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#ifndef QT3DCORE_QBACKENDNODETESTER_H
#define QT3DCORE_QBACKENDNODETESTER_H

#include <QObject>
#include <Qt3DCore/qnodeid.h>
#include <Qt3DCore/qscenechange.h>
#include <Qt3DCore/qnodecreatedchange.h>
#include <Qt3DCore/qnode.h>

QT_BEGIN_NAMESPACE

namespace Qt3DCore {

class QBackendNode;

class QBackendNodeTester : public QObject
{
    Q_OBJECT
public:
    explicit QBackendNodeTester(QObject *parent = 0);

    // Proxies to allow test classes to call private methods on QBackendNode
    void setPeerId(QBackendNode *backend, QNodeId id);
    void sceneChangeEvent(QBackendNode *backend, const Qt3DCore::QSceneChangePtr &e);
    Qt3DCore::QNodeCreatedChangeBasePtr creationChange(QNode *frontend) const;

    template<class Backend>
    void simulateInitializationSync(QNode *frontend, Backend *backend)
    {
        Q_ASSERT(frontend);
        Q_ASSERT(backend);

        backend->setPeerId(frontend->id());
        backend->setEnabled(frontend->isEnabled());
        backend->syncFromFrontEnd(frontend, true);
    }

    void simulateInitialization(QNode *frontend, QBackendNode *backend);
};

} // namespace Qt3DCore

QT_END_NAMESPACE

#endif // QT3DCORE_QBACKENDNODETESTER_H
