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diff --git a/tests/auto/declarative/qdeclarativedebughelper/tst_qdeclarativedebughelper.cpp b/tests/auto/declarative/qdeclarativedebughelper/tst_qdeclarativedebughelper.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <qtest.h>
+
+#include <QDeclarativeEngine>
+#include <private/qdeclarativeengine_p.h>
+#include <QAbstractAnimation>
+#include <private/qabstractanimation_p.h>
+
+// We have copied the header which is used in the qmljsdebugger (part of QtCreator)
+// to catch BC changes. Don't update it unless you know what you are doing!
+#include "private_headers/qdeclarativedebughelper_p.h"
+
+class tst_qdeclarativedebughelper : public QObject {
+    Q_OBJECT
+private slots:
+    void getScriptEngine();
+    void setAnimationSlowDownFactor();
+    void enableDebugging();
+};
+
+class TestAnimation : public QAbstractAnimation {
+public:
+    int updateCalled;
+
+    TestAnimation() : updateCalled(0) {}
+
+    virtual void updateCurrentTime(int /*currentTime*/) {
+        updateCalled++;
+    }
+    virtual int duration() const {
+        return 100;
+    }
+};
+
+void tst_qdeclarativedebughelper::getScriptEngine()
+{
+    QDeclarativeEngine engine;
+
+    QScriptEngine *scriptEngine = QDeclarativeDebugHelper::getScriptEngine(&engine);
+    QVERIFY(scriptEngine);
+    QCOMPARE(scriptEngine, QDeclarativeEnginePrivate::getScriptEngine(&engine));
+}
+
+void tst_qdeclarativedebughelper::setAnimationSlowDownFactor()
+{
+    TestAnimation animation;
+
+    // first check whether setup works
+    QCOMPARE(animation.updateCalled, 0);
+    animation.start();
+    QTest::qWait(animation.totalDuration() + 50);
+#ifdef Q_OS_WIN
+    if (animation.state() != QAbstractAnimation::Stopped)
+        QEXPECT_FAIL("", "On windows, consistent timing is not working properly due to bad timer resolution", Abort);
+#endif
+    QCOMPARE(animation.state(), QAbstractAnimation::Stopped);
+    QVERIFY(animation.updateCalled > 1);
+
+    // check if we can pause all animations
+    animation.updateCalled = 0;
+    QDeclarativeDebugHelper::setAnimationSlowDownFactor(0.0);
+    animation.start();
+    QTest::qWait(animation.totalDuration() + 50);
+    QVERIFY(animation.updateCalled <= 1); // updateCurrentTime seems to be called at  least once
+
+    // now run them again
+    animation.updateCalled = 0;
+    QDeclarativeDebugHelper::setAnimationSlowDownFactor(2.0);
+    animation.start();
+    QTest::qWait(animation.totalDuration() + 50);
+    QVERIFY(animation.updateCalled > 1);
+}
+
+void tst_qdeclarativedebughelper::enableDebugging()
+{
+    QTest::ignoreMessage(QtWarningMsg, "Qml debugging is enabled. Only use this in a safe environment!");
+    QDeclarativeDebugHelper::enableDebugging();
+}
+
+QTEST_MAIN(tst_qdeclarativedebughelper)
+
+#include "tst_qdeclarativedebughelper.moc"
+