Unit Tests for QClearBuffer

Change-Id: Ic34732a61a22a3eb3377b367b6c398ca9d07ff9e
Reviewed-by: Andy Nichols <andy.nichols@theqtcompany.com>

3 files changed, 165 insertions, 1 deletions

diff --git a/tests/auto/render/qclearbuffer/qclearbuffer.pro b/tests/auto/render/qclearbuffer/qclearbuffer.pro
new file mode 100644
index 000000000..0e33f3a32
--- /dev/null
+++ b/tests/auto/render/qclearbuffer/qclearbuffer.pro
@@ -0,0 +1,11 @@
+TEMPLATE = app
+
+TARGET = tst_qclearbuffer
+
+QT += core-private 3dcore 3dcore-private 3drenderer 3drenderer-private testlib
+
+CONFIG += testcase
+
+SOURCES += tst_qclearbuffer.cpp
+
+include(../commons/commons.pri)
diff --git a/tests/auto/render/qclearbuffer/tst_qclearbuffer.cpp b/tests/auto/render/qclearbuffer/tst_qclearbuffer.cpp
new file mode 100644
index 000000000..1e8876b9c
--- /dev/null
+++ b/tests/auto/render/qclearbuffer/tst_qclearbuffer.cpp
@@ -0,0 +1,152 @@
+/****************************************************************************
+**
+** 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 <Qt3DRenderer/qclearbuffer.h>
+
+#include "testpostmanarbiter.h"
+
+// We need to call QNode::clone which is protected
+// So we sublcass QNode instead of QObject
+class tst_QClearBuffer: public Qt3DCore::QNode
+{
+    Q_OBJECT
+public:
+    ~tst_QClearBuffer()
+    {
+        QNode::cleanup();
+    }
+
+private Q_SLOTS:
+
+    void checkCloning_data()
+    {
+        QTest::addColumn<Qt3DRender::QClearBuffer *>("clearBuffer");
+        QTest::addColumn<Qt3DRender::QClearBuffer::BufferType>("bufferType");
+
+        Qt3DRender::QClearBuffer *defaultConstructed = new Qt3DRender::QClearBuffer();
+        QTest::newRow("defaultConstructed") << defaultConstructed << Qt3DRender::QClearBuffer::None;
+
+        Qt3DRender::QClearBuffer *allBuffers = new Qt3DRender::QClearBuffer();
+        allBuffers->setBuffers(Qt3DRender::QClearBuffer::AllBuffers);
+        QTest::newRow("allBuffers") << allBuffers << Qt3DRender::QClearBuffer::AllBuffers;
+
+        Qt3DRender::QClearBuffer *depthBuffer = new Qt3DRender::QClearBuffer();
+        depthBuffer->setBuffers(Qt3DRender::QClearBuffer::DepthBuffer);
+        QTest::newRow("depthBuffer") << depthBuffer << Qt3DRender::QClearBuffer::DepthBuffer;
+
+        Qt3DRender::QClearBuffer *colorDepthBuffer = new Qt3DRender::QClearBuffer();
+        colorDepthBuffer->setBuffers(Qt3DRender::QClearBuffer::ColorDepthBuffer);
+        QTest::newRow("colorDepthBuffer") << colorDepthBuffer << Qt3DRender::QClearBuffer::ColorDepthBuffer;
+    }
+
+    void checkCloning()
+    {
+        // GIVEN
+        QFETCH(Qt3DRender::QClearBuffer *, clearBuffer);
+        QFETCH(Qt3DRender::QClearBuffer::BufferType, bufferType);
+
+        // THEN
+        QCOMPARE(clearBuffer->buffers(), bufferType);
+
+        // WHEN
+        Qt3DRender::QClearBuffer *clone = static_cast<Qt3DRender::QClearBuffer *>(QNode::clone(clearBuffer));
+
+        // THEN
+        QVERIFY(clone != Q_NULLPTR);
+        QCOMPARE(clearBuffer->id(), clone->id());
+        QCOMPARE(clearBuffer->buffers(), clone->buffers());
+
+        delete clearBuffer;
+        delete clone;
+    }
+
+    void checkPropertyUpdates()
+    {
+        // GIVEN
+        QScopedPointer<Qt3DRender::QClearBuffer> clearBuffer(new Qt3DRender::QClearBuffer());
+        TestArbiter arbiter(clearBuffer.data());
+
+        // WHEN
+        clearBuffer->setBuffers(Qt3DRender::QClearBuffer::AllBuffers);
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 1);
+        Qt3DCore::QScenePropertyChangePtr change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
+        QCOMPARE(change->propertyName(), "buffers");
+        QCOMPARE(change->subjectId(), clearBuffer->id());
+        QCOMPARE(change->value().value<Qt3DRender::QClearBuffer::BufferType>(), Qt3DRender::QClearBuffer::AllBuffers);
+        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);
+
+        arbiter.events.clear();
+
+        // WHEN
+        clearBuffer->setBuffers(Qt3DRender::QClearBuffer::AllBuffers);
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 0);
+
+        // WHEN
+        clearBuffer->setBuffers(Qt3DRender::QClearBuffer::ColorDepthBuffer);
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 1);
+        change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
+        QCOMPARE(change->propertyName(), "buffers");
+        QCOMPARE(change->subjectId(), clearBuffer->id());
+        QCOMPARE(change->value().value<Qt3DRender::QClearBuffer::BufferType>(), Qt3DRender::QClearBuffer::ColorDepthBuffer);
+        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);
+
+        arbiter.events.clear();
+    }
+
+protected:
+    Qt3DCore::QNode *doClone() const Q_DECL_OVERRIDE
+    {
+        return Q_NULLPTR;
+    }
+
+};
+
+QTEST_MAIN(tst_QClearBuffer)
+
+#include "tst_qclearbuffer.moc"
diff --git a/tests/auto/render/render.pro b/tests/auto/render/render.pro
index 82b243b91..1e5da0cd7 100644
--- a/tests/auto/render/render.pro
+++ b/tests/auto/render/render.pro
@@ -22,5 +22,6 @@ contains(QT_CONFIG, private_tests) {
         geometry \
         geometryrenderer \
         raycasting \
-        qcameraselector
+        qcameraselector \
+        qclearbuffer
 }