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++ // Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++
++ #include <QtTest/QTest>
++ #include <Qt3DCore/qentity.h>
++
++ #include <Qt3DRender/private/nodemanagers_p.h>
++ #include <Qt3DRender/private/managers_p.h>
++ #include <Qt3DRender/private/entity_p.h>
++
++ #include <Qt3DRender/private/framegraphnode_p.h>
++ #include <Qt3DRender/private/framegraphvisitor_p.h>
++
++ #include <Qt3DRender/qtechniquefilter.h>
++ #include <Qt3DRender/qnodraw.h>
++ #include <Qt3DRender/qfrustumculling.h>
++ #include <Qt3DRender/qviewport.h>
++
++ #include "testaspect.h"
++
++ namespace {
++
++
++
++ } // anonymous
++
++ using FGIdType = QPair<Qt3DCore::QNodeId, Qt3DRender::Render::FrameGraphNode::FrameGraphNodeType>;
++ using BranchIdsAndTypes = QList<FGIdType>;
++
++ Q_DECLARE_METATYPE(QList<BranchIdsAndTypes>)
++
++ class tst_FrameGraphVisitor : public QObject
++ {
++ Q_OBJECT
++ private Q_SLOTS:
++
++ void visitFGTree_data()
++ {
++ QTest::addColumn<Qt3DCore::QEntity *>("rootEntity");
++ QTest::addColumn<Qt3DRender::QFrameGraphNode *>("fgRoot");
++ QTest::addColumn<QList<BranchIdsAndTypes>>("fgNodeIdsPerBranch");
++
++ {
++ Qt3DCore::QEntity *entity = new Qt3DCore::QEntity();
++ Qt3DRender::QTechniqueFilter *techniqueFilter = new Qt3DRender::QTechniqueFilter(entity);
++
++ QTest::newRow("singleNode") << entity
++ << static_cast<Qt3DRender::QFrameGraphNode *>(techniqueFilter)
++ << (QList<BranchIdsAndTypes>()
++ << (BranchIdsAndTypes() << FGIdType(techniqueFilter->id(), Qt3DRender::Render::FrameGraphNode::TechniqueFilter))
++ );
++ }
++
++ {
++ Qt3DCore::QEntity *entity = new Qt3DCore::QEntity();
++ Qt3DRender::QTechniqueFilter *techniqueFilter = new Qt3DRender::QTechniqueFilter(entity);
++ Qt3DRender::QFrustumCulling *frustumCulling = new Qt3DRender::QFrustumCulling(techniqueFilter);
++ Qt3DRender::QNoDraw *noDraw = new Qt3DRender::QNoDraw(frustumCulling);
++
++ QTest::newRow("singleBranch") << entity
++ << static_cast<Qt3DRender::QFrameGraphNode *>(techniqueFilter)
++ << (QList<BranchIdsAndTypes>()
++ << (BranchIdsAndTypes()
++ << FGIdType(noDraw->id(), Qt3DRender::Render::FrameGraphNode::NoDraw)
++ << FGIdType(frustumCulling->id(), Qt3DRender::Render::FrameGraphNode::FrustumCulling)
++ << FGIdType(techniqueFilter->id(), Qt3DRender::Render::FrameGraphNode::TechniqueFilter)
++ )
++ );
++ }
++ {
++ Qt3DCore::QEntity *entity = new Qt3DCore::QEntity();
++ Qt3DRender::QTechniqueFilter *techniqueFilter = new Qt3DRender::QTechniqueFilter(entity);
++ Qt3DRender::QFrustumCulling *frustumCulling = new Qt3DRender::QFrustumCulling(techniqueFilter);
++ Qt3DRender::QNoDraw *noDraw = new Qt3DRender::QNoDraw(frustumCulling);
++ Qt3DRender::QViewport *viewPort = new Qt3DRender::QViewport(frustumCulling);
++
++ QTest::newRow("dualBranch") << entity
++ << static_cast<Qt3DRender::QFrameGraphNode *>(techniqueFilter)
++ << (QList<BranchIdsAndTypes>()
++ << (BranchIdsAndTypes()
++ << FGIdType(noDraw->id(), Qt3DRender::Render::FrameGraphNode::NoDraw)
++ << FGIdType(frustumCulling->id(), Qt3DRender::Render::FrameGraphNode::FrustumCulling)
++ << FGIdType(techniqueFilter->id(), Qt3DRender::Render::FrameGraphNode::TechniqueFilter)
++ )
++ << (BranchIdsAndTypes()
++ << FGIdType(viewPort->id(), Qt3DRender::Render::FrameGraphNode::Viewport)
++ << FGIdType(frustumCulling->id(), Qt3DRender::Render::FrameGraphNode::FrustumCulling)
++ << FGIdType(techniqueFilter->id(), Qt3DRender::Render::FrameGraphNode::TechniqueFilter)
++ )
++ );
++ }
++
++ }
++
++ void visitFGTree()
++ {
++ // GIVEN
++ QFETCH(Qt3DCore::QEntity *, rootEntity);
++ QFETCH(Qt3DRender::QFrameGraphNode *, fgRoot);
++ QFETCH(QList<BranchIdsAndTypes>, fgNodeIdsPerBranch);
++ QScopedPointer<Qt3DRender::TestAspect> aspect(new Qt3DRender::TestAspect(rootEntity));
++
++ // THEN
++ Qt3DRender::Render::FrameGraphManager *fgManager = aspect->nodeManagers()->frameGraphManager();
++ Qt3DRender::Render::FrameGraphNode *backendFGRoot = fgManager->lookupNode(fgRoot->id());
++ QVERIFY(backendFGRoot != nullptr);
++
++
++ // WHEN
++ Qt3DRender::Render::FrameGraphVisitor visitor(fgManager);
++ const std::vector<Qt3DRender::Render::FrameGraphNode *> fgNodes = visitor.traverse(backendFGRoot);
++
++ // THEN
++ QCOMPARE(size_t(fgNodeIdsPerBranch.size()), fgNodes.size());
++
++ for (int i = 0; i < fgNodeIdsPerBranch.size(); ++i) {
++ const BranchIdsAndTypes brandIdsAndTypes = fgNodeIdsPerBranch.at(i);
++
++ Qt3DRender::Render::FrameGraphNode *fgNode = fgNodes.at(i);
++ for (int j = 0; j < brandIdsAndTypes.size(); ++j) {
++ const FGIdType idAndType = brandIdsAndTypes.at(j);
++ QVERIFY(fgNode != nullptr);
++ QCOMPARE(fgNode->peerId(), idAndType.first);
++ QCOMPARE(fgNode->nodeType(), idAndType.second);
++ fgNode = fgNode->parent();
++ }
++
++ QVERIFY(fgNode == nullptr);
++ }
++
++ delete rootEntity;
++ }
++ };
++
++ QTEST_MAIN(tst_FrameGraphVisitor)
++
++ #include "tst_framegraphvisitor.moc"