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#include <QtTest/QTest>
#include <Qt3DCore/private/qaspectfactory_p.h>
#include <Qt3DCore/QAbstractAspect>

using namespace QT_PREPEND_NAMESPACE(Qt3DCore);

#define FAKE_ASPECT(ClassName) \
class ClassName : public QAbstractAspect \
{ \
    Q_OBJECT \
public: \
    explicit ClassName(QObject *parent = 0) \
        : QAbstractAspect(parent) {} \
\
private: \
    void onRootEntityChanged(QEntity *) Q_DECL_OVERRIDE {} \
    void onInitialize(const QVariantMap &) Q_DECL_OVERRIDE {} \
    void onStartup() Q_DECL_OVERRIDE {} \
    void onShutdown() Q_DECL_OVERRIDE {} \
    void onCleanup() Q_DECL_OVERRIDE {} \
\
    QVector<QAspectJobPtr> jobsToExecute(qint64) Q_DECL_OVERRIDE \
    { \
        return QVector<QAspectJobPtr>(); \
    } \
};

FAKE_ASPECT(DefaultFakeAspect)
FAKE_ASPECT(AnotherFakeAspect)

QT3D_REGISTER_ASPECT("default", DefaultFakeAspect)

class tst_QAspectFactory : public QObject
{
    Q_OBJECT
private Q_SLOTS:
    void shoulHaveDefaultState()
    {
        // GIVEN
        QAspectFactory factory;

        // THEN
        QCOMPARE(factory.availableFactories().size(), 1);
        QCOMPARE(factory.availableFactories().first(), QString("default"));

        // WHEN
        QAbstractAspect *aspect = factory.createAspect(QStringLiteral("default"));

        // THEN
        QVERIFY(qobject_cast<DefaultFakeAspect*>(aspect) != Q_NULLPTR);
        QVERIFY(aspect->parent() == Q_NULLPTR);
    }

    void shouldKnowAspectNames()
    {
        // GIVEN
        QAspectFactory factory;

        // WHEN
        DefaultFakeAspect fake;
        AnotherFakeAspect missing;

        // THEN
        QCOMPARE(factory.aspectName(&fake), QString("default"));
        QCOMPARE(factory.aspectName(&missing), QString());
    }

    void shouldGracefulyHandleMissingFactories()
    {
        // GIVEN
        QAspectFactory factory;

        // WHEN
        QAbstractAspect *aspect = factory.createAspect(QStringLiteral("missing"), this);

        // THEN
        QVERIFY(qobject_cast<AnotherFakeAspect*>(aspect) == Q_NULLPTR);
    }
};

QTEST_MAIN(tst_QAspectFactory)

#include "tst_qaspectfactory.moc"
