Add autotests for renderqmltotexture backend node

Change-Id: I68871b18238eb5aa3c9387e8b5130d848af3ae79
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

2 files changed, 162 insertions, 0 deletions

diff --git a/tests/auto/render/renderqmltotexture/renderqmltotexture.pro b/tests/auto/render/renderqmltotexture/renderqmltotexture.pro
new file mode 100644
index 000000000..2c0f56391
--- /dev/null
+++ b/tests/auto/render/renderqmltotexture/renderqmltotexture.pro
@@ -0,0 +1,12 @@
+TEMPLATE = app
+
+TARGET = tst_renderqmltotexture
+
+QT += 3dcore 3dcore-private 3drender 3drender-private testlib
+
+CONFIG += testcase
+
+SOURCES += tst_renderqmltotexture.cpp
+
+include(../../core/common/common.pri)
+include(../commons/commons.pri)
diff --git a/tests/auto/render/renderqmltotexture/tst_renderqmltotexture.cpp b/tests/auto/render/renderqmltotexture/tst_renderqmltotexture.cpp
new file mode 100644
index 000000000..b6148c514
--- /dev/null
+++ b/tests/auto/render/renderqmltotexture/tst_renderqmltotexture.cpp
@@ -0,0 +1,150 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** 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 <Qt3DRender/qrenderqmltotexture.h>
+#include <Qt3DRender/private/qrenderqmltotexture_p.h>
+#include <Qt3DRender/private/renderqmltotexture_p.h>
+#include <Qt3DCore/qpropertyupdatedchange.h>
+#include <qbackendnodetester.h>
+#include "testrenderer.h"
+
+class tst_RenderQmlToTexture : public Qt3DCore::QBackendNodeTester
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+
+    void checkInitialState()
+    {
+        // GIVEN
+        Qt3DRender::Render::RenderQmlToTexture backendRenderQmlToTexture;
+
+        // THEN
+        QCOMPARE(backendRenderQmlToTexture.isEnabled(), false);
+        QVERIFY(backendRenderQmlToTexture.peerId().isNull());
+        QCOMPARE(backendRenderQmlToTexture.m_context, nullptr);
+        QCOMPARE(backendRenderQmlToTexture.m_graphicsContext, nullptr);
+        QCOMPARE(backendRenderQmlToTexture.m_renderThread, nullptr);
+        QCOMPARE(backendRenderQmlToTexture.m_textureId, Qt3DCore::QNodeId());
+        QCOMPARE(backendRenderQmlToTexture.m_texture, nullptr);
+        QCOMPARE(backendRenderQmlToTexture.m_initialized, false);
+        QCOMPARE(backendRenderQmlToTexture.m_renderInitialized, false);
+        QCOMPARE(backendRenderQmlToTexture.m_renderOnce, false);
+    }
+
+    void checkInitializeFromPeer()
+    {
+        // GIVEN
+        Qt3DRender::QRenderQmlToTexture renderQmlToTexture;
+
+        {
+            // WHEN
+            Qt3DRender::Render::RenderQmlToTexture backendRenderQmlToTexture;
+            simulateInitialization(&renderQmlToTexture, &backendRenderQmlToTexture);
+
+            // THEN
+            QCOMPARE(backendRenderQmlToTexture.isEnabled(), true);
+            QCOMPARE(backendRenderQmlToTexture.peerId(), renderQmlToTexture.id());
+            QCOMPARE(backendRenderQmlToTexture.m_textureId, Qt3DCore::QNodeId());
+            QCOMPARE(backendRenderQmlToTexture.m_sharedObject.data(), nullptr);
+            QCOMPARE(backendRenderQmlToTexture.m_renderOnce, false);
+        }
+        {
+            // WHEN
+            Qt3DRender::Render::RenderQmlToTexture backendRenderQmlToTexture;
+            renderQmlToTexture.setEnabled(false);
+            simulateInitialization(&renderQmlToTexture, &backendRenderQmlToTexture);
+
+            // THEN
+            QCOMPARE(backendRenderQmlToTexture.peerId(), renderQmlToTexture.id());
+            QCOMPARE(backendRenderQmlToTexture.isEnabled(), false);
+        }
+    }
+
+    void checkSceneChangeEvents()
+    {
+        // GIVEN
+        Qt3DRender::Render::RenderQmlToTexture backendRenderQmlToTexture;
+        TestRenderer renderer;
+        QScopedPointer<Qt3DRender::QTexture2D> texture(new Qt3DRender::QTexture2D());
+        backendRenderQmlToTexture.setRenderer(&renderer);
+
+        {
+             // WHEN
+             const bool newValue = false;
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("enabled");
+             change->setValue(newValue);
+             backendRenderQmlToTexture.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendRenderQmlToTexture.isEnabled(), newValue);
+        }
+        {
+             // WHEN
+             const Qt3DCore::QNodeId newValue = texture.data()->id();
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("textureId");
+             change->setValue(QVariant::fromValue(newValue));
+             backendRenderQmlToTexture.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendRenderQmlToTexture.m_textureId, newValue);
+        }
+        {
+             // WHEN
+             const QSharedPointer<Qt3DRender::RenderQmlToTextureSharedObject> newValue
+                     = QSharedPointer<Qt3DRender::RenderQmlToTextureSharedObject>(new Qt3DRender::RenderQmlToTextureSharedObject(nullptr));
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("sharedObject");
+             change->setValue(QVariant::fromValue(newValue));
+             backendRenderQmlToTexture.sceneChangeEvent(change);
+
+             // THEN
+             QCOMPARE(backendRenderQmlToTexture.m_sharedObject, newValue);
+             QCOMPARE(backendRenderQmlToTexture.m_sharedObject.data(), newValue.data());
+        }
+        {
+             // WHEN
+             const bool newValue = true;
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("renderOnce");
+             change->setValue(QVariant::fromValue(newValue));
+             backendRenderQmlToTexture.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendRenderQmlToTexture.m_renderOnce, newValue);
+        }
+    }
+
+};
+
+QTEST_MAIN(tst_RenderQmlToTexture)
+
+#include "tst_renderqmltotexture.moc"