QRenderTargetOuput: add unit tests

Change-Id: I8a598a0edad751d3e92c7e6893f5761d5b553070
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

3 files changed, 421 insertions, 1 deletions

diff --git a/tests/auto/render/qrendertargetoutput/qrendertargetoutput.pro b/tests/auto/render/qrendertargetoutput/qrendertargetoutput.pro
new file mode 100644
index 000000000..e42f4fc22
--- /dev/null
+++ b/tests/auto/render/qrendertargetoutput/qrendertargetoutput.pro
@@ -0,0 +1,12 @@
+TEMPLATE = app
+
+TARGET = tst_qrendertargetoutput
+
+QT += 3dcore 3dcore-private 3drender 3drender-private testlib
+
+CONFIG += testcase
+
+SOURCES += tst_qrendertargetoutput.cpp
+
+include(../../core/common/common.pri)
+include(../commons/commons.pri)
diff --git a/tests/auto/render/qrendertargetoutput/tst_qrendertargetoutput.cpp b/tests/auto/render/qrendertargetoutput/tst_qrendertargetoutput.cpp
new file mode 100644
index 000000000..c847095dc
--- /dev/null
+++ b/tests/auto/render/qrendertargetoutput/tst_qrendertargetoutput.cpp
@@ -0,0 +1,407 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 Paul Lemire <paul.lemire350@gmail.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** 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 https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QTest>
+#include <QObject>
+#include <QMetaObject>
+#include <Qt3DRender/qrendertargetoutput.h>
+#include <Qt3DRender/private/qrendertargetoutput_p.h>
+#include <Qt3DRender/qabstracttexture.h>
+#include <Qt3DRender/qtexture.h>
+#include <QSignalSpy>
+#include <Qt3DCore/qpropertyupdatedchange.h>
+#include <Qt3DCore/private/qnodecreatedchangegenerator_p.h>
+#include <Qt3DCore/qnodecreatedchange.h>
+#include "testpostmanarbiter.h"
+
+class tst_QRenderTargetOutput : public QObject
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+
+    void initTestCase()
+    {
+        qRegisterMetaType<Qt3DRender::QRenderTargetOutput::AttachmentPoint>("AttachmentPoint");
+        qRegisterMetaType<Qt3DRender::QAbstractTexture::CubeMapFace>("QAbstractTexture::CubeMapFace");
+    }
+
+    void checkDefaultConstruction()
+    {
+        // GIVEN
+        Qt3DRender::QRenderTargetOutput renderTargetOutput;
+
+        // THEN
+        QCOMPARE(renderTargetOutput.attachmentPoint(), Qt3DRender::QRenderTargetOutput::Color0);
+        QVERIFY(renderTargetOutput.texture() == nullptr);
+        QCOMPARE(renderTargetOutput.mipLevel(), 0);
+        QCOMPARE(renderTargetOutput.layer(), 0);
+        QCOMPARE(renderTargetOutput.face(), Qt3DRender::QAbstractTexture::CubeMapNegativeX);
+    }
+
+    void checkPropertyChanges()
+    {
+        // GIVEN
+        Qt3DRender::QRenderTargetOutput renderTargetOutput;
+
+        {
+            // WHEN
+            QSignalSpy spy(&renderTargetOutput, SIGNAL(attachmentPointChanged(AttachmentPoint)));
+            const Qt3DRender::QRenderTargetOutput::AttachmentPoint newValue = Qt3DRender::QRenderTargetOutput::Color15;
+            renderTargetOutput.setAttachmentPoint(newValue);
+
+            // THEN
+            QVERIFY(spy.isValid());
+            QCOMPARE(renderTargetOutput.attachmentPoint(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            renderTargetOutput.setAttachmentPoint(newValue);
+
+            // THEN
+            QCOMPARE(renderTargetOutput.attachmentPoint(), newValue);
+            QCOMPARE(spy.count(), 0);
+
+        }
+        {
+            // WHEN
+            QSignalSpy spy(&renderTargetOutput, SIGNAL(textureChanged(QAbstractTexture *)));
+            Qt3DRender::QTexture3D newValue;
+            renderTargetOutput.setTexture(&newValue);
+
+            // THEN
+            QVERIFY(spy.isValid());
+            QCOMPARE(renderTargetOutput.texture(), &newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            renderTargetOutput.setTexture(&newValue);
+
+            // THEN
+            QCOMPARE(renderTargetOutput.texture(), &newValue);
+            QCOMPARE(spy.count(), 0);
+
+        }
+        {
+            // WHEN
+            QSignalSpy spy(&renderTargetOutput, SIGNAL(mipLevelChanged(int)));
+            const int newValue = 5;
+            renderTargetOutput.setMipLevel(newValue);
+
+            // THEN
+            QVERIFY(spy.isValid());
+            QCOMPARE(renderTargetOutput.mipLevel(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            renderTargetOutput.setMipLevel(newValue);
+
+            // THEN
+            QCOMPARE(renderTargetOutput.mipLevel(), newValue);
+            QCOMPARE(spy.count(), 0);
+
+        }
+        {
+            // WHEN
+            QSignalSpy spy(&renderTargetOutput, SIGNAL(layerChanged(int)));
+            const int newValue = 300;
+            renderTargetOutput.setLayer(newValue);
+
+            // THEN
+            QVERIFY(spy.isValid());
+            QCOMPARE(renderTargetOutput.layer(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            renderTargetOutput.setLayer(newValue);
+
+            // THEN
+            QCOMPARE(renderTargetOutput.layer(), newValue);
+            QCOMPARE(spy.count(), 0);
+
+        }
+        {
+            // WHEN
+            QSignalSpy spy(&renderTargetOutput, SIGNAL(faceChanged(QAbstractTexture::CubeMapFace)));
+            const Qt3DRender::QAbstractTexture::CubeMapFace newValue = Qt3DRender::QAbstractTexture::CubeMapNegativeZ;
+            renderTargetOutput.setFace(newValue);
+
+            // THEN
+            QVERIFY(spy.isValid());
+            QCOMPARE(renderTargetOutput.face(), newValue);
+            QCOMPARE(spy.count(), 1);
+
+            // WHEN
+            spy.clear();
+            renderTargetOutput.setFace(newValue);
+
+            // THEN
+            QCOMPARE(renderTargetOutput.face(), newValue);
+            QCOMPARE(spy.count(), 0);
+
+        }
+    }
+
+    void checkCreationData()
+    {
+        // GIVEN
+        Qt3DRender::QRenderTargetOutput renderTargetOutput;
+
+        renderTargetOutput.setAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color5);
+        renderTargetOutput.setMipLevel(10);
+        renderTargetOutput.setLayer(2);
+        renderTargetOutput.setFace(Qt3DRender::QAbstractTexture::CubeMapNegativeY);
+
+        // WHEN
+        QVector<Qt3DCore::QNodeCreatedChangeBasePtr> creationChanges;
+
+        {
+            Qt3DCore::QNodeCreatedChangeGenerator creationChangeGenerator(&renderTargetOutput);
+            creationChanges = creationChangeGenerator.creationChanges();
+        }
+
+        // THEN
+        {
+            QCOMPARE(creationChanges.size(), 1);
+
+            const auto creationChangeData = qSharedPointerCast<Qt3DCore::QNodeCreatedChange<Qt3DRender::QRenderTargetOutputData>>(creationChanges.first());
+            const Qt3DRender::QRenderTargetOutputData cloneData = creationChangeData->data;
+
+            QCOMPARE(renderTargetOutput.attachmentPoint(), cloneData.attachmentPoint);
+            QCOMPARE(Qt3DCore::QNodeId(), cloneData.textureId);
+            QCOMPARE(renderTargetOutput.mipLevel(), cloneData.mipLevel);
+            QCOMPARE(renderTargetOutput.layer(), cloneData.layer);
+            QCOMPARE(renderTargetOutput.face(), cloneData.face);
+            QCOMPARE(renderTargetOutput.id(), creationChangeData->subjectId());
+            QCOMPARE(renderTargetOutput.isEnabled(), true);
+            QCOMPARE(renderTargetOutput.isEnabled(), creationChangeData->isNodeEnabled());
+            QCOMPARE(renderTargetOutput.metaObject(), creationChangeData->metaObject());
+        }
+
+        // WHEN
+        renderTargetOutput.setEnabled(false);
+
+        {
+            Qt3DCore::QNodeCreatedChangeGenerator creationChangeGenerator(&renderTargetOutput);
+            creationChanges = creationChangeGenerator.creationChanges();
+        }
+
+        // THEN
+        {
+            QCOMPARE(creationChanges.size(), 1);
+
+            const auto creationChangeData = qSharedPointerCast<Qt3DCore::QNodeCreatedChange<Qt3DRender::QRenderTargetOutputData>>(creationChanges.first());
+            const Qt3DRender::QRenderTargetOutputData cloneData = creationChangeData->data;
+
+            QCOMPARE(renderTargetOutput.attachmentPoint(), cloneData.attachmentPoint);
+            QCOMPARE(Qt3DCore::QNodeId(), cloneData.textureId);
+            QCOMPARE(renderTargetOutput.mipLevel(), cloneData.mipLevel);
+            QCOMPARE(renderTargetOutput.layer(), cloneData.layer);
+            QCOMPARE(renderTargetOutput.face(), cloneData.face);
+            QCOMPARE(renderTargetOutput.id(), creationChangeData->subjectId());
+            QCOMPARE(renderTargetOutput.isEnabled(), false);
+            QCOMPARE(renderTargetOutput.isEnabled(), creationChangeData->isNodeEnabled());
+            QCOMPARE(renderTargetOutput.metaObject(), creationChangeData->metaObject());
+        }
+    }
+
+    void checkAttachmentPointUpdate()
+    {
+        // GIVEN
+        TestArbiter arbiter;
+        Qt3DRender::QRenderTargetOutput renderTargetOutput;
+        arbiter.setArbiterOnNode(&renderTargetOutput);
+
+        {
+            // WHEN
+            renderTargetOutput.setAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color1);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 1);
+            auto change = arbiter.events.first().staticCast<Qt3DCore::QPropertyUpdatedChange>();
+            QCOMPARE(change->propertyName(), "attachmentPoint");
+            QCOMPARE(change->value().value<Qt3DRender::QRenderTargetOutput::AttachmentPoint>(), renderTargetOutput.attachmentPoint());
+            QCOMPARE(change->type(), Qt3DCore::PropertyUpdated);
+
+            arbiter.events.clear();
+        }
+
+        {
+            // WHEN
+            renderTargetOutput.setAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color1);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 0);
+        }
+
+    }
+
+    void checkTextureUpdate()
+    {
+        // GIVEN
+        TestArbiter arbiter;
+        Qt3DRender::QRenderTargetOutput renderTargetOutput;
+        Qt3DRender::QTexture3D texture;
+        arbiter.setArbiterOnNode(&renderTargetOutput);
+
+        {
+            // WHEN
+            renderTargetOutput.setTexture(&texture);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 1);
+            auto change = arbiter.events.first().staticCast<Qt3DCore::QPropertyUpdatedChange>();
+            QCOMPARE(change->propertyName(), "texture");
+            QCOMPARE(change->value().value<Qt3DCore::QNodeId>(), renderTargetOutput.texture()->id());
+            QCOMPARE(change->type(), Qt3DCore::PropertyUpdated);
+
+            arbiter.events.clear();
+        }
+
+        {
+            // WHEN
+            renderTargetOutput.setTexture(&texture);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 0);
+        }
+
+    }
+
+    void checkMipLevelUpdate()
+    {
+        // GIVEN
+        TestArbiter arbiter;
+        Qt3DRender::QRenderTargetOutput renderTargetOutput;
+        arbiter.setArbiterOnNode(&renderTargetOutput);
+
+        {
+            // WHEN
+            renderTargetOutput.setMipLevel(6);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 1);
+            auto change = arbiter.events.first().staticCast<Qt3DCore::QPropertyUpdatedChange>();
+            QCOMPARE(change->propertyName(), "mipLevel");
+            QCOMPARE(change->value().value<int>(), renderTargetOutput.mipLevel());
+            QCOMPARE(change->type(), Qt3DCore::PropertyUpdated);
+
+            arbiter.events.clear();
+        }
+
+        {
+            // WHEN
+            renderTargetOutput.setMipLevel(6);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 0);
+        }
+
+    }
+
+    void checkLayerUpdate()
+    {
+        // GIVEN
+        TestArbiter arbiter;
+        Qt3DRender::QRenderTargetOutput renderTargetOutput;
+        arbiter.setArbiterOnNode(&renderTargetOutput);
+
+        {
+            // WHEN
+            renderTargetOutput.setLayer(8);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 1);
+            auto change = arbiter.events.first().staticCast<Qt3DCore::QPropertyUpdatedChange>();
+            QCOMPARE(change->propertyName(), "layer");
+            QCOMPARE(change->value().value<int>(), renderTargetOutput.layer());
+            QCOMPARE(change->type(), Qt3DCore::PropertyUpdated);
+
+            arbiter.events.clear();
+        }
+
+        {
+            // WHEN
+            renderTargetOutput.setLayer(8);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 0);
+        }
+
+    }
+
+    void checkFaceUpdate()
+    {
+        // GIVEN
+        TestArbiter arbiter;
+        Qt3DRender::QRenderTargetOutput renderTargetOutput;
+        arbiter.setArbiterOnNode(&renderTargetOutput);
+
+        {
+            // WHEN
+            renderTargetOutput.setFace(Qt3DRender::QAbstractTexture::CubeMapPositiveY);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 1);
+            auto change = arbiter.events.first().staticCast<Qt3DCore::QPropertyUpdatedChange>();
+            QCOMPARE(change->propertyName(), "face");
+            QCOMPARE(change->value().value<Qt3DRender::QAbstractTexture::CubeMapFace>(), renderTargetOutput.face());
+            QCOMPARE(change->type(), Qt3DCore::PropertyUpdated);
+
+            arbiter.events.clear();
+        }
+
+        {
+            // WHEN
+            renderTargetOutput.setFace(Qt3DRender::QAbstractTexture::CubeMapPositiveY);
+            QCoreApplication::processEvents();
+
+            // THEN
+            QCOMPARE(arbiter.events.size(), 0);
+        }
+
+    }
+
+};
+
+QTEST_MAIN(tst_QRenderTargetOutput)
+
+#include "tst_qrendertargetoutput.moc"
diff --git a/tests/auto/render/render.pro b/tests/auto/render/render.pro
index 14cee3c04..52270083b 100644
--- a/tests/auto/render/render.pro
+++ b/tests/auto/render/render.pro
@@ -54,5 +54,6 @@ contains(QT_CONFIG, private_tests) {
         sortpolicy \
         qcuboidgeometry \
         sceneloader \
-        qsceneloader
+        qsceneloader \
+        qrendertargetoutput
 }