2), page);
    QCOMPARE(wizard.startId(), -2);
    QCOMPARE(wizard.currentId(), -2);
    QVERIFY(wizard.currentPage() == page);
    QCOMPARE(wizard.nextId(), 0);
    CHECK_VISITED(wizard, QList<int>() << -2);

    page = new QWizardPage(parent);
    wizard.setPage(2, page);
    QCOMPARE(wizard.page(2), page);
    QCOMPARE(wizard.startId(), -2);
    QCOMPARE(wizard.currentId(), -2);
    QVERIFY(wizard.currentPage() == wizard.page(-2));
    QCOMPARE(wizard.nextId(), 0);
    CHECK_VISITED(wizard, QList<int>() << -2);

    wizard.restart();
    QCOMPARE(wizard.startId(), -2);
    QCOMPARE(wizard.currentId(), -2);
    QVERIFY(wizard.currentPage() == wizard.page(-2));
    QCOMPARE(wizard.nextId(), 0);
    CHECK_VISITED(wizard, QList<int>() << -2);

    page = new QWizardPage(parent);
    wizard.setPage(-3, page);
    QCOMPARE(wizard.page(-3), page);
    QCOMPARE(wizard.startId(), -3);
    QCOMPARE(wizard.currentId(), -2);
    QVERIFY(wizard.currentPage() == wizard.page(-2));
    QCOMPARE(wizard.nextId(), 0);
    CHECK_VISITED(wizard, QList<int>() << -2);

    wizard.restart();
    QCOMPARE(wizard.startId(), -3);
    QCOMPARE(wizard.currentId(), -3);
    QVERIFY(wizard.currentPage() == wizard.page(-3));
    QCOMPARE(wizard.nextId(), -2);
    CHECK_VISITED(wizard, QList<int>() << -3);

    wizard.next();
    QCOMPARE(wizard.startId(), -3);
    QCOMPARE(wizard.currentId(), -2);
    QVERIFY(wizard.currentPage() == wizard.page(-2));
    QCOMPARE(wizard.nextId(), 0);
    CHECK_VISITED(wizard, QList<int>() << -3 << -2);

    wizard.next();
    QCOMPARE(wizard.startId(), -3);
    QCOMPARE(wizard.currentId(), 0);
    QVERIFY(wizard.currentPage() == wizard.page(0));
    QCOMPARE(wizard.nextId(), 2);
    CHECK_VISITED(wizard, QList<int>() << -3 << -2 << 0);

    for (int i = 0; i < 100; ++i) {
        wizard.next();
        QCOMPARE(wizard.startId(), -3);
        QCOMPARE(wizard.currentId(), 2);
        QVERIFY(wizard.currentPage() == wizard.page(2));
        QCOMPARE(wizard.nextId(), -1);
        CHECK_VISITED(wizard, QList<int>() << -3 << -2 << 0 << 2);
    }

    wizard.back();
    QCOMPARE(wizard.startId(), -3);
    QCOMPARE(wizard.currentId(), 0);
    QVERIFY(wizard.currentPage() == wizard.page(0));
    QCOMPARE(wizard.nextId(), 2);
    CHECK_VISITED(wizard, QList<int>() << -3 << -2 << 0);

    wizard.back();
    QCOMPARE(wizard.startId(), -3);
    QCOMPARE(wizard.currentId(), -2);
    QVERIFY(wizard.currentPage() == wizard.page(-2));
    QCOMPARE(wizard.nextId(), 0);
    CHECK_VISITED(wizard, QList<int>() << -3 << -2);

    for (int i = 0; i < 100; ++i) {
        wizard.back();
        QCOMPARE(wizard.startId(), -3);
        QCOMPARE(wizard.currentId(), -3);
        QVERIFY(wizard.currentPage() == wizard.page(-3));
        QCOMPARE(wizard.nextId(), -2);
        CHECK_VISITED(wizard, QList<int>() << -3);
    }

    for (int i = 0; i < 100; ++i) {
        wizard.restart();
        QCOMPARE(wizard.startId(), -3);
        QCOMPARE(wizard.currentId(), -3);
        QVERIFY(wizard.currentPage() == wizard.page(-3));
        QCOMPARE(wizard.nextId(), -2);
        CHECK_VISITED(wizard, QList<int>() << -3);
    }
    delete parent;
}

void tst_QWizard::setStartId()
{
    QWizard wizard;
    QCOMPARE(wizard.startId(), -1);

    wizard.setPage(INT_MIN, new QWizardPage);
    QCOMPARE(wizard.startId(), INT_MIN);

    wizard.setPage(-2, new QWizardPage);
    QCOMPARE(wizard.startId(), INT_MIN);

    wizard.setPage(0, new QWizardPage);
    QCOMPARE(wizard.startId(), INT_MIN);

    wizard.setPage(1, new QWizardPage);
    QCOMPARE(wizard.startId(), INT_MIN);

    wizard.setPage(INT_MAX, new QWizardPage);
    QCOMPARE(wizard.startId(), INT_MIN);

    QTest::ignoreMessage(QtWarningMsg,"QWizard::setStartId: Invalid page ID -1");    
    wizard.setStartId(-1);
    QCOMPARE(wizard.startId(), INT_MIN);

    wizard.setStartId(-2);
    QCOMPARE(wizard.startId(), -2);
    QCOMPARE(wizard.nextId(), -1);

    wizard.restart();
    QCOMPARE(wizard.startId(), -2);
    QCOMPARE(wizard.currentId(), -2);
    QVERIFY(wizard.currentPage() == wizard.page(-2));
    QCOMPARE(wizard.nextId(), 0);

    wizard.next();
    QCOMPARE(wizard.startId(), -2);
    QCOMPARE(wizard.currentId(), 0);
    QVERIFY(wizard.currentPage() == wizard.page(0));
    QCOMPARE(wizard.nextId(), 1);

    wizard.setStartId(INT_MIN);
    QCOMPARE(wizard.startId(), INT_MIN);
    QCOMPARE(wizard.currentId(), 0);
    QVERIFY(wizard.currentPage() == wizard.page(0));
    QCOMPARE(wizard.nextId(), 1);

    wizard.next();
    QCOMPARE(wizard.startId(), INT_MIN);
    QCOMPARE(wizard.currentId(), 1);
    QVERIFY(wizard.currentPage() == wizard.page(1));
    QCOMPARE(wizard.nextId(), INT_MAX);

    wizard.next();
    QCOMPARE(wizard.startId(), INT_MIN);
    QCOMPARE(wizard.currentId(), INT_MAX);
    QVERIFY(wizard.currentPage() == wizard.page(INT_MAX));
    QCOMPARE(wizard.nextId(), -1);
    CHECK_VISITED(wizard, QList<int>() << -2 << 0 << 1 << INT_MAX);
}

struct MyPage2 : public QWizardPage
{
public:
    MyPage2() : init(0), cleanup(0), validate(0) {}

    void initializePage() { ++init; QWizardPage::initializePage(); checkInvariant(); }
    void cleanupPage() { ++cleanup; QWizardPage::cleanupPage(); checkInvariant(); }
    bool validatePage() { ++validate; return QWizardPage::validatePage(); }

    void check(int init, int cleanup)
    { Q_ASSERT(init == this->init && cleanup == this->cleanup); Q_UNUSED(init); Q_UNUSED(cleanup); }

    int init;
    int cleanup;
    int validate;

private:
    void checkInvariant() { Q_ASSERT(init == cleanup || init - 1 == cleanup); }
};

#define CHECK_PAGE_INIT(i0, c0, i1, c1, i2, c2) \
    page0->check((i0), (c0)); \
    page1->check((i1), (c1)); \
    page2->check((i2), (c2));

void tst_QWizard::setOption_IndependentPages()
{
    MyPage2 *page0 = new MyPage2;
    MyPage2 *page1 = new MyPage2;
    MyPage2 *page2 = new MyPage2;

    QWizard wizard;
    wizard.addPage(page0);
    wizard.addPage(page1);
    wizard.addPage(page2);

    QVERIFY(!wizard.testOption(QWizard::IndependentPages));

    wizard.restart();

    // Make sure initializePage() and cleanupPage() are called are
    // they should when the
    // wizard.testOption(QWizard::IndependentPages option is off.
    for (int i = 0; i < 10; ++i) {
        CHECK_PAGE_INIT(i + 1, i, i, i, i, i);

        wizard.next();
        CHECK_PAGE_INIT(i + 1, i, i + 1, i, i, i);

        wizard.next();
        CHECK_PAGE_INIT(i + 1, i, i + 1, i, i + 1, i);

        wizard.next();
        CHECK_PAGE_INIT(i + 1, i, i + 1, i, i + 1, i);

        wizard.back();
        CHECK_PAGE_INIT(i + 1, i, i + 1, i, i + 1, i + 1);

        wizard.back();
        CHECK_PAGE_INIT(i + 1, i, i + 1, i + 1, i + 1, i + 1);

        wizard.back();
        CHECK_PAGE_INIT(i + 1, i, i + 1, i + 1, i + 1, i + 1);

        wizard.restart();
    }

    CHECK_PAGE_INIT(11, 10, 10, 10, 10, 10);

    wizard.next();
    CHECK_PAGE_INIT(11, 10, 11, 10, 10, 10);

    // Now, turn on the option and check that they're called at the
    // appropiate times (which aren't the same).
    wizard.setOption(QWizard::IndependentPages, true);
    CHECK_PAGE_INIT(11, 10, 11, 10, 10, 10);

    wizard.back();
    CHECK_PAGE_INIT(11, 10, 11, 10, 10, 10);

    wizard.next();
    CHECK_PAGE_INIT(11, 10, 11, 10, 10, 10);

    wizard.next();
    CHECK_PAGE_INIT(11, 10, 11, 10, 11, 10);

    wizard.next();
    CHECK_PAGE_INIT(11, 10, 11, 10, 11, 10);

    wizard.back();
    CHECK_PAGE_INIT(11, 10, 11, 10, 11, 10);

    wizard.setStartId(2);

    wizard.restart();
    CHECK_PAGE_INIT(11, 11, 11, 11, 12, 11);

    wizard.back();
    CHECK_PAGE_INIT(11, 11, 11, 11, 12, 11);

    wizard.next();
    CHECK_PAGE_INIT(11, 11, 11, 11, 12, 11);

    wizard.setStartId(0);
    wizard.restart();
    CHECK_PAGE_INIT(12, 11, 11, 11, 12, 12);

    wizard.next();
    CHECK_PAGE_INIT(12, 11, 12, 11, 12, 12);

    wizard.next();
    CHECK_PAGE_INIT(12, 11, 12, 11, 13, 12);

    wizard.back();
    CHECK_PAGE_INIT(12, 11, 12, 11, 13, 12);

    // Fun stuff here.

    wizard.setOption(QWizard::IndependentPages, false);
    CHECK_PAGE_INIT(12, 11, 12, 11, 13, 13);

    wizard.setOption(QWizard::IndependentPages, true);
    CHECK_PAGE_INIT(12, 11, 12, 11, 13, 13);

    wizard.setOption(QWizard::IndependentPages, false);
    CHECK_PAGE_INIT(12, 11, 12, 11, 13, 13);

    wizard.back();
    CHECK_PAGE_INIT(12, 11, 12, 12, 13, 13);

    wizard.back();
    CHECK_PAGE_INIT(12, 11, 12, 12, 13, 13);
}

void tst_QWizard::setOption_IgnoreSubTitles()
{
#if defined(Q_OS_WINCE)
    QSKIP("Skipped because of limited resources and potential crash. (Task: 166824)", SkipAll);
#endif
    QWizard wizard1;
    wizard1.setButtonLayout(QList<QWizard::WizardButton>() << QWizard::CancelButton);
    wizard1.resize(500, 500);
    QVERIFY(!wizard1.testOption(QWizard::IgnoreSubTitles));
    QWizardPage *page11 = new QWizardPage;
    page11->setTitle("Page X");
    page11->setSubTitle("Some subtitle");

    QWizardPage *page12 = new QWizardPage;
    page12->setTitle("Page X");

    wizard1.addPage(page11);
    wizard1.addPage(page12);

    QWizard wizard2;
    wizard2.setButtonLayout(QList<QWizard::WizardButton>() << QWizard::CancelButton);
    wizard2.resize(500, 500);
    wizard2.setOption(QWizard::IgnoreSubTitles, true);
    QWizardPage *page21 = new QWizardPage;
    page21->setTitle("Page X");
    page21->setSubTitle("Some subtitle");

    QWizardPage *page22 = new QWizardPage;
    page22->setTitle("Page X");

    wizard2.addPage(page21);
    wizard2.addPage(page22);

    wizard1.show();
    wizard2.show();

    // Check that subtitles are shown when they should (i.e.,
    // they're set and IgnoreSubTitles is off).

    qApp->setActiveWindow(0); // ensure no focus rectangle around cancel button
    QImage i11 = grabWidget(&wizard1);
    QImage i21 = grabWidget(&wizard2);
    QVERIFY(i11 != i21);

    wizard1.next();
    wizard2.next();

    QImage i12 = grabWidget(&wizard1);
    QImage i22 = grabWidget(&wizard2);
    QVERIFY(i12 == i22);
    QVERIFY(i21 == i22);

    wizard1.back();
    wizard2.back();

    QImage i13 = grabWidget(&wizard1);
    QImage i23 = grabWidget(&wizard2);
    QVERIFY(i13 == i11);
    QVERIFY(i23 == i21);

    wizard1.setOption(QWizard::IgnoreSubTitles, true);
    wizard2.setOption(QWizard::IgnoreSubTitles, false);

    QImage i14 = grabWidget(&wizard1);
    QImage i24 = grabWidget(&wizard2);
    QVERIFY(i14 == i21);
    QVERIFY(i24 == i11);

    // Check the impact of subtitles on the rest of the layout, by
    // using a subtitle that looks empty (but that isn't). In
    // Classic and Modern styles, this should be enough to trigger a
    // "header"; in Mac style, this only creates a QLabel, with no
    // text, i.e. it doesn't affect the layout.

    page11->setSubTitle("<b></b>");    // not quite empty, but looks empty

    for (int i = 0; i < 3; ++i) {
        for (int j = 0; j < 2; ++j) {
            wizard1.setOption(QWizard::IgnoreSubTitles, j == 0);

            wizard1.setWizardStyle(i == 0 ? QWizard::ClassicStyle
                                   : i == 1 ? QWizard::ModernStyle
                                            : QWizard::MacStyle);
            wizard1.restart();
            QImage i1 = grabWidget(&wizard1);

            wizard1.next();
            QImage i2 = grabWidget(&wizard1);

            if (j == 0 || wizard1.wizardStyle() == QWizard::MacStyle) {
                QVERIFY(i1 == i2);
            } else {
                QVERIFY(i1 != i2);
            }
        }
    }
}

void tst_QWizard::setOption_ExtendedWatermarkPixmap()
{
#if defined(Q_OS_WINCE)
    QSKIP("Skipped because of limited resources and potential crash. (Task: 166824)", SkipAll);
#endif
    QPixmap watermarkPixmap(200, 400);
    watermarkPixmap.fill(Qt::black);

    QWizard wizard1;
    wizard1.setButtonLayout(QList<QWizard::WizardButton>() << QWizard::CancelButton);
    QVERIFY(!wizard1.testOption(QWizard::ExtendedWatermarkPixmap));
    QWizardPage *page11 = new QWizardPage;
    page11->setTitle("Page X");
    page11->setPixmap(QWizard::WatermarkPixmap, watermarkPixmap);

    QWizardPage *page12 = new QWizardPage;
    page12->setTitle("Page X");

    wizard1.addPage(page11);
    wizard1.addPage(page12);

    QWizard wizard2;
    wizard2.setButtonLayout(QList<QWizard::WizardButton>() << QWizard::CancelButton);
    wizard2.setOption(QWizard::ExtendedWatermarkPixmap, true);
    QWizardPage *page21 = new QWizardPage;
    page21->setTitle("Page X");
    page21->setPixmap(QWizard::WatermarkPixmap, watermarkPixmap);

    QWizardPage *page22 = new QWizardPage;
    page22->setTitle("Page X");

    wizard2.addPage(page21);
    wizard2.addPage(page22);

    wizard1.show();
    wizard2.show();

    // Check the impact of watermark pixmaps on the rest of the layout.

    for (int i = 0; i < 3; ++i) {
        QImage i1[2];
        QImage i2[2];
        for (int j = 0; j < 2; ++j) {
            wizard1.setOption(QWizard::ExtendedWatermarkPixmap, j == 0);

            wizard1.setWizardStyle(i == 0 ? QWizard::ClassicStyle
                                   : i == 1 ? QWizard::ModernStyle
                                            : QWizard::MacStyle);
            wizard1.restart();
            wizard1.setMaximumSize(1000, 1000);
            wizard1.resize(600, 600);
            i1[j] = grabWidget(&wizard1);

            wizard1.next();
            wizard1.setMaximumSize(1000, 1000);
            wizard1.resize(600, 600);
            i2[j] = grabWidget(&wizard1);
        }

        if (wizard1.wizardStyle() == QWizard::MacStyle) {
            QVERIFY(i1[0] == i1[1]);
            QVERIFY(i2[0] == i2[1]);
            QVERIFY(i1[0] == i2[0]);
        } else {
            QVERIFY(i1[0] != i1[1]);
            QVERIFY(i2[0] == i2[1]);
            QVERIFY(i1[0] != i2[0]);
            QVERIFY(i1[1] != i2[1]);
        }
    }
}

void tst_QWizard::setOption_NoDefaultButton()
{
    QWizard wizard;
    wizard.setOption(QWizard::NoDefaultButton, false);
    wizard.setOption(QWizard::HaveFinishButtonOnEarlyPages, true);
    wizard.addPage(new QWizardPage);
    wizard.page(0)->setFinalPage(true);
    wizard.addPage(new QWizardPage);

    if (QPushButton *pb = qobject_cast<QPushButton *>(wizard.button(QWizard::NextButton)))
        pb->setAutoDefault(false);
    if (QPushButton *pb = qobject_cast<QPushButton *>(wizard.button(QWizard::FinishButton)))
        pb->setAutoDefault(false);

    wizard.show();
    qApp->processEvents();
    QVERIFY(qobject_cast<QPushButton *>(wizard.button(QWizard::NextButton))->isDefault());
    QVERIFY(wizard.button(QWizard::FinishButton)->isEnabled());

    wizard.next();
    QVERIFY(qobject_cast<QPushButton *>(wizard.button(QWizard::FinishButton))->isDefault());

    wizard.back();
    QVERIFY(qobject_cast<QPushButton *>(wizard.button(QWizard::NextButton))->isDefault());

    wizard.setOption(QWizard::NoDefaultButton, true);
    QVERIFY(!qobject_cast<QPushButton *>(wizard.button(QWizard::NextButton))->isDefault());
    QVERIFY(!qobject_cast<QPushButton *>(wizard.button(QWizard::FinishButton))->isDefault());

    wizard.next();
    QVERIFY(!qobject_cast<QPushButton *>(wizard.button(QWizard::NextButton))->isDefault());
    QVERIFY(!qobject_cast<QPushButton *>(wizard.button(QWizard::FinishButton))->isDefault());

    wizard.back();
    QVERIFY(!qobject_cast<QPushButton *>(wizard.button(QWizard::NextButton))->isDefault());
    QVERIFY(!qobject_cast<QPushButton *>(wizard.button(QWizard::FinishButton))->isDefault());

    wizard.setOption(QWizard::NoDefaultButton, false);
    QVERIFY(qobject_cast<QPushButton *>(wizard.button(QWizard::NextButton))->isDefault());
}

void tst_QWizard::setOption_NoBackButtonOnStartPage()
{
    QWizard wizard;
    wizard.setOption(QWizard::NoBackButtonOnStartPage, true);
    wizard.addPage(new QWizardPage);
    wizard.addPage(new QWizardPage);
    wizard.addPage(new QWizardPage);

    wizard.setStartId(1);
    wizard.show();
    qApp->processEvents();

    QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());

    wizard.setOption(QWizard::NoBackButtonOnStartPage, false);
    qApp->processEvents();
    QVERIFY(wizard.button(QWizard::BackButton)->isVisible());

    wizard.setOption(QWizard::NoBackButtonOnStartPage, true);
    qApp->processEvents();
    QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());

    wizard.next();
    qApp->processEvents();
    QVERIFY(wizard.button(QWizard::BackButton)->isVisible());

    wizard.setOption(QWizard::NoBackButtonOnStartPage, false);
    QVERIFY(wizard.button(QWizard::BackButton)->isVisible());

    wizard.setOption(QWizard::NoBackButtonOnStartPage, true);
    QVERIFY(wizard.button(QWizard::BackButton)->isVisible());

    wizard.back();
    qApp->processEvents();
    QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());
}

void tst_QWizard::setOption_NoBackButtonOnLastPage()
{
    for (int i = 0; i < 2; ++i) {
        QWizard wizard;
        wizard.setOption(QWizard::NoBackButtonOnStartPage, false);
        wizard.setOption(QWizard::NoBackButtonOnLastPage, true);
        wizard.setOption(QWizard::DisabledBackButtonOnLastPage, i == 0);    // changes nothing
        wizard.addPage(new QWizardPage);
        wizard.addPage(new QWizardPage);
        wizard.page(1)->setFinalPage(true);     // changes nothing (final != last in general)
        wizard.addPage(new QWizardPage);

        wizard.setStartId(1);
        wizard.show();
        qApp->processEvents();

        QVERIFY(wizard.button(QWizard::BackButton)->isVisible());

        wizard.next();
        qApp->processEvents();
        QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());

        wizard.next();
        qApp->processEvents();
        QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());

        wizard.back();
        qApp->processEvents();
        QVERIFY(wizard.button(QWizard::BackButton)->isVisible());

        wizard.next();
        qApp->processEvents();
        QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());

        wizard.setOption(QWizard::NoBackButtonOnLastPage, false);
        QVERIFY(wizard.button(QWizard::BackButton)->isVisible());

        wizard.setOption(QWizard::NoBackButtonOnLastPage, true);
        QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());

        wizard.addPage(new QWizardPage);
        QVERIFY(!wizard.button(QWizard::BackButton)->isVisible());  // this is maybe wrong
    }
}

void tst_QWizard::setOption_DisabledBackButtonOnLastPage()
{
    QWizard wizard;
    wizard.setOption(QWizard::NoBackButtonOnStartPage, false);
    wizard.setOption(QWizard::DisabledBackButtonOnLastPage, true);
    wizard.addPage(new QWizardPage);
    wizard.addPage(new QWizardPage);
    wizard.page(1)->setFinalPage(true);     // changes nothing (final != last in general)
    wizard.addPage(new QWizardPage);

    wizard.setStartId(1);
    wizard.show();
    qApp->processEvents();

    QVERIFY(wizard.button(QWizard::BackButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    wizard.next();
    qApp->processEvents();
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    wizard.next();
    qApp->processEvents();
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    wizard.back();
    qApp->processEvents();
    QVERIFY(wizard.button(QWizard::BackButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    wizard.next();
    qApp->processEvents();
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    wizard.setOption(QWizard::DisabledBackButtonOnLastPage, false);
    QVERIFY(wizard.button(QWizard::BackButton)->isEnabled());

    wizard.setOption(QWizard::DisabledBackButtonOnLastPage, true);
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    wizard.addPage(new QWizardPage);
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());  // this is maybe wrong
}

void tst_QWizard::setOption_HaveNextButtonOnLastPage()
{
    QWizard wizard;
    wizard.setOption(QWizard::HaveNextButtonOnLastPage, false);
    wizard.addPage(new QWizardPage);
    wizard.addPage(new QWizardPage);
    wizard.page(1)->setFinalPage(true);     // changes nothing (final != last in general)
    wizard.addPage(new QWizardPage);

    wizard.setStartId(1);
    wizard.show();
    qApp->processEvents();

    QVERIFY(wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(wizard.button(QWizard::NextButton)->isEnabled());

    wizard.next();
    QVERIFY(!wizard.button(QWizard::NextButton)->isVisible());

    wizard.setOption(QWizard::HaveNextButtonOnLastPage, true);
    QVERIFY(wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::NextButton)->isEnabled());

    wizard.next();
    QVERIFY(wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::NextButton)->isEnabled());

    wizard.back();
    QVERIFY(wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(wizard.button(QWizard::NextButton)->isEnabled());

    wizard.setOption(QWizard::HaveNextButtonOnLastPage, false);
    QVERIFY(wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(wizard.button(QWizard::NextButton)->isEnabled());

    wizard.next();
    QVERIFY(!wizard.button(QWizard::NextButton)->isVisible());

    wizard.setOption(QWizard::HaveNextButtonOnLastPage, true);
    QVERIFY(wizard.button(QWizard::NextButton)->isVisible());
    QVERIFY(!wizard.button(QWizard::NextButton)->isEnabled());
}

void tst_QWizard::setOption_HaveFinishButtonOnEarlyPages()
{
    QWizard wizard;
    QVERIFY(!wizard.testOption(QWizard::HaveFinishButtonOnEarlyPages));
    wizard.addPage(new QWizardPage);
    wizard.addPage(new QWizardPage);
    wizard.page(1)->setFinalPage(true);
    wizard.addPage(new QWizardPage);

    wizard.show();
    qApp->processEvents();

    QVERIFY(!wizard.button(QWizard::FinishButton)->isVisible());

    wizard.next();
    QVERIFY(wizard.button(QWizard::FinishButton)->isVisible());

    wizard.next();
    QVERIFY(wizard.button(QWizard::FinishButton)->isVisible());

    wizard.back();
    QVERIFY(wizard.button(QWizard::FinishButton)->isVisible());

    wizard.back();
    QVERIFY(!wizard.button(QWizard::FinishButton)->isVisible());

    wizard.setOption(QWizard::HaveFinishButtonOnEarlyPages, true);
    QVERIFY(wizard.button(QWizard::FinishButton)->isVisible());

    wizard.next();
    QVERIFY(wizard.button(QWizard::FinishButton)->isVisible());

    wizard.setOption(QWizard::HaveFinishButtonOnEarlyPages, false);
    QVERIFY(wizard.button(QWizard::FinishButton)->isVisible());

    wizard.back();
    QVERIFY(!wizard.button(QWizard::FinishButton)->isVisible());
}

void tst_QWizard::setOption_NoCancelButton()
{
    for (int i = 0; i < 2; ++i) {
        QWizard wizard;
        wizard.setOption(QWizard::NoCancelButton, true);
        wizard.setOption(QWizard::CancelButtonOnLeft, i == 0);
        wizard.addPage(new QWizardPage);
        wizard.addPage(new QWizardPage);
        wizard.show();
        qApp->processEvents();

        QVERIFY(!wizard.button(QWizard::CancelButton)->isVisible());

        wizard.next();
        QVERIFY(!wizard.button(QWizard::CancelButton)->isVisible());

        wizard.setOption(QWizard::NoCancelButton, false);
        QVERIFY(wizard.button(QWizard::CancelButton)->isVisible());

        wizard.back();
        QVERIFY(wizard.button(QWizard::CancelButton)->isVisible());

        wizard.setOption(QWizard::NoCancelButton, true);
        QVERIFY(!wizard.button(QWizard::CancelButton)->isVisible());
    }
}

void tst_QWizard::setOption_CancelButtonOnLeft()
{
    for (int i = 0; i < 2; ++i) {
        int sign = (i == 0) ? +1 : -1;

        QWizard wizard;
        wizard.setLayoutDirection(i == 0 ? Qt::LeftToRight : Qt::RightToLeft);
        wizard.setOption(QWizard::NoCancelButton, false);
        wizard.setOption(QWizard::CancelButtonOnLeft, true);
        wizard.setOption(QWizard::NoBackButtonOnStartPage, false);
        wizard.addPage(new QWizardPage);
        wizard.addPage(new QWizardPage);
        wizard.show();
        qApp->processEvents();

        const QAbstractButton *refButton = wizard.button((wizard.wizardStyle() == QWizard::AeroStyle)
            ? QWizard::NextButton : QWizard::BackButton);
        const QAbstractButton *refButton2 = wizard.button((wizard.wizardStyle() == QWizard::AeroStyle)
            ? QWizard::FinishButton : QWizard::BackButton);

        QVERIFY(sign * wizard.button(QWizard::CancelButton)->x() < sign * refButton->x());

        wizard.next();
        qApp->processEvents();
        QVERIFY(sign * wizard.button(QWizard::CancelButton)->x() < sign * refButton->x());

        wizard.setOption(QWizard::CancelButtonOnLeft, false);
        qApp->processEvents();
        QVERIFY(sign * wizard.button(QWizard::CancelButton)->x() > sign * refButton2->x());

        wizard.back();
        qApp->processEvents();
        QVERIFY(sign * wizard.button(QWizard::CancelButton)->x() > sign * refButton->x());
    }
}

void tst_QWizard::setOption_HaveHelpButton()
{
    for (int i = 0; i < 2; ++i) {
        QWizard wizard;
        QVERIFY(!wizard.testOption(QWizard::HaveHelpButton));
        wizard.setOption(QWizard::HaveHelpButton, false);
        wizard.setOption(QWizard::HelpButtonOnRight, i == 0);
        wizard.addPage(new QWizardPage);
        wizard.addPage(new QWizardPage);
        wizard.show();
        qApp->processEvents();

        QVERIFY(!wizard.button(QWizard::HelpButton)->isVisible());

        wizard.next();
        QVERIFY(!wizard.button(QWizard::HelpButton)->isVisible());

        wizard.setOption(QWizard::HaveHelpButton, true);
        QVERIFY(wizard.button(QWizard::HelpButton)->isVisible());

        wizard.back();
        QVERIFY(wizard.button(QWizard::HelpButton)->isVisible());

        wizard.setOption(QWizard::HaveHelpButton, false);
        QVERIFY(!wizard.button(QWizard::HelpButton)->isVisible());
    }
}

void tst_QWizard::setOption_HelpButtonOnRight()
{
    for (int i = 0; i < 2; ++i) {
        int sign = (i == 0) ? +1 : -1;

        QWizard wizard;
        wizard.setLayoutDirection(i == 0 ? Qt::LeftToRight : Qt::RightToLeft);
        wizard.setOption(QWizard::HaveHelpButton, true);
        wizard.setOption(QWizard::HelpButtonOnRight, false);
        wizard.setOption(QWizard::NoBackButtonOnStartPage, false);
        wizard.addPage(new QWizardPage);
        wizard.addPage(new QWizardPage);
        wizard.show();
        qApp->processEvents();

        const QAbstractButton *refButton = wizard.button((wizard.wizardStyle() == QWizard::AeroStyle)
            ? QWizard::NextButton : QWizard::BackButton);

        QVERIFY(sign * wizard.button(QWizard::HelpButton)->x() < sign * refButton->x());

        wizard.next();
        qApp->processEvents();
        QVERIFY(sign * wizard.button(QWizard::HelpButton)->x() < sign * refButton->x());

        wizard.setOption(QWizard::HelpButtonOnRight, true);
        qApp->processEvents();
        QVERIFY(sign * wizard.button(QWizard::HelpButton)->x() > sign * refButton->x());

        wizard.back();
        qApp->processEvents();
        QVERIFY(sign * wizard.button(QWizard::HelpButton)->x() > sign * refButton->x());
    }
}

void tst_QWizard::setOption_HaveCustomButtonX()
{
    for (int i = 0; i < 2; ++i) {
        for (int j = 0; j < 2; ++j) {
            for (int k = 0; k < 2; ++k) {
                QWizard wizard;
                wizard.setLayoutDirection(Qt::LeftToRight);
                wizard.addPage(new QWizardPage);
                wizard.addPage(new QWizardPage);
                wizard.show();

                wizard.setButtonText(QWizard::CustomButton1, "Foo");
                wizard.setButton(QWizard::CustomButton2, new QCheckBox("Bar"));
                wizard.button(QWizard::CustomButton3)->setText("Baz");

                wizard.setOption(QWizard::HaveCustomButton1, i == 0);
                wizard.setOption(QWizard::HaveCustomButton2, j == 0);
                wizard.setOption(QWizard::HaveCustomButton3, k == 0);

                QVERIFY(wizard.button(QWizard::CustomButton1)->isHidden() == (i != 0));
                QVERIFY(wizard.button(QWizard::CustomButton2)->isHidden() == (j != 0));
                QVERIFY(wizard.button(QWizard::CustomButton3)->isHidden() == (k != 0));

                if (i + j + k == 0) {
                    qApp->processEvents();
                    QVERIFY(wizard.button(QWizard::CustomButton1)->x()
                            < wizard.button(QWizard::CustomButton2)->x());
                    QVERIFY(wizard.button(QWizard::CustomButton2)->x()
                            < wizard.button(QWizard::CustomButton3)->x());
                }
            }
        }
    }
}

class Operation
{
public:
    virtual void apply(QWizard *) const = 0;
    virtual QString describe() const = 0;
protected:
    virtual ~Operation() {}
};

class SetPage : public Operation
{
    void apply(QWizard *wizard) const
    {
        wizard->restart();
        for (int j = 0; j < page; ++j)
            wizard->next();
    }
    QString describe() const { return QString("set page %1").arg(page); }
    const int page;
public:
    SetPage(int page) : page(page) {}
};

class SetStyle : public Operation
{
    void apply(QWizard *wizard) const { wizard->setWizardStyle(style); }
    QString describe() const { return QString("set style %1").arg(style); }
    const QWizard::WizardStyle style;
public:
    SetStyle(QWizard::WizardStyle style) : style(style) {}
};

class SetOption : public Operation
{
    void apply(QWizard *wizard) const { wizard->setOption(option, on); }
    QString describe() const;
    const QWizard::WizardOption option;
    const bool on;
public:
    SetOption(QWizard::WizardOption option, bool on) : option(option), on(on) {}
};

class OptionInfo
{
    OptionInfo()
    {
        tags[QWizard::IndependentPages]             = "0/IPP";
        tags[QWizard::IgnoreSubTitles]              = "1/IST";
        tags[QWizard::ExtendedWatermarkPixmap]      = "2/EWP";
        tags[QWizard::NoDefaultButton]              = "3/NDB";
        tags[QWizard::NoBackButtonOnStartPage]      = "4/BSP";
        tags[QWizard::NoBackButtonOnLastPage]       = "5/BLP";
        tags[QWizard::DisabledBackButtonOnLastPage] = "6/DLP";
        tags[QWizard::HaveNextButtonOnLastPage]     = "7/NLP";
        tags[QWizard::HaveFinishButtonOnEarlyPages] = "8/FEP";
        tags[QWizard::NoCancelButton]               = "9/NCB";
        tags[QWizard::CancelButtonOnLeft]           = "10/CBL";
        tags[QWizard::HaveHelpButton]               = "11/HHB";
        tags[QWizard::HelpButtonOnRight]            = "12/HBR";
        tags[QWizard::HaveCustomButton1]            = "13/CB1";
        tags[QWizard::HaveCustomButton2]            = "14/CB2";
        tags[QWizard::HaveCustomButton3]            = "15/CB3";

        for (int i = 0; i < 2; ++i) {
            QMap<QWizard::WizardOption, Operation *> operations_;
            foreach (QWizard::WizardOption option, tags.keys())
                operations_[option] = new SetOption(option, i == 1);
            operations << operations_;
        }
    }
    OptionInfo(OptionInfo const&);
    OptionInfo& operator=(OptionInfo const&);
    QMap<QWizard::WizardOption, QString> tags;
    QList<QMap<QWizard::WizardOption, Operation *> > operations;
public:
    static OptionInfo &instance()
    {
        static OptionInfo optionInfo;
        return optionInfo;
    }

    QString tag(QWizard::WizardOption option) const { return tags.value(option); }
    Operation * operation(QWizard::WizardOption option, bool on) const
    { return operations.at(on).value(option); }
    QList<QWizard::WizardOption> options() const { return tags.keys(); }
};

QString SetOption::describe() const
{
    return QString("set opt %1 %2").arg(OptionInfo::instance().tag(option)).arg(on);
}

Q_DECLARE_METATYPE(Operation *)
Q_DECLARE_METATYPE(SetPage *)
Q_DECLARE_METATYPE(SetStyle *)
Q_DECLARE_METATYPE(SetOption *)
Q_DECLARE_METATYPE(QList<Operation *>)

class TestGroup
{
public:
    enum Type {Equality, NonEquality};

    TestGroup(const QString &name = QString("no name"), Type type = Equality)
        : name(name), type(type), nRows_(0) {}

    void reset(const QString &name, Type type = Equality)
    {
        this->name = name;
        this->type = type;
        combinations.clear();
    }

    QList<Operation *> &add()
    { combinations << new QList<Operation *>; return *(combinations.last()); }

    void createTestRows()
    {
        for (int i = 0; i < combinations.count(); ++i) {
            QTest::newRow((name + QString(", row %1").arg(i)).toLatin1().data())
                << (i == 0) << (type == Equality) << *(combinations.at(i));
            ++nRows_;
        }
    }

    int nRows() const { return nRows_; }

private:
    QString name;
    Type type;
    int nRows_;
    QList<QList<Operation *> *> combinations;
};

class IntroPage : public QWizardPage
{
    Q_OBJECT
public:
    IntroPage()
    {
        setTitle(tr("Intro"));
        setSubTitle(tr("Intro Subtitle"));
        QVBoxLayout *layout = new QVBoxLayout;
        layout->addWidget(new QLabel(tr("Intro Label")));
        setLayout(layout);
    }
};

class MiddlePage : public QWizardPage
{
    Q_OBJECT
public:
    MiddlePage()
    {
        setTitle(tr("Middle"));
        setSubTitle(tr("Middle Subtitle"));
        QVBoxLayout *layout = new QVBoxLayout;
        layout->addWidget(new QLabel(tr("Middle Label")));
        setLayout(layout);
    }
};

class ConclusionPage : public QWizardPage
{
    Q_OBJECT
public:
    ConclusionPage()
    {
        setTitle(tr("Conclusion"));
        setSubTitle(tr("Conclusion Subtitle"));
        QVBoxLayout *layout = new QVBoxLayout;
        layout->addWidget(new QLabel(tr("Conclusion Label")));
        setLayout(layout);
    }
};

class TestWizard : public QWizard
{
    Q_OBJECT
    QList<int> pageIds;
    QString opsDescr;
public:
    TestWizard()
    {
        setPixmap(QWizard::BannerPixmap, QPixmap(":/images/banner.png"));
        setPixmap(QWizard::BackgroundPixmap, QPixmap(":/images/background.png"));
        setPixmap(QWizard::WatermarkPixmap, QPixmap(":/images/watermark.png"));
        setPixmap(QWizard::LogoPixmap, QPixmap(":/images/logo.png"));
        setButtonText(QWizard::CustomButton1, "custom 1");
        setButtonText(QWizard::CustomButton2, "custom 2");
        setButtonText(QWizard::CustomButton3, "custom 3");
        pageIds << addPage(new IntroPage);
        pageIds << addPage(new MiddlePage);
        pageIds << addPage(new ConclusionPage);

        // Disable antialiased font rendering since this may sometimes result in tiny
        // and (apparent) non-deterministic pixel variations between images expected to be
        // identical. This may only be a problem on X11.
        QFont f = font();
        f.setStyleStrategy(QFont::NoAntialias);
        setFont(f);

        // ### Required to work with a deficiency(?) in QWizard:
//        setFixedSize(800, 600);
    }

    ~TestWizard()
    {
        foreach (int id, pageIds)
            delete page(id);
    }

    void applyOperations(const QList<Operation *> &operations)
    {
        foreach (Operation * op, operations) {
            if (op) {
                op->apply(this);
                opsDescr += QString("(%1) ").arg(op->describe());
            }
        }
    }

    QImage createImage() const
    {
        return QPixmap::grabWidget(const_cast<TestWizard *>(this))
            .toImage().convertToFormat(QImage::Format_ARGB32);
    }

    QString operationsDescription() const { return opsDescr; }
};

class CombinationsTestData
{
    TestGroup testGroup;
    QList<Operation *> pageOps;
    QList<Operation *> styleOps;
    QMap<bool, QList<Operation *> *> setAllOptions;
public:
    CombinationsTestData()
    {
        QTest::addColumn<bool>("ref");
        QTest::addColumn<bool>("testEquality");
        QTest::addColumn<QList<Operation *> >("operations");
        pageOps << new SetPage(0) << new SetPage(1) << new SetPage(2);
        styleOps << new SetStyle(QWizard::ClassicStyle) << new SetStyle(QWizard::ModernStyle)
                 << new SetStyle(QWizard::MacStyle);
#define SETPAGE(page) pageOps.at(page)
#define SETSTYLE(style) styleOps.at(style)
#define OPT(option, on) OptionInfo::instance().operation(option, on)
#define CLROPT(option) OPT(option, false)
#define SETOPT(option) OPT(option, true)
        setAllOptions[false] = new QList<Operation *>;
        setAllOptions[true]  = new QList<Operation *>;
        foreach (QWizard::WizardOption option, OptionInfo::instance().options()) {
            *setAllOptions.value(false) << CLROPT(option);
            *setAllOptions.value(true) << SETOPT(option);
        }
#define CLRALLOPTS *setAllOptions.value(false)
#define SETALLOPTS *setAllOptions.value(true)
    }

    int nRows() const { return testGroup.nRows(); }

    // Creates "all" possible test rows. (WARNING: This typically makes the test take too long!)
    void createAllTestRows()
    {
        testGroup.reset("testAll 1.1");
        testGroup.add(); // i.e. no operations applied!
        testGroup.add() << SETPAGE(0);
        testGroup.add() << SETSTYLE(0);
        testGroup.add() << SETPAGE(0) << SETSTYLE(0);
        testGroup.add() << SETSTYLE(0) << SETPAGE(0);
        testGroup.createTestRows();

        testGroup.reset("testAll 2.1");
        testGroup.add();
        testGroup.add() << CLRALLOPTS;
        testGroup.createTestRows();

        testGroup.reset("testAll 2.2");
        testGroup.add() << SETALLOPTS;
        testGroup.add() << SETALLOPTS << SETALLOPTS;
        testGroup.createTestRows();

        testGroup.reset("testAll 2.3");
        testGroup.add() << CLRALLOPTS;
        testGroup.add() << CLRALLOPTS << CLRALLOPTS;
        testGroup.createTestRows();

        testGroup.reset("testAll 2.4");
        testGroup.add() << CLRALLOPTS;
        testGroup.add() << SETALLOPTS << CLRALLOPTS;
        testGroup.createTestRows();

        testGroup.reset("testAll 2.5");
        testGroup.add() << SETALLOPTS;
        testGroup.add() << CLRALLOPTS << SETALLOPTS;
        testGroup.createTestRows();

        testGroup.reset("testAll 2.6");
        testGroup.add() << SETALLOPTS;
        testGroup.add() << SETALLOPTS << CLRALLOPTS << SETALLOPTS;
        testGroup.createTestRows();

        testGroup.reset("testAll 2.7");
        testGroup.add() << CLRALLOPTS;
        testGroup.add() << CLRALLOPTS << SETALLOPTS << CLRALLOPTS;
        testGroup.createTestRows();

        for (int i = 0; i < 2; ++i) {
            QList<Operation *> setOptions = *setAllOptions.value(i == 1);

            testGroup.reset("testAll 3.1");
            testGroup.add() << setOptions;
            testGroup.add() << SETPAGE(0) << setOptions;
            testGroup.add() << setOptions << SETPAGE(0);
            testGroup.add() << SETSTYLE(0) << setOptions;
            testGroup.add() << setOptions << SETSTYLE(0);
            testGroup.add() << setOptions << SETPAGE(0) << SETSTYLE(0);
            testGroup.add() << SETPAGE(0) << setOptions << SETSTYLE(0);
            testGroup.add() << SETPAGE(0) << SETSTYLE(0) << setOptions;
            testGroup.add() << setOptions << SETSTYLE(0) << SETPAGE(0);
            testGroup.add() << SETSTYLE(0) << setOptions << SETPAGE(0);
            testGroup.add() << SETSTYLE(0) << SETPAGE(0) << setOptions;
            testGroup.createTestRows();
        }

        foreach (Operation *pageOp, pageOps) {
            testGroup.reset("testAll 4.1");
            testGroup.add() << pageOp;
            testGroup.add() << pageOp << pageOp;
            testGroup.createTestRows();

            for (int i = 0; i < 2; ++i) {
                QList<Operation *> optionOps = *setAllOptions.value(i == 1);
                testGroup.reset("testAll 4.2");
                testGroup.add() << optionOps << pageOp;
                testGroup.add() << pageOp << optionOps;
                testGroup.createTestRows();

                foreach (QWizard::WizardOption option, OptionInfo::instance().options()) {
                    Operation *optionOp = OPT(option, i == 1);
                    testGroup.reset("testAll 4.3");
                    testGroup.add() << optionOp << pageOp;
                    testGroup.add() << pageOp << optionOp;
                    testGroup.createTestRows();
                }
            }
        }

        foreach (Operation *styleOp, styleOps) {
            testGroup.reset("testAll 5.1");
            testGroup.add() << styleOp;
            testGroup.add() << styleOp << styleOp;
            testGroup.createTestRows();

            for (int i = 0; i < 2; ++i) {
                QList<Operation *> optionOps = *setAllOptions.value(i == 1);
                testGroup.reset("testAll 5.2");
                testGroup.add() << optionOps << styleOp;
                testGroup.add() << styleOp << optionOps;
                testGroup.createTestRows();

                foreach (QWizard::WizardOption option, OptionInfo::instance().options()) {
                    Operation *optionOp = OPT(option, i == 1);
                    testGroup.reset("testAll 5.3");
                    testGroup.add() << optionOp << styleOp;
                    testGroup.add() << styleOp << optionOp;
                    testGroup.createTestRows();
                }
            }
        }

        foreach (Operation *pageOp, pageOps) {
            foreach (Operation *styleOp, styleOps) {

                testGroup.reset("testAll 6.1");
                testGroup.add() << pageOp;
                testGroup.add() << pageOp << pageOp;
                testGroup.createTestRows();

                testGroup.reset("testAll 6.2");
                testGroup.add() << styleOp;
                testGroup.add() << styleOp << styleOp;
                testGroup.createTestRows();

                testGroup.reset("testAll 6.3");
                testGroup.add() << pageOp << styleOp;
                testGroup.add() << styleOp << pageOp;
                testGroup.createTestRows();

                for (int i = 0; i < 2; ++i) {
                    QList<Operation *> optionOps = *setAllOptions.value(i == 1);
                    testGroup.reset("testAll 6.4");
                    testGroup.add() << optionOps << pageOp << styleOp;
                    testGroup.add() << pageOp << optionOps << styleOp;
                    testGroup.add() << pageOp << styleOp << optionOps;
                    testGroup.add() << optionOps << styleOp << pageOp;
                    testGroup.add() << styleOp << optionOps << pageOp;
                    testGroup.add() << styleOp << pageOp << optionOps;
                    testGroup.createTestRows();

                    foreach (QWizard::WizardOption option, OptionInfo::instance().options()) {
                        Operation *optionOp = OPT(option, i == 1);
                        testGroup.reset("testAll 6.5");
                        testGroup.add() << optionOp << pageOp << styleOp;
                        testGroup.add() << pageOp << optionOp << styleOp;
                        testGroup.add() << pageOp << styleOp << optionOp;
                        testGroup.add() << optionOp << styleOp << pageOp;
                        testGroup.add() << styleOp << optionOp << pageOp;
                        testGroup.add() << styleOp << pageOp << optionOp;
                        testGroup.createTestRows();
                    }
                }
            }
        }

        testGroup.reset("testAll 7.1", TestGroup::NonEquality);
        testGroup.add() << SETPAGE(0);
        testGroup.add() << SETPAGE(1);
        testGroup.add() << SETPAGE(2);
        testGroup.createTestRows();

        testGroup.reset("testAll 7.2", TestGroup::NonEquality);
        testGroup.add() << SETSTYLE(0);
        testGroup.add() << SETSTYLE(1);
        testGroup.add() << SETSTYLE(2);
        testGroup.createTestRows();

        // more to follow ...
    }

    // Creates a "small" number of interesting test rows.
    void createTestRows1()
    {
        testGroup.reset("test1 1");
        testGroup.add() << SETPAGE(0) << SETOPT(QWizard::HaveCustomButton3);
        testGroup.add() << SETOPT(QWizard::HaveCustomButton3);
        testGroup.createTestRows();

        testGroup.reset("test1 2");
        testGroup.add() << SETOPT(QWizard::HaveFinishButtonOnEarlyPages) << SETPAGE(0);
        testGroup.add() << SETPAGE(0) << SETOPT(QWizard::HaveFinishButtonOnEarlyPages);
        testGroup.createTestRows();

        testGroup.reset("test1 3");
        testGroup.add() << SETPAGE(2) << SETOPT(QWizard::HaveNextButtonOnLastPage);
        testGroup.add() << SETOPT(QWizard::HaveNextButtonOnLastPage) << SETPAGE(2);
        testGroup.createTestRows();
    }
};

void tst_QWizard::combinations_data()
{
    CombinationsTestData combTestData;
//    combTestData.createAllTestRows();
    combTestData.createTestRows1();

//    qDebug() << "test rows:" << combTestData.nRows();
}

void tst_QWizard::combinations()
{
#ifdef Q_OS_WINCE
    QSKIP("Too much memory usage for testing on CE emulator", SkipAll);
#endif

    QFETCH(bool, ref);
    QFETCH(bool, testEquality);
    QFETCH(QList<Operation *>, operations);

    TestWizard wizard;
#if !defined(QT_NO_STYLE_WINDOWSVISTA)
    if (wizard.wizardStyle() == QWizard::AeroStyle)
        return; // ### TODO: passes/fails in a unpredictable way, so disable for now
#endif
    wizard.applyOperations(operations);
    wizard.show(); // ### TODO: Required, but why? Should wizard.createImage() care?

    static QImage refImage;
    static QSize refMinSize;
    static QString refDescr;

    if (ref) {
        refImage = wizard.createImage();
        refMinSize = wizard.minimumSizeHint();
        refDescr = wizard.operationsDescription();
        return;
    }

    QImage image = wizard.createImage();

    bool minSizeTest = wizard.minimumSizeHint() != refMinSize;
    bool imageTest = image != refImage;
    QLatin1String otor("!=");
    QLatin1String reason("differ");

    if (!testEquality) {
        minSizeTest = false; // the image test is sufficient!
        imageTest = !imageTest;
        otor = QLatin1String("==");
        reason = QLatin1String("are equal");
    }

    if (minSizeTest)
        qDebug() << "minimum sizes" << reason.latin1() << ";" << wizard.minimumSizeHint()
                 << otor.latin1() << refMinSize;

    if (imageTest)
        qDebug() << "images" << reason.latin1();

    if (minSizeTest || imageTest) {
        qDebug() << "\t      row 0 operations:" << refDescr.toLatin1();
        qDebug() << "\tcurrent row operations:" << wizard.operationsDescription().toLatin1();
        QVERIFY(false);
    }
}

class WizardPage : public QWizardPage
{
    Q_OBJECT
    bool shown_;
    void showEvent(QShowEvent *) { shown_ = true; }
    void hideEvent(QHideEvent *) { shown_ = false; }
public:
    WizardPage() : shown_(false) {}
    bool shown() const { return shown_; }
};

class WizardPages
{
    QList<WizardPage *> pages;
public:
    void add(WizardPage *page) { pages << page; }
    QList<WizardPage *> all() const { return pages; }
    QList<WizardPage *> shown() const
    {
        QList<WizardPage *> result;
        foreach (WizardPage *page, pages)
            if (page->shown())
                result << page;
        return result;
    }
};

void tst_QWizard::showCurrentPageOnly()
{
    QWizard wizard;
    WizardPages pages;
    for (int i = 0; i < 5; ++i) {
        pages.add(new WizardPage);
        wizard.addPage(pages.all().last());
    }

    wizard.show();

    QCOMPARE(pages.shown().count(), 1);
    QCOMPARE(pages.shown().first(), pages.all().first());

    const int steps = 2;
    for (int i = 0; i < steps; ++i)
        wizard.next();

    QCOMPARE(pages.shown().count(), 1);
    QCOMPARE(pages.shown().first(), pages.all().at(steps));

    wizard.restart();

    QCOMPARE(pages.shown().count(), 1);
    QCOMPARE(pages.shown().first(), pages.all().first());
}

void tst_QWizard::setButtonText()
{
    QWizard wizard;
    wizard.setWizardStyle(QWizard::ClassicStyle);
    QWizardPage* page1 = new QWizardPage;
    QWizardPage* page2 = new QWizardPage;
    wizard.addPage(page1);
    wizard.addPage(page2);

    wizard.show();
    qApp->processEvents();
    QVERIFY(wizard.button(QWizard::NextButton)->text().contains("Next"));
    QVERIFY(wizard.buttonText(QWizard::NextButton).contains("Next"));
    QVERIFY(page1->buttonText(QWizard::NextButton).contains("Next"));
    QVERIFY(page2->buttonText(QWizard::NextButton).contains("Next"));

    page2->setButtonText(QWizard::NextButton, "Page2");
    QVERIFY(wizard.button(QWizard::NextButton)->text().contains("Next"));
    QVERIFY(wizard.buttonText(QWizard::NextButton).contains("Next"));
    QVERIFY(page1->buttonText(QWizard::NextButton).contains("Next"));
    QCOMPARE(page2->buttonText(QWizard::NextButton), QString("Page2"));

    wizard.next();
    qApp->processEvents();
    QCOMPARE(wizard.button(QWizard::NextButton)->text(), QString("Page2"));
    QVERIFY(wizard.buttonText(QWizard::NextButton).contains("Next"));
    QVERIFY(page1->buttonText(QWizard::NextButton).contains("Next"));
    QCOMPARE(page2->buttonText(QWizard::NextButton), QString("Page2"));

    wizard.back();
    qApp->processEvents();
    QVERIFY(wizard.button(QWizard::NextButton)->text().contains("Next"));
    QVERIFY(wizard.buttonText(QWizard::NextButton).contains("Next"));
    QVERIFY(page1->buttonText(QWizard::NextButton).contains("Next"));
    QCOMPARE(page2->buttonText(QWizard::NextButton), QString("Page2"));

    wizard.setButtonText(QWizard::NextButton, "Wizard");
    QVERIFY(wizard.button(QWizard::NextButton)->text().contains("Wizard"));
    QCOMPARE(wizard.buttonText(QWizard::NextButton), QString("Wizard"));
    QCOMPARE(page1->buttonText(QWizard::NextButton), QString("Wizard"));
    QCOMPARE(page2->buttonText(QWizard::NextButton), QString("Page2"));

    wizard.next();
    qApp->processEvents();
    QCOMPARE(wizard.button(QWizard::NextButton)->text(), QString("Page2"));
    QVERIFY(wizard.buttonText(QWizard::NextButton).contains("Wizard"));
    QCOMPARE(page1->buttonText(QWizard::NextButton), QString("Wizard"));
    QCOMPARE(page2->buttonText(QWizard::NextButton), QString("Page2"));
}

void tst_QWizard::setCommitPage()
{
    QWizard wizard;
    QWizardPage* page1 = new QWizardPage;
    QWizardPage* page2 = new QWizardPage;
    wizard.addPage(page1);
    wizard.addPage(page2);
    wizard.show();
    qApp->processEvents();

    QVERIFY(!page1->isCommitPage());
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    wizard.next();
    QVERIFY(wizard.button(QWizard::BackButton)->isEnabled());

    page1->setCommitPage(true);
    QVERIFY(page1->isCommitPage());

    wizard.back();
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    wizard.next();
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    page1->setCommitPage(false);
    QVERIFY(!page1->isCommitPage());

    wizard.back();
    QVERIFY(!wizard.button(QWizard::BackButton)->isEnabled());

    wizard.next();
    QVERIFY(wizard.button(QWizard::BackButton)->isEnabled());

    // ### test relabeling of the Cancel button to "Close" once this is implemented
}

void tst_QWizard::setWizardStyle()
{
    QWizard wizard;
    wizard.addPage(new QWizardPage);
    wizard.show();
    qApp->processEvents();

    // defaults
    const bool styleHintMatch =
        wizard.wizardStyle() ==
        QWizard::WizardStyle(wizard.style()->styleHint(QStyle::SH_WizardStyle, 0, &wizard));
#if !defined(QT_NO_STYLE_WINDOWSVISTA)
    QVERIFY(styleHintMatch || wizard.wizardStyle() == QWizard::AeroStyle);
#else
    QVERIFY(styleHintMatch);
#endif

    // set/get consistency
    for (int wstyle = 0; wstyle < QWizard::NStyles; ++wstyle) {
        wizard.setWizardStyle((QWizard::WizardStyle)wstyle);
        QCOMPARE((int)wizard.wizardStyle(), wstyle);
    }
}

void tst_QWizard::removePage()
{
    QWizard wizard;
    QWizardPage *page0 = new QWizardPage;
    QWizardPage *page1 = new QWizardPage;
    QWizardPage *page2 = new QWizardPage;
    QWizardPage *page3 = new QWizardPage;

    wizard.setPage(0, page0);
    wizard.setPage(1, page1);
    wizard.setPage(2, page2);
    wizard.setPage(3, page3);

    wizard.restart();
    QCOMPARE(wizard.pageIds().size(), 4);
    QCOMPARE(wizard.visitedPages().size(), 1);

    // Removing a non-existent page
    wizard.removePage(4);
    QCOMPARE(wizard.pageIds().size(), 4);

    // Removing and then reinserting a page
    QCOMPARE(wizard.pageIds().size(), 4);
    QVERIFY(wizard.pageIds().contains(2));
    wizard.removePage(2);
    QCOMPARE(wizard.pageIds().size(), 3);
    QVERIFY(!wizard.pageIds().contains(2));
    wizard.setPage(2, page2);
    QCOMPARE(wizard.pageIds().size(), 4);
    QVERIFY(wizard.pageIds().contains(2));

    // Removing the same page twice
    wizard.removePage(2); // restore
    QCOMPARE(wizard.pageIds().size(), 3);
    QVERIFY(!wizard.pageIds().contains(2));
    wizard.removePage(2);
    QCOMPARE(wizard.pageIds().size(), 3);
    QVERIFY(!wizard.pageIds().contains(2));

    // Removing a page not in the history
    wizard.setPage(2, page2); // restore
    wizard.restart();
    wizard.next();
    QCOMPARE(wizard.visitedPages().size(), 2);
    QCOMPARE(wizard.currentPage(), page1);
    wizard.removePage(2);
    QCOMPARE(wizard.visitedPages().size(), 2);
    QVERIFY(!wizard.pageIds().contains(2));
    QCOMPARE(wizard.currentPage(), page1);

    // Removing a page in the history before the current page
    wizard.setPage(2, page2); // restore
    wizard.restart();
    wizard.next();
    QCOMPARE(wizard.visitedPages().size(), 2);
    QCOMPARE(wizard.currentPage(), page1);
    wizard.removePage(0);
    QCOMPARE(wizard.visitedPages().size(), 1);
    QVERIFY(!wizard.visitedPages().contains(0));
    QVERIFY(!wizard.pageIds().contains(0));
    QCOMPARE(wizard.currentPage(), page1);

    // Remove the current page which is not the first one in the history
    wizard.setPage(0, page0); // restore
    wizard.restart();
    wizard.next();
    QCOMPARE(wizard.visitedPages().size(), 2);
    QCOMPARE(wizard.currentPage(), page1);
    wizard.removePage(1);
    QCOMPARE(wizard.visitedPages().size(), 1);
    QVERIFY(!wizard.visitedPages().contains(1));
    QVERIFY(!wizard.pageIds().contains(1));
    QCOMPARE(wizard.currentPage(), page0);

    // Remove the current page which is the first (and only) one in the history
    wizard.removePage(0);
    QCOMPARE(wizard.visitedPages().size(), 1);
    QVERIFY(!wizard.visitedPages().contains(0));
    QCOMPARE(wizard.pageIds().size(), 2);
    QVERIFY(!wizard.pageIds().contains(0));
    QCOMPARE(wizard.currentPage(), page2);
    //
    wizard.removePage(2);
    QCOMPARE(wizard.visitedPages().size(), 1);
    QVERIFY(!wizard.visitedPages().contains(2));
    QCOMPARE(wizard.pageIds().size(), 1);
    QVERIFY(!wizard.pageIds().contains(2));
    QCOMPARE(wizard.currentPage(), page3);
    //
    wizard.removePage(3);
    QVERIFY(wizard.visitedPages().empty());
    QVERIFY(wizard.pageIds().empty());
    QCOMPARE(wizard.currentPage(), static_cast<QWizardPage *>(0));
}

void tst_QWizard::task161660_buttonSpacing()
{
#ifndef QT_NO_STYLE_PLASTIQUE
    QString origStyle = QApplication::style()->objectName();
    QApplication::setStyle(new QPlastiqueStyle);
    QWizard wizard;
    wizard.addPage(new QWizardPage);
    wizard.show();
    const QAbstractButton *finishButton = wizard.button(QWizard::FinishButton);
    const QAbstractButton *cancelButton = wizard.button(QWizard::CancelButton);
    const int spacing = cancelButton->geometry().left() - finishButton->geometry().right() - 1;
    QCOMPARE(spacing, wizard.style()->layoutSpacing(
                 QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Horizontal));
    QApplication::setStyle(origStyle);
#endif
}

class task177716_CommitPage : public QWizardPage
{
    Q_OBJECT
public:
    task177716_CommitPage()
    {
        setCommitPage(true);
        QVBoxLayout *layout = new QVBoxLayout;
        ledit = new QLineEdit(this);
        registerField("foo*", ledit);
        layout->addWidget(ledit);
        setLayout(layout);
    }
    QLineEdit *ledit;
};

void tst_QWizard::task177716_disableCommitButton()
{
    QWizard wizard;
    task177716_CommitPage *commitPage = new task177716_CommitPage;
    wizard.addPage(commitPage);
    // the following page must be there to prevent the first page from replacing the Commit button
    // with the Finish button:
    wizard.addPage(new QWizardPage);
    wizard.show();
    QVERIFY(!wizard.button(QWizard::CommitButton)->isEnabled());
    commitPage->ledit->setText("some non-empty text");
    QVERIFY(wizard.button(QWizard::CommitButton)->isEnabled());
    commitPage->ledit->setText("");
    QVERIFY(!wizard.button(QWizard::CommitButton)->isEnabled());
}

class WizardPage_task183550 : public QWizardPage
{
public:
    WizardPage_task183550(QWidget *parent = 0)
        : QWizardPage(parent)
        , treeWidget(new QTreeWidget)
        , verticalPolicy(QSizePolicy::MinimumExpanding) {}
    void enableVerticalExpansion() { verticalPolicy = QSizePolicy::MinimumExpanding; }
    void disableVerticalExpansion() { verticalPolicy = QSizePolicy::Preferred; }
    int treeWidgetHeight() const { return treeWidget->height(); }
    int treeWidgetSizeHintHeight() const { return treeWidget->sizeHint().height(); }

private:
    QTreeWidget *treeWidget;
    QSizePolicy::Policy verticalPolicy;

    void initializePage()
    {
        if (layout())
            delete layout();
        if (treeWidget)
            delete treeWidget;

        QLayout *layout_ = new QVBoxLayout(this);
        layout_->addWidget(treeWidget = new QTreeWidget);
 
        QSizePolicy policy = sizePolicy();
        policy.setVerticalPolicy(verticalPolicy);
        treeWidget->setSizePolicy(policy);
    }
};

void tst_QWizard::task183550_stretchFactor()
{
    QWizard wizard;
    WizardPage_task183550 *page1 = new WizardPage_task183550;
    WizardPage_task183550 *page2 = new WizardPage_task183550;
    wizard.addPage(page1);
    wizard.addPage(page2);
    wizard.resize(500, 2 * page2->treeWidgetSizeHintHeight());
    wizard.show();

    QCOMPARE(wizard.currentPage(), static_cast<QWizardPage*>(page1));

    // ----
    page2->disableVerticalExpansion();
    wizard.next();
    QCOMPARE(wizard.currentPage(), static_cast<QWizardPage*>(page2));
    QVERIFY(page2->treeWidgetHeight() == page2->treeWidgetSizeHintHeight());

    wizard.back();
    QCOMPARE(wizard.currentPage(), static_cast<QWizardPage*>(page1));

    // ----
    page2->enableVerticalExpansion();
    wizard.next();
    QCOMPARE(wizard.currentPage(), static_cast<QWizardPage*>(page2));
    QVERIFY(page2->treeWidgetHeight() > page2->treeWidgetSizeHintHeight());

    wizard.back();
    QCOMPARE(wizard.currentPage(), static_cast<QWizardPage*>(page1));

    // ----
    page2->disableVerticalExpansion();
    wizard.next();
    QCOMPARE(wizard.currentPage(), static_cast<QWizardPage*>(page2));
    QVERIFY(page2->treeWidgetHeight() == page2->treeWidgetSizeHintHeight());
}

void tst_QWizard::task161658_alignments()
{
    QWizard wizard;
    wizard.setWizardStyle(QWizard::MacStyle);

    QWizardPage page;
    page.setTitle("Title");
    page.setSubTitle("SUBTITLE#:  The subtitle bust be alligned with the rest of the widget");

    QLabel label1("Field:");
    QLineEdit lineEdit1;
    QGridLayout *layout = new QGridLayout;
    layout->addWidget(&label1, 0, 0);
    layout->addWidget(&lineEdit1, 0, 1);
    page.setLayout(layout);

    int idx = wizard.addPage(&page);
    wizard.setStartId(idx);
    wizard.show();
    QTest::qWait(100);

    foreach (QLabel *subtitleLabel, qFindChildren<QLabel *>(&wizard)) {
        if (subtitleLabel->text().startsWith("SUBTITLE#")) {
            QCOMPARE(lineEdit1.mapToGlobal(lineEdit1.contentsRect().bottomRight()).x(),
                     subtitleLabel->mapToGlobal(subtitleLabel->contentsRect().bottomRight()).x());
            return;
        }
    }
    QFAIL("Subtitle label not found");
}

void tst_QWizard::task177022_setFixedSize()
{
    int width = 300;
    int height = 200;
    QWizard wiz;
    QWizardPage page1;
    QWizardPage page2;
    wiz.addPage(&page1);
    wiz.addPage(&page2);
    wiz.setFixedSize(width, height);
    if (wiz.wizardStyle() == QWizard::AeroStyle)
        QEXPECT_FAIL("", "this probably relates to non-client area hack for AeroStyle titlebar "
                     "effect; not sure if it qualifies as a bug or not", Continue);
    QCOMPARE(wiz.size(), QSize(width, height));
    QCOMPARE(wiz.minimumWidth(), width);
    QCOMPARE(wiz.minimumHeight(), height);
    QCOMPARE(wiz.maximumWidth(), width);
    QCOMPARE(wiz.maximumHeight(), height);

    wiz.show();
    QTest::qWait(100);
    QCOMPARE(wiz.size(), QSize(width, height));
    QCOMPARE(wiz.minimumWidth(), width);
    QCOMPARE(wiz.minimumHeight(), height);
    QCOMPARE(wiz.maximumWidth(), width);
    QCOMPARE(wiz.maximumHeight(), height);

    wiz.next();
    QTest::qWait(100);
    QCOMPARE(wiz.size(), QSize(width, height));
    QCOMPARE(wiz.minimumWidth(), width);
    QCOMPARE(wiz.minimumHeight(), height);
    QCOMPARE(wiz.maximumWidth(), width);
    QCOMPARE(wiz.maximumHeight(), height);

}

void tst_QWizard::task248107_backButton()
{
    QWizard wizard;
    QWizardPage page1;
    QWizardPage page2;
    QWizardPage page3;
    QWizardPage page4;
    wizard.addPage(&page1);
    wizard.addPage(&page2);
    wizard.addPage(&page3);
    wizard.addPage(&page4);

    wizard.show();
    QTest::qWait(100);
    QCOMPARE(wizard.currentPage(), &page1);

    QTest::mouseClick(wizard.button(QWizard::NextButton), Qt::LeftButton);
    QCOMPARE(wizard.currentPage(), &page2);

    QTest::mouseClick(wizard.button(QWizard::NextButton), Qt::LeftButton);
    QCOMPARE(wizard.currentPage(), &page3);

    QTest::mouseClick(wizard.button(QWizard::NextButton), Qt::LeftButton);
    QCOMPARE(wizard.currentPage(), &page4);

    QTest::mouseClick(wizard.button(QWizard::BackButton), Qt::LeftButton);
    QCOMPARE(wizard.currentPage(), &page3);

    QTest::mouseClick(wizard.button(QWizard::BackButton), Qt::LeftButton);
    QCOMPARE(wizard.currentPage(), &page2);

    QTest::mouseClick(wizard.button(QWizard::BackButton), Qt::LeftButton);
    QCOMPARE(wizard.currentPage(), &page1);
}

QTEST_MAIN(tst_QWizard)
#include "tst_qwizard.moc"