Unit Tests for QViewport

Change-Id: I566876221173eca3a52ed67404d80b7376f39f71
Reviewed-by: Andy Nichols <andy.nichols@theqtcompany.com>

3 files changed, 197 insertions, 1 deletions

diff --git a/tests/auto/render/qviewport/qviewport.pro b/tests/auto/render/qviewport/qviewport.pro
new file mode 100644
index 000000000..49b3ffb84
--- /dev/null
+++ b/tests/auto/render/qviewport/qviewport.pro
@@ -0,0 +1,11 @@
+TEMPLATE = app
+
+TARGET = tst_qviewport
+
+QT += core-private 3dcore 3dcore-private 3drenderer 3drenderer-private testlib
+
+CONFIG += testcase
+
+SOURCES += tst_qviewport.cpp
+
+include(../commons/commons.pri)
diff --git a/tests/auto/render/qviewport/tst_qviewport.cpp b/tests/auto/render/qviewport/tst_qviewport.cpp
new file mode 100644
index 000000000..1d03ce67c
--- /dev/null
+++ b/tests/auto/render/qviewport/tst_qviewport.cpp
@@ -0,0 +1,184 @@
+/****************************************************************************
+**
+** 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/qviewport.h>
+
+#include "testpostmanarbiter.h"
+
+// We need to call QNode::clone which is protected
+// So we sublcass QNode instead of QObject
+class tst_QViewport: public Qt3DCore::QNode
+{
+    Q_OBJECT
+public:
+    ~tst_QViewport()
+    {
+        QNode::cleanup();
+    }
+
+private Q_SLOTS:
+
+    void checkCloning_data()
+    {
+        QTest::addColumn<Qt3DRender::QViewport *>("viewport");
+        QTest::addColumn<QRectF>("rect");
+        QTest::addColumn<QColor>("color");
+
+        Qt3DRender::QViewport *defaultConstructed = new Qt3DRender::QViewport();
+        QTest::newRow("defaultConstructed") << defaultConstructed << QRectF(0.0f, 0.0f, 1.0f, 1.0f) << QColor();
+
+        Qt3DRender::QViewport *smallGreenViewport = new Qt3DRender::QViewport();
+        smallGreenViewport->setRect(QRectF(0.2f, 0.2f, 0.6f, 0.6f));
+        smallGreenViewport->setClearColor(QColor(Qt::green));
+        QTest::newRow("smallGreenViewport") << smallGreenViewport << QRectF(0.2f, 0.2f, 0.6f, 0.6f) << QColor(Qt::green);
+
+    }
+
+    void checkCloning()
+    {
+        // GIVEN
+        QFETCH(Qt3DRender::QViewport *, viewport);
+        QFETCH(QRectF, rect);
+        QFETCH(QColor, color);
+
+        // THEN
+        QCOMPARE(viewport->rect(), rect);
+        QCOMPARE(viewport->clearColor(), color);
+
+        // WHEN
+        Qt3DRender::QViewport *clone = static_cast<Qt3DRender::QViewport *>(QNode::clone(viewport));
+
+        // THEN
+        QVERIFY(clone != Q_NULLPTR);
+        QCOMPARE(viewport->id(), clone->id());
+        QCOMPARE(viewport->rect(), clone->rect());
+        QCOMPARE(viewport->clearColor(), clone->clearColor());
+
+        delete viewport;
+        delete clone;
+    }
+
+    void checkPropertyUpdates()
+    {
+        // GIVEN
+        QScopedPointer<Qt3DRender::QViewport> viewport(new Qt3DRender::QViewport());
+        TestArbiter arbiter(viewport.data());
+
+        // WHEN
+        viewport->setClearColor(Qt::red);
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 1);
+        Qt3DCore::QScenePropertyChangePtr change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
+        QCOMPARE(change->propertyName(), "clearColor");
+        QCOMPARE(change->subjectId(), viewport->id());
+        QCOMPARE(change->value().value<QColor>(), QColor(Qt::red));
+        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);
+
+        arbiter.events.clear();
+
+        // WHEN
+        viewport->setClearColor(Qt::red);
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 0);
+
+        // WHEN
+        viewport->setClearColor(Qt::blue);
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 1);
+        change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
+        QCOMPARE(change->propertyName(), "clearColor");
+        QCOMPARE(change->subjectId(), viewport->id());
+        QCOMPARE(change->value().value<QColor>(), QColor(Qt::blue));
+        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);
+
+        arbiter.events.clear();
+
+        // WHEN
+        viewport->setRect(QRectF(0.5f, 0.5f, 1.0f, 1.0f));
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 1);
+        change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
+        QCOMPARE(change->propertyName(), "rect");
+        QCOMPARE(change->subjectId(), viewport->id());
+        QCOMPARE(change->value().value<QRectF>(), QRectF(0.5f, 0.5f, 1.0f, 1.0f));
+        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);
+
+        arbiter.events.clear();
+
+        // WHEN
+        viewport->setRect(QRectF(0.5f, 0.5f, 1.0f, 1.0f));
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 0);
+
+        // WHEN
+        viewport->setRect(QRectF(0.0f, 0.0f, 1.0f, 1.0f));
+        QCoreApplication::processEvents();
+
+        // THEN
+        QCOMPARE(arbiter.events.size(), 1);
+        change = arbiter.events.first().staticCast<Qt3DCore::QScenePropertyChange>();
+        QCOMPARE(change->propertyName(), "rect");
+        QCOMPARE(change->subjectId(), viewport->id());
+        QCOMPARE(change->value().value<QRectF>(), QRectF(0.0f, 0.0f, 1.0f, 1.0f));
+        QCOMPARE(change->type(), Qt3DCore::NodeUpdated);
+
+    }
+
+protected:
+    Qt3DCore::QNode *doClone() const Q_DECL_OVERRIDE
+    {
+        return Q_NULLPTR;
+    }
+
+};
+
+QTEST_MAIN(tst_QViewport)
+
+#include "tst_qviewport.moc"
diff --git a/tests/auto/render/render.pro b/tests/auto/render/render.pro
index 2770a8e99..688537869 100644
--- a/tests/auto/render/render.pro
+++ b/tests/auto/render/render.pro
@@ -32,5 +32,6 @@ contains(QT_CONFIG, private_tests) {
         qsortcriterion \
         qsortmethod \
         qstateset \
-        qtechniquefilter
+        qtechniquefilter \
+        qviewport
 }