Add Unit Test for QFrameGraphNode

Change-Id: I727e37e38526e8073e00229b544822f096665319
Reviewed-by: Andy Nichols <andy.nichols@theqtcompany.com>

1 files changed, 212 insertions, 0 deletions

diff --git a/tests/auto/render/qframegraphnode/tst_qframegraphnode.cpp b/tests/auto/render/qframegraphnode/tst_qframegraphnode.cpp
new file mode 100644
index 000000000..f0705a479
--- /dev/null
+++ b/tests/auto/render/qframegraphnode/tst_qframegraphnode.cpp
@@ -0,0 +1,212 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QTest>
+#include <Qt3DCore/private/qnode_p.h>
+#include <Qt3DCore/private/qscene_p.h>
+#include <Qt3DCore/qentity.h>
+
+#include <Qt3DRenderer/qframegraphnode.h>
+
+#include "testpostmanarbiter.h"
+
+class MyFrameGraphNode : public Qt3DRender::QFrameGraphNode
+{
+    Q_OBJECT
+public:
+    explicit MyFrameGraphNode(Qt3DCore::QNode *parent = Q_NULLPTR)
+        : QFrameGraphNode(parent)
+    {
+    }
+
+    ~MyFrameGraphNode()
+    {
+        QNode::cleanup();
+    }
+
+private:
+    QT3D_CLONEABLE(MyFrameGraphNode)
+};
+
+// We need to call QNode::clone which is protected
+// So we sublcass QNode instead of QObject
+class tst_QFrameGraphNode: public Qt3DCore::QNode
+{
+    Q_OBJECT
+public:
+    ~tst_QFrameGraphNode()
+    {
+        QNode::cleanup();
+    }
+
+private Q_SLOTS:
+
+    void checkSaneDefaults()
+    {
+        QScopedPointer<Qt3DRender::QFrameGraphNode> defaultFrameGraphNode(new MyFrameGraphNode);
+
+        QVERIFY(defaultFrameGraphNode->isEnabled());
+        QVERIFY(defaultFrameGraphNode->parentFrameGraphNode() == Q_NULLPTR);
+    }
+
+    void checkCloning_data()
+    {
+        QTest::addColumn<Qt3DRender::QFrameGraphNode *>("frameGraphNode");
+        QTest::addColumn<bool>("enabled");
+
+        Qt3DRender::QFrameGraphNode *defaultConstructed = new MyFrameGraphNode();
+        QTest::newRow("defaultConstructed") << defaultConstructed << true;
+
+        Qt3DRender::QFrameGraphNode *disabledFrameGraphNode = new MyFrameGraphNode();
+        disabledFrameGraphNode->setEnabled(false);
+        QTest::newRow("allBuffers") << disabledFrameGraphNode << false;
+    }
+
+    void checkCloning()
+    {
+        // GIVEN
+        QFETCH(Qt3DRender::QFrameGraphNode *, frameGraphNode);
+        QFETCH(bool, enabled);
+
+        // THEN
+        QCOMPARE(frameGraphNode->isEnabled(), enabled);
+
+        // WHEN
+        Qt3DRender::QFrameGraphNode *clone = static_cast<Qt3DRender::QFrameGraphNode *>(QNode::clone(frameGraphNode));
+
+        // THEN
+        QVERIFY(clone != Q_NULLPTR);
+        QCOMPARE(frameGraphNode->id(), clone->id());
+        QCOMPARE(frameGraphNode->isEnabled(), enabled);
+
+        delete frameGraphNode;
+        delete clone;
+    }
+
+    void checkPropertyUpdates()
+    {
+        // GIVEN
+        QScopedPointer<Qt3DRender::QFrameGraphNode> frameGraphNode(new MyFrameGraphNode());
+        TestArbiter arbiter(frameGraphNode.data());
+
+        // WHEN
+        frameGraphNode->setEnabled(false);
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 1);
+        Qt3DCore::QScenePropertyChangePtr change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
+        QCOMPARE(change->propertyName(), "enabled");
+        QCOMPARE(change->subjectId(), frameGraphNode->id());
+        QCOMPARE(change->value().toBool(), false);
+        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);
+
+        arbiter.events.clear();
+
+        // WHEN
+        frameGraphNode->setEnabled(false);
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 0);
+
+        // WHEN
+        frameGraphNode->setEnabled(true);
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 1);
+        change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
+        QCOMPARE(change->propertyName(), "enabled");
+        QCOMPARE(change->subjectId(), frameGraphNode->id());
+        QCOMPARE(change->value().toBool(), true);
+        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);
+
+        arbiter.events.clear();
+    }
+
+    void checkParentFrameNodeRetrieval()
+    {
+        // GIVEN
+        QScopedPointer<Qt3DRender::QFrameGraphNode> root(new MyFrameGraphNode);
+
+        Qt3DRender::QFrameGraphNode *child1 = new MyFrameGraphNode(root.data());
+        Qt3DRender::QFrameGraphNode *child2 = new MyFrameGraphNode(root.data());
+        Qt3DCore::QEntity *child3 = new Qt3DCore::QEntity(root.data());
+
+        Qt3DRender::QFrameGraphNode *child11 = new MyFrameGraphNode(child1);
+        Qt3DCore::QEntity *child21 = new Qt3DCore::QEntity(child2);
+        Qt3DRender::QFrameGraphNode *child31 = new MyFrameGraphNode(child3);
+
+        Qt3DRender::QFrameGraphNode *child211 = new MyFrameGraphNode(child21);
+
+        // WHEN
+        QCoreApplication::processEvents();
+
+        // THEN
+        QVERIFY(child1->parent() == root.data());
+        QVERIFY(child1->parentFrameGraphNode() == root.data());
+
+        QVERIFY(child2->parent() == root.data());
+        QVERIFY(child2->parentFrameGraphNode() == root.data());
+
+        QVERIFY(child3->parent() == root.data());
+
+
+        QVERIFY(child11->parent() == child1);
+        QVERIFY(child11->parentFrameGraphNode() == child1);
+
+        QVERIFY(child21->parent() == child2);
+
+        QVERIFY(child31->parent() == child3);
+        QVERIFY(child31->parentFrameGraphNode() == root.data());
+
+
+        QVERIFY(child211->parent() == child21);
+        QVERIFY(child211->parentFrameGraphNode() == child2);
+    }
+
+protected:
+    Qt3DCore::QNode *doClone() const Q_DECL_OVERRIDE
+    {
+        return Q_NULLPTR;
+    }
+
+};
+
+QTEST_MAIN(tst_QFrameGraphNode)
+
+#include "tst_qframegraphnode.moc"