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** This file is part of the test suite of the Qt Toolkit.
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#include <qtest.h>
#include <QDebug>

#include <QtWidgets/qgraphicsitem.h>
#include <QtDeclarative/qdeclarativeengine.h>
#include <QtDeclarative/qdeclarativecomponent.h>
#include <QtDeclarative/qdeclarativeitem.h>
#include <QtDeclarative/qdeclarativeproperty.h>
#include <qcolor.h>

class tst_qdeclarativecomponent : public QObject
{
    Q_OBJECT
public:
    tst_qdeclarativecomponent() { }

private slots:
    void null();
    void loadEmptyUrl();
    void qmlCreateObject();
    void qmlCreateObjectWithProperties();

private:
    QDeclarativeEngine engine;
};

void tst_qdeclarativecomponent::null()
{
    {
        QDeclarativeComponent c;
        QVERIFY(c.isNull());
    }

    {
        QDeclarativeComponent c(&engine);
        QVERIFY(c.isNull());
    }
}


void tst_qdeclarativecomponent::loadEmptyUrl()
{
    QDeclarativeComponent c(&engine);
    c.loadUrl(QUrl());

    QVERIFY(c.isError());
    QCOMPARE(c.errors().count(), 1);
    QDeclarativeError error = c.errors().first();
    QCOMPARE(error.url(), QUrl());
    QCOMPARE(error.line(), -1);
    QCOMPARE(error.column(), -1);
    QCOMPARE(error.description(), QLatin1String("Invalid empty URL"));
}

void tst_qdeclarativecomponent::qmlCreateObject()
{
    QDeclarativeEngine engine;
    QDeclarativeComponent component(&engine, QUrl("qrc:/createObject.qml"));
    QObject *object = component.create();
    QVERIFY(object != 0);

    QObject *testObject1 = object->property("qobject").value<QObject*>();
    QVERIFY(testObject1);
    QVERIFY(testObject1->parent() == object);

    QObject *testObject2 = object->property("declarativeitem").value<QObject*>();
    QVERIFY(testObject2);
    QVERIFY(testObject2->parent() == object);
    QCOMPARE(testObject2->metaObject()->className(), "QDeclarativeItem");

    //Note that QGraphicsObjects are not exposed to QML for instantiation, and so can't be used in a component directly
    //Also this is actually the extended type QDeclarativeGraphicsWidget, but it still doesn't inherit QDeclarativeItem
    QGraphicsObject *testObject3 = qobject_cast<QGraphicsObject*>(object->property("graphicswidget").value<QObject*>());
    QVERIFY(testObject3);
    QVERIFY(testObject3->parent() == object);
    QVERIFY(testObject3->parentItem() == qobject_cast<QGraphicsObject*>(object));
    QCOMPARE(testObject3->metaObject()->className(), "QDeclarativeGraphicsWidget");
}

void tst_qdeclarativecomponent::qmlCreateObjectWithProperties()
{
    QDeclarativeEngine engine;
    QDeclarativeComponent component(&engine, QUrl("qrc:/createObjectWithScript.qml"));
    QVERIFY2(component.errorString().isEmpty(), component.errorString().toUtf8());
    QObject *object = component.create();
    QVERIFY(object != 0);

    QObject *testObject1 = object->property("declarativerectangle").value<QObject*>();
    QVERIFY(testObject1);
    QVERIFY(testObject1->parent() == object);
    QCOMPARE(testObject1->property("x").value<int>(), 17);
    QCOMPARE(testObject1->property("y").value<int>(), 17);
    QCOMPARE(testObject1->property("color").value<QColor>(), QColor(255,255,255));
    QCOMPARE(QDeclarativeProperty::read(testObject1,"border.width").toInt(), 3);
    QCOMPARE(QDeclarativeProperty::read(testObject1,"innerRect.border.width").toInt(), 20);
    delete testObject1;

    QObject *testObject2 = object->property("declarativeitem").value<QObject*>();
    QVERIFY(testObject2);
    QVERIFY(testObject2->parent() == object);
    //QCOMPARE(testObject2->metaObject()->className(), "QDeclarativeItem_QML_2");
    QCOMPARE(testObject2->property("x").value<int>(), 17);
    QCOMPARE(testObject2->property("y").value<int>(), 17);
    QCOMPARE(testObject2->property("testBool").value<bool>(), true);
    QCOMPARE(testObject2->property("testInt").value<int>(), 17);
    QCOMPARE(testObject2->property("testObject").value<QObject*>(), object);
    delete testObject2;

    QObject *testBindingObj = object->property("bindingTestObject").value<QObject*>();
    QVERIFY(testBindingObj);
    QCOMPARE(testBindingObj->parent(), object);
    QCOMPARE(testBindingObj->property("testValue").value<int>(), 300);
    object->setProperty("width", 150);
    QCOMPARE(testBindingObj->property("testValue").value<int>(), 150 * 3);
    delete testBindingObj;

    QObject *testBindingThisObj = object->property("bindingThisTestObject").value<QObject*>();
    QVERIFY(testBindingThisObj);
    QCOMPARE(testBindingThisObj->parent(), object);
    QCOMPARE(testBindingThisObj->property("testValue").value<int>(), 900);
    testBindingThisObj->setProperty("width", 200);
    QCOMPARE(testBindingThisObj->property("testValue").value<int>(), 200 * 3);
    delete testBindingThisObj;
}

QTEST_MAIN(tst_qdeclarativecomponent)

#include "tst_qdeclarativecomponent.moc"