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** This file is part of the test suite of the Qt Toolkit.

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#include <QtTest/QtTest>

#include <qtabwidget.h>

#include <qdebug.h>

#include <qapplication.h>

#include <qlabel.h>

//TESTED_CLASS=

//TESTED_FILES=

#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE)

#  include <qt_windows.h>

#define Q_CHECK_PAINTEVENTS \

    if (::SwitchDesktop(::GetThreadDesktop(::GetCurrentThreadId())) == 0) \

        QSKIP("desktop is not visible, this test would fail", SkipSingle);

#else

#define Q_CHECK_PAINTEVENTS

#endif

#if defined(Q_WS_X11)

#  include <private/qt_x11_p.h>

#  include <qx11info_x11.h>

#elif defined(Q_WS_QWS)

# include <qwindowsystem_qws.h>

#endif

#ifndef Q_CHECK_PAINTEVENTS

#define Q_CHECK_PAINTEVENTS

#endif //Q_CHECK_PAINTEVENTS

class QTabWidgetChild:public QTabWidget {

  public:

    QTabWidgetChild():tabCount(0) {

        QVERIFY(tabBar() != NULL);

        QWidget *w = new QWidget;

        int index = addTab(w, "test");

          QCOMPARE(tabCount, 1);

          removeTab(index);

          QCOMPARE(tabCount, 0);

          // Test bad arguments

          // This will assert, so don't do it :)

          //setTabBar(NULL);

    };

  protected:

    virtual void tabInserted(int /*index */ ) {

        tabCount++;

    };

    virtual void tabRemoved(int /*index */ ) {

        tabCount--;

    };

    int tabCount;

};

class tst_QTabWidget:public QObject {

  Q_OBJECT

  public:

    tst_QTabWidget();

  public slots:

    void init();

    void cleanup();

  private slots:

    void getSetCheck();

    void testChild();

    void addRemoveTab();

    void tabPosition();

    void tabEnabled();

    void tabText();

    void tabShape();

    void tabTooltip();

    void tabIcon();

    void indexOf();

    void currentWidget();

    void currentIndex();

    void cornerWidget();

    void removeTab();

    void clear();

    void keyboardNavigation();

    void paintEventCount();

  private:

    int addPage();

    void removePage(int index);

    QTabWidget *tw;

};

// Testing get/set functions

void tst_QTabWidget::getSetCheck()

{

    QTabWidget obj1;

    QWidget *w1 = new QWidget;

    QWidget *w2 = new QWidget;

    QWidget *w3 = new QWidget;

    QWidget *w4 = new QWidget;

    QWidget *w5 = new QWidget;

    obj1.addTab(w1, "Page 1");

    obj1.addTab(w2, "Page 2");

    obj1.addTab(w3, "Page 3");

    obj1.addTab(w4, "Page 4");

    obj1.addTab(w5, "Page 5");

    // TabShape QTabWidget::tabShape()

    // void QTabWidget::setTabShape(TabShape)

    obj1.setTabShape(QTabWidget::TabShape(QTabWidget::Rounded));

    QCOMPARE(QTabWidget::TabShape(QTabWidget::Rounded), obj1.tabShape());

    obj1.setTabShape(QTabWidget::TabShape(QTabWidget::Triangular));

    QCOMPARE(QTabWidget::TabShape(QTabWidget::Triangular), obj1.tabShape());

    // int QTabWidget::currentIndex()

    // void QTabWidget::setCurrentIndex(int)

    obj1.setCurrentIndex(0);

    QCOMPARE(0, obj1.currentIndex());

    obj1.setCurrentIndex(INT_MIN);

    QCOMPARE(0, obj1.currentIndex());

    obj1.setCurrentIndex(INT_MAX);

    QCOMPARE(0, obj1.currentIndex());

    obj1.setCurrentIndex(4);

    QCOMPARE(4, obj1.currentIndex());

    // QWidget * QTabWidget::currentWidget()

    // void QTabWidget::setCurrentWidget(QWidget *)

    obj1.setCurrentWidget(w1);

    QCOMPARE(w1, obj1.currentWidget());

    obj1.setCurrentWidget(w5);

    QCOMPARE(w5, obj1.currentWidget());

    obj1.setCurrentWidget((QWidget *)0);

    QCOMPARE(w5, obj1.currentWidget()); // current not changed

}

tst_QTabWidget::tst_QTabWidget()

{

}

void tst_QTabWidget::init()

{

    tw = new QTabWidget(0);

    QCOMPARE(tw->count(), 0);

    QCOMPARE(tw->currentIndex(), -1);

    QVERIFY(tw->currentWidget() == NULL);

}

void tst_QTabWidget::cleanup()

{

    delete tw;

    tw = 0;

}

void tst_QTabWidget::testChild()

{

    QTabWidgetChild t;

}

#define LABEL "TEST"

#define TIP "TIP"

int tst_QTabWidget::addPage()

{

    QWidget *w = new QWidget();

    return tw->addTab(w, LABEL);

}

void tst_QTabWidget::removePage(int index)

{

    QWidget *w = tw->widget(index);

    tw->removeTab(index);

    delete w;

}

/**

 * Tests:

 * addTab(...) which really calls -> insertTab(...)

 * widget(...)

 * removeTab(...);

 * If this fails then many others probably will too.

 */

void tst_QTabWidget::addRemoveTab()

{

    // Test bad arguments

    tw->addTab(NULL, LABEL);

    QCOMPARE(tw->count(), 0);

    tw->removeTab(-1);

    QCOMPARE(tw->count(), 0);

    QVERIFY(tw->widget(-1) == 0);

    QWidget *w = new QWidget();

    int index = tw->addTab(w, LABEL);

    // return value

    QCOMPARE(tw->indexOf(w), index);

    QCOMPARE(tw->count(), 1);

    QVERIFY(tw->widget(index) == w);

    QCOMPARE(tw->tabText(index), QString(LABEL));

    removePage(index);

    QCOMPARE(tw->count(), 0);

}

void tst_QTabWidget::tabPosition()

{

    tw->setTabPosition(QTabWidget::North);

    QCOMPARE(tw->tabPosition(), QTabWidget::North);

    tw->setTabPosition(QTabWidget::South);

    QCOMPARE(tw->tabPosition(), QTabWidget::South);

    tw->setTabPosition(QTabWidget::East);

    QCOMPARE(tw->tabPosition(), QTabWidget::East);

    tw->setTabPosition(QTabWidget::West);

    QCOMPARE(tw->tabPosition(), QTabWidget::West);

}

void tst_QTabWidget::tabEnabled()

{

    // Test bad arguments

    QVERIFY(tw->isTabEnabled(-1) == false);

    tw->setTabEnabled(-1, false);

    int index = addPage();

    tw->setTabEnabled(index, true);

    QVERIFY(tw->isTabEnabled(index) == true);

    tw->setTabEnabled(index, false);

    QVERIFY(tw->isTabEnabled(index) == false);

    tw->setTabEnabled(index, true);

    QVERIFY(tw->isTabEnabled(index) == true);

    removePage(index);

}

void tst_QTabWidget::tabText()

{

    // Test bad arguments

    QCOMPARE(tw->tabText(-1), QString(""));

    tw->setTabText(-1, LABEL);

    int index = addPage();

    tw->setTabText(index, "new");

    QCOMPARE(tw->tabText(index), QString("new"));

    tw->setTabText(index, LABEL);

    QCOMPARE(tw->tabText(index), QString(LABEL));

    removePage(index);

}

void tst_QTabWidget::tabShape()

{

    int index = addPage();

    tw->setTabShape(QTabWidget::Rounded);

    QCOMPARE(tw->tabShape(), QTabWidget::Rounded);

    tw->setTabShape(QTabWidget::Triangular);

    QCOMPARE(tw->tabShape(), QTabWidget::Triangular);

    tw->setTabShape(QTabWidget::Rounded);

    QCOMPARE(tw->tabShape(), QTabWidget::Rounded);

    removePage(index);

}

void tst_QTabWidget::tabTooltip()

{

    // Test bad arguments

    QCOMPARE(tw->tabToolTip(-1), QString(""));

    tw->setTabText(-1, TIP);

    int index = addPage();

    tw->setTabToolTip(index, "tip");

    QCOMPARE(tw->tabToolTip(index), QString("tip"));

    tw->setTabToolTip(index, TIP);

    QCOMPARE(tw->tabToolTip(index), QString(TIP));

    removePage(index);

}

void tst_QTabWidget::tabIcon()

{

    // Test bad arguments

    QVERIFY(tw->tabToolTip(-1).isNull());

    tw->setTabIcon(-1, QIcon());

    int index = addPage();

    QIcon icon;

    tw->setTabIcon(index, icon);

    QVERIFY(tw->tabIcon(index).isNull());

    removePage(index);

}

void tst_QTabWidget::indexOf()

{

    // Test bad arguments

    QCOMPARE(tw->indexOf(NULL), -1);

    int index = addPage();

    QWidget *w = tw->widget(index);

    QCOMPARE(tw->indexOf(w), index);

    removePage(index);

}

void tst_QTabWidget::currentWidget()

{

    // Test bad arguments

    tw->setCurrentWidget(NULL);

    QVERIFY(tw->currentWidget() == NULL);

    int index = addPage();

    QWidget *w = tw->widget(index);

    QVERIFY(tw->currentWidget() == w);

    QCOMPARE(tw->currentIndex(), index);

    tw->setCurrentWidget(NULL);

    QVERIFY(tw->currentWidget() == w);

    QCOMPARE(tw->currentIndex(), index);

    int index2 = addPage();

    QWidget *w2 = tw->widget(index2);

    Q_UNUSED(w2);

    QVERIFY(tw->currentWidget() == w);

    QCOMPARE(tw->currentIndex(), index);

    removePage(index2);

    removePage(index);

}

/**

 * setCurrentWidget(..) calls setCurrentIndex(..)

 * currentChanged(..) SIGNAL

 */

void tst_QTabWidget::currentIndex()

{

    // Test bad arguments

    QSignalSpy spy(tw, SIGNAL(currentChanged(int)));

#ifdef QT3_SUPPORT

    QSignalSpy spySupport(tw, SIGNAL(currentChanged(QWidget *)));

#endif

    QCOMPARE(tw->currentIndex(), -1);

    tw->setCurrentIndex(-1);

    QCOMPARE(tw->currentIndex(), -1);

    QCOMPARE(spy.count(), 0);

    int firstIndex = addPage();

    tw->setCurrentIndex(firstIndex);

    QCOMPARE(tw->currentIndex(), firstIndex);

    QCOMPARE(spy.count(), 1);

    QList<QVariant> arguments = spy.takeFirst();

    QVERIFY(arguments.at(0).toInt() == firstIndex);

#ifdef QT3_SUPPORT

    QCOMPARE(spySupport.count(), 1);

#endif

    int index = addPage();

    QCOMPARE(tw->currentIndex(), firstIndex);

    tw->setCurrentIndex(index);

    QCOMPARE(tw->currentIndex(), index);

    QCOMPARE(spy.count(), 1);

    arguments = spy.takeFirst();

    QVERIFY(arguments.at(0).toInt() == index);

#ifdef QT3_SUPPORT

    QCOMPARE(spySupport.count(), 2);

#endif

    removePage(index);

    QCOMPARE(tw->currentIndex(), firstIndex);

    QCOMPARE(spy.count(), 1);

    arguments = spy.takeFirst();

    QVERIFY(arguments.at(0).toInt() == firstIndex);

#ifdef QT3_SUPPORT

    QCOMPARE(spySupport.count(), 3);

#endif

    removePage(firstIndex);

    QCOMPARE(tw->currentIndex(), -1);

    QCOMPARE(spy.count(), 1);

    arguments = spy.takeFirst();

    QVERIFY(arguments.at(0).toInt() == -1);

#ifdef QT3_SUPPORT

    QCOMPARE(spySupport.count(), 4);

#endif

}

void tst_QTabWidget::cornerWidget()

{

    // Test bad arguments

    tw->setCornerWidget(NULL, Qt::TopRightCorner);

    QVERIFY(tw->cornerWidget(Qt::TopLeftCorner) == 0);

    QVERIFY(tw->cornerWidget(Qt::TopRightCorner) == 0);

    QVERIFY(tw->cornerWidget(Qt::BottomLeftCorner) == 0);

    QVERIFY(tw->cornerWidget(Qt::BottomRightCorner) == 0);

    QWidget *w = new QWidget(0);

    tw->setCornerWidget(w, Qt::TopLeftCorner);

    QCOMPARE(w->parent(), (QObject *)tw);

    QVERIFY(tw->cornerWidget(Qt::TopLeftCorner) == w);

    tw->setCornerWidget(w, Qt::TopRightCorner);

    QVERIFY(tw->cornerWidget(Qt::TopRightCorner) == w);

    tw->setCornerWidget(w, Qt::BottomLeftCorner);

    QVERIFY(tw->cornerWidget(Qt::BottomLeftCorner) == w);

    tw->setCornerWidget(w, Qt::BottomRightCorner);

    QVERIFY(tw->cornerWidget(Qt::BottomRightCorner) == w);

    tw->setCornerWidget(0, Qt::TopRightCorner);

    QVERIFY(tw->cornerWidget(Qt::TopRightCorner) == 0);

    QCOMPARE(w->isHidden(), true);

}

//test that the QTabWidget::count() is correct at the moment the currentChanged signal is emit

class RemoveTabObject : public QObject

{

    Q_OBJECT

    public:

        RemoveTabObject(QTabWidget *_tw) : tw(_tw), count(-1) {

            connect(tw, SIGNAL(currentChanged(int)), this, SLOT(currentChanged()));

        }

        QTabWidget *tw;

        int count;

    public slots:

        void currentChanged() { count = tw->count(); }

};

void tst_QTabWidget::removeTab()

{

    tw->show();

    QCOMPARE(tw->count(), 0);

    RemoveTabObject ob(tw);

    tw->addTab(new QLabel("1"), "1");

    QCOMPARE(ob.count, 1);

    tw->addTab(new QLabel("2"), "2");

    tw->addTab(new QLabel("3"), "3");

    tw->addTab(new QLabel("4"), "4");

    tw->addTab(new QLabel("5"), "5");

    QCOMPARE(ob.count, 1);

    QCOMPARE(tw->count(), 5);

    tw->setCurrentIndex(4);

    QCOMPARE(ob.count,5);

    tw->removeTab(4);

    QCOMPARE(ob.count, 4);

    QCOMPARE(tw->count(), 4);

    QCOMPARE(tw->currentIndex(), 3);

    tw->setCurrentIndex(1);

    tw->removeTab(1);

    QCOMPARE(ob.count, 3);

    QCOMPARE(tw->count(), 3);

    QCOMPARE(tw->currentIndex(), 1);

    delete tw->widget(1);

    QCOMPARE(tw->count(), 2);

    QCOMPARE(ob.count, 2);

    QCOMPARE(tw->currentIndex(), 1);

    delete tw->widget(1);

    QCOMPARE(tw->count(), 1);

    QCOMPARE(ob.count, 1);

    tw->removeTab(0);

    QCOMPARE(tw->count(), 0);

    QCOMPARE(ob.count, 0);

}

void tst_QTabWidget::clear()

{

    tw->addTab(new QWidget, "1");

    tw->addTab(new QWidget, "2");

    tw->addTab(new QWidget, "3");

    tw->addTab(new QWidget, "4");

    tw->addTab(new QWidget, "5");

    tw->setCurrentIndex(4);

    tw->clear();

    QCOMPARE(tw->count(), 0);

    QCOMPARE(tw->currentIndex(), -1);

}

void tst_QTabWidget::keyboardNavigation()

{

    int firstIndex = addPage();

    addPage();

    addPage();

    tw->setCurrentIndex(firstIndex);

    QCOMPARE(tw->currentIndex(), firstIndex);

    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier);

    QCOMPARE(tw->currentIndex(), 1);