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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
/* -*- C++ -*-
 */
#include <qcoreapplication.h>
#include <qmetatype.h>
#include <QtTest/QtTest>
#include <QtCore/qvariant.h>
#include <QtDBus/QtDBus>

#include "../qdbusmarshall/common.h"

Q_DECLARE_METATYPE(QVariantList)

#define TEST_INTERFACE_NAME "com.trolltech.QtDBus.MyObject"
#define TEST_SIGNAL_NAME "somethingHappened"

class MyObject: public QObject
{
    Q_OBJECT
    Q_CLASSINFO("D-Bus Interface", "com.trolltech.QtDBus.MyObject")
    Q_CLASSINFO("D-Bus Introspection", ""
"  <interface name=\"com.trolltech.QtDBus.MyObject\" >\n"
"    <property access=\"readwrite\" type=\"i\" name=\"prop1\" />\n"
"    <signal name=\"somethingHappened\" >\n"
"      <arg direction=\"out\" type=\"s\" />\n"
"    </signal>\n"
"    <method name=\"ping\" >\n"
"      <arg direction=\"in\" type=\"v\" name=\"ping\" />\n"
"      <arg direction=\"out\" type=\"v\" name=\"ping\" />\n"
"    </method>\n"
"    <method name=\"ping\" >\n"
"      <arg direction=\"in\" type=\"v\" name=\"ping1\" />\n"
"      <arg direction=\"in\" type=\"v\" name=\"ping2\" />\n"
"      <arg direction=\"out\" type=\"v\" name=\"pong1\" />\n"
"      <arg direction=\"out\" type=\"v\" name=\"pong2\" />\n"
"    </method>\n"
"  </interface>\n"
        "")
public:
    static int callCount;
    static QVariantList callArgs;
    MyObject()
    {
        QObject *subObject = new QObject(this);
        subObject->setObjectName("subObject");
    }

public slots:

    void ping(QDBusMessage msg)
    {
        QDBusConnection sender = QDBusConnection::sender();
        if (!sender.isConnected())
            exit(1);

        ++callCount;
        callArgs = msg.arguments();

        msg.setDelayedReply(true);
        if (!sender.send(msg.createReply(callArgs)))
            exit(1);
    }
};
int MyObject::callCount = 0;
QVariantList MyObject::callArgs;

class Spy: public QObject
{
    Q_OBJECT
public:
    QString received;
    int count;

    Spy() : count(0)
    { }

public slots:
    void spySlot(const QString& arg)
    {
        received = arg;
        ++count;
    }
};

// helper function
void emitSignal(const QString &interface, const QString &name, const QString &arg)
{
    QDBusMessage msg = QDBusMessage::createSignal("/", interface, name);
    msg << arg;
    QDBusConnection::sessionBus().send(msg);

    QTest::qWait(1000);
}

class tst_QDBusInterface: public QObject
{
    Q_OBJECT
    MyObject obj;
private slots:
    void initTestCase();

    void notConnected();
    void notValid();
    void invalidAfterServiceOwnerChanged();
    void introspect();
    void callMethod();
    void invokeMethod();

    void signal();
};

void tst_QDBusInterface::initTestCase()
{
    QDBusConnection con = QDBusConnection::sessionBus();
    QVERIFY(con.isConnected());
    QTest::qWait(500);

    con.registerObject("/", &obj, QDBusConnection::ExportAdaptors
                       | QDBusConnection::ExportAllSlots
                       | QDBusConnection::ExportChildObjects);
}

void tst_QDBusInterface::notConnected()
{
    QDBusConnection connection("");
    QVERIFY(!connection.isConnected());

    QDBusInterface interface("org.freedesktop.DBus", "/", "org.freedesktop.DBus",
                             connection);

    QVERIFY(!interface.isValid());
}

void tst_QDBusInterface::notValid()
{
    QDBusConnection connection("");
    QVERIFY(!connection.isConnected());

    QDBusInterface interface("com.example.Test", QString(), "org.example.Test",
                             connection);

    QVERIFY(!interface.isValid());
}

void tst_QDBusInterface::invalidAfterServiceOwnerChanged()
{
    QDBusConnection conn = QDBusConnection::sessionBus();
    QDBusConnectionInterface *connIface = conn.interface();

    QDBusInterface validInterface(conn.baseService(), "/");
    QVERIFY(validInterface.isValid());
    QDBusInterface invalidInterface("com.example.Test", "/");
    QVERIFY(!invalidInterface.isValid());

    QVERIFY(connIface->registerService("com.example.Test") == QDBusConnectionInterface::ServiceRegistered);

    QSignalSpy serviceOwnerChangedSpy(connIface, SIGNAL(serviceOwnerChanged(QString, QString, QString)));

    QEventLoop loop;
    QObject::connect(connIface, SIGNAL(serviceOwnerChanged(QString, QString, QString)),
                     &loop, SLOT(quit()));
    loop.exec();

    // at least once, but other services might have changed while running the test, too.
    QVERIFY(serviceOwnerChangedSpy.count() >= 1);
    bool foundOurService = false;
    for (int i = 0; i < serviceOwnerChangedSpy.count(); ++i) {
        QList<QVariant> args = serviceOwnerChangedSpy.at(i);
        QString name = args[0].toString();
        QString oldOwner = args[1].toString();
        QString newOwner = args[2].toString();
        if (name == QLatin1String("com.example.Test")) {
            if (newOwner == conn.baseService()) {
                foundOurService = true;
                break;
            }
        }
    }
    QVERIFY(foundOurService);

    QVERIFY(!invalidInterface.isValid());
}

void tst_QDBusInterface::introspect()
{
    QDBusConnection con = QDBusConnection::sessionBus();
    QDBusInterface iface(QDBusConnection::sessionBus().baseService(), QLatin1String("/"),
                         TEST_INTERFACE_NAME);

    const QMetaObject *mo = iface.metaObject();

    QCOMPARE(mo->methodCount() - mo->methodOffset(), 3);
    QVERIFY(mo->indexOfSignal(TEST_SIGNAL_NAME "(QString)") != -1);

    QCOMPARE(mo->propertyCount() - mo->propertyOffset(), 1);
    QVERIFY(mo->indexOfProperty("prop1") != -1);
}

void tst_QDBusInterface::callMethod()
{
    QDBusConnection con = QDBusConnection::sessionBus();
    QDBusInterface iface(QDBusConnection::sessionBus().baseService(), QLatin1String("/"),
                         TEST_INTERFACE_NAME);

    MyObject::callCount = 0;
    QDBusMessage reply = iface.call("ping", qVariantFromValue(QDBusVariant("foo")));
    QCOMPARE(MyObject::callCount, 1);
    QCOMPARE(reply.type(), QDBusMessage::ReplyMessage);

    // verify what the callee received
    QCOMPARE(MyObject::callArgs.count(), 1);
    QVariant v = MyObject::callArgs.at(0);
    QDBusVariant dv = qdbus_cast<QDBusVariant>(v);
    QCOMPARE(dv.variant().type(), QVariant::String);
    QCOMPARE(dv.variant().toString(), QString("foo"));

    // verify reply
    QCOMPARE(reply.arguments().count(), 1);
    v = reply.arguments().at(0);
    dv = qdbus_cast<QDBusVariant>(v);
    QCOMPARE(dv.variant().type(), QVariant::String);
    QCOMPARE(dv.variant().toString(), QString("foo"));
}

void tst_QDBusInterface::invokeMethod()
{
    QDBusConnection con = QDBusConnection::sessionBus();
    QDBusInterface iface(QDBusConnection::sessionBus().baseService(), QLatin1String("/"),
                         TEST_INTERFACE_NAME);

    // make the call without a return type
    MyObject::callCount = 0;
    QDBusVariant arg("foo");
    QVERIFY(QMetaObject::invokeMethod(&iface, "ping", Q_ARG(QDBusVariant, arg)));
    QCOMPARE(MyObject::callCount, 1);

    // verify what the callee received
    QCOMPARE(MyObject::callArgs.count(), 1);
    QVariant v = MyObject::callArgs.at(0);
    QDBusVariant dv = qdbus_cast<QDBusVariant>(v);
    QCOMPARE(dv.variant().type(), QVariant::String);
    QCOMPARE(dv.variant().toString(), QString("foo"));
}

void tst_QDBusInterface::signal()
{
    QDBusConnection con = QDBusConnection::sessionBus();
    QDBusInterface iface(QDBusConnection::sessionBus().baseService(), QLatin1String("/"),
                         TEST_INTERFACE_NAME);

    QString arg = "So long and thanks for all the fish";
    {
        Spy spy;
        spy.connect(&iface, SIGNAL(somethingHappened(QString)), SLOT(spySlot(QString)));

        emitSignal(TEST_INTERFACE_NAME, TEST_SIGNAL_NAME, arg);
        QCOMPARE(spy.count, 1);
        QCOMPARE(spy.received, arg);
    }

    QDBusInterface iface2(QDBusConnection::sessionBus().baseService(), QLatin1String("/"),
                          TEST_INTERFACE_NAME);
    {
        Spy spy;
        spy.connect(&iface, SIGNAL(somethingHappened(QString)), SLOT(spySlot(QString)));
        spy.connect(&iface2, SIGNAL(somethingHappened(QString)), SLOT(spySlot(QString)));

        emitSignal(TEST_INTERFACE_NAME, TEST_SIGNAL_NAME, arg);
        QCOMPARE(spy.count, 2);
        QCOMPARE(spy.received, arg);
    }

    {
        Spy spy, spy2;
        spy.connect(&iface, SIGNAL(somethingHappened(QString)), SLOT(spySlot(QString)));
        spy2.connect(&iface2, SIGNAL(somethingHappened(QString)), SLOT(spySlot(QString)));

        emitSignal(TEST_INTERFACE_NAME, TEST_SIGNAL_NAME, arg);
        QCOMPARE(spy.count, 1);
        QCOMPARE(spy.received, arg);
        QCOMPARE(spy2.count, 1);
        QCOMPARE(spy2.received, arg);
    }
}

QTEST_MAIN(tst_QDBusInterface)

#include "tst_qdbusinterface.moc"