Long live Qt 4.5!

1 files changed, 733 insertions, 0 deletions

diff --git a/tests/auto/qeventloop/tst_qeventloop.cpp b/tests/auto/qeventloop/tst_qeventloop.cpp
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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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+
+
+#include <qabstracteventdispatcher.h>
+#include <qcoreapplication.h>
+#include <qcoreevent.h>
+#include <qeventloop.h>
+#include <qmutex.h>
+#include <qthread.h>
+#include <qtimer.h>
+#include <qwaitcondition.h>
+#include <QTcpServer>
+#include <QTcpSocket>
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+class EventLoopExiter : public QObject
+{
+    Q_OBJECT
+    QEventLoop *eventLoop;
+public:
+    inline EventLoopExiter(QEventLoop *el)
+        : eventLoop(el)
+    { }
+public slots:
+    void exit();
+    void exit1();
+    void exit2();
+};
+
+void EventLoopExiter::exit()
+{ eventLoop->exit(); }
+
+void EventLoopExiter::exit1()
+{ eventLoop->exit(1); }
+
+void EventLoopExiter::exit2()
+{ eventLoop->exit(2); }
+
+class EventLoopThread : public QThread
+{
+    Q_OBJECT
+signals:
+    void checkPoint();
+public:
+    QEventLoop *eventLoop;
+    void run();
+};
+
+void EventLoopThread::run()
+{
+    eventLoop = new QEventLoop;
+    emit checkPoint();
+    (void) eventLoop->exec();
+    delete eventLoop;
+    eventLoop = 0;
+}
+
+class MultipleExecThread : public QThread
+{
+    Q_OBJECT
+signals:
+    void checkPoint();
+public:
+    QMutex mutex;
+    QWaitCondition cond;
+    void run()
+    {
+        QMutexLocker locker(&mutex);
+        // this exec should work
+
+        cond.wakeOne();
+        cond.wait(&mutex);
+
+        QTimer timer;
+        connect(&timer, SIGNAL(timeout()), SLOT(quit()), Qt::DirectConnection);
+        timer.setInterval(1000);
+        timer.start();
+        (void) exec();
+
+        // this should return immediately, since exit() has been called
+        cond.wakeOne();
+        cond.wait(&mutex);
+        QEventLoop eventLoop;
+        (void) eventLoop.exec();
+    }
+};
+
+class StartStopEvent: public QEvent
+{
+public:
+    StartStopEvent(int type, QEventLoop *loop = 0)
+        : QEvent(Type(type)), el(loop)
+    { }
+
+    QEventLoop *el;
+};
+
+class EventLoopExecutor : public QObject
+{
+    Q_OBJECT
+    QEventLoop *eventLoop;
+public:
+    int returnCode;
+    EventLoopExecutor(QEventLoop *eventLoop)
+        : QObject(), eventLoop(eventLoop), returnCode(-42)
+    {
+    }
+public slots:
+    void exec()
+    {
+        QTimer::singleShot(100, eventLoop, SLOT(quit()));
+        // this should return immediately, and the timer event should be delivered to
+        // tst_QEventLoop::exec() test, letting the test complete
+        returnCode = eventLoop->exec();
+    }
+};
+
+#ifndef QT_NO_EXCEPTIONS
+class QEventLoopTestException { };
+
+class ExceptionThrower : public QObject
+{
+    Q_OBJECT
+public:
+    ExceptionThrower() : QObject() { }
+public slots:
+    void throwException()
+    {
+        QEventLoopTestException e;
+        throw e;
+    }
+};
+#endif
+
+class tst_QEventLoop : public QObject
+{
+    Q_OBJECT
+public:
+    tst_QEventLoop();
+    ~tst_QEventLoop();
+public slots:
+    void init();
+    void cleanup();
+private slots:
+    void processEvents();
+    void exec();
+    void exit();
+    void wakeUp();
+    void quit();
+    void processEventsExcludeSocket();
+    void processEventsExcludeTimers();
+
+    // keep this test last:
+    void nestedLoops();
+
+protected:
+    void customEvent(QEvent *e);
+};
+
+tst_QEventLoop::tst_QEventLoop()
+{ }
+
+tst_QEventLoop::~tst_QEventLoop()
+{ }
+
+void tst_QEventLoop::init()
+{ }
+
+void tst_QEventLoop::cleanup()
+{ }
+
+void tst_QEventLoop::processEvents()
+{
+    QSignalSpy spy1(QAbstractEventDispatcher::instance(), SIGNAL(aboutToBlock()));
+    QSignalSpy spy2(QAbstractEventDispatcher::instance(), SIGNAL(awake()));
+
+    QEventLoop eventLoop;
+
+    QCoreApplication::postEvent(&eventLoop, new QEvent(QEvent::User));
+
+    // process posted events, QEventLoop::processEvents() should return
+    // true
+    QVERIFY(eventLoop.processEvents());
+    QCOMPARE(spy1.count(), 0);
+    QCOMPARE(spy2.count(), 1);
+
+    // allow any session manager to complete its handshake, so that
+    // there are no pending events left.
+    while (eventLoop.processEvents())
+        ;
+
+    // On mac we get application started events at this point,
+    // so process events one more time just to be sure.
+    eventLoop.processEvents();
+
+    // no events to process, QEventLoop::processEvents() should return
+    // false
+    spy1.clear();
+    spy2.clear();
+    QVERIFY(!eventLoop.processEvents());
+    QCOMPARE(spy1.count(), 0);
+    QCOMPARE(spy2.count(), 1);
+
+    // make sure the test doesn't block forever
+    int timerId = startTimer(100);
+
+    // wait for more events to process, QEventLoop::processEvents()
+    // should return true
+    spy1.clear();
+    spy2.clear();
+    QVERIFY(eventLoop.processEvents(QEventLoop::WaitForMoreEvents));
+
+    // Verify that the eventloop has blocked and woken up. Some eventloops
+    // may block and wake up multiple times.
+    QVERIFY(spy1.count() > 0);
+    QVERIFY(spy2.count() > 0);
+    // We should get one awake for each aboutToBlock, plus one awake when
+    // processEvents is entered.
+    QVERIFY(spy2.count() >= spy1.count());
+
+    killTimer(timerId);
+}
+
+void tst_QEventLoop::exec()
+{
+    {
+        QEventLoop eventLoop;
+        EventLoopExiter exiter(&eventLoop);
+        int returnCode;
+
+        QTimer::singleShot(100, &exiter, SLOT(exit()));
+        returnCode = eventLoop.exec();
+        QCOMPARE(returnCode, 0);
+
+        QTimer::singleShot(100, &exiter, SLOT(exit1()));
+        returnCode = eventLoop.exec();
+        QCOMPARE(returnCode, 1);
+
+        QTimer::singleShot(100, &exiter, SLOT(exit2()));
+        returnCode = eventLoop.exec();
+        QCOMPARE(returnCode, 2);
+    }
+
+    {
+        // calling exec() after exit()/quit() should return immediately
+        MultipleExecThread thread;
+
+        // start thread and wait for checkpoint
+        thread.mutex.lock();
+        thread.start();
+        thread.cond.wait(&thread.mutex);
+
+        // make sure the eventloop runs
+        QSignalSpy spy(QAbstractEventDispatcher::instance(&thread), SIGNAL(awake()));
+        thread.cond.wakeOne();
+        thread.cond.wait(&thread.mutex);
+        QVERIFY(spy.count() > 0);
+
+        // exec should return immediately
+        spy.clear();
+        thread.cond.wakeOne();
+        thread.mutex.unlock();
+        thread.wait();
+        QCOMPARE(spy.count(), 0);
+    }
+
+    {
+        // a single instance of QEventLoop should not be allowed to recurse into exec()
+        QEventLoop eventLoop;
+        EventLoopExecutor executor(&eventLoop);
+
+        QTimer::singleShot(100, &executor, SLOT(exec()));
+        int returnCode = eventLoop.exec();
+        QCOMPARE(returnCode, 0);
+        QCOMPARE(executor.returnCode, -1);
+    }
+
+#if !defined(QT_NO_EXCEPTIONS) && !defined(Q_OS_WINCE_WM)
+    // Windows Mobile cannot handle cross library exceptions
+    // qobject.cpp will try to rethrow the exception after handling
+    // which causes gwes.exe to crash
+    {
+        // QEventLoop::exec() is exception safe
+        QEventLoop eventLoop;
+        int caughtExceptions = 0;
+
+        try {
+            ExceptionThrower exceptionThrower;
+            QTimer::singleShot(100, &exceptionThrower, SLOT(throwException()));
+            (void) eventLoop.exec();
+        } catch (...) {
+            ++caughtExceptions;
+        }
+        try {
+            ExceptionThrower exceptionThrower;
+            QTimer::singleShot(100, &exceptionThrower, SLOT(throwException()));
+            (void) eventLoop.exec();
+        } catch (...) {
+            ++caughtExceptions;
+        }
+        QCOMPARE(caughtExceptions, 2);
+    }
+#endif
+}
+
+void tst_QEventLoop::exit()
+{ DEPENDS_ON(exec()); }
+
+void tst_QEventLoop::wakeUp()
+{
+    EventLoopThread thread;
+    QEventLoop eventLoop;
+    connect(&thread, SIGNAL(checkPoint()), &eventLoop, SLOT(quit()));
+    connect(&thread, SIGNAL(finished()), &eventLoop, SLOT(quit()));
+
+    thread.start();
+    (void) eventLoop.exec();
+
+    QSignalSpy spy(QAbstractEventDispatcher::instance(&thread), SIGNAL(awake()));
+    thread.eventLoop->wakeUp();
+
+    // give the thread time to wake up
+    QTimer::singleShot(1000, &eventLoop, SLOT(quit()));
+    (void) eventLoop.exec();
+
+    QVERIFY(spy.count() > 0);
+
+    thread.quit();
+    (void) eventLoop.exec();
+}
+
+void tst_QEventLoop::quit()
+{
+    QEventLoop eventLoop;
+    int returnCode;
+
+    QTimer::singleShot(100, &eventLoop, SLOT(quit()));
+    returnCode = eventLoop.exec();
+    QCOMPARE(returnCode, 0);
+}
+
+
+void tst_QEventLoop::nestedLoops()
+{
+    QCoreApplication::postEvent(this, new StartStopEvent(QEvent::User));
+    QCoreApplication::postEvent(this, new StartStopEvent(QEvent::User));
+    QCoreApplication::postEvent(this, new StartStopEvent(QEvent::User));
+
+    // without the fix, this will *wedge* and never return
+    QTest::qWait(1000);
+}
+
+void tst_QEventLoop::customEvent(QEvent *e)
+{
+    if (e->type() == QEvent::User) {
+        QEventLoop loop;
+        QCoreApplication::postEvent(this, new StartStopEvent(int(QEvent::User) + 1, &loop));
+        loop.exec();
+    } else {
+        static_cast<StartStopEvent *>(e)->el->exit();
+    }
+}
+
+class SocketEventsTester: public QObject
+{
+    Q_OBJECT
+public:
+    SocketEventsTester()
+    {
+        socket = 0;
+        server = 0;
+        dataArrived = false;
+        testResult = false;
+    }
+    ~SocketEventsTester()
+    {
+        delete socket;
+        delete server;
+    }
+    bool init()
+    {
+        bool ret = false;
+        server = new QTcpServer();
+        socket = new QTcpSocket();
+        connect(server, SIGNAL(newConnection()), this, SLOT(sendHello()));
+        connect(socket, SIGNAL(readyRead()), this, SLOT(sendAck()), Qt::DirectConnection);
+        if((ret = server->listen(QHostAddress::LocalHost, 0))) {
+            socket->connectToHost(server->serverAddress(), server->serverPort());
+            socket->waitForConnected();
+        }
+        return ret;
+    }
+
+    QTcpSocket *socket;
+    QTcpServer *server;
+    bool dataArrived;
+    bool testResult;
+public slots:
+    void sendAck()
+    {
+        dataArrived = true;
+    }
+    void sendHello()
+    {
+        char data[10] ="HELLO";
+        qint64 size = sizeof(data);
+
+        QTcpSocket *serverSocket = server->nextPendingConnection();
+        serverSocket->write(data, size);
+        serverSocket->flush();
+        QCoreApplication::processEvents(QEventLoop::ExcludeSocketNotifiers);
+        testResult = dataArrived;
+        serverSocket->close();
+        QThread::currentThread()->exit(0);
+    }
+};
+
+class SocketTestThread : public QThread
+{
+    Q_OBJECT
+public:
+    SocketTestThread():QThread(0),testResult(false){};
+    void run()
+    {
+        SocketEventsTester *tester = new SocketEventsTester();
+        if (tester->init())
+            exec();
+        testResult = tester->testResult;
+        delete tester;
+    }
+     bool testResult;
+};
+
+void tst_QEventLoop::processEventsExcludeSocket()
+{
+    SocketTestThread thread;
+    thread.start();
+    QVERIFY(thread.wait());
+    QVERIFY(!thread.testResult);
+}
+
+class TimerReceiver : public QObject
+{
+public:
+    int gotTimerEvent;
+
+    TimerReceiver()
+        : QObject(), gotTimerEvent(-1)
+    { }
+
+    void timerEvent(QTimerEvent *event)
+    {
+        gotTimerEvent = event->timerId();
+    }
+};
+
+void tst_QEventLoop::processEventsExcludeTimers()
+{
+    TimerReceiver timerReceiver;
+    int timerId = timerReceiver.startTimer(0);
+
+    QEventLoop eventLoop;
+
+    // normal process events will send timers
+    eventLoop.processEvents();
+    QCOMPARE(timerReceiver.gotTimerEvent, timerId);
+    timerReceiver.gotTimerEvent = -1;
+
+    // normal process events will send timers
+    eventLoop.processEvents(QEventLoop::X11ExcludeTimers);
+#ifndef Q_OS_UNIX
+    QEXPECT_FAIL("", "X11ExcludeTimers only works on UN*X", Continue);
+#endif
+    QCOMPARE(timerReceiver.gotTimerEvent, -1);
+    timerReceiver.gotTimerEvent = -1;
+
+    // resume timer processing
+    eventLoop.processEvents();
+    QCOMPARE(timerReceiver.gotTimerEvent, timerId);
+    timerReceiver.gotTimerEvent = -1;
+}
+
+QTEST_MAIN(tst_QEventLoop)
+#include "tst_qeventloop.moc"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+// previous test
+
+#if 0
+
+#include <qwidget.h>
+
+#ifdef Q_WS_WIN
+#include <windows.h>
+#endif
+
+
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+class EventHandlerWidget : public QWidget
+{
+public:
+    EventHandlerWidget( QWidget* parent = 0, const char* name = 0 ) : QWidget( parent, name )
+    {
+        installEventFilter( this );
+        recievedPaintEvent = FALSE;
+        recievedMouseEvent = FALSE;
+    }
+    ~EventHandlerWidget() {}
+
+    bool recievedPaintEvent;
+    bool recievedMouseEvent;
+
+protected:
+    bool eventFilter( QObject* o, QEvent* e )
+    {
+        if ( e->type() == QEvent::Paint )
+            recievedPaintEvent = TRUE;
+        else if ( e->type() == QEvent::MouseButtonPress )
+            recievedMouseEvent = TRUE;
+        return QWidget::eventFilter( o, e );
+    }
+};
+
+class InBetweenObject : public QObject
+{
+    Q_OBJECT
+public:
+    InBetweenObject(QObject *parent, QObject *child)
+    : QObject(parent), childObject(child)
+    {
+        childObject->setParent(this);
+        ++instanceCounter;
+    }
+
+    ~InBetweenObject()
+    {
+        --instanceCounter;
+    }
+
+    static int instanceCounter;
+
+protected:
+    void childEvent(QChildEvent *e)
+    {
+        if (e->removed() && e->child() == childObject) {
+            deleteLater();
+        }
+    }
+
+private:
+    QObject *childObject;
+};
+
+class ObjectContainer : public QObject
+{
+public:
+    ObjectContainer(QObject *parent = 0)
+    : QObject(parent)
+    {
+    }
+
+protected:
+    void childEvent(QChildEvent *e)
+    {
+        if (e->inserted() && !::qobject_cast<InBetweenObject*>(e->child())) {
+            InBetweenObject *inBetween = new InBetweenObject(this, e->child());
+        }
+    }
+};
+
+class tst_QEventLoop : public QObject
+{
+    Q_OBJECT
+public:
+    tst_QEventLoop();
+    ~tst_QEventLoop();
+public slots:
+    void init();
+    void cleanup();
+private slots:
+    void processEvents();
+    void eventHandlerPostsEvent();
+};
+
+tst_QEventLoop::tst_QEventLoop()
+{
+}
+
+tst_QEventLoop::~tst_QEventLoop()
+{
+}
+
+void tst_QEventLoop::init()
+{
+}
+
+void tst_QEventLoop::cleanup()
+{
+}
+
+
+void tst_QEventLoop::processEvents()
+{
+    EventHandlerWidget *mainWidget = new EventHandlerWidget( 0 );
+    mainWidget->show();
+    qApp->setMainWidget( mainWidget );
+
+#ifdef Q_WS_WIN
+    QEventLoop* eventLoop = qApp->eventLoop();
+    eventLoop->processEvents( QEventLoop::AllEvents );
+    QVERIFY( !eventLoop->hasPendingEvents() );
+
+    // Make sure the flag is cleared first
+    mainWidget->recievedPaintEvent = FALSE;
+#ifdef Q_WS_WIN
+    InvalidateRect( mainWidget->winId(), 0, TRUE );
+#endif
+    QVERIFY( !mainWidget->recievedPaintEvent );
+    eventLoop->processEvents( QEventLoop::AllEvents );
+    QVERIFY( mainWidget->recievedPaintEvent );
+
+#ifdef Q_WS_WIN
+    // TODO: Hardcoded for now...
+    LPARAM lParam = MAKELPARAM( 10, 10 );
+    PostMessage( mainWidget->winId(), WM_LBUTTONDOWN, 0, lParam );
+#endif
+
+    mainWidget->recievedMouseEvent = FALSE;
+    eventLoop->processEvents( QEventLoop::ExcludeUserInput );
+    QVERIFY( !mainWidget->recievedMouseEvent );
+#else
+    QSKIP( "QEventLoop test is not implememented on X11 yet", SkipAll);
+#endif
+}
+
+int InBetweenObject::instanceCounter = 0;
+
+void tst_QEventLoop::eventHandlerPostsEvent()
+{
+    ObjectContainer container;
+
+    QObject *object = new QObject(&container);
+    qApp->processEvents();
+    qApp->processEvents();
+
+    QCOMPARE(InBetweenObject::instanceCounter, 1);
+
+    object->deleteLater();
+
+    qApp->processEvents();
+    QCOMPARE(InBetweenObject::instanceCounter, 0);
+};
+
+QTEST_MAIN(tst_QEventLoop)
+#include "tst_qeventloop.moc"
+
+#endif