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#include <QtTest/QtTest>

#include <QtCore/QtCore>

#include <QtGui/QSortFilterProxyModel>

//TESTED_CLASS=QAbstractListModel QAbstractTableModel

//TESTED_FILES=

#include "dynamictreemodel.h"

Q_DECLARE_METATYPE(QModelIndex)

/*!

    Note that this doesn't test models, but any functionality that QAbstractItemModel shoudl provide

 */

class tst_QAbstractItemModel : public QObject

{

    Q_OBJECT

public:

    tst_QAbstractItemModel();

    virtual ~tst_QAbstractItemModel();

public slots:

    void initTestCase();

    void cleanupTestCase();

    void init();

    void cleanup();

private slots:

    void index();

    void parent();

    void hasChildren();

    void _data();

    void headerData();

    void itemData();

    void itemFlags();

    void match();

    void dropMimeData_data();

    void dropMimeData();

    void changePersistentIndex();

    void movePersistentIndex();

    void insertRows();

    void insertColumns();

    void removeRows();

    void removeColumns();

    void reset();

    void complexChangesWithPersistent();

    void testMoveSameParentUp_data();

    void testMoveSameParentUp();

    void testMoveSameParentDown_data();

    void testMoveSameParentDown();

    void testMoveToGrandParent_data();

    void testMoveToGrandParent();

    void testMoveToSibling_data();

    void testMoveToSibling();

    void testMoveToUncle_data();

    void testMoveToUncle();

    void testMoveToDescendants();

    void testMoveWithinOwnRange_data();

    void testMoveWithinOwnRange();

    void testReset();

private:

    DynamicTreeModel *m_model;

};

/*!

    Test model that impliments the pure vitual functions and anything else that is

    needed.

    It is a table implimented as a vector of vectors of strings.

 */

class QtTestModel: public QAbstractItemModel

{

public:

    QtTestModel(int rows, int columns, QObject *parent = 0);

    QtTestModel(const QVector<QVector<QString> > tbl, QObject *parent = 0);

    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;

    QModelIndex parent(const QModelIndex &) const;

    int rowCount(const QModelIndex &parent) const;

    int columnCount(const QModelIndex &parent) const;

    bool hasChildren(const QModelIndex &) const;

    QVariant data(const QModelIndex &idx, int) const;

    bool setData(const QModelIndex &idx, const QVariant &value, int);

    bool insertRows(int row, int count, const QModelIndex &parent= QModelIndex());

    bool insertColumns(int column, int count, const QModelIndex &parent= QModelIndex());

    void setPersistent(const QModelIndex &from, const QModelIndex &to);

    bool removeRows ( int row, int count, const QModelIndex & parent = QModelIndex() );

    bool removeColumns( int column, int count, const QModelIndex & parent = QModelIndex());

    void reset();

    int cCount, rCount;

    mutable bool wrongIndex;

    QVector<QVector<QString> > table;

};

QtTestModel::QtTestModel(int rows, int columns, QObject *parent)

    : QAbstractItemModel(parent), cCount(columns), rCount(rows), wrongIndex(false) {

    table.resize(rows);

    for (int r = 0; r < rows; ++r) {

        table[r].resize(columns);

        for (int c = 0; c < columns; ++c)

            table[r][c] = QString("%1/%2").arg(r).arg(c);

    }

}

QtTestModel::QtTestModel(const QVector<QVector<QString> > tbl, QObject *parent)

    : QAbstractItemModel(parent), wrongIndex(false) {

    table = tbl;

    rCount = tbl.count();

    cCount = tbl.at(0).count();

}

QModelIndex QtTestModel::index(int row, int column, const QModelIndex &parent) const

        { return hasIndex(row, column, parent) ? createIndex(row, column, 0) : QModelIndex(); }

QModelIndex QtTestModel::parent(const QModelIndex &) const { return QModelIndex(); }

int QtTestModel::rowCount(const QModelIndex &parent) const { return parent.isValid() ? 0 : rCount; }

int QtTestModel::columnCount(const QModelIndex &parent) const { return parent.isValid() ? 0 : cCount; }

bool QtTestModel::hasChildren(const QModelIndex &) const { return false; }

QVariant QtTestModel::data(const QModelIndex &idx, int) const

{

    if (idx.row() < 0 || idx.column() < 0 || idx.column() > cCount || idx.row() > rCount) {

        wrongIndex = true;

        qWarning("got invalid modelIndex %d/%d", idx.row(), idx.column());

        return QVariant();

    }

    return table.at(idx.row()).at(idx.column());

}

bool QtTestModel::setData(const QModelIndex &idx, const QVariant &value, int)

{

    table[idx.row()][idx.column()] = value.toString();

    return true;

}

bool QtTestModel::insertRows(int row, int count, const QModelIndex &parent)

{

    QAbstractItemModel::beginInsertRows(parent, row, row + count - 1);

    int cc = columnCount(parent);

    table.insert(row, count, QVector<QString>(cc));

    rCount = table.count();

    QAbstractItemModel::endInsertRows();

    return true;

}

bool QtTestModel::insertColumns(int column, int count, const QModelIndex &parent)

{

    QAbstractItemModel::beginInsertColumns(parent, column, column + count - 1);

    int rc = rowCount(parent);

    for (int i = 0; i < rc; ++i)

        table[i].insert(column, 1, "");

    cCount = table.at(0).count();

    QAbstractItemModel::endInsertColumns();

    return true;

}

void QtTestModel::setPersistent(const QModelIndex &from, const QModelIndex &to)

{

    changePersistentIndex(from, to);

}

bool QtTestModel::removeRows( int row, int count, const QModelIndex & parent)

{

    QAbstractItemModel::beginRemoveRows(parent, row, row + count - 1);

    for (int r = row+count-1; r >= row; --r)

        table.remove(r);

    rCount = table.count();

    QAbstractItemModel::endRemoveRows();

    return true;

}

bool QtTestModel::removeColumns(int column, int count, const QModelIndex & parent)

{

    QAbstractItemModel::beginRemoveColumns(parent, column, column + count - 1);

    for (int c = column+count-1; c > column; --c)

        for (int r = 0; r < rCount; ++r)

            table[r].remove(c);

    cCount = table.at(0).count();

    QAbstractItemModel::endRemoveColumns();

    return true;

}

void QtTestModel::reset()

{

    QAbstractItemModel::reset();

}

tst_QAbstractItemModel::tst_QAbstractItemModel()

{

}

tst_QAbstractItemModel::~tst_QAbstractItemModel()

{

}

/**

 * The source Model *must* be initialized before the _data function, since the _data function uses QModelIndexes to reference the items in the tables.

 * Therefore, we must initialize it globally.

 */

void tst_QAbstractItemModel::initTestCase()

{

    qRegisterMetaType<QModelIndex>("QModelIndex");

}

void tst_QAbstractItemModel::cleanupTestCase()

{

}

void tst_QAbstractItemModel::init()

{

    m_model = new DynamicTreeModel(this);

    ModelInsertCommand *insertCommand = new ModelInsertCommand(m_model, this);

    insertCommand->setNumCols(4);

    insertCommand->setStartRow(0);

    insertCommand->setEndRow(9);

    insertCommand->doCommand();

    insertCommand = new ModelInsertCommand(m_model, this);

    insertCommand->setAncestorRowNumbers(QList<int>() << 5);

    insertCommand->setNumCols(4);

    insertCommand->setStartRow(0);

    insertCommand->setEndRow(9);

    insertCommand->doCommand();

}

void tst_QAbstractItemModel::cleanup()

{

}

/*

  tests

*/

void tst_QAbstractItemModel::index()

{

    QtTestModel model(1, 1);

    QModelIndex idx = model.index(0, 0, QModelIndex());

    QVERIFY(idx.isValid());

}

void tst_QAbstractItemModel::parent()

{

    QtTestModel model(1, 1);

    QModelIndex idx = model.index(0, 0, QModelIndex());

    QModelIndex par = model.parent(idx);

    QVERIFY(!par.isValid());

}

void tst_QAbstractItemModel::hasChildren()

{

    QtTestModel model(1, 1);

    QModelIndex idx = model.index(0, 0, QModelIndex());

    QVERIFY(model.hasChildren(idx) == false);

}

void tst_QAbstractItemModel::_data()

{

    QtTestModel model(1, 1);

    QModelIndex idx = model.index(0, 0, QModelIndex());

    QVERIFY(idx.isValid());

    QCOMPARE(model.data(idx, Qt::DisplayRole).toString(), QString("0/0"));

    // Default does nothing

    QCOMPARE(model.setHeaderData(0, Qt::Horizontal, QVariant(0), 0), false);

}

void tst_QAbstractItemModel::headerData()

{

    QtTestModel model(1, 1);

    QCOMPARE(model.headerData(0, Qt::Horizontal, Qt::DisplayRole).toString(),

            QString("1"));

    // Default text alignment for header must be invalid

    QVERIFY( !model.headerData(0, Qt::Horizontal, Qt::TextAlignmentRole).isValid() );

}

void tst_QAbstractItemModel::itemData()

{

    QtTestModel model(1, 1);

    QModelIndex idx = model.index(0, 0, QModelIndex());

    QVERIFY(idx.isValid());

    QMap<int, QVariant> dat = model.itemData(idx);

    QCOMPARE(dat.count(Qt::DisplayRole), 1);

    QCOMPARE(dat.value(Qt::DisplayRole).toString(), QString("0/0"));

}

void tst_QAbstractItemModel::itemFlags()

{

    QtTestModel model(1, 1);

    QModelIndex idx = model.index(0, 0, QModelIndex());

    QVERIFY(idx.isValid());

    Qt::ItemFlags flags = model.flags(idx);

    QCOMPARE(Qt::ItemIsSelectable|Qt::ItemIsEnabled, flags);

}

void tst_QAbstractItemModel::match()

{

    QtTestModel model(4, 1);

    QModelIndex start = model.index(0, 0, QModelIndex());

    QVERIFY(start.isValid());

    QModelIndexList res = model.match(start, Qt::DisplayRole, QVariant("1"), 3);

    QCOMPARE(res.count(), 1);

    QModelIndex idx = model.index(1, 0, QModelIndex());

    bool areEqual = (idx == res.first());

    QVERIFY(areEqual);

    model.setData(model.index(0, 0, QModelIndex()), "bat", Qt::DisplayRole);

    model.setData(model.index(1, 0, QModelIndex()), "cat", Qt::DisplayRole);

    model.setData(model.index(2, 0, QModelIndex()), "dog", Qt::DisplayRole);

    model.setData(model.index(3, 0, QModelIndex()), "boar", Qt::DisplayRole);

    res = model.match(start, Qt::DisplayRole, QVariant("dog"), -1, Qt::MatchExactly);

    QCOMPARE(res.count(), 1);

    res = model.match(start, Qt::DisplayRole, QVariant("a"), -1, Qt::MatchContains);

    QCOMPARE(res.count(), 3);

    res = model.match(start, Qt::DisplayRole, QVariant("b"), -1, Qt::MatchStartsWith);

    QCOMPARE(res.count(), 2);

    res = model.match(start, Qt::DisplayRole, QVariant("t"), -1, Qt::MatchEndsWith);

    QCOMPARE(res.count(), 2);

    res = model.match(start, Qt::DisplayRole, QVariant("*a*"), -1, Qt::MatchWildcard);

    QCOMPARE(res.count(), 3);

    res = model.match(start, Qt::DisplayRole, QVariant(".*O.*"), -1, Qt::MatchRegExp);

    QCOMPARE(res.count(), 2);

    res = model.match(start, Qt::DisplayRole, QVariant(".*O.*"), -1, Qt::MatchRegExp | Qt::MatchCaseSensitive);

    QCOMPARE(res.count(), 0);

    res = model.match(start, Qt::DisplayRole, QVariant("BOAR"), -1, Qt::MatchFixedString);

    QCOMPARE(res.count(), 1);

    res = model.match(start, Qt::DisplayRole, QVariant("bat"), -1,

                      Qt::MatchFixedString | Qt::MatchCaseSensitive);

    QCOMPARE(res.count(), 1);

}

typedef QPair<int, int> Position;

typedef QVector<QPair<int, int> > Selection;

typedef QVector<QVector<QString> > StringTable;

typedef QVector<QString> StringTableRow;

Q_DECLARE_METATYPE(Position)

Q_DECLARE_METATYPE(Selection)

Q_DECLARE_METATYPE(StringTable)

static StringTableRow qStringTableRow(const QString &s1, const QString &s2, const QString &s3)

{

    StringTableRow row;

    row << s1 << s2 << s3;

    return row;

}

#ifdef Q_CC_MSVC

# define STRINGTABLE (StringTable())

#else

# define STRINGTABLE StringTable()

#endif

void tst_QAbstractItemModel::dropMimeData_data()

{

    QTest::addColumn<StringTable>("src_table"); // drag source

    QTest::addColumn<StringTable>("dst_table"); // drop target

    QTest::addColumn<Selection>("selection"); // dragged items

    QTest::addColumn<Position>("dst_position"); // drop position

    QTest::addColumn<StringTable>("res_table"); // expected result

    {

        QTest::newRow("2x2 dropped at [0, 0]")

            << (STRINGTABLE // source table

                << (qStringTableRow("A", "B", "C"))

                << (qStringTableRow("D", "E", "F")))

            << (STRINGTABLE // destination table

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("3", "4", "5")))

            << (Selection() // selection

                << Position(0, 0) << Position(0, 1)

                << Position(1, 0) << Position(1, 1))

            << Position(0, 0) // drop position

            << (STRINGTABLE // resulting table

                << (qStringTableRow("A", "B", "" ))

                << (qStringTableRow("D", "E", "" ))

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("3", "4", "5")));

    }

    {

        QTest::newRow("2x2 dropped at [1, 0]")

            << (STRINGTABLE // source table

                << (qStringTableRow("A", "B", "C"))

                << (qStringTableRow("D", "E", "F")))

            << (STRINGTABLE // destination table

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("3", "4", "5")))

            << (Selection() // selection

                << Position(0, 0) << Position(0, 1)

                << Position(1, 0) << Position(1, 1))

            << Position(1, 0) // drop position

            << (STRINGTABLE // resulting table

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("A", "B", "" ))

                << (qStringTableRow("D", "E", "" ))

                << (qStringTableRow("3", "4", "5")));

    }

    {

        QTest::newRow("2x2 dropped at [3, 0]")

            << (STRINGTABLE // source table

                << (qStringTableRow("A", "B", "C"))

                << (qStringTableRow("D", "E", "F")))

            << (STRINGTABLE // destination table

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("3", "4", "5")))

            << (Selection() // selection

                << Position(0, 0) << Position(0, 1)

                << Position(1, 0) << Position(1, 1))

            << Position(3, 0) // drop position

            << (STRINGTABLE // resulting table

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("3", "4", "5"))

                << (qStringTableRow("A", "B", "" ))

                << (qStringTableRow("D", "E", "" )));

    }

    {

        QTest::newRow("2x2 dropped at [0, 1]")

            << (STRINGTABLE // source table

                << (qStringTableRow("A", "B", "C"))

                << (qStringTableRow("D", "E", "F")))

            << (STRINGTABLE // destination table

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("3", "4", "5")))

            << (Selection() // selection

                << Position(0, 0) << Position(0, 1)

                << Position(1, 0) << Position(1, 1))

            << Position(0, 1) // drop position

            << (STRINGTABLE // resulting table

                << (qStringTableRow("" , "A", "B"))

                << (qStringTableRow("" , "D", "E"))

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("3", "4", "5")));

    }

    {

        QTest::newRow("2x2 dropped at [0, 2] (line break)")

            << (STRINGTABLE // source table

                << (qStringTableRow("A", "B", "C"))

                << (qStringTableRow("D", "E", "F")))

            << (STRINGTABLE // destination table

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("3", "4", "5")))

            << (Selection() // selection

                << Position(0, 0) << Position(0, 1)

                << Position(1, 0) << Position(1, 1))

            << Position(0, 2) // drop position

            << (STRINGTABLE // resulting table

                << (qStringTableRow("" , "" , "A"))

                << (qStringTableRow("" , "" , "D"))

                << (qStringTableRow("" , "" , "B"))

                << (qStringTableRow("" , "" , "E"))

                << (qStringTableRow("0", "1", "2"))

                << (qStringTableRow("3", "4", "5")));

    }