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** This file is part of the test suite of the Qt Toolkit.
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#include <QtTest/QtTest>
#include <QtTest/QSignalSpy>
#include <QtQml/qqmlengine.h>
#include <QtQml/qqmlcomponent.h>
#include <QtCore/qdir.h>
#include <QtCore/qfile.h>
#include <QtCore/qabstractitemmodel.h>
#include <QDebug>
#include "../../shared/util.h"

// From qquickfolderlistmodel.h
const int FileNameRole = Qt::UserRole+1;
const int FilePathRole = Qt::UserRole+2;
enum SortField { Unsorted, Name, Time, Size, Type };

class tst_qquickfolderlistmodel : public QQmlDataTest
{
    Q_OBJECT
public:
    tst_qquickfolderlistmodel() : removeStart(0), removeEnd(0) {}

public slots:
    void removed(const QModelIndex &, int start, int end) {
        removeStart = start;
        removeEnd = end;
    }

private slots:
    void basicProperties();
    void resetFiltering();
    void refresh();

private:
    void checkNoErrors(const QQmlComponent& component);
    QQmlEngine engine;

    int removeStart;
    int removeEnd;
};

void tst_qquickfolderlistmodel::checkNoErrors(const QQmlComponent& component)
{
    // Wait until the component is ready
    QTRY_VERIFY(component.isReady() || component.isError());

    if (component.isError()) {
        QList<QQmlError> errors = component.errors();
        for (int ii = 0; ii < errors.count(); ++ii) {
            const QQmlError &error = errors.at(ii);
            QByteArray errorStr = QByteArray::number(error.line()) + ":" +
                                  QByteArray::number(error.column()) + ":" +
                                  error.description().toUtf8();
            qWarning() << errorStr;
        }
    }
    QVERIFY(!component.isError());
}

void tst_qquickfolderlistmodel::basicProperties()
{
    QQmlComponent component(&engine, testFileUrl("basic.qml"));
    checkNoErrors(component);

    QAbstractListModel *flm = qobject_cast<QAbstractListModel*>(component.create());
    QVERIFY(flm != 0);

    flm->setProperty("folder", dataDirectoryUrl());
    QTRY_COMPARE(flm->property("count").toInt(),4); // wait for refresh
    QCOMPARE(flm->property("folder").toUrl(), dataDirectoryUrl());
    QCOMPARE(flm->property("parentFolder").toUrl(), QUrl::fromLocalFile(QDir(directory()).canonicalPath()));
    QCOMPARE(flm->property("sortField").toInt(), int(Name));
    QCOMPARE(flm->property("nameFilters").toStringList(), QStringList() << "*.qml");
    QCOMPARE(flm->property("sortReversed").toBool(), false);
    QCOMPARE(flm->property("showDirs").toBool(), true);
    QCOMPARE(flm->property("showDotAndDotDot").toBool(), false);
    QCOMPARE(flm->property("showOnlyReadable").toBool(), false);
    QCOMPARE(flm->data(flm->index(0),FileNameRole).toString(), QLatin1String("basic.qml"));
    QCOMPARE(flm->data(flm->index(1),FileNameRole).toString(), QLatin1String("dummy.qml"));    
    
    flm->setProperty("folder",QUrl::fromLocalFile(""));
    QCOMPARE(flm->property("folder").toUrl(), QUrl::fromLocalFile(""));
}

void tst_qquickfolderlistmodel::resetFiltering()
{
    // see QTBUG-17837
    QQmlComponent component(&engine, testFileUrl("resetFiltering.qml"));
    checkNoErrors(component);

    QAbstractListModel *flm = qobject_cast<QAbstractListModel*>(component.create());
    QVERIFY(flm != 0);

    connect(flm, SIGNAL(rowsRemoved(const QModelIndex&,int,int)),
            this, SLOT(removed(const QModelIndex&,int,int)));

    flm->setProperty("folder", testFileUrl("resetfiltering"));
    QTRY_COMPARE(flm->property("count").toInt(),1); // should just be "test.txt" visible
    int count = flm->rowCount();
    QCOMPARE(removeStart, 0);
    QCOMPARE(removeEnd, count-1);

    flm->setProperty("folder", testFileUrl("resetfiltering/innerdir"));
    QTRY_COMPARE(flm->property("count").toInt(),1); // should just be "test2.txt" visible
    count = flm->rowCount();
    QCOMPARE(removeStart, 0);
    QCOMPARE(removeEnd, count-1);

    flm->setProperty("folder", testFileUrl("resetfiltering"));
    QTRY_COMPARE(flm->property("count").toInt(),1); // should just be "test.txt" visible
    count = flm->rowCount();
    QCOMPARE(removeStart, 0);
    QCOMPARE(removeEnd, count-1);
}

void tst_qquickfolderlistmodel::refresh()
{
    QQmlComponent component(&engine, testFileUrl("basic.qml"));
    checkNoErrors(component);

    QAbstractListModel *flm = qobject_cast<QAbstractListModel*>(component.create());
    QVERIFY(flm != 0);

    flm->setProperty("folder", dataDirectoryUrl());
    QTRY_COMPARE(flm->property("count").toInt(),4); // wait for refresh

    int count = flm->rowCount();

    connect(flm, SIGNAL(rowsRemoved(const QModelIndex&,int,int)),
            this, SLOT(removed(const QModelIndex&,int,int)));

    flm->setProperty("sortReversed", true);

    QTRY_COMPARE(removeStart, 0);
    QTRY_COMPARE(removeEnd, count-1); // wait for refresh
}

QTEST_MAIN(tst_qquickfolderlistmodel)

#include "tst_qquickfolderlistmodel.moc"