tst_quick3dnodeinstantiator.cpp

qt/qt3d/tests/auto/quick3d/quick3dnodeinstantiator/tst_quick3dnodeinstantiator.cpp

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// Copyright (C) 2013 Research In Motion.

// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#include "../../shared/util.h"

#include "stringmodel.h"

#include <qtest.h>

#include <QSignalSpy>

#include <QDebug>

#include <Qt3DQuick/private/quick3dnodeinstantiator_p.h>

#include <QtQml/qqmlengine.h>

#include <QtQml/qqmlcomponent.h>

#include <QtQml/qqmlcontext.h>

#include <QtQml/qqmlincubator.h>

using namespace Qt3DCore::Quick;

class tst_quick3dnodeinstantiator: public QQmlDataTest

    Q_OBJECT

private slots:

    void createNone();

    void createSingle();

    void createMultiple();

    void createNested();

    void stringModel();

    void activeProperty();

    void intModelChange();

    void createAndRemove();

    void asynchronous_data();

    void asynchronous();

};

void tst_quick3dnodeinstantiator::createNone()

    QQmlEngine engine;

    QQmlComponent component(&engine, testFileUrl("createNone.qml"));

    const auto root = qobject_cast<Qt3DCore::QNode*>(component.create());

    QVERIFY(root != 0);

    const auto instantiator = root->findChild<Quick3DNodeInstantiator*>();

    QVERIFY(instantiator != 0);

    QCOMPARE(instantiator->isActive(), true);

    QCOMPARE(instantiator->count(), 0);

    QCOMPARE(instantiator->property("success").toBool(), true);

    QVERIFY(instantiator->delegate()->isReady());

void tst_quick3dnodeinstantiator::createSingle()

    QQmlEngine engine;

    QQmlComponent component(&engine, testFileUrl("createSingle.qml"));

    const auto root = qobject_cast<Qt3DCore::QNode*>(component.create());

    QVERIFY(root != 0);

    const auto instantiator = root->findChild<Quick3DNodeInstantiator*>();

    QVERIFY(instantiator != 0);

    QCOMPARE(instantiator->isActive(), true);

    QCOMPARE(instantiator->count(), 1);

    QVERIFY(instantiator->delegate()->isReady());

    QObject *object = instantiator->object();

    QVERIFY(object);

    QCOMPARE(object->parent(), root);

    QCOMPARE(object->property("success").toBool(), true);

    QCOMPARE(object->property("idx").toInt(), 0);

void tst_quick3dnodeinstantiator::createMultiple()

    QQmlEngine engine;

    QQmlComponent component(&engine, testFileUrl("createMultiple.qml"));

    const auto root = qobject_cast<Qt3DCore::QNode*>(component.create());

    QVERIFY(root != 0);

    const auto instantiator = root->findChild<Quick3DNodeInstantiator*>();

    QVERIFY(instantiator != 0);

    QCOMPARE(instantiator->isActive(), true);

    QCOMPARE(instantiator->count(), 10);

    for (int i = 0; i < 10; i++) {

        QObject *object = instantiator->objectAt(i);

        QVERIFY(object);

        QCOMPARE(object->parent(), root);

        QCOMPARE(object->property("success").toBool(), true);

        QCOMPARE(object->property("idx").toInt(), i);

void tst_quick3dnodeinstantiator::createNested()

    QQmlEngine engine;

    QQmlComponent component(&engine, testFileUrl("createNested.qml"));

    const auto root = qobject_cast<Qt3DCore::QNode*>(component.create());

    QVERIFY(root != 0);

    auto instantiators = root->findChildren<Quick3DNodeInstantiator*>();

    QCOMPARE(instantiators.size(), 4);

    const auto outerInstantiator = instantiators.takeFirst();

    QCOMPARE(outerInstantiator->isActive(), true);

    QCOMPARE(outerInstantiator->count(), 3);

    for (const auto instantiator : instantiators) {

        QCOMPARE(instantiator->isActive(), true);

        QCOMPARE(instantiator->count(), 4);

        for (int i = 0; i < 4; i++) {

            auto object = instantiator->objectAt(i);

            QVERIFY(object);

            QCOMPARE(object->parent(), root);

            QCOMPARE(object->property("success").toBool(), true);

            QCOMPARE(object->property("idx").toInt(), i);

void tst_quick3dnodeinstantiator::stringModel()

    QQmlEngine engine;

    QQmlComponent component(&engine, testFileUrl("stringModel.qml"));

    const auto root = qobject_cast<Qt3DCore::QNode*>(component.create());

    QVERIFY(root != 0);

    const auto instantiator = root->findChild<Quick3DNodeInstantiator*>();

    QVERIFY(instantiator != 0);

    QCOMPARE(instantiator->isActive(), true);

    QCOMPARE(instantiator->count(), 4);

    for (int i = 0; i < 4; i++) {

        QObject *object = instantiator->objectAt(i);

        QVERIFY(object);

        QCOMPARE(object->parent(), root);

        QCOMPARE(object->property("success").toBool(), true);

void tst_quick3dnodeinstantiator::activeProperty()

    QQmlEngine engine;

    QQmlComponent component(&engine, testFileUrl("inactive.qml"));

    const auto root = qobject_cast<Qt3DCore::QNode*>(component.create());

    QVERIFY(root != 0);

    const auto instantiator = root->findChild<Quick3DNodeInstantiator*>();

    QVERIFY(instantiator != 0);

    QSignalSpy activeSpy(instantiator, SIGNAL(activeChanged()));

    QSignalSpy countSpy(instantiator, SIGNAL(countChanged()));

    QSignalSpy objectSpy(instantiator, SIGNAL(objectChanged()));

    QSignalSpy modelSpy(instantiator, SIGNAL(modelChanged()));

    QCOMPARE(instantiator->isActive(), false);

    QCOMPARE(instantiator->count(), 0);

    QVERIFY(instantiator->delegate()->isReady());

    QCOMPARE(activeSpy.size(), 0);

    QCOMPARE(countSpy.size(), 0);

    QCOMPARE(objectSpy.size(), 0);

    QCOMPARE(modelSpy.size(), 0);

    instantiator->setActive(true);

    QCOMPARE(instantiator->isActive(), true);

    QCOMPARE(instantiator->count(), 1);

    QCOMPARE(activeSpy.size(), 1);

    QCOMPARE(countSpy.size(), 1);

    QCOMPARE(objectSpy.size(), 1);

    QCOMPARE(modelSpy.size(), 0);

    QObject *object = instantiator->object();

    QVERIFY(object);

    QCOMPARE(object->parent(), root);

    QCOMPARE(object->property("success").toBool(), true);

    QCOMPARE(object->property("idx").toInt(), 0);

void tst_quick3dnodeinstantiator::intModelChange()

    QQmlEngine engine;

    QQmlComponent component(&engine, testFileUrl("createMultiple.qml"));

    const auto root = qobject_cast<Qt3DCore::QNode*>(component.create());

    QVERIFY(root != 0);

    const auto instantiator = root->findChild<Quick3DNodeInstantiator*>();

    QVERIFY(instantiator != 0);

    QSignalSpy activeSpy(instantiator, SIGNAL(activeChanged()));

    QSignalSpy countSpy(instantiator, SIGNAL(countChanged()));

    QSignalSpy objectSpy(instantiator, SIGNAL(objectChanged()));

    QSignalSpy modelSpy(instantiator, SIGNAL(modelChanged()));

    QCOMPARE(instantiator->count(), 10);

    QCOMPARE(activeSpy.size(), 0);

    QCOMPARE(countSpy.size(), 0);

    QCOMPARE(objectSpy.size(), 0);

    QCOMPARE(modelSpy.size(), 0);

    instantiator->setModel(QVariant(2));

    QCOMPARE(instantiator->count(), 2);

    QCOMPARE(activeSpy.size(), 0);

    QCOMPARE(countSpy.size(), 1);

    QCOMPARE(objectSpy.size(), 2);

    QCOMPARE(modelSpy.size(), 1);

    for (int i = 0; i < 2; i++) {

        QObject *object = instantiator->objectAt(i);

        QVERIFY(object);

        QCOMPARE(object->parent(), root);

        QCOMPARE(object->property("success").toBool(), true);

        QCOMPARE(object->property("idx").toInt(), i);

void tst_quick3dnodeinstantiator::createAndRemove()

    QQmlEngine engine;

    QQmlComponent component(&engine, testFileUrl("createAndRemove.qml"));

    StringModel *model = new StringModel("model1");

    engine.rootContext()->setContextProperty("model1", model);

    QObject *rootObject = component.create();

    QVERIFY(rootObject != nullptr);

    Quick3DNodeInstantiator *instantiator =

        qobject_cast<Quick3DNodeInstantiator*>(rootObject->findChild<QObject*>("instantiator1"));

    QVERIFY(instantiator != nullptr);

    model->drop(1);

    const QList<QString> names = { "Beta", "Gamma", "Delta" };

    for (int i = 0; i < 3; i++) {

        QObject *object = instantiator->objectAt(i);

        QVERIFY(object);

        QCOMPARE(object->property("datum").toString(), names[i]);

void tst_quick3dnodeinstantiator::asynchronous_data()

    QTest::addColumn<bool>("asyncIncubator");

    QTest::addColumn<QString>("fileName");

    QTest::newRow("Asynchronous Instantiator") << false << "createMultipleAsync.qml";

    QTest::newRow("Nested-asynchronous Instantiator") << true << "createMultiple.qml";

void tst_quick3dnodeinstantiator::asynchronous()

    QFETCH(bool, asyncIncubator);

    QFETCH(QString, fileName);

    QQmlEngine engine;

    QQmlIncubationController incubationController;

    engine.setIncubationController(&incubationController);

    QQmlComponent component(&engine, testFileUrl(fileName));

    QQmlIncubator incubator(asyncIncubator ? QQmlIncubator::Asynchronous : QQmlIncubator::Synchronous);

    component.create(incubator);

    while (!incubator.isReady())

        incubationController.incubateFor(10);

    QObject *rootObject = incubator.object();

    QVERIFY(rootObject != nullptr);

    while (incubationController.incubatingObjectCount() > 0)

        incubationController.incubateFor(10);

    Quick3DNodeInstantiator *instantiator = rootObject->findChild<Quick3DNodeInstantiator *>();

    QVERIFY(instantiator != nullptr);

    QCOMPARE(instantiator->isActive(), true);

    QCOMPARE(instantiator->count(), 10);

    for (int i=0; i<10; i++) {

        QObject *object = instantiator->objectAt(i);

        QVERIFY(object);

        QCOMPARE(object->parent(), rootObject);

        QCOMPARE(object->property("success").toBool(), true);

        QCOMPARE(object->property("idx").toInt(), i);

QTEST_MAIN(tst_quick3dnodeinstantiator)

#include "tst_quick3dnodeinstantiator.moc"

#include "moc_stringmodel.cpp"