Add unit test for VSyncFrameAdvanceService

Change-Id: Ifbdec0345e59e9cde043611609ff383e352e1d3e
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

3 files changed, 99 insertions, 1 deletions

diff --git a/tests/auto/render/render.pro b/tests/auto/render/render.pro
index 5393ec79c..7c6ac474e 100644
--- a/tests/auto/render/render.pro
+++ b/tests/auto/render/render.pro
@@ -10,5 +10,6 @@ contains(QT_CONFIG, private_tests) {
         renderviewutils \
         renderviews \
         rendermaterial \
-        rendermesh
+        rendermesh \
+        vsyncframeadvanceservice
 }
diff --git a/tests/auto/render/vsyncframeadvanceservice/tst_vsyncframeadvanceservice.cpp b/tests/auto/render/vsyncframeadvanceservice/tst_vsyncframeadvanceservice.cpp
new file mode 100644
index 000000000..48b7a2c0e
--- /dev/null
+++ b/tests/auto/render/vsyncframeadvanceservice/tst_vsyncframeadvanceservice.cpp
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Paul Lemire
+** 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/QtTest>
+
+#include <Qt3DRenderer/private/vsyncframeadvanceservice_p.h>
+
+class FakeRenderThread Q_DECL_FINAL : public QThread
+{
+public:
+    FakeRenderThread(Qt3D::Render::VSyncFrameAdvanceService *tickService)
+        : m_tickService(tickService)
+    {
+    }
+
+    // QThread interface
+protected:
+    void run() Q_DECL_FINAL
+    {
+        QThread::msleep(1000);
+        m_tickService->proceedToNextFrame();
+    }
+
+private:
+    Qt3D::Render::VSyncFrameAdvanceService *m_tickService;
+};
+
+class tst_VSyncFrameAdvanceService : public QObject
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+
+    void checkSynchronisation()
+    {
+        // GIVEN
+        Qt3D::Render::VSyncFrameAdvanceService tickService;
+        FakeRenderThread renderThread(&tickService);
+        QElapsedTimer t;
+
+        // WHEN
+        t.start();
+        renderThread.start();
+        tickService.waitForNextFrame();
+
+        // THEN
+        QVERIFY(t.elapsed() >= 1000);
+    }
+
+};
+
+QTEST_MAIN(tst_VSyncFrameAdvanceService)
+
+#include "tst_vsyncframeadvanceservice.moc"
diff --git a/tests/auto/render/vsyncframeadvanceservice/vsyncframeadvanceservice.pro b/tests/auto/render/vsyncframeadvanceservice/vsyncframeadvanceservice.pro
new file mode 100644
index 000000000..25d8a70e5
--- /dev/null
+++ b/tests/auto/render/vsyncframeadvanceservice/vsyncframeadvanceservice.pro
@@ -0,0 +1,10 @@
+TEMPLATE = app
+
+TARGET = tst_vsyncframeadvanceservice
+
+QT += 3dcore 3dcore-private 3drenderer 3drenderer-private testlib
+
+CONFIG += testcase
+
+SOURCES += \
+    tst_vsyncframeadvanceservice.cpp