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#include <QtTest/QtTest>

#include <qgraphicslayoutitem.h>

#include <float.h>

#include <limits.h>

class tst_QGraphicsLayoutItem : public QObject {

Q_OBJECT

public slots:

    void initTestCase();

    void cleanupTestCase();

    void init();

    void cleanup();

private slots:

    void qgraphicslayoutitem();

    void contentsRect();

    void effectiveSizeHint_data();

    void effectiveSizeHint();

    void getContentsMargins();

    void isLayout_data();

    void isLayout();

    void maximumSize();

    void minimumSize();

    void parentLayoutItem_data();

    void parentLayoutItem();

    void preferredSize();

    void setMaximumSize_data();

    void setMaximumSize();

    void setMinimumSize_data();

    void setMinimumSize();

    void setPreferredSize_data();

    void setPreferredSize();

    void setSizePolicy_data();

    void setSizePolicy();

};

// Subclass that exposes the protected functions.

class SubQGraphicsLayoutItem : public QGraphicsLayoutItem {

public:

    SubQGraphicsLayoutItem(QGraphicsLayoutItem *par = 0, bool layout = false)

            : QGraphicsLayoutItem(par, layout), updateGeometryCalled(0)

        {}

    // QGraphicsLayoutItem::geometry is a pure virtual function

    QRectF geometry() const

        { return QRectF(); }

    // QGraphicsLayoutItem::setGeometry is a pure virtual function

    void setGeometry(QRectF const& rect)

        { Q_UNUSED(rect); }

    // QGraphicsLayoutItem::sizeHint is a pure virtual function

    QSizeF sizeHint(Qt::SizeHint which, QSizeF const& constraint = QSizeF()) const

        { Q_UNUSED(which); Q_UNUSED(constraint); return QSizeF(); }

    void updateGeometry()

        { updateGeometryCalled++; QGraphicsLayoutItem::updateGeometry(); }

    int updateGeometryCalled;

};

// This will be called before the first test function is executed.

// It is only called once.

void tst_QGraphicsLayoutItem::initTestCase()

{

}

// This will be called after the last test function is executed.

// It is only called once.

void tst_QGraphicsLayoutItem::cleanupTestCase()

{

}

// This will be called before each test function is executed.

void tst_QGraphicsLayoutItem::init()

{

}

// This will be called after every test function.

void tst_QGraphicsLayoutItem::cleanup()

{

}

void tst_QGraphicsLayoutItem::qgraphicslayoutitem()

{

    SubQGraphicsLayoutItem layoutItem;

    layoutItem.contentsRect();

    layoutItem.effectiveSizeHint(Qt::MinimumSize);

    layoutItem.geometry();

    QCOMPARE(layoutItem.isLayout(), false);

    layoutItem.maximumSize();

    layoutItem.minimumSize();

    QCOMPARE(layoutItem.parentLayoutItem(), (QGraphicsLayoutItem*)0);

    layoutItem.preferredSize();

    layoutItem.sizePolicy();

    layoutItem.sizeHint(Qt::MinimumSize);

}

// QRectF contentsRect() const public

void tst_QGraphicsLayoutItem::contentsRect()

{

    SubQGraphicsLayoutItem layoutItem;

    QRectF f = layoutItem.contentsRect();

    QCOMPARE(f, QRectF(QPoint(), QSizeF(0, 0)));

}

Q_DECLARE_METATYPE(Qt::SizeHint)

void tst_QGraphicsLayoutItem::effectiveSizeHint_data()

{

    QTest::addColumn<Qt::SizeHint>("sizeHint");

    QTest::addColumn<QSizeF>("constraint");

    for (int i = 0; i < 15; ++i) {

        QTestData &data = QTest::newRow(QString("%1").arg(i).toLatin1());

        switch(i % 5) {

        case 0: data << Qt::MinimumSize; break;

        case 1: data << Qt::PreferredSize; break;

        case 2: data << Qt::MaximumSize; break;

        case 3: data << Qt::MinimumDescent; break;

        case 4: data << Qt::NSizeHints; break;

        }

        switch(i % 3) {

        case 0: data << QSizeF(-1, -1); break;

        case 1: data << QSizeF(0, 0); break;

        case 2: data << QSizeF(10, 10); break;

        }

    }

}

// QSizeF effectiveSizeHint(Qt::SizeHint which, QSizeF const& constraint = QSize()) const public

void tst_QGraphicsLayoutItem::effectiveSizeHint()

{

    QFETCH(Qt::SizeHint, sizeHint);

    QFETCH(QSizeF, constraint);

    SubQGraphicsLayoutItem layoutItem;

    QSizeF r = layoutItem.effectiveSizeHint(sizeHint, constraint);

    if (constraint.width() != -1)

        QCOMPARE(r.width(), constraint.width());

    if (constraint.height() != -1)

        QCOMPARE(r.height(), constraint.height());

}

// void getContentsMargins(qreal* left, qreal* top, qreal* right, qreal* bottom) const public

void tst_QGraphicsLayoutItem::getContentsMargins()

{

    SubQGraphicsLayoutItem layoutItem;

    qreal left;

    qreal top;

    qreal right;

    qreal bottom;

    layoutItem.getContentsMargins(&left, &top, &right, &bottom);

    QCOMPARE(left, (qreal)0);

    QCOMPARE(top, (qreal)0);

    QCOMPARE(right, (qreal)0);

    QCOMPARE(bottom, (qreal)0);

}

void tst_QGraphicsLayoutItem::isLayout_data()

{

    QTest::addColumn<bool>("isLayout");

    QTest::newRow("no") << false;

    QTest::newRow("yes") << true;

}

// bool isLayout() const public

void tst_QGraphicsLayoutItem::isLayout()

{

    QFETCH(bool, isLayout);

    SubQGraphicsLayoutItem layoutItem(0, isLayout);

    QCOMPARE(layoutItem.isLayout(), isLayout);

}

// QSizeF maximumSize() const public

void tst_QGraphicsLayoutItem::maximumSize()

{

    SubQGraphicsLayoutItem layoutItem;

    QCOMPARE(layoutItem.maximumSize(), QSizeF(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));

    // layoutItem.effectiveSizeHint(Qt::MaximumSize);

}

// QSizeF minimumSize() const public

void tst_QGraphicsLayoutItem::minimumSize()

{

    SubQGraphicsLayoutItem layoutItem;

    QCOMPARE(layoutItem.minimumSize(), QSizeF(0, 0));

    // layoutItem.effectiveSizeHint(Qt::MinimumSize);

}

void tst_QGraphicsLayoutItem::parentLayoutItem_data()

{

    QTest::addColumn<bool>("parent");

    QTest::newRow("no") << false;

    QTest::newRow("yes") << true;

}

// QGraphicsLayoutItem* parentLayoutItem() const public

void tst_QGraphicsLayoutItem::parentLayoutItem()

{

    QFETCH(bool, parent);

    SubQGraphicsLayoutItem parentLayout;

    SubQGraphicsLayoutItem layoutItem(parent ? &parentLayout : 0);

    QCOMPARE(layoutItem.parentLayoutItem(), static_cast<QGraphicsLayoutItem*>( parent ? &parentLayout : 0));

}

// QSizeF preferredSize() const public

void tst_QGraphicsLayoutItem::preferredSize()

{

    SubQGraphicsLayoutItem layoutItem;

    QCOMPARE(layoutItem.preferredSize(), QSizeF(0, 0));

    // layoutItem.effectiveSizeHint(Qt::PreferredSize));

}

void tst_QGraphicsLayoutItem::setMaximumSize_data()

{

    QTest::addColumn<QSizeF>("size");

    QTest::addColumn<QSizeF>("outputSize");

    QTest::newRow("-1") << QSizeF(-1, -1) << QSizeF(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);

    QTest::newRow("0") << QSizeF(0, 0) << QSizeF(0, 0);

    QTest::newRow("10") << QSizeF(10, 10) << QSizeF(10, 10);

}

// void setMaximumSize(QSizeF const& size) public

void tst_QGraphicsLayoutItem::setMaximumSize()

{

    QFETCH(QSizeF, size);

    QFETCH(QSizeF, outputSize);

    SubQGraphicsLayoutItem layoutItem;

    QSizeF oldSize = layoutItem.maximumSize();

    layoutItem.setMaximumSize(size);

    if (size.isValid())

        QCOMPARE(layoutItem.updateGeometryCalled, (oldSize == size) ? 0 : 1);

    else

        QVERIFY(!layoutItem.updateGeometryCalled);

    layoutItem.setMinimumSize(1, 1);

    QVERIFY(layoutItem.maximumSize().width() <= outputSize.width());

    QVERIFY(layoutItem.maximumSize().height() <= outputSize.height());

    QVERIFY(layoutItem.minimumSize().width() <= outputSize.width());

    QVERIFY(layoutItem.minimumSize().height() <= outputSize.height());

    QVERIFY(layoutItem.preferredSize().width() <= outputSize.width());

    QVERIFY(layoutItem.preferredSize().height() <= outputSize.height());

}

void tst_QGraphicsLayoutItem::setMinimumSize_data()

{

    QTest::addColumn<QSizeF>("size");

    QTest::addColumn<QSizeF>("outputSize");

    QTest::newRow("-1") << QSizeF(-1, -1) << QSizeF(0, 0);

    QTest::newRow("0") << QSizeF(0, 0) << QSizeF(0, 0);

    QTest::newRow("10") << QSizeF(10, 10) << QSizeF(10, 10);

}

// void setMinimumSize(QSizeF const& size) public

void tst_QGraphicsLayoutItem::setMinimumSize()

{

    QFETCH(QSizeF, size);

    QFETCH(QSizeF, outputSize);

    SubQGraphicsLayoutItem layoutItem;

    QSizeF oldSize = layoutItem.minimumSize();

    layoutItem.setMinimumSize(size);

    if (size.isValid()) {

        QEXPECT_FAIL("0", "updateGeometry() is called when it doesn't have to be.", Continue);

        QCOMPARE(layoutItem.updateGeometryCalled, (oldSize == size) ? 0 : 1);

    } else {

        QVERIFY(!layoutItem.updateGeometryCalled);

    }

    layoutItem.setMaximumSize(5, 5);

    QEXPECT_FAIL("10", "layoutItem.maximumSize().width() < size.width()", Abort);

    QVERIFY(layoutItem.maximumSize().width() >= size.width());

    QVERIFY(layoutItem.maximumSize().height() >= size.height());

    QVERIFY(layoutItem.minimumSize().width() >= size.width());

    QVERIFY(layoutItem.minimumSize().height() >= size.height());

    QVERIFY(layoutItem.preferredSize().width() >= size.width());

    QVERIFY(layoutItem.preferredSize().height() >= size.height());

}

void tst_QGraphicsLayoutItem::setPreferredSize_data()

{

    QTest::addColumn<QSizeF>("size");

    QTest::newRow("-1") << QSizeF(-1, -1);

    QTest::newRow("0") << QSizeF(0, 0);

    QTest::newRow("10") << QSizeF(10, 10);

}

// void setPreferredSize(QSizeF const& size) public

void tst_QGraphicsLayoutItem::setPreferredSize()

{

    QFETCH(QSizeF, size);

    SubQGraphicsLayoutItem layoutItem;

    QSizeF oldSize = layoutItem.preferredSize();

    layoutItem.setPreferredSize(size);

    if (size.isValid())

       QCOMPARE(layoutItem.preferredSize(), size);

    if (size.isValid()) {

        QEXPECT_FAIL("0", "updateGeometry() is called when it doesn't have to be.", Continue);

        QCOMPARE(layoutItem.updateGeometryCalled, (oldSize == size) ? 0 : 1);

    } else {

        QVERIFY(!layoutItem.updateGeometryCalled);

    }

}

void tst_QGraphicsLayoutItem::setSizePolicy_data()

{

    QTest::addColumn<QSizePolicy>("policy");

    QTest::newRow("default") << QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed, QSizePolicy::DefaultType);

    QTest::newRow("rand") << QSizePolicy(QSizePolicy::Minimum, QSizePolicy::Preferred);

}

// void setSizePolicy(QSizePolicy const& policy) public

void tst_QGraphicsLayoutItem::setSizePolicy()

{

    QFETCH(QSizePolicy, policy);

    SubQGraphicsLayoutItem layoutItem;

    QSizePolicy defaultPolicy(QSizePolicy::Preferred, QSizePolicy::Preferred, QSizePolicy::DefaultType);

    QCOMPARE(layoutItem.sizePolicy(), defaultPolicy);

    layoutItem.setSizePolicy(policy);

    QCOMPARE(layoutItem.sizePolicy(), policy);

    QCOMPARE(layoutItem.updateGeometryCalled, (defaultPolicy == policy) ? 0 : 1);

}

QTEST_MAIN(tst_QGraphicsLayoutItem)

#include "tst_qgraphicslayoutitem.moc"