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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (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 qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/


#include <QtTest/QtTest>
#include <qdirmodel.h>
#include <qapplication.h>
#include <qtreeview.h>
#include <qdir.h>
#include <qdebug.h>

//TESTED_CLASS=
//TESTED_FILES=

class tst_QDirModel : public QObject
{
    Q_OBJECT

public:

    tst_QDirModel();
    virtual ~tst_QDirModel();


public slots:
    void initTestCase();
    void cleanupTestCase();
    void init();
    void cleanup();
private slots:
    void getSetCheck();
    /*
    void construct();
    void rowCount();
    void columnCount();
    void t_data();
    void setData();
    void hasChildren();
    void isEditable();
    void isDragEnabled();
    void isDropEnabled();
    void sort();
    */
    bool rowsAboutToBeRemoved_init(const QString &test_path, const QStringList &initial_files);
    bool rowsAboutToBeRemoved_cleanup(const QString &test_path);
    void rowsAboutToBeRemoved_data();
    void rowsAboutToBeRemoved();

    void mkdir_data();
    void mkdir();

    void rmdir_data();
    void rmdir();
    
    void filePath();

    void hidden();

    void fileName();
    void fileName_data();
    void task196768_sorting();
    void filter();

    void task244669_remove();
};

// Testing get/set functions
void tst_QDirModel::getSetCheck()
{
    QDirModel obj1;
    // QFileIconProvider * QDirModel::iconProvider()
    // void QDirModel::setIconProvider(QFileIconProvider *)
    QFileIconProvider *var1 = new QFileIconProvider;
    obj1.setIconProvider(var1);
    QCOMPARE(var1, obj1.iconProvider());
    obj1.setIconProvider((QFileIconProvider *)0);
    QCOMPARE((QFileIconProvider *)0, obj1.iconProvider());
    delete var1;

    // bool QDirModel::resolveSymlinks()
    // void QDirModel::setResolveSymlinks(bool)
    obj1.setResolveSymlinks(false);
    QCOMPARE(false, obj1.resolveSymlinks());
    obj1.setResolveSymlinks(true);
    QCOMPARE(true, obj1.resolveSymlinks());

    // bool QDirModel::lazyChildCount()
    // void QDirModel::setLazyChildCount(bool)
    obj1.setLazyChildCount(false);
    QCOMPARE(false, obj1.lazyChildCount());
    obj1.setLazyChildCount(true);
    QCOMPARE(true, obj1.lazyChildCount());
}


Q_DECLARE_METATYPE(QModelIndex)
Q_DECLARE_METATYPE(QModelIndexList)

tst_QDirModel::tst_QDirModel()

{
}

tst_QDirModel::~tst_QDirModel()
{
}

void tst_QDirModel::initTestCase()
{
}

void tst_QDirModel::cleanupTestCase()
{
    QDir current;
    current.rmdir(".qtest_hidden");
}

void tst_QDirModel::init()
{
}

void tst_QDirModel::cleanup()
{
}

/*
  tests
*/
/*
void tst_QDirModel::construct()
{
    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/test");
    index = model.index(2, 0, index);
    QVERIFY(index.isValid());
    QFileInfo info(QDir::currentPath() + "/test/file03.tst");
    QCOMPARE(model.filePath(index), info.absoluteFilePath());
}

void tst_QDirModel::rowCount()
{
    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/test");
    QVERIFY(index.isValid());
    QCOMPARE(model.rowCount(index), 4);
}

void tst_QDirModel::columnCount()
{
    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/test");
    QVERIFY(index.isValid());
    QCOMPARE(model.columnCount(index), 4);
}

void tst_QDirModel::t_data()
{
    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/test");
    QVERIFY(index.isValid());
    QCOMPARE(model.rowCount(index), 4);

    index = model.index(2, 0, index);
    QVERIFY(index.isValid());
    QCOMPARE(model.data(index).toString(), QString::fromLatin1("file03.tst"));
    QCOMPARE(model.rowCount(index), 0);
}

void tst_QDirModel::setData()
{
    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/test");
    QVERIFY(index.isValid());

    index = model.index(2, 0, index);
    QVERIFY(index.isValid());
    QVERIFY(!model.setData(index, "file0X.tst", Qt::EditRole));
}

void tst_QDirModel::hasChildren()
{
    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/test");
    QVERIFY(index.isValid());

    index = model.index(2, 0, index);
    QVERIFY(index.isValid());
    QVERIFY(!model.hasChildren(index));
}

void tst_QDirModel::isEditable()
{
    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/test");
    QVERIFY(index.isValid());

    index = model.index(2, 0, index);
    QVERIFY(index.isValid());
    QVERIFY(!(model.flags(index) & Qt::ItemIsEditable));
}

void tst_QDirModel::isDragEnabled()
{
    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/test");
    QVERIFY(index.isValid());

    index = model.index(2, 0, index);
    QVERIFY(index.isValid());
    QVERIFY(model.flags(index) & Qt::ItemIsDragEnabled);
}

void tst_QDirModel::isDropEnabled()
{
    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/test");
    QVERIFY(index.isValid());

    index = model.index(2, 0, index);
    QVERIFY(!(model.flags(index) & Qt::ItemIsDropEnabled));
}

void tst_QDirModel::sort()
{
    QDirModel model;
    QModelIndex parent = model.index(QDir::currentPath() + "/test");
    QVERIFY(parent.isValid());

    QModelIndex index = model.index(0, 0, parent);
    QCOMPARE(model.data(index).toString(), QString::fromLatin1("file01.tst"));

    index = model.index(3, 0, parent);
    QCOMPARE(model.data(index).toString(), QString::fromLatin1("file04.tst"));

    model.sort(0, Qt::DescendingOrder);
    parent = model.index(QDir::currentPath() + "/test");

    index = model.index(0, 0, parent);
    QCOMPARE(model.data(index).toString(), QString::fromLatin1("file04.tst"));

    index = model.index(3, 0, parent);
    QCOMPARE(model.data(index).toString(), QString::fromLatin1("file01.tst"));
}
*/

void tst_QDirModel::mkdir_data()
{
    QTest::addColumn<QString>("dirName"); // the directory to be made under <currentpath>/dirtest
    QTest::addColumn<bool>("mkdirSuccess");
    QTest::addColumn<int>("rowCount");

    QTest::newRow("okDirName") << QString("test2") << true << 2;
    QTest::newRow("existingDirName") << QString("test1") << false << 1;
    QTest::newRow("nameWithSpace") << QString("ab cd") << true << 2;
    QTest::newRow("emptyDirName") << QString("") << false << 1;
    QTest::newRow("nullDirName") << QString() << false << 1;
    
/*
    QTest::newRow("recursiveDirName") << QString("test2/test3") << false << false;
    QTest::newRow("singleDotDirName") << QString("./test3") << true << true;
    QTest::newRow("outOfTreeDirName") << QString("../test4") << false << false;
    QTest::newRow("insideTreeDirName") << QString("../dirtest/test4") << true << true;
    QTest::newRow("insideTreeDirName2") << QString("./././././../dirtest/./../dirtest/test4") << true << true;
    QTest::newRow("absoluteDirName") << QString(QDir::currentPath() + "/dirtest/test5") << true << true;
    QTest::newRow("outOfTreeDirName") << QString(QDir::currentPath() + "/test5") << false << false;

    // Directory names only illegal on Windows
#ifdef Q_WS_WIN
    QTest::newRow("illegalDirName") << QString("*") << false << false;
    QTest::newRow("illegalDirName2") << QString("|") << false << false;
    QTest::newRow("onlySpace") << QString(" ") << false << false;
#endif
    */
}

void tst_QDirModel::mkdir()
{
    QFETCH(QString, dirName);
    QFETCH(bool, mkdirSuccess);
    QFETCH(int, rowCount);

    QDirModel model;
    model.setReadOnly(false);

    QModelIndex parent = model.index(SRCDIR "dirtest");
    QVERIFY(parent.isValid());
    QCOMPARE(model.rowCount(parent), 1); // start out with only 'test1' - in's in the depot

    QModelIndex index = model.mkdir(parent, dirName);
    bool success = index.isValid();
    int rows = model.rowCount(parent);

    if (success && !model.rmdir(index))
        QVERIFY(QDir(SRCDIR "dirtests").rmdir(dirName));

    QCOMPARE(rows, rowCount);
    QCOMPARE(success, mkdirSuccess);
}

void tst_QDirModel::rmdir_data()
{
    QTest::addColumn<QString>("dirName"); // <currentpath>/dirtest/dirname
    QTest::addColumn<bool>("rmdirSuccess");
    QTest::addColumn<int>("rowCount");

    QTest::newRow("okDirName") << QString("test2") << true << 2;
    QTest::newRow("existingDirName") << QString("test1") << false << 1;
    QTest::newRow("nameWithSpace") << QString("ab cd") << true << 2;
    QTest::newRow("emptyDirName") << QString("") << false << 1;
    QTest::newRow("nullDirName") << QString() << false << 1;
}

void tst_QDirModel::rmdir()
{
    QFETCH(QString, dirName);
    QFETCH(bool, rmdirSuccess);
    QFETCH(int, rowCount);

    QDirModel model;
    model.setReadOnly(false);

    QModelIndex parent = model.index(SRCDIR  "/dirtest");
    QVERIFY(parent.isValid());
    QCOMPARE(model.rowCount(parent), 1); // start out with only 'test1' - in's in the depot

    QModelIndex index;
    if (rmdirSuccess) {
        index = model.mkdir(parent, dirName);
        QVERIFY(index.isValid());
    }

    int rows = model.rowCount(parent);
    bool success = model.rmdir(index);

    if (!success) { // cleanup
        QDir dirtests(SRCDIR  "/dirtests/");
        dirtests.rmdir(dirName);
    }

    QCOMPARE(rows, rowCount);
    QCOMPARE(success, rmdirSuccess);
}

void tst_QDirModel::rowsAboutToBeRemoved_data()
{
    QTest::addColumn<QString>("test_path");
    QTest::addColumn<QStringList>("initial_files");
    QTest::addColumn<int>("remove_row");
    QTest::addColumn<QStringList>("remove_files");
    QTest::addColumn<QStringList>("expected_files");

    QString test_path = "test2";
    QStringList initial_files = (QStringList()
                                 << "file1.tst"
                                 << "file2.tst"
                                 << "file3.tst"
                                 << "file4.tst");

    QTest::newRow("removeFirstRow")
        << test_path
        << initial_files
        << 0
        << (QStringList() << "file1.tst")
        << (QStringList() << "file2.tst" << "file3.tst" << "file4.tst");

    QTest::newRow("removeMiddle")
        << test_path
        << initial_files
        << 1
        << (QStringList() << "file2.tst")
        << (QStringList() << "file1.tst" << "file3.tst" << "file4.tst");

    QTest::newRow("removeLastRow")
        << test_path
        << initial_files
        << 3
        << (QStringList() << "file4.tst")
        << (QStringList() <<  "file1.tst" << "file2.tst" << "file3.tst");

}

bool tst_QDirModel::rowsAboutToBeRemoved_init(const QString &test_path, const QStringList &initial_files)
{
    QString path = QDir::currentPath() + "/" + test_path;
    if (!QDir::current().mkdir(test_path) && false) { // FIXME
        qDebug() << "failed to create dir" << path;
        return false;
    }

    for (int i = 0; i < initial_files.count(); ++i) {
        QFile file(path + "/" + initial_files.at(i));
        if (!file.open(QIODevice::WriteOnly)) {
            qDebug() << "failed to open file" << initial_files.at(i);
            return false;
        }
        if (!file.resize(1024)) {
            qDebug() << "failed to resize file" << initial_files.at(i);
            return false;
        }
        if (!file.flush()) {
            qDebug() << "failed to flush file" << initial_files.at(i);
            return false;
        }
    }

    return true;
}

bool tst_QDirModel::rowsAboutToBeRemoved_cleanup(const QString &test_path)
{
    QString path = QDir::currentPath() + "/" + test_path;
    QDir dir(path, "*", QDir::SortFlags(QDir::Name|QDir::IgnoreCase), QDir::Files);
    QStringList files = dir.entryList();
    
    for (int i = 0; i < files.count(); ++i) {
        if (!dir.remove(files.at(i))) {
            qDebug() << "failed to remove file" << files.at(i);
            return false;
        }
    }

    if (!QDir::current().rmdir(test_path) && false) { // FIXME
        qDebug() << "failed to remove dir" << test_path;
        return false;
    }

    return true;
}

void tst_QDirModel::rowsAboutToBeRemoved()
{
    QFETCH(QString, test_path);
    QFETCH(QStringList, initial_files);
    QFETCH(int, remove_row);
    QFETCH(QStringList, remove_files);
    QFETCH(QStringList, expected_files);

    rowsAboutToBeRemoved_cleanup(test_path); // clean up first
    QVERIFY(rowsAboutToBeRemoved_init(test_path, initial_files));

    QDirModel model;
    model.setReadOnly(false);

    qRegisterMetaType<QModelIndex>("QModelIndex");

    // NOTE: QDirModel will call refres() when a file is removed. refresh() will reread the entire directory,
    // and emit layoutAboutToBeChanged and layoutChange. So, instead of checking for
    // rowsAboutToBeRemoved/rowsRemoved we check for layoutAboutToBeChanged/layoutChanged
    QSignalSpy spy(&model, SIGNAL(layoutAboutToBeChanged()));

    QModelIndex parent = model.index(test_path);
    QVERIFY(parent.isValid());
        
    // remove the file
    {
        QModelIndex index = model.index(remove_row, 0, parent);
        QVERIFY(index.isValid());
        QVERIFY(model.remove(index));
    }

    QCOMPARE(spy.count(), 1);

    // Compare the result
    for (int row = 0; row < expected_files.count(); ++row) {
        QModelIndex index = model.index(row, 0, parent);
        QString str = index.data().toString();
        QCOMPARE(str, expected_files.at(row));
    }

    QVERIFY(rowsAboutToBeRemoved_cleanup(test_path));
}

void tst_QDirModel::hidden()
{
#ifdef Q_OS_UNIX
    QDir current;
    current.mkdir(".qtest_hidden");

    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/.qtest_hidden");
    //QVERIFY(!index.isValid()); // hidden items are not listed, but if you specify a valid path, it will give a valid index

    current.mkdir(".qtest_hidden/qtest_visible");
    QModelIndex index2 = model.index(QDir::currentPath() + "/.qtest_hidden/qtest_visible");
    QVERIFY(index2.isValid());

    QDirModel model2;
    model2.setFilter(model2.filter() | QDir::Hidden);
    index = model2.index(QDir::currentPath() + "/.qtest_hidden");
    QVERIFY(index.isValid());
#else
    QSKIP("Test not implemented on non-Unixes", SkipAll);
#endif
}

void tst_QDirModel::fileName_data()
{
    QTest::addColumn<QString>("path");
    QTest::addColumn<QString>("result");

    QTest::newRow("invalid") << "" << "";
    //QTest::newRow("root") << "/" << "/";
    //QTest::newRow("home") << "/home" << "home";
    // TODO add symlink test too
}

void tst_QDirModel::fileName()
{
    QDirModel model;

    QFETCH(QString, path);
    QFETCH(QString, result);
    QCOMPARE(model.fileName(model.index(path)), result);
}

#if 0
void tst_QDirModel::unreadable()
{
#ifdef Q_OS_UNIX
    //QFile current("qtest_unreadable");
    //QVERIFY(current.setPermissions(QFile::WriteOwner));

    QDirModel model;
    QModelIndex index = model.index(QDir::currentPath() + "/qtest_unreadable");
    QVERIFY(!index.isValid());

    QDirModel model2;
    model2.setFilter(model2.filter() | QDir::Hidden);
    index = model2.index(QDir::currentPath() + "/qtest_unreadable");
    QVERIFY(index.isValid());
#else
    QSKIP("Test not implemented on non-Unixes", SkipAll);
#endif
}
#endif

void tst_QDirModel::filePath()
{
    QFile::remove(SRCDIR "test.lnk");
    QVERIFY(QFile(SRCDIR "tst_qdirmodel.cpp").link(SRCDIR "test.lnk"));
    QDirModel model;
    model.setResolveSymlinks(false);
    QModelIndex index = model.index(SRCDIR "test.lnk");
    QVERIFY(index.isValid());
#ifndef Q_OS_WINCE
    QString path = SRCDIR;
#else
    QString path = QFileInfo(SRCDIR).absoluteFilePath() + "/";
#endif
    QCOMPARE(model.filePath(index), path + QString( "test.lnk"));
    model.setResolveSymlinks(true);
    QCOMPARE(model.filePath(index), path + QString( "tst_qdirmodel.cpp"));
    QFile::remove(SRCDIR "test.lnk");
}

void tst_QDirModel::task196768_sorting()
{
    //this task showed that the persistent model indexes got corrupted when sorting
    QString path = SRCDIR;

    QDirModel model; 
    QTreeView view;
    QPersistentModelIndex index = model.index(path);

    view.setModel(&model);
    QModelIndex index2 = model.index(path);
    QCOMPARE(index.data(), index2.data());
    view.setRootIndex(index); 
    index2 = model.index(path);
    QCOMPARE(index.data(), index2.data());
    view.setCurrentIndex(index);
    index2 = model.index(path);
    QCOMPARE(index.data(), index2.data());
    view.setSortingEnabled(true);
    index2 = model.index(path);
    QCOMPARE(index.data(), index2.data());
}

#if QT_VERSION >= 0x040102
void tst_QDirModel::filter()
{
    QDirModel model;
    model.setNameFilters(QStringList() << "*.nada");
    QModelIndex index = model.index(SRCDIR "test");
    Q_ASSERT(model.rowCount(index) == 0);
    QModelIndex index2 = model.index(SRCDIR "test/file01.tst");
    Q_ASSERT(!index2.isValid());
    Q_ASSERT(model.rowCount(index) == 0);
}
#endif

void tst_QDirModel::task244669_remove()
{
    QFile f1(SRCDIR "dirtest/f1.txt");
    QVERIFY(f1.open(QIODevice::WriteOnly));
    f1.close();
    QFile f2(SRCDIR "dirtest/f2.txt");
    QVERIFY(f2.open(QIODevice::WriteOnly));
    f2.close();

    QDirModel model;
    model.setReadOnly(false);
    QPersistentModelIndex parent = model.index(SRCDIR "dirtest");
    QPersistentModelIndex index2 = model.index(SRCDIR "dirtest/f2.txt");
    QPersistentModelIndex index1 = model.index(SRCDIR "dirtest/f1.txt");

    QVERIFY(parent.isValid());
    QVERIFY(index1.isValid());
    QVERIFY(index2.isValid());
    QCOMPARE(parent.data() , model.index(SRCDIR "dirtest").data());
    QCOMPARE(index1.data() , model.index(SRCDIR "dirtest/f1.txt").data());
    QCOMPARE(index2.data() , model.index(SRCDIR "dirtest/f2.txt").data());

    QVERIFY(model.remove(index1));

    QVERIFY(parent.isValid());
    QVERIFY(!index1.isValid());
    QVERIFY(index2.isValid());
    QCOMPARE(parent.data() , model.index(SRCDIR "dirtest").data());
    QCOMPARE(index2.data() , model.index(SRCDIR "dirtest/f2.txt").data());

    QVERIFY(model.remove(index2));

    QVERIFY(parent.isValid());
    QVERIFY(!index2.isValid());
    QVERIFY(!index1.isValid());
    QCOMPARE(parent.data() , model.index(SRCDIR "dirtest").data());
}

QTEST_MAIN(tst_QDirModel)
#include "tst_qdirmodel.moc"