/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
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** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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#pragma once

#include <QAbstractItemModel>
#include <QObject>
#include <QStack>

class ModelTest : public QObject
{
    Q_OBJECT

public:
    ModelTest(QAbstractItemModel *model, QObject *parent = 0);

private Q_SLOTS:
    void nonDestructiveBasicTest();
    void rowCount();
    void columnCount();
    void hasIndex();
    void index();
    void parent();
    void data();

protected Q_SLOTS:
    void runAllTests();
    void layoutAboutToBeChanged();
    void layoutChanged();
    void rowsAboutToBeInserted(const QModelIndex &parent, int start, int end);
    void rowsInserted(const QModelIndex & parent, int start, int end);
    void rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
    void rowsRemoved(const QModelIndex & parent, int start, int end);

private:
    void checkChildren(const QModelIndex &parent, int currentDepth = 0);

    QAbstractItemModel *model;

    struct Changing
    {
        QModelIndex parent;
        int oldSize;
        QVariant last;
        QVariant next;
    };
    QStack<Changing> insert;
    QStack<Changing> remove;

    bool fetchingMore;

    QList<QPersistentModelIndex> changing;
};
