Unit tests for RenderMesh

Set enabled to true by default on a RenderMesh

Change-Id: I269505ab74f05fa81dae5eceef4c0afe24f10031
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

5 files changed, 193 insertions, 2 deletions

diff --git a/src/render/backend/rendermesh.cpp b/src/render/backend/rendermesh.cpp
index 1fcd65dd4..839de8853 100644
--- a/src/render/backend/rendermesh.cpp
+++ b/src/render/backend/rendermesh.cpp
@@ -57,6 +57,7 @@ namespace Render {
 
 /*!
  * \class RenderMesh
+ * \internal
  *
  * Monitor a frontend Mesh for source changes. If the source is changed,
  * the QMeshData returned is either a valid QMeshData corresponding to the source
@@ -70,6 +71,7 @@ RenderMesh::RenderMesh()
     : QBackendNode()
     , m_meshDirty(true)
     , m_meshDataManager(Q_NULLPTR)
+    , m_enabled(true)
 {
 }
 
@@ -109,6 +111,7 @@ void RenderMesh::sceneChangeEvent(const QSceneChangePtr &e)
 
 QMeshData *RenderMesh::meshData() const
 {
+    Q_ASSERT(m_meshDataManager);
     return m_meshDataManager->data(m_meshDataHandle);
 }
 
diff --git a/src/render/backend/rendermesh_p.h b/src/render/backend/rendermesh_p.h
index 0a7f5e1fc..600c141a8 100644
--- a/src/render/backend/rendermesh_p.h
+++ b/src/render/backend/rendermesh_p.h
@@ -62,7 +62,7 @@ class RenderEntity;
 class RenderMaterial;
 class RenderTechnique;
 
-class RenderMesh : public QBackendNode
+class Q_AUTOTEST_EXPORT RenderMesh : public QBackendNode
 {
 public:
     RenderMesh();
diff --git a/tests/auto/render/render.pro b/tests/auto/render/render.pro
index 62583bbb7..5393ec79c 100644
--- a/tests/auto/render/render.pro
+++ b/tests/auto/render/render.pro
@@ -9,5 +9,6 @@ contains(QT_CONFIG, private_tests) {
         rendershader \
         renderviewutils \
         renderviews \
-        rendermaterial
+        rendermaterial \
+        rendermesh
 }
diff --git a/tests/auto/render/rendermesh/rendermesh.pro b/tests/auto/render/rendermesh/rendermesh.pro
new file mode 100644
index 000000000..c654f0dfa
--- /dev/null
+++ b/tests/auto/render/rendermesh/rendermesh.pro
@@ -0,0 +1,9 @@
+TEMPLATE = app
+
+TARGET = tst_rendermesh
+
+QT += 3dcore 3dcore-private 3drenderer 3drenderer-private testlib
+
+CONFIG += testcase
+
+SOURCES += tst_rendermesh.cpp
diff --git a/tests/auto/render/rendermesh/tst_rendermesh.cpp b/tests/auto/render/rendermesh/tst_rendermesh.cpp
new file mode 100644
index 000000000..e79b95371
--- /dev/null
+++ b/tests/auto/render/rendermesh/tst_rendermesh.cpp
@@ -0,0 +1,178 @@
+/****************************************************************************
+**
+** 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 <Qt3DRenderer/private/meshdatamanager_p.h>
+#include <Qt3DRenderer/private/rendermesh_p.h>
+#include <Qt3DRenderer/QAbstractMesh>
+#include <Qt3DRenderer/QAbstractMeshFunctor>
+#include <Qt3DRenderer/QCylinderMesh>
+#include <Qt3DRenderer/QPlaneMesh>
+#include <Qt3DRenderer/QCuboidMesh>
+#include <Qt3DRenderer/QSphereMesh>
+#include <Qt3DRenderer/QTorusMesh>
+#include <Qt3DRenderer/QMesh>
+#include <Qt3DCore/QScenePropertyChange>
+
+
+using namespace Qt3D;
+using namespace Qt3D::Render;
+
+class tst_RenderMesh : public QObject
+{
+    Q_OBJECT
+public:
+    tst_RenderMesh() {}
+
+private slots:
+    void shouldHaveInitialState();
+    void shouldHavePropertiesMirroringFromItsPeer_data();
+    void shouldHavePropertiesMirroringFromItsPeer();
+    void shouldHandleMeshFunctorPropertyChange();
+    void shouldHandleEnablePropertyChange();
+};
+
+
+void tst_RenderMesh::shouldHaveInitialState()
+{
+    // GIVEN
+    RenderMesh backend;
+
+    // THEN
+    QVERIFY(backend.meshFunctor().isNull());
+    QVERIFY(backend.isEnabled());
+}
+
+void tst_RenderMesh::shouldHavePropertiesMirroringFromItsPeer_data()
+{
+    QTest::addColumn<QAbstractMesh *>("frontendMesh");
+
+    QTest::newRow("planeMesh") << (QAbstractMesh *)new QPlaneMesh();
+    QTest::newRow("cuboidMesh") << (QAbstractMesh *)new QCuboidMesh();
+    QTest::newRow("sphereMesh") << (QAbstractMesh *)new QSphereMesh();
+    QTest::newRow("torusMesh") << (QAbstractMesh *)new QTorusMesh();
+    QTest::newRow("cylinderMesh") << (QAbstractMesh *)new QCylinderMesh();
+    QTest::newRow("mesh") << (QAbstractMesh *)new QMesh();
+}
+
+void tst_RenderMesh::shouldHavePropertiesMirroringFromItsPeer()
+{
+    // GIVEN
+    QFETCH(QAbstractMesh *, frontendMesh);
+    RenderMesh backend;
+    QScopedPointer<MeshDataManager> manager(new MeshDataManager());
+    backend.setMeshDataManager(manager.data());
+
+    // WHEN
+    backend.setPeer(frontendMesh);
+
+    // THEN
+    QVERIFY(backend.isEnabled() == frontendMesh->isEnabled());
+    QVERIFY(backend.meshFunctor());
+    QVERIFY(*backend.meshFunctor() == *frontendMesh->meshFunctor());
+
+    delete frontendMesh;
+}
+
+void tst_RenderMesh::shouldHandleMeshFunctorPropertyChange()
+{
+    // GIVEN
+    RenderMesh backend;
+    QScopedPointer<MeshDataManager> manager(new MeshDataManager());
+    backend.setMeshDataManager(manager.data());
+
+    QScopedPointer<QPlaneMesh> planeMesh(new QPlaneMesh());
+    QScopedPointer<QSphereMesh> sphereMesh(new QSphereMesh());
+    QAbstractMeshFunctorPtr meshFunctor(planeMesh->meshFunctor());
+
+    // THEN
+    QVERIFY(backend.meshFunctor() != meshFunctor);
+
+    // WHEN
+    QScenePropertyChangePtr updateChange(new QScenePropertyChange(NodeUpdated, QSceneChange::Node, QNodeId()));
+
+    updateChange->setValue(QVariant::fromValue(meshFunctor));
+    updateChange->setPropertyName("meshFunctor");
+    backend.sceneChangeEvent(updateChange);
+
+    // THEN
+    QVERIFY(backend.meshFunctor() == meshFunctor);
+
+    // GIVEN
+    meshFunctor = sphereMesh->meshFunctor();
+
+    // THEN
+    QVERIFY(backend.meshFunctor() != meshFunctor);
+
+    // WHEN
+    QScenePropertyChangePtr secondUpdateChange(new QScenePropertyChange(NodeUpdated, QSceneChange::Node, QNodeId()));
+    secondUpdateChange->setValue(QVariant::fromValue(meshFunctor));
+    secondUpdateChange->setPropertyName("meshFunctor");
+    backend.sceneChangeEvent(secondUpdateChange);
+
+    // THEN
+    QVERIFY(backend.meshFunctor() == meshFunctor);
+}
+
+void tst_RenderMesh::shouldHandleEnablePropertyChange()
+{
+    // GIVEN
+    RenderMesh backend;
+    QScopedPointer<MeshDataManager> manager(new MeshDataManager());
+    backend.setMeshDataManager(manager.data());
+
+    // WHEN
+    QScenePropertyChangePtr updateChange(new QScenePropertyChange(NodeUpdated, QSceneChange::Node, QNodeId()));
+    updateChange->setValue(false);
+    updateChange->setPropertyName("enabled");
+    backend.sceneChangeEvent(updateChange);
+
+    // THEN
+    QVERIFY(!backend.isEnabled());
+
+    // WHEN
+    QScenePropertyChangePtr secondUpdateChange(new QScenePropertyChange(NodeUpdated, QSceneChange::Node, QNodeId()));
+    secondUpdateChange->setValue(true);
+    secondUpdateChange->setPropertyName("enabled");
+    backend.sceneChangeEvent(secondUpdateChange);
+
+    // THEN
+    QVERIFY(backend.isEnabled());
+}
+
+QTEST_MAIN(tst_RenderMesh)
+
+#include "tst_rendermesh.moc"