path: root/tests/auto/quick/qquicktableview/tst_qquicktableview.cpp

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#include <QtTest/QtTest>

#include <QtQuick/qquickview.h>
#include <QtQuick/private/qquicktableview_p.h>
#include <QtQuick/private/qquicktableview_p_p.h>

#include <QtQml/qqmlengine.h>
#include <QtQml/qqmlcontext.h>
#include <QtQml/qqmlexpression.h>
#include <QtQml/qqmlincubator.h>
#include <QtQml/private/qqmlobjectmodel_p.h>
#include <QtQml/private/qqmllistmodel_p.h>

#include "testmodel.h"

#include "../../shared/util.h"
#include "../shared/viewtestutil.h"
#include "../shared/visualtestutil.h"

using namespace QQuickViewTestUtil;
using namespace QQuickVisualTestUtil;

static const char* kTableViewPropName = "tableView";
static const char* kDelegateObjectName = "tableViewDelegate";

Q_DECLARE_METATYPE(QMarginsF);

#define LOAD_TABLEVIEW(fileName) \
    QScopedPointer<QQuickView> view(createView()); \
    view->setSource(testFileUrl(fileName)); \
    view->show(); \
    QVERIFY(QTest::qWaitForWindowActive(view.data())); \
    auto tableView = view->rootObject()->property(kTableViewPropName).value<QQuickTableView *>(); \
    QVERIFY(tableView); \
    auto tableViewPrivate = QQuickTableViewPrivate::get(tableView); \
    Q_UNUSED(tableViewPrivate)

#define WAIT_UNTIL_POLISHED \
    QVERIFY(tableViewPrivate->polishScheduled); \
    QTRY_VERIFY(!tableViewPrivate->polishScheduled)

class tst_QQuickTableView : public QQmlDataTest
{
    Q_OBJECT
public:
    tst_QQuickTableView();

    QQuickTableViewAttached *getAttachedObject(const QObject *object) const;
    QPoint getContextRowAndColumn(const QQuickItem *item) const;

private slots:
    void initTestCase() override;

    void setAndGetModel_data();
    void setAndGetModel();
    void emptyModel_data();
    void emptyModel();
    void checkZeroSizedDelegate();
    void checkImplicitSizeDelegate();
    void checkColumnWidthWithoutProvider();
    void checkColumnWidthProvider();
    void checkColumnWidthProviderInvalidReturnValues();
    void checkColumnWidthProviderNotCallable();
    void checkRowHeightWithoutProvider();
    void checkRowHeightProvider();
    void checkRowHeightProviderInvalidReturnValues();
    void checkRowHeightProviderNotCallable();
    void noDelegate();
    void countDelegateItems_data();
    void countDelegateItems();
    void checkLayoutOfEqualSizedDelegateItems_data();
    void checkLayoutOfEqualSizedDelegateItems();
    void checkTableMargins_data();
    void checkTableMargins();
    void fillTableViewButNothingMore_data();
    void fillTableViewButNothingMore();
    void checkInitialAttachedProperties_data();
    void checkInitialAttachedProperties();
    void flick_data();
    void flick();
    void flickOvershoot_data();
    void flickOvershoot();
    void checkRowColumnCount();
    void modelSignals();
};

tst_QQuickTableView::tst_QQuickTableView()
{
}

void tst_QQuickTableView::initTestCase()
{
    QQmlDataTest::initTestCase();
    qmlRegisterType<TestModel>("TestModel", 0, 1, "TestModel");
}

QQuickTableViewAttached *tst_QQuickTableView::getAttachedObject(const QObject *object) const
{
    QObject *attachedObject = qmlAttachedPropertiesObject<QQuickTableView>(object);
    return static_cast<QQuickTableViewAttached *>(attachedObject);
}

QPoint tst_QQuickTableView::getContextRowAndColumn(const QQuickItem *item) const
{
    const auto context = qmlContext(item);
    const int row = context->contextProperty("row").toInt();
    const int column = context->contextProperty("column").toInt();
    return QPoint(column, row);
}

void tst_QQuickTableView::setAndGetModel_data()
{
    QTest::addColumn<QVariant>("model");

    QTest::newRow("QAIM 1x1") << TestModelAsVariant(1, 1);
    QTest::newRow("Number model 1") << QVariant::fromValue(1);
    QTest::newRow("QStringList 1") << QVariant::fromValue(QStringList() << "one");
}

void tst_QQuickTableView::setAndGetModel()
{
    // Test that we can set and get different kind of models
    QFETCH(QVariant, model);
    LOAD_TABLEVIEW("plaintableview.qml");

    tableView->setModel(model);
    QCOMPARE(model, tableView->model());
}

void tst_QQuickTableView::emptyModel_data()
{
    QTest::addColumn<QVariant>("model");

    QTest::newRow("QAIM") << TestModelAsVariant(0, 0);
    QTest::newRow("Number model") << QVariant::fromValue(0);
    QTest::newRow("QStringList") << QVariant::fromValue(QStringList());
}

void tst_QQuickTableView::emptyModel()
{
    // Check that if we assign an empty model to
    // TableView, no delegate items will be created.
    QFETCH(QVariant, model);
    LOAD_TABLEVIEW("plaintableview.qml");

    tableView->setModel(model);
    WAIT_UNTIL_POLISHED;
    QCOMPARE(tableViewPrivate->loadedItems.count(), 0);
}

void tst_QQuickTableView::checkZeroSizedDelegate()
{
    // Check that if we assign a delegate with empty width and height, we
    // fall back to use kDefaultColumnWidth and kDefaultRowHeight as
    // column/row sizes.
    LOAD_TABLEVIEW("plaintableview.qml");

    auto model = TestModelAsVariant(100, 100);
    tableView->setModel(model);

    view->rootObject()->setProperty("delegateWidth", 0);
    view->rootObject()->setProperty("delegateHeight", 0);

    QTest::ignoreMessage(QtWarningMsg, QRegularExpression(".*implicit"));

    WAIT_UNTIL_POLISHED;

    auto items = tableViewPrivate->loadedItems;
    QVERIFY(!items.isEmpty());

    for (auto fxItem : tableViewPrivate->loadedItems) {
        auto item = fxItem->item;
        QCOMPARE(item->width(), kDefaultColumnWidth);
        QCOMPARE(item->height(), kDefaultRowHeight);
    }
}

void tst_QQuickTableView::checkImplicitSizeDelegate()
{
    // Check that we can set the size of delegate items using
    // implicit width/height, instead of forcing the user to
    // create an attached object by using TableView.cellWidth/Height.
    LOAD_TABLEVIEW("tableviewimplicitsize.qml");

    auto model = TestModelAsVariant(100, 100);
    tableView->setModel(model);

    WAIT_UNTIL_POLISHED;

    auto items = tableViewPrivate->loadedItems;
    QVERIFY(!items.isEmpty());

    for (auto fxItem : tableViewPrivate->loadedItems) {
        auto item = fxItem->item;
        QCOMPARE(item->width(), 90);
        QCOMPARE(item->height(), 60);
    }
}

void tst_QQuickTableView::checkColumnWidthWithoutProvider()
{
    // Checks that a function isn't assigned to the columnWidthProvider property
    // and that the column width is equal to the implicitWidth of the delegate.
    LOAD_TABLEVIEW("alternatingrowheightcolumnwidth.qml");

    auto model = TestModelAsVariant(10, 10);

    tableView->setModel(model);
    QVERIFY(tableView->columnWidthProvider().isUndefined());

    WAIT_UNTIL_POLISHED;

    for (auto fxItem : tableViewPrivate->loadedItems) {
        // expectedWidth mirrors the implicit width of the delegate
        qreal expectedWidth = fxItem->cell.x() % 2 ? 30 : 40;
        QCOMPARE(fxItem->item->width(), expectedWidth);
    }
}

void tst_QQuickTableView::checkColumnWidthProvider()
{
    // Check that you can assign a function to the columnWidthProvider property, and
    // that it's used to control (and override) the width of the columns.
    LOAD_TABLEVIEW("userowcolumnprovider.qml");

    auto model = TestModelAsVariant(10, 10);

    tableView->setModel(model);
    QVERIFY(tableView->columnWidthProvider().isCallable());

    WAIT_UNTIL_POLISHED;

    for (auto fxItem : tableViewPrivate->loadedItems) {
        // expectedWidth mirrors the expected return value of the assigned javascript function
        qreal expectedWidth = fxItem->cell.x() + 10;
        QCOMPARE(fxItem->item->width(), expectedWidth);
    }
}

void tst_QQuickTableView::checkColumnWidthProviderInvalidReturnValues()
{
    // Check that we fall back to use default columns widths, if you
    // assign a function to columnWidthProvider that returns invalid values.
    LOAD_TABLEVIEW("usefaultyrowcolumnprovider.qml");

    auto model = TestModelAsVariant(10, 10);

    tableView->setModel(model);

    QTest::ignoreMessage(QtWarningMsg, QRegularExpression(".*Provider.*valid"));

    WAIT_UNTIL_POLISHED;

    for (auto fxItem : tableViewPrivate->loadedItems)
        QCOMPARE(fxItem->item->width(), kDefaultColumnWidth);
}

void tst_QQuickTableView::checkColumnWidthProviderNotCallable()
{
    // Check that we fall back to use default columns widths, if you
    // assign something to columnWidthProvider that is not callable.
    LOAD_TABLEVIEW("usefaultyrowcolumnprovider.qml");

    auto model = TestModelAsVariant(10, 10);

    tableView->setModel(model);
    tableView->setRowHeightProvider(QJSValue());
    tableView->setColumnWidthProvider(QJSValue(10));

    QTest::ignoreMessage(QtWarningMsg, QRegularExpression(".Provider.*function"));

    WAIT_UNTIL_POLISHED;

    for (auto fxItem : tableViewPrivate->loadedItems)
        QCOMPARE(fxItem->item->width(), kDefaultColumnWidth);
}

void tst_QQuickTableView::checkRowHeightWithoutProvider()
{
    // Checks that a function isn't assigned to the rowHeightProvider property
    // and that the row height is equal to the implicitHeight of the delegate.
    LOAD_TABLEVIEW("alternatingrowheightcolumnwidth.qml");

    auto model = TestModelAsVariant(10, 10);
    QVERIFY(tableView->rowHeightProvider().isUndefined());

    tableView->setModel(model);

    WAIT_UNTIL_POLISHED;

    for (auto fxItem : tableViewPrivate->loadedItems) {
        // expectedHeight mirrors the implicit height of the delegate
        qreal expectedHeight = fxItem->cell.y() % 2 ? 30 : 40;
        QCOMPARE(fxItem->item->height(), expectedHeight);
    }
}

void tst_QQuickTableView::checkRowHeightProvider()
{
    // Check that you can assign a function to the columnWidthProvider property, and
    // that it's used to control (and override) the width of the columns.
    LOAD_TABLEVIEW("userowcolumnprovider.qml");

    auto model = TestModelAsVariant(10, 10);

    tableView->setModel(model);
    QVERIFY(tableView->rowHeightProvider().isCallable());

    WAIT_UNTIL_POLISHED;

    for (auto fxItem : tableViewPrivate->loadedItems) {
        // expectedWidth mirrors the expected return value of the assigned javascript function
        qreal expectedHeight = fxItem->cell.y() + 10;
        QCOMPARE(fxItem->item->height(), expectedHeight);
    }
}

void tst_QQuickTableView::checkRowHeightProviderInvalidReturnValues()
{
    // Check that we fall back to use default row heights, if you
    // assign a function to rowHeightProvider that returns invalid values.
    LOAD_TABLEVIEW("usefaultyrowcolumnprovider.qml");

    auto model = TestModelAsVariant(10, 10);

    tableView->setModel(model);

    QTest::ignoreMessage(QtWarningMsg, QRegularExpression(".*Provider.*valid"));

    WAIT_UNTIL_POLISHED;

    for (auto fxItem : tableViewPrivate->loadedItems)
        QCOMPARE(fxItem->item->height(), kDefaultRowHeight);
}

void tst_QQuickTableView::checkRowHeightProviderNotCallable()
{
    // Check that we fall back to use default row heights, if you
    // assign something to rowHeightProvider that is not callable.
    LOAD_TABLEVIEW("usefaultyrowcolumnprovider.qml");

    auto model = TestModelAsVariant(10, 10);

    tableView->setModel(model);

    tableView->setColumnWidthProvider(QJSValue());
    tableView->setRowHeightProvider(QJSValue(10));

    QTest::ignoreMessage(QtWarningMsg, QRegularExpression(".*Provider.*function"));

    WAIT_UNTIL_POLISHED;

    for (auto fxItem : tableViewPrivate->loadedItems)
        QCOMPARE(fxItem->item->height(), kDefaultRowHeight);
}

void tst_QQuickTableView::noDelegate()
{
    // Check that you can skip setting a delegate without
    // it causing any problems (like crashing or asserting).
    // And then set a delegate, and do a quick check that the
    // view gets populated as expected.
    LOAD_TABLEVIEW("plaintableview.qml");

    const int rows = 5;
    const int columns = 5;
    auto model = TestModelAsVariant(columns, rows);
    tableView->setModel(model);

    // Start with no delegate, and check
    // that we end up with no items in the table.
    tableView->setDelegate(nullptr);

    WAIT_UNTIL_POLISHED;

    auto items = tableViewPrivate->loadedItems;
    QVERIFY(items.isEmpty());

    // Set a delegate, and check that we end
    // up with the expected number of items.
    auto delegate = view->rootObject()->property("delegate").value<QQmlComponent *>();
    QVERIFY(delegate);
    tableView->setDelegate(delegate);

    WAIT_UNTIL_POLISHED;

    items = tableViewPrivate->loadedItems;
    QCOMPARE(items.count(), rows * columns);

    // And then unset the delegate again, and check
    // that we end up with no items.
    tableView->setDelegate(nullptr);

    WAIT_UNTIL_POLISHED;

    items = tableViewPrivate->loadedItems;
    QVERIFY(items.isEmpty());
}

void tst_QQuickTableView::countDelegateItems_data()
{
    QTest::addColumn<QVariant>("model");
    QTest::addColumn<int>("count");

    QTest::newRow("QAIM 1x1") << TestModelAsVariant(1, 1) << 1;
    QTest::newRow("QAIM 2x1") << TestModelAsVariant(2, 1) << 2;
    QTest::newRow("QAIM 1x2") << TestModelAsVariant(1, 2) << 2;
    QTest::newRow("QAIM 2x2") << TestModelAsVariant(2, 2) << 4;
    QTest::newRow("QAIM 4x4") << TestModelAsVariant(4, 4) << 16;

    QTest::newRow("Number model 1") << QVariant::fromValue(1) << 1;
    QTest::newRow("Number model 4") << QVariant::fromValue(4) << 4;

    QTest::newRow("QStringList 1") << QVariant::fromValue(QStringList() << "one") << 1;
    QTest::newRow("QStringList 4") << QVariant::fromValue(QStringList() << "one" << "two" << "three" << "four") << 4;
}

void tst_QQuickTableView::countDelegateItems()
{
    // Assign different models of various sizes, and check that the number of
    // delegate items in the view matches the size of the model. Note that for
    // this test to be valid, all items must be within the visible area of the view.
    QFETCH(QVariant, model);
    QFETCH(int, count);
    LOAD_TABLEVIEW("plaintableview.qml");

    tableView->setModel(model);
    WAIT_UNTIL_POLISHED;

    // Check that tableview internals contain the expected number of items
    auto const items = tableViewPrivate->loadedItems;
    QCOMPARE(items.count(), count);

    // Check that this also matches the items found in the view
    auto foundItems = findItems<QQuickItem>(tableView, kDelegateObjectName);
    QCOMPARE(foundItems.count(), count);
}

void tst_QQuickTableView::checkLayoutOfEqualSizedDelegateItems_data()
{
    QTest::addColumn<QVariant>("model");
    QTest::addColumn<QSize>("tableSize");
    QTest::addColumn<QSizeF>("spacing");
    QTest::addColumn<QMarginsF>("margins");

    // Check spacing together with different table setups
    QTest::newRow("QAIM 1x1 1,1") << TestModelAsVariant(1, 1) << QSize(1, 1) << QSizeF(1, 1) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("QAIM 5x5 0,0") << TestModelAsVariant(5, 5) << QSize(5, 5) << QSizeF(0, 0) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("QAIM 5x5 1,0") << TestModelAsVariant(5, 5) << QSize(5, 5) << QSizeF(1, 0) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("QAIM 5x5 0,1") << TestModelAsVariant(5, 5) << QSize(5, 5) << QSizeF(0, 1) << QMarginsF(0, 0, 0, 0);

    // Check spacing together with margins
    QTest::newRow("QAIM 1x1 1,1 5555") << TestModelAsVariant(1, 1) << QSize(1, 1) << QSizeF(1, 1) << QMarginsF(5, 5, 5, 5);
    QTest::newRow("QAIM 4x4 0,0 3333") << TestModelAsVariant(4, 4) << QSize(4, 4) << QSizeF(0, 0) << QMarginsF(3, 3, 3, 3);
    QTest::newRow("QAIM 4x4 2,2 1234") << TestModelAsVariant(4, 4) << QSize(4, 4) << QSizeF(2, 2) << QMarginsF(1, 2, 3, 4);

    // Check "list" models
    QTest::newRow("NumberModel 1x4, 0000") << QVariant::fromValue(4) << QSize(1, 4) << QSizeF(1, 1) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("QStringList 1x4, 0,0 1111") << QVariant::fromValue(QStringList() << "one" << "two" << "three" << "four")
                                               << QSize(1, 4) << QSizeF(0, 0) << QMarginsF(1, 1, 1, 1);
}

void tst_QQuickTableView::checkLayoutOfEqualSizedDelegateItems()
{
    // Check that the geometry of the delegate items are correct
    QFETCH(QVariant, model);
    QFETCH(QSize, tableSize);
    QFETCH(QSizeF, spacing);
    QFETCH(QMarginsF, margins);
    LOAD_TABLEVIEW("plaintableview.qml");

    const qreal expectedItemWidth = 100;
    const qreal expectedItemHeight = 50;
    const int expectedItemCount = tableSize.width() * tableSize.height();

    tableView->setModel(model);
    tableView->setRowSpacing(spacing.height());
    tableView->setColumnSpacing(spacing.width());
    tableView->setLeftMargin(margins.left());
    tableView->setTopMargin(margins.top());
    tableView->setRightMargin(margins.right());
    tableView->setBottomMargin(margins.bottom());

    WAIT_UNTIL_POLISHED;

    auto const items = tableViewPrivate->loadedItems;
    QVERIFY(!items.isEmpty());

    for (int i = 0; i < expectedItemCount; ++i) {
        const QQuickItem *item = items[i]->item;
        QVERIFY(item);
        QCOMPARE(item->parentItem(), tableView->contentItem());

        const QPoint cell = getContextRowAndColumn(item);
        qreal expectedX = margins.left() + (cell.x() * (expectedItemWidth + spacing.width()));
        qreal expectedY = margins.top() + (cell.y() * (expectedItemHeight + spacing.height()));
        QCOMPARE(item->x(), expectedX);
        QCOMPARE(item->y(), expectedY);
        QCOMPARE(item->width(), expectedItemWidth);
        QCOMPARE(item->height(), expectedItemHeight);
    }
}

void tst_QQuickTableView::checkTableMargins_data()
{
    QTest::addColumn<QVariant>("model");
    QTest::addColumn<QSize>("tableSize");
    QTest::addColumn<QSizeF>("spacing");
    QTest::addColumn<QMarginsF>("margins");

    QTest::newRow("QAIM 1x1 1,1 0000") << TestModelAsVariant(1, 1) << QSize(1, 1) << QSizeF(1, 1) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("QAIM 4x4 1,1 0000") << TestModelAsVariant(4, 4) << QSize(4, 4) << QSizeF(1, 1) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("QAIM 1x1 1,1 5555") << TestModelAsVariant(1, 1) << QSize(1, 1) << QSizeF(1, 1) << QMarginsF(5, 5, 5, 5);
    QTest::newRow("QAIM 4x4 0,0 3333") << TestModelAsVariant(4, 4) << QSize(4, 4) << QSizeF(0, 0) << QMarginsF(3, 3, 3, 3);
    QTest::newRow("QAIM 4x4 2,2 1234") << TestModelAsVariant(4, 4) << QSize(4, 4) << QSizeF(2, 2) << QMarginsF(1, 2, 3, 4);
    QTest::newRow("QAIM 1x1 0,0 3210") << TestModelAsVariant(1, 1) << QSize(1, 1) << QSizeF(0, 0) << QMarginsF(3, 2, 1, 0);
}

void tst_QQuickTableView::checkTableMargins()
{
    // Check that the space between the content view and
    // the items matches the margins we set on the tableview.
    QFETCH(QVariant, model);
    QFETCH(QSize, tableSize);
    QFETCH(QSizeF, spacing);
    QFETCH(QMarginsF, margins);
    LOAD_TABLEVIEW("plaintableview.qml");

    tableView->setModel(model);
    tableView->setRowSpacing(spacing.height());
    tableView->setColumnSpacing(spacing.width());
    tableView->setLeftMargin(margins.left());
    tableView->setTopMargin(margins.top());
    tableView->setRightMargin(margins.right());
    tableView->setBottomMargin(margins.bottom());

    WAIT_UNTIL_POLISHED;

    QCOMPARE(tableViewPrivate->loadedTable.size(), tableSize);

    auto const topLeftFxItem = tableViewPrivate->loadedTableItem(QPoint(0, 0));
    auto const bottomRightFxItem = tableViewPrivate->loadedTableItem(tableViewPrivate->loadedTable.bottomRight());
    auto const topLeftItem = topLeftFxItem->item;
    auto const bottomRightItem = bottomRightFxItem->item;

    qreal leftSpace = topLeftItem->x();
    qreal topSpace = topLeftItem->y();
    qreal rightSpace = tableView->contentWidth() - (bottomRightItem->x() + bottomRightItem->width());
    qreal bottomSpace = tableView->contentHeight() - (bottomRightItem->y() + bottomRightItem->height());
    QCOMPARE(leftSpace, margins.left());
    QCOMPARE(topSpace, margins.top());
    QCOMPARE(rightSpace, margins.right());
    QCOMPARE(bottomSpace, margins.bottom());
}

void tst_QQuickTableView::fillTableViewButNothingMore_data()
{
    QTest::addColumn<QSizeF>("spacing");
    QTest::addColumn<QMarginsF>("margins");

    QTest::newRow("0 0,0 0") << QSizeF(0, 0) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("0 10,10 0") << QSizeF(10, 10) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("100 10,10 0") << QSizeF(10, 10) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("0 0,0 100") << QSizeF(0, 0) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("0 10,10 100") << QSizeF(10, 10) << QMarginsF(100, 100, 100, 100);
    QTest::newRow("100 10,10 100") << QSizeF(10, 10) << QMarginsF(100, 100, 100, 100);
}

void tst_QQuickTableView::fillTableViewButNothingMore()
{
    // Check that we end up filling the whole visible part of
    // the tableview with cells, but nothing more.
    QFETCH(QSizeF, spacing);
    QFETCH(QMarginsF, margins);
    LOAD_TABLEVIEW("plaintableview.qml");

    const int rows = 100;
    const int columns = 100;
    auto model = TestModelAsVariant(rows, columns);

    tableView->setModel(model);
    tableView->setRowSpacing(spacing.height());
    tableView->setColumnSpacing(spacing.width());
    tableView->setLeftMargin(margins.left());
    tableView->setTopMargin(margins.top());
    tableView->setRightMargin(margins.right());
    tableView->setBottomMargin(margins.bottom());
    tableView->setCacheBuffer(0);

    WAIT_UNTIL_POLISHED;

    auto const topLeftFxItem = tableViewPrivate->loadedTableItem(QPoint(0, 0));
    auto const topLeftItem = topLeftFxItem->item;

    // Check that the top-left item are at the corner of the view
    QCOMPARE(topLeftItem->x(), margins.left());
    QCOMPARE(topLeftItem->y(), margins.top());

    auto const bottomRightFxItem = tableViewPrivate->loadedTableItem(tableViewPrivate->loadedTable.bottomRight());
    auto const bottomRightItem = bottomRightFxItem->item;
    const QPoint bottomRightCell = getContextRowAndColumn(bottomRightItem.data());

    // Check that the right-most item is overlapping the right edge of the view
    QVERIFY(bottomRightItem->x() < tableView->width());
    QVERIFY(bottomRightItem->x() + bottomRightItem->width() >= tableView->width() - spacing.width());

    // Check that the actual number of columns matches what we expect
    qreal cellWidth = bottomRightItem->width() + spacing.width();
    qreal availableWidth = tableView->width() - margins.left();
    int expectedColumns = qCeil(availableWidth / cellWidth);
    int actualColumns = bottomRightCell.x() + 1;
    QCOMPARE(actualColumns, expectedColumns);

    // Check that the bottom-most item is overlapping the bottom edge of the view
    QVERIFY(bottomRightItem->y() < tableView->height());
    QVERIFY(bottomRightItem->y() + bottomRightItem->height() >= tableView->height() - spacing.height());

    // Check that the actual number of rows matches what we expect
    qreal cellHeight = bottomRightItem->height() + spacing.height();
    qreal availableHeight = tableView->height() - margins.top();
    int expectedRows = qCeil(availableHeight / cellHeight);
    int actualRows = bottomRightCell.y() + 1;
    QCOMPARE(actualRows, expectedRows);
}

void tst_QQuickTableView::checkInitialAttachedProperties_data()
{
    QTest::addColumn<QVariant>("model");

    QTest::newRow("QAIM") << TestModelAsVariant(4, 4);
    QTest::newRow("Number model") << QVariant::fromValue(4);
    QTest::newRow("QStringList") << QVariant::fromValue(QStringList() << "0" << "1" << "2" << "3");
}

void tst_QQuickTableView::checkInitialAttachedProperties()
{
    // Check that the context and attached properties inside
    // the delegate items are what we expect at start-up.
    QFETCH(QVariant, model);
    LOAD_TABLEVIEW("plaintableview.qml");

    tableView->setModel(model);

    WAIT_UNTIL_POLISHED;

    for (auto fxItem : tableViewPrivate->loadedItems) {
        const int index = fxItem->index;
        const auto item = fxItem->item;
        const auto context = qmlContext(item.data());
        const QPoint cell = tableViewPrivate->cellAtModelIndex(index);
        const int contextIndex = context->contextProperty("index").toInt();
        const QPoint contextCell = getContextRowAndColumn(item.data());
        const QString contextModelData = context->contextProperty("modelData").toString();

        QCOMPARE(contextCell.y(), cell.y());
        QCOMPARE(contextCell.x(), cell.x());
        QCOMPARE(contextIndex, index);
        QCOMPARE(contextModelData, QStringLiteral("%1").arg(cell.y()));
    }
}

void tst_QQuickTableView::flick_data()
{
    QTest::addColumn<QSizeF>("spacing");
    QTest::addColumn<QMarginsF>("margins");

    QTest::newRow("s:0 m:0") << QSizeF(0, 0) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("s:5 m:0") << QSizeF(5, 5) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("s:0 m:20") << QSizeF(0, 0) << QMarginsF(20, 20, 20, 20);
    QTest::newRow("s:5 m:20") << QSizeF(5, 5) << QMarginsF(20, 20, 20, 20);
}

void tst_QQuickTableView::flick()
{
    // Check that if we end up with the correct start and end column/row as we flick around
    // with different table configurations.
    QFETCH(QSizeF, spacing);
    QFETCH(QMarginsF, margins);
    LOAD_TABLEVIEW("plaintableview.qml");

    const qreal delegateWidth = 100;
    const qreal delegateHeight = 50;
    const int visualColumnCount = 4;
    const int visualRowCount = 4;
    const qreal cellWidth = delegateWidth + spacing.width();
    const qreal cellHeight = delegateHeight + spacing.height();
    auto model = TestModelAsVariant(100, 100);

    tableView->setModel(model);
    tableView->setRowSpacing(spacing.height());
    tableView->setColumnSpacing(spacing.width());
    tableView->setLeftMargin(margins.left());
    tableView->setTopMargin(margins.top());
    tableView->setRightMargin(margins.right());
    tableView->setBottomMargin(margins.bottom());
    tableView->setCacheBuffer(0);
    tableView->setWidth(margins.left() + (visualColumnCount * cellWidth) - spacing.width());
    tableView->setHeight(margins.top() + (visualRowCount * cellHeight) - spacing.height());

    WAIT_UNTIL_POLISHED;

    // Check the "simple" case if the cells never lands egde-to-edge with the viewport. For
    // that case we only accept that visible row/columns are loaded.
    qreal flickValues[] = {0.5, 1.5, 4.5, 20.5, 10.5, 3.5, 1.5, 0.5};

    for (qreal cellsToFlick : flickValues) {
        // Flick to the beginning of the cell
        tableView->setContentX(cellsToFlick * cellWidth);
        tableView->setContentY(cellsToFlick * cellHeight);
        tableView->polish();

        WAIT_UNTIL_POLISHED;

        const QRect loadedTable = tableViewPrivate->loadedTable;

        const int expectedTableLeft = cellsToFlick - int((margins.left() + spacing.width()) / cellWidth);
        const int expectedTableTop = cellsToFlick - int((margins.top() + spacing.height()) / cellHeight);

        QCOMPARE(loadedTable.left(), expectedTableLeft);
        QCOMPARE(loadedTable.right(), expectedTableLeft + visualColumnCount);
        QCOMPARE(loadedTable.top(), expectedTableTop);
        QCOMPARE(loadedTable.bottom(), expectedTableTop + visualRowCount);
    }
}

void tst_QQuickTableView::flickOvershoot_data()
{
    QTest::addColumn<QSizeF>("spacing");
    QTest::addColumn<QMarginsF>("margins");

    QTest::newRow("s:0 m:0") << QSizeF(0, 0) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("s:5 m:0") << QSizeF(5, 5) << QMarginsF(0, 0, 0, 0);
    QTest::newRow("s:0 m:20") << QSizeF(0, 0) << QMarginsF(20, 20, 20, 20);
    QTest::newRow("s:5 m:20") << QSizeF(5, 5) << QMarginsF(20, 20, 20, 20);
}

void tst_QQuickTableView::flickOvershoot()
{
    // Flick the table completely out and then in again, and see
    // that we still contains the expected rows/columns
    // Note that TableView always keeps top-left item loaded, even
    // when everything is flicked out of view.
    QFETCH(QSizeF, spacing);
    QFETCH(QMarginsF, margins);
    LOAD_TABLEVIEW("plaintableview.qml");

    const int rowCount = 5;
    const int columnCount = 5;
    const qreal delegateWidth = 100;
    const qreal delegateHeight = 50;
    const qreal cellWidth = delegateWidth + spacing.width();
    const qreal cellHeight = delegateHeight + spacing.height();
    const qreal tableWidth = margins.left() + margins.right() + (cellWidth * columnCount) - spacing.width();
    const qreal tableHeight = margins.top() + margins.bottom() + (cellHeight * rowCount) - spacing.height();
    const int outsideMargin = 10;
    auto model = TestModelAsVariant(rowCount, columnCount);

    tableView->setModel(model);
    tableView->setRowSpacing(spacing.height());
    tableView->setColumnSpacing(spacing.width());
    tableView->setLeftMargin(margins.left());
    tableView->setTopMargin(margins.top());
    tableView->setRightMargin(margins.right());
    tableView->setBottomMargin(margins.bottom());
    tableView->setCacheBuffer(0);
    tableView->setWidth(tableWidth - margins.right() - cellWidth / 2);
    tableView->setHeight(tableHeight - margins.bottom() - cellHeight / 2);

    WAIT_UNTIL_POLISHED;

    // Flick table out of view left
    tableView->setContentX(-tableView->width() - outsideMargin);
    tableView->setContentY(0);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    QCOMPARE(tableViewPrivate->loadedTable.left(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.right(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.top(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.bottom(), rowCount - 1);

    // Flick table out of view right
    tableView->setContentX(tableWidth + outsideMargin);
    tableView->setContentY(0);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    QCOMPARE(tableViewPrivate->loadedTable.left(), columnCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.right(), columnCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.top(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.bottom(), rowCount - 1);

    // Flick table out of view on top
    tableView->setContentX(0);
    tableView->setContentY(-tableView->height() - outsideMargin);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    QCOMPARE(tableViewPrivate->loadedTable.left(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.right(), columnCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.top(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.bottom(), 0);

    // Flick table out of view at the bottom
    tableView->setContentX(0);
    tableView->setContentY(tableHeight + outsideMargin);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    QCOMPARE(tableViewPrivate->loadedTable.left(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.right(), columnCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.top(), rowCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.bottom(), rowCount - 1);

    // Flick table out of view left and top at the same time
    tableView->setContentX(-tableView->width() - outsideMargin);
    tableView->setContentY(-tableView->height() - outsideMargin);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    QCOMPARE(tableViewPrivate->loadedTable.left(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.right(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.top(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.bottom(), 0);

    // Flick table back to origo
    tableView->setContentX(0);
    tableView->setContentY(0);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    QCOMPARE(tableViewPrivate->loadedTable.left(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.right(), columnCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.top(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.bottom(), rowCount - 1);

    // Flick table out of view right and bottom at the same time
    tableView->setContentX(tableWidth + outsideMargin);
    tableView->setContentY(tableHeight + outsideMargin);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    QCOMPARE(tableViewPrivate->loadedTable.left(), columnCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.right(), columnCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.top(), rowCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.bottom(), rowCount - 1);

    // Flick table back to origo
    tableView->setContentX(0);
    tableView->setContentY(0);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    QCOMPARE(tableViewPrivate->loadedTable.left(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.right(), columnCount - 1);
    QCOMPARE(tableViewPrivate->loadedTable.top(), 0);
    QCOMPARE(tableViewPrivate->loadedTable.bottom(), rowCount - 1);
}

void tst_QQuickTableView::checkRowColumnCount()
{
    // If we flick several columns (rows) at the same time, check that we don't
    // end up with loading more delegate items into memory than necessary. We
    // should free up columns as we go before loading new ones.
    LOAD_TABLEVIEW("countingtableview.qml");

    const char *maxDelegateCountProp = "maxDelegateCount";
    auto model = TestModelAsVariant(100, 100);

    tableView->setModel(model);

    WAIT_UNTIL_POLISHED;

    const int tableViewCount = tableViewPrivate->loadedItems.count();
    const int qmlCountAfterInit = view->rootObject()->property(maxDelegateCountProp).toInt();
    QCOMPARE(tableViewCount, qmlCountAfterInit);

    // This test will keep track of the maximum number of delegate items TableView
    // had to show at any point while flicking (in countingtableview.qml). Because
    // of the geometries chosen for TableView and the delegate, only complete columns
    // will be shown at start-up. But as we flick around, we expect the count to
    // increase with one extra column. This is because TableView sometimes end up
    // showing half a column on the left side, and half a column on the right side.
    const QRect loadedTable = tableViewPrivate->loadedTable;
    QVERIFY(loadedTable.height() > loadedTable.width());
    QCOMPARE(tableViewPrivate->loadedTableOuterRect.width(), tableView->width());
    QCOMPARE(tableViewPrivate->loadedTableOuterRect.height(), tableView->height());
    const int expectedMaxCountAfterFlick = qmlCountAfterInit + loadedTable.height();

    // Flick a long distance right
    tableView->setContentX(tableView->width() * 2);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    const int qmlCountAfterRightFlick = view->rootObject()->property(maxDelegateCountProp).toInt();
    QCOMPARE(qmlCountAfterRightFlick, expectedMaxCountAfterFlick);

    // Flick a long distance down
    tableView->setContentX(tableView->height() * 2);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    const int qmlCountAfterDownFlick = view->rootObject()->property(maxDelegateCountProp).toInt();
    QCOMPARE(qmlCountAfterDownFlick, expectedMaxCountAfterFlick);

    // Flick a long distance left
    tableView->setContentX(0);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    const int qmlCountAfterLeftFlick = view->rootObject()->property(maxDelegateCountProp).toInt();
    QCOMPARE(qmlCountAfterLeftFlick, expectedMaxCountAfterFlick);

    // Flick a long distance up
    tableView->setContentY(0);
    tableView->polish();

    WAIT_UNTIL_POLISHED;

    const int qmlCountAfterUpFlick = view->rootObject()->property(maxDelegateCountProp).toInt();
    QCOMPARE(qmlCountAfterUpFlick, expectedMaxCountAfterFlick);
}

void tst_QQuickTableView::modelSignals()
{
    LOAD_TABLEVIEW("plaintableview.qml");

    TestModel model(1, 1);
    tableView->setModel(QVariant::fromValue(&model));
    WAIT_UNTIL_POLISHED;
    QCOMPARE(tableView->rows(), 1);
    QCOMPARE(tableView->columns(), 1);

    QVERIFY(model.insertRows(0, 1));
    WAIT_UNTIL_POLISHED;
    QCOMPARE(tableView->rows(), 2);
    QCOMPARE(tableView->columns(), 1);

    QVERIFY(model.removeRows(1, 1));
    WAIT_UNTIL_POLISHED;
    QCOMPARE(tableView->rows(), 1);
    QCOMPARE(tableView->columns(), 1);

    model.insertColumns(1, 1);
    WAIT_UNTIL_POLISHED;
    QCOMPARE(tableView->rows(), 1);
    QCOMPARE(tableView->columns(), 2);

    model.removeColumns(1, 1);
    WAIT_UNTIL_POLISHED;
    QCOMPARE(tableView->rows(), 1);
    QCOMPARE(tableView->columns(), 1);

    model.setRowCount(10);
    WAIT_UNTIL_POLISHED;
    QCOMPARE(tableView->rows(), 10);
    QCOMPARE(tableView->columns(), 1);

    model.setColumnCount(10);
    WAIT_UNTIL_POLISHED;
    QCOMPARE(tableView->rows(), 10);
    QCOMPARE(tableView->columns(), 10);

    model.setRowCount(0);
    WAIT_UNTIL_POLISHED;
    QCOMPARE(tableView->rows(), 0);
    QCOMPARE(tableView->columns(), 10);

    model.setColumnCount(0);
    // TODO: When the QAbstractItemModel's column count is set to 0,
    // QQmlAdaptorModel::columnCount() likes to return whatever it was previously,
    // even though the model doesn't actually have any columns... not sure what to do about that.
    QCOMPARE(tableView->rows(), 0);
    QCOMPARE(tableView->columns(), 10);
}

QTEST_MAIN(tst_QQuickTableView)

#include "tst_qquicktableview.moc"