Import relevant source from Qt 4.8

Change-Id: I5078db4081d95290c54f39d3c0efc2fc2f62e6a6

3 files changed, 198 insertions, 0 deletions

diff --git a/tests/auto/declarative/qdeclarativedebughelper/private_headers/qdeclarativedebughelper_p.h b/tests/auto/declarative/qdeclarativedebughelper/private_headers/qdeclarativedebughelper_p.h
new file mode 100644
index 00000000..9ef2df90
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativedebughelper/private_headers/qdeclarativedebughelper_p.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 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 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDECLARATIVEDEBUGHELPER_P_H
+#define QDECLARATIVEDEBUGHELPER_P_H
+
+#include <QtCore/qglobal.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QScriptEngine;
+class QDeclarativeEngine;
+
+// Helper methods to access private API through a stable interface
+// This is used in the qmljsdebugger library of QtCreator.
+class Q_DECLARATIVE_EXPORT QDeclarativeDebugHelper
+{
+public:
+    static QScriptEngine *getScriptEngine(QDeclarativeEngine *engine);
+    static void setAnimationSlowDownFactor(qreal factor);
+
+    // Enables remote debugging functionality
+    // Only use this for debugging in a safe environment!
+    static void enableDebugging();
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QDECLARATIVEDEBUGHELPER_P_H
diff --git a/tests/auto/declarative/qdeclarativedebughelper/qdeclarativedebughelper.pro b/tests/auto/declarative/qdeclarativedebughelper/qdeclarativedebughelper.pro
new file mode 100644
index 00000000..c52c6524
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativedebughelper/qdeclarativedebughelper.pro
@@ -0,0 +1,5 @@
+load(qttest_p4)
+contains(QT_CONFIG,declarative): QT += network declarative script
+macx:CONFIG -= app_bundle
+
+SOURCES += tst_qdeclarativedebughelper.cpp
diff --git a/tests/auto/declarative/qdeclarativedebughelper/tst_qdeclarativedebughelper.cpp b/tests/auto/declarative/qdeclarativedebughelper/tst_qdeclarativedebughelper.cpp
new file mode 100644
index 00000000..ac4c992e
--- /dev/null
+++ b/tests/auto/declarative/qdeclarativedebughelper/tst_qdeclarativedebughelper.cpp
@@ -0,0 +1,122 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 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 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#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"
+