tests/auto/qlocalsocket/tst_qlocalsocket.cpp
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/qlocalsocket/tst_qlocalsocket.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,1091 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 <QtTest/QtTest>
+
+#include <qtextstream.h>
+#include <QtNetwork/qlocalsocket.h>
+#include <QtNetwork/qlocalserver.h>
+#include "../../shared/util.h"
+
+#ifdef Q_OS_SYMBIAN
+    #include <unistd.h>
+#endif
+//TESTED_CLASS=QLocalServer, QLocalSocket
+//TESTED_FILES=network/socket/qlocalserver.cpp network/socket/qlocalsocket.cpp
+#ifdef Q_OS_SYMBIAN
+    #define STRINGIFY(x) #x
+    #define TOSTRING(x) STRINGIFY(x)
+    #define SRCDIR "C:/Private/" TOSTRING(SYMBIAN_SRCDIR_UID) "/"
+#endif
+Q_DECLARE_METATYPE(QLocalSocket::LocalSocketError)
+Q_DECLARE_METATYPE(QLocalSocket::LocalSocketState)
+
+class tst_QLocalSocket : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QLocalSocket();
+    virtual ~tst_QLocalSocket();
+
+public Q_SLOTS:
+    void init();
+    void cleanup();
+
+private slots:
+    // basics
+    void server_basic();
+    void server_connectionsCount();
+    void socket_basic();
+
+    void listen_data();
+    void listen();
+
+    void listenAndConnect_data();
+    void listenAndConnect();
+
+    void sendData_data();
+    void sendData();
+
+    void readBufferOverflow();
+
+    void fullPath();
+
+    void hitMaximumConnections_data();
+    void hitMaximumConnections();
+
+    void setSocketDescriptor();
+
+    void threadedConnection_data();
+    void threadedConnection();
+
+    void processConnection_data();
+    void processConnection();
+
+    void longPath();
+    void waitForDisconnect();
+    void waitForDisconnectByServer();
+
+    void removeServer();
+
+    void recycleServer();
+
+    void multiConnect();
+    void writeOnlySocket();
+    void writeToClientAndDisconnect();
+    void debug();
+    void bytesWrittenSignal();
+
+
+#ifdef Q_OS_SYMBIAN
+private:
+    void unlink(QString serverName);
+#endif
+};
+
+tst_QLocalSocket::tst_QLocalSocket()
+{
+    if (!QFile::exists("lackey/lackey"
+#ifdef Q_OS_WIN
+    ".exe"
+#endif
+                ))
+        qWarning() << "lackey executable doesn't exists!";
+}
+
+tst_QLocalSocket::~tst_QLocalSocket()
+{
+}
+
+void tst_QLocalSocket::init()
+{
+    qRegisterMetaType<QLocalSocket::LocalSocketState>("QLocalSocket::LocalSocketState");
+    qRegisterMetaType<QLocalSocket::LocalSocketError>("QLocalSocket::LocalSocketError");
+}
+
+void tst_QLocalSocket::cleanup()
+{
+}
+
+class LocalServer : public QLocalServer
+{
+    Q_OBJECT
+
+public:
+    LocalServer() : QLocalServer()
+    {
+        connect(this, SIGNAL(newConnection()), this, SLOT(slotNewConnection()));
+    }
+
+    bool listen(const QString &name)
+    {
+        removeServer(name);
+        return QLocalServer::listen(name);
+    }
+
+    QList<int> hits;
+
+protected:
+    void incomingConnection(quintptr socketDescriptor)
+    {
+        hits.append(socketDescriptor);
+        QLocalServer::incomingConnection(socketDescriptor);
+    }
+
+private slots:
+    void slotNewConnection() {
+        QVERIFY(!hits.isEmpty());
+        QVERIFY(hasPendingConnections());
+    }
+};
+
+class LocalSocket : public QLocalSocket
+{
+    Q_OBJECT
+
+public:
+    LocalSocket(QObject *parent = 0) : QLocalSocket(parent)
+    {
+        connect(this, SIGNAL(connected()),
+                this, SLOT(slotConnected()));
+        connect(this, SIGNAL(disconnected()),
+                this, SLOT(slotDisconnected()));
+        connect(this, SIGNAL(error(QLocalSocket::LocalSocketError)),
+                this, SLOT(slotError(QLocalSocket::LocalSocketError)));
+        connect(this, SIGNAL(stateChanged(QLocalSocket::LocalSocketState)),
+                this, SLOT(slotStateChanged(QLocalSocket::LocalSocketState)));
+        connect(this, SIGNAL(readyRead()),
+                this, SLOT(slotReadyRead()));
+    }
+
+private slots:
+    void slotConnected()
+    {
+        QCOMPARE(state(), QLocalSocket::ConnectedState);
+    }
+    void slotDisconnected()
+    {
+        QCOMPARE(state(), QLocalSocket::UnconnectedState);
+    }
+    void slotError(QLocalSocket::LocalSocketError newError)
+    {
+        QVERIFY(errorString() != "Unknown error");
+        QCOMPARE(error(), newError);
+    }
+    void slotStateChanged(QLocalSocket::LocalSocketState newState)
+    {
+        QCOMPARE(state(), newState);
+    }
+    void slotReadyRead()
+    {
+        QVERIFY(bytesAvailable() > 0);
+    }
+};
+
+// basic test make sure no segfaults and check default values
+void tst_QLocalSocket::server_basic()
+{
+    LocalServer server;
+    QSignalSpy spyNewConnection(&server, SIGNAL(newConnection()));
+    server.close();
+    QCOMPARE(server.errorString(), QString());
+    QCOMPARE(server.hasPendingConnections(), false);
+    QCOMPARE(server.isListening(), false);
+    QCOMPARE(server.maxPendingConnections(), 30);
+    QCOMPARE(server.nextPendingConnection(), (QLocalSocket*)0);
+    QCOMPARE(server.serverName(), QString());
+    QCOMPARE(server.fullServerName(), QString());
+    QCOMPARE(server.serverError(), QAbstractSocket::UnknownSocketError);
+    server.setMaxPendingConnections(20);
+    bool timedOut = true;
+    QCOMPARE(server.waitForNewConnection(3000, &timedOut), false);
+    QVERIFY(!timedOut);
+    QCOMPARE(server.listen(QString()), false);
+
+    QCOMPARE(server.hits.count(), 0);
+    QCOMPARE(spyNewConnection.count(), 0);
+}
+
+void tst_QLocalSocket::server_connectionsCount()
+{
+    LocalServer server;
+    server.setMaxPendingConnections(10);
+    QCOMPARE(server.maxPendingConnections(), 10);
+}
+
+// basic test make sure no segfaults and check default values
+void tst_QLocalSocket::socket_basic()
+{
+    LocalSocket socket;
+    QSignalSpy spyConnected(&socket, SIGNAL(connected()));
+    QSignalSpy spyDisconnected(&socket, SIGNAL(disconnected()));
+    QSignalSpy spyError(&socket, SIGNAL(error(QLocalSocket::LocalSocketError)));
+    QSignalSpy spyStateChanged(&socket, SIGNAL(stateChanged(QLocalSocket::LocalSocketState)));
+    QSignalSpy spyReadyRead(&socket, SIGNAL(readyRead()));
+
+    QCOMPARE(socket.serverName(), QString());
+    QCOMPARE(socket.fullServerName(), QString());
+    socket.abort();
+    QVERIFY(socket.bytesAvailable() == 0);
+    QVERIFY(socket.bytesToWrite() == 0);
+    QCOMPARE(socket.canReadLine(), false);
+    socket.close();
+    socket.disconnectFromServer();
+    QCOMPARE(QLocalSocket::UnknownSocketError, socket.error());
+    QVERIFY(socket.errorString() != QString());
+    QCOMPARE(socket.flush(), false);
+    QCOMPARE(socket.isValid(), false);
+    QVERIFY(socket.readBufferSize() == 0);
+    socket.setReadBufferSize(0);
+    //QCOMPARE(socket.socketDescriptor(), -1);
+    QCOMPARE(socket.state(), QLocalSocket::UnconnectedState);
+    QCOMPARE(socket.waitForConnected(0), false);
+    QCOMPARE(socket.waitForDisconnected(0), false);
+    QCOMPARE(socket.waitForReadyRead(0), false);
+
+    QCOMPARE(spyConnected.count(), 0);
+    QCOMPARE(spyDisconnected.count(), 0);
+    QCOMPARE(spyError.count(), 0);
+    QCOMPARE(spyStateChanged.count(), 0);
+    QCOMPARE(spyReadyRead.count(), 0);
+}
+
+void tst_QLocalSocket::listen_data()
+{
+    QTest::addColumn<QString>("name");
+    QTest::addColumn<bool>("canListen");
+    QTest::addColumn<bool>("close");
+    QTest::newRow("null") << QString() << false << false;
+    QTest::newRow("tst_localsocket") << "tst_localsocket" << true << true;
+    QTest::newRow("tst_localsocket") << "tst_localsocket" << true << false;
+}
+
+// start a server that listens, but don't connect a socket, make sure everything is in order
+void tst_QLocalSocket::listen()
+{
+    LocalServer server;
+    QSignalSpy spyNewConnection(&server, SIGNAL(newConnection()));
+
+    QFETCH(QString, name);
+#ifdef Q_OS_SYMBIAN
+    unlink(name);
+#endif
+    QFETCH(bool, canListen);
+    QFETCH(bool, close);
+    QVERIFY2((server.listen(name) == canListen), server.errorString().toLatin1().constData());
+
+    // test listening
+    QCOMPARE(server.serverName(), name);
+    QVERIFY(server.fullServerName().contains(name));
+    QCOMPARE(server.isListening(), canListen);
+    QCOMPARE(server.hasPendingConnections(), false);
+    QCOMPARE(server.nextPendingConnection(), (QLocalSocket*)0);
+    QCOMPARE(server.hits.count(), 0);
+    QCOMPARE(spyNewConnection.count(), 0);
+    if (canListen) {
+        QVERIFY(server.errorString() == QString());
+        QCOMPARE(server.serverError(), QAbstractSocket::UnknownSocketError);
+        // already isListening
+        QVERIFY(!server.listen(name));
+    } else {
+        QVERIFY(server.errorString() != QString());
+        QCOMPARE(server.serverError(), QAbstractSocket::HostNotFoundError);
+    }
+    QCOMPARE(server.maxPendingConnections(), 30);
+    bool timedOut = false;
+    QCOMPARE(server.waitForNewConnection(3000, &timedOut), false);
+    QCOMPARE(timedOut, canListen);
+    if (close)
+        server.close();
+}
+
+void tst_QLocalSocket::listenAndConnect_data()
+{
+    QTest::addColumn<QString>("name");
+    QTest::addColumn<bool>("canListen");
+    QTest::addColumn<int>("connections");
+    for (int i = 0; i < 3; ++i) {
+        int connections = i;
+        if (i == 2)
+            connections = 5;
+        QTest::newRow(QString("null %1").arg(i).toLatin1()) << QString() << false << connections;
+        QTest::newRow(QString("tst_localsocket %1").arg(i).toLatin1()) << "tst_localsocket" << true << connections;
+    }
+}
+
+void tst_QLocalSocket::listenAndConnect()
+{
+    LocalServer server;
+    QSignalSpy spyNewConnection(&server, SIGNAL(newConnection()));
+
+    QFETCH(QString, name);
+    QFETCH(bool, canListen);
+#ifdef Q_OS_SYMBIAN
+    unlink(name);
+#endif
+    QCOMPARE(server.listen(name), canListen);
+    QTest::qWait(1000);
+    //QVERIFY(!server.errorString().isEmpty());
+    QCOMPARE(server.serverError(),
+            canListen ? QAbstractSocket::UnknownSocketError : QAbstractSocket::HostNotFoundError);
+
+    // test creating connection(s)
+    QFETCH(int, connections);
+    QList<QLocalSocket*> sockets;
+    for (int i = 0; i < connections; ++i) {
+        LocalSocket *socket = new LocalSocket;
+
+        QSignalSpy spyConnected(socket, SIGNAL(connected()));
+        QSignalSpy spyDisconnected(socket, SIGNAL(disconnected()));
+        QSignalSpy spyError(socket, SIGNAL(error(QLocalSocket::LocalSocketError)));
+        QSignalSpy spyStateChanged(socket, SIGNAL(stateChanged(QLocalSocket::LocalSocketState)));
+        QSignalSpy spyReadyRead(socket, SIGNAL(readyRead()));
+
+        socket->connectToServer(name);
+#if defined(QT_LOCALSOCKET_TCP)
+        QTest::qWait(250);
+#endif
+
+        QCOMPARE(socket->serverName(), name);
+        QVERIFY(socket->fullServerName().contains(name));
+        sockets.append(socket);
+        if (canListen) {
+            QCOMPARE(socket->errorString(), QString("Unknown error"));
+            QCOMPARE(socket->error(), QLocalSocket::UnknownSocketError);
+            QCOMPARE(socket->state(), QLocalSocket::ConnectedState);
+            //QVERIFY(socket->socketDescriptor() != -1);
+            QCOMPARE(spyError.count(), 0);
+        } else {
+            QVERIFY(socket->errorString() != QString());
+            QVERIFY(socket->error() != QLocalSocket::UnknownSocketError);
+            QCOMPARE(socket->state(), QLocalSocket::UnconnectedState);
+            //QVERIFY(socket->socketDescriptor() == -1);
+            QCOMPARE(qVariantValue<QLocalSocket::LocalSocketError>(spyError.first()[0]),
+                     QLocalSocket::ServerNotFoundError);
+        }
+
+        QVERIFY(socket->bytesAvailable() == 0);
+        QVERIFY(socket->bytesToWrite() == 0);
+        QCOMPARE(socket->canReadLine(), false);
+        QCOMPARE(socket->flush(), false);
+        QCOMPARE(socket->isValid(), canListen);
+        QCOMPARE(socket->readBufferSize(), (qint64)0);
+        QCOMPARE(socket->waitForConnected(0), canListen);
+        QCOMPARE(socket->waitForReadyRead(0), false);
+
+        QTRY_COMPARE(spyConnected.count(), canListen ? 1 : 0);
+        QCOMPARE(spyDisconnected.count(), 0);
+
+        // error signals
+        QVERIFY(spyError.count() >= 0);
+        if (canListen) {
+            if (spyError.count() > 0)
+                QCOMPARE(qVariantValue<QLocalSocket::LocalSocketError>(spyError.first()[0]),
+                         QLocalSocket::SocketTimeoutError);
+        } else {
+            QCOMPARE(qVariantValue<QLocalSocket::LocalSocketError>(spyError.first()[0]),
+                     QLocalSocket::ServerNotFoundError);
+        }
+
+        // Check first and last state
+        QCOMPARE(qVariantValue<QLocalSocket::LocalSocketState>(spyStateChanged.first()[0]),
+                 QLocalSocket::ConnectingState);
+#if 0
+        for (int j = 0; j < spyStateChanged.count(); ++j) {
+            QLocalSocket::LocalSocketState s;
+            s = qVariantValue<QLocalSocket::LocalSocketState>(spyStateChanged.at(j).at(0));
+            qDebug() << s;
+        }
+#endif
+        if (canListen)
+            QCOMPARE(qVariantValue<QLocalSocket::LocalSocketState>(spyStateChanged.last()[0]),
+                     QLocalSocket::ConnectedState);
+        QCOMPARE(spyStateChanged.count(), 2);
+        QCOMPARE(spyReadyRead.count(), 0);
+
+        bool timedOut = true;
+        QCOMPARE(server.waitForNewConnection(3000, &timedOut), canListen);
+        QVERIFY(!timedOut);
+        QCOMPARE(server.hasPendingConnections(), canListen);
+        QCOMPARE(server.isListening(), canListen);
+        // NOTE: socket disconnecting is not tested here
+
+        // server checks post connection
+        if (canListen) {
+            QCOMPARE(server.serverName(), name);
+            QVERIFY(server.fullServerName().contains(name));
+            QVERIFY(server.nextPendingConnection() != (QLocalSocket*)0);
+            QTRY_COMPARE(server.hits.count(), i + 1);
+            QCOMPARE(spyNewConnection.count(), i + 1);
+            QVERIFY(server.errorString() == QString());
+            QCOMPARE(server.serverError(), QAbstractSocket::UnknownSocketError);
+        } else {
+            QVERIFY(server.serverName().isEmpty());
+            QVERIFY(server.fullServerName().isEmpty());
+            QVERIFY(server.nextPendingConnection() == (QLocalSocket*)0);
+            QCOMPARE(spyNewConnection.count(), 0);
+            QCOMPARE(server.hits.count(), 0);
+            QVERIFY(server.errorString() != QString());
+            QCOMPARE(server.serverError(), QAbstractSocket::HostNotFoundError);
+        }
+    }
+    qDeleteAll(sockets.begin(), sockets.end());
+
+    server.close();
+
+    QCOMPARE(server.hits.count(), (canListen ? connections : 0));
+    QCOMPARE(spyNewConnection.count(), (canListen ? connections : 0));
+}
+
+void tst_QLocalSocket::sendData_data()
+{
+    listenAndConnect_data();
+}
+
+void tst_QLocalSocket::sendData()
+{
+    QFETCH(QString, name);
+#ifdef Q_OS_SYMBIAN
+    unlink(name);
+#endif
+    QFETCH(bool, canListen);
+
+    LocalServer server;
+    QSignalSpy spy(&server, SIGNAL(newConnection()));
+
+    QCOMPARE(server.listen(name), canListen);
+
+    LocalSocket socket;
+    QSignalSpy spyConnected(&socket, SIGNAL(connected()));
+    QSignalSpy spyDisconnected(&socket, SIGNAL(disconnected()));
+    QSignalSpy spyError(&socket, SIGNAL(error(QLocalSocket::LocalSocketError)));
+    QSignalSpy spyStateChanged(&socket, SIGNAL(stateChanged(QLocalSocket::LocalSocketState)));
+    QSignalSpy spyReadyRead(&socket, SIGNAL(readyRead()));
+
+    // test creating a connection
+    socket.connectToServer(name);
+    bool timedOut = true;
+
+    QCOMPARE(server.waitForNewConnection(3000, &timedOut), canListen);
+
+#if defined(QT_LOCALSOCKET_TCP)
+    QTest::qWait(250);
+#endif
+    QVERIFY(!timedOut);
+    QCOMPARE(spyConnected.count(), canListen ? 1 : 0);
+    QCOMPARE(socket.state(), canListen ? QLocalSocket::ConnectedState : QLocalSocket::UnconnectedState);
+
+    // test sending/receiving data
+    if (server.hasPendingConnections()) {
+        QString testLine = "test";
+#ifdef Q_OS_SYMBIAN
+        for (int i = 0; i < 25 * 1024; ++i)
+#else
+        for (int i = 0; i < 50000; ++i)
+#endif
+            testLine += "a";
+        QLocalSocket *serverSocket = server.nextPendingConnection();
+        QVERIFY(serverSocket);
+        QCOMPARE(serverSocket->state(), QLocalSocket::ConnectedState);
+        QTextStream out(serverSocket);
+        QTextStream in(&socket);
+        out << testLine << endl;
+        bool wrote = serverSocket->waitForBytesWritten(3000);
+
+        if (!socket.canReadLine())
+            QVERIFY(socket.waitForReadyRead());
+
+        QVERIFY(socket.bytesAvailable() >= 0);
+        QCOMPARE(socket.bytesToWrite(), (qint64)0);
+        QCOMPARE(socket.flush(), false);
+        QCOMPARE(socket.isValid(), canListen);
+        QCOMPARE(socket.readBufferSize(), (qint64)0);
+        QCOMPARE(spyReadyRead.count(), 1);
+
+        QVERIFY(testLine.startsWith(in.readLine()));
+
+        QVERIFY(wrote || serverSocket->waitForBytesWritten(1000));
+
+        QCOMPARE(serverSocket->errorString(), QString("Unknown error"));
+        QCOMPARE(socket.errorString(), QString("Unknown error"));
+    }
+
+    socket.disconnectFromServer();
+    QCOMPARE(spyConnected.count(), canListen ? 1 : 0);
+    QCOMPARE(spyDisconnected.count(), canListen ? 1 : 0);
+    QCOMPARE(spyError.count(), canListen ? 0 : 1);
+    QCOMPARE(spyStateChanged.count(), canListen ? 4 : 2);
+    QCOMPARE(spyReadyRead.count(), canListen ? 1 : 0);
+
+    server.close();
+
+    QCOMPARE(server.hits.count(), (canListen ? 1 : 0));
+    QCOMPARE(spy.count(), (canListen ? 1 : 0));
+}
+
+void tst_QLocalSocket::readBufferOverflow()
+{
+    const int readBufferSize = 128;
+    const int dataBufferSize = readBufferSize * 2;
+    const QString serverName = QLatin1String("myPreciousTestServer");
+    LocalServer server;
+    server.listen(serverName);
+    QVERIFY(server.isListening());
+
+    LocalSocket client;
+    client.setReadBufferSize(readBufferSize);
+    client.connectToServer(serverName);
+
+    bool timedOut = true;
+    QVERIFY(server.waitForNewConnection(3000, &timedOut));
+    QVERIFY(!timedOut);
+
+    QCOMPARE(client.state(), QLocalSocket::ConnectedState);
+    QVERIFY(server.hasPendingConnections());
+
+    QLocalSocket* serverSocket = server.nextPendingConnection();
+    char buffer[dataBufferSize];
+    memset(buffer, 0, dataBufferSize);
+    serverSocket->write(buffer, dataBufferSize);
+    serverSocket->flush();
+
+    QVERIFY(client.waitForReadyRead());
+    QCOMPARE(client.read(buffer, readBufferSize), qint64(readBufferSize));
+#if defined(QT_LOCALSOCKET_TCP) || defined(Q_OS_SYMBIAN)
+    QTest::qWait(250);
+#endif
+    QCOMPARE(client.read(buffer, readBufferSize), qint64(readBufferSize));
+}
+
+// QLocalSocket/Server can take a name or path, check that it works as expected
+void tst_QLocalSocket::fullPath()
+{
+    QLocalServer server;
+    QString name = "qlocalsocket_pathtest";
+#if defined(Q_OS_SYMBIAN)
+    QString path = "";
+#elif defined(QT_LOCALSOCKET_TCP)
+    QString path = "QLocalServer";
+#elif defined(Q_OS_WIN)
+    QString path = "\\\\.\\pipe\\";
+#else
+    QString path = "/tmp";
+#endif
+    QString serverName = path + '/' + name;
+    QVERIFY2(server.listen(serverName), server.errorString().toLatin1().constData());
+    QCOMPARE(server.serverName(), serverName);
+    QCOMPARE(server.fullServerName(), serverName);
+
+    LocalSocket socket;
+    socket.connectToServer(serverName);
+
+    QCOMPARE(socket.serverName(), serverName);
+    QCOMPARE(socket.fullServerName(), serverName);
+    socket.disconnectFromServer();
+#ifdef QT_LOCALSOCKET_TCP
+    QTest::qWait(250);
+#endif
+    QCOMPARE(socket.serverName(), QString());
+    QCOMPARE(socket.fullServerName(), QString());
+}
+
+void tst_QLocalSocket::hitMaximumConnections_data()
+{
+    QTest::addColumn<int>("max");
+    QTest::newRow("none") << 0;
+    QTest::newRow("1") << 1;
+    QTest::newRow("3") << 3;
+}
+
+void tst_QLocalSocket::hitMaximumConnections()
+{
+    QFETCH(int, max);
+    LocalServer server;
+    QString name = "tst_localsocket";
+#ifdef Q_OS_SYMBIAN
+    unlink(name);
+#endif
+    server.setMaxPendingConnections(max);
+    QVERIFY2(server.listen(name), server.errorString().toLatin1().constData());
+    int connections = server.maxPendingConnections() + 1;
+    QList<QLocalSocket*> sockets;
+    for (int i = 0; i < connections; ++i) {
+        LocalSocket *socket = new LocalSocket;
+        sockets.append(socket);
+        socket->connectToServer(name);
+    }
+   bool timedOut = true;
+   QVERIFY(server.waitForNewConnection(3000, &timedOut));
+   QVERIFY(!timedOut);
+   QVERIFY(server.hits.count() > 0);
+   qDeleteAll(sockets.begin(), sockets.end());
+}
+
+// check that state and mode are kept
+void tst_QLocalSocket::setSocketDescriptor()
+{
+    LocalSocket socket;
+    quintptr minusOne = -1;
+    socket.setSocketDescriptor(minusOne, QLocalSocket::ConnectingState, QIODevice::Append);
+    QCOMPARE(socket.socketDescriptor(), minusOne);
+    QCOMPARE(socket.state(), QLocalSocket::ConnectingState);
+    QVERIFY((socket.openMode() & QIODevice::Append) != 0);
+}
+
+class Client : public QThread
+{
+
+public:
+    void run()
+    {
+        QString testLine = "test";
+        LocalSocket socket;
+        QSignalSpy spyReadyRead(&socket, SIGNAL(readyRead()));
+        int tries = 0;
+        do {
+            socket.connectToServer("qlocalsocket_threadtest");
+            if (socket.error() != QLocalSocket::ServerNotFoundError
+                && socket.error() != QLocalSocket::ConnectionRefusedError)
+                break;
+            QTest::qWait(100);
+            ++tries;
+        } while ((socket.error() == QLocalSocket::ServerNotFoundError
+                  || socket.error() == QLocalSocket::ConnectionRefusedError)
+             && tries < 1000);
+        if (tries == 0 && socket.state() != QLocalSocket::ConnectedState) {
+            QVERIFY(socket.waitForConnected(3000));
+            QVERIFY(socket.state() == QLocalSocket::ConnectedState);
+        }
+
+        // We should *not* have this signal yet!
+        if (tries == 0)
+            QCOMPARE(spyReadyRead.count(), 0);
+        socket.waitForReadyRead();
+        QCOMPARE(spyReadyRead.count(), 1);
+        QTextStream in(&socket);
+        QCOMPARE(in.readLine(), testLine);
+        socket.close();
+    }
+};
+
+class Server : public QThread
+{
+
+public:
+    int clients;
+    void run()
+    {
+        QString testLine = "test";
+        LocalServer server;
+        server.setMaxPendingConnections(10);
+        QVERIFY2(server.listen("qlocalsocket_threadtest"),
+                 server.errorString().toLatin1().constData());
+        int done = clients;
+        while (done > 0) {
+            bool timedOut = true;
+            QVERIFY(server.waitForNewConnection(3000, &timedOut));
+            QVERIFY(!timedOut);
+            QLocalSocket *serverSocket = server.nextPendingConnection();
+            QVERIFY(serverSocket);
+            QTextStream out(serverSocket);
+            out << testLine << endl;
+            QCOMPARE(serverSocket->state(), QLocalSocket::ConnectedState);
+            QVERIFY2(serverSocket->waitForBytesWritten(), serverSocket->errorString().toLatin1().constData());
+            QCOMPARE(serverSocket->errorString(), QString("Unknown error"));
+            --done;
+            delete serverSocket;
+        }
+        QCOMPARE(server.hits.count(), clients);
+    }
+};
+
+void tst_QLocalSocket::threadedConnection_data()
+{
+    QTest::addColumn<int>("threads");
+    QTest::newRow("1 client") << 1;
+    QTest::newRow("2 clients") << 2;
+#ifdef Q_OS_WINCE
+    QTest::newRow("4 clients") << 4;
+#endif
+#ifndef Q_OS_WIN
+    QTest::newRow("5 clients") << 5;
+    QTest::newRow("10 clients") << 10;
+#endif
+#ifndef Q_OS_WINCE
+    QTest::newRow("20 clients") << 20;
+#endif
+}
+
+void tst_QLocalSocket::threadedConnection()
+{
+#ifdef Q_OS_SYMBIAN
+    unlink("qlocalsocket_threadtest");
+#endif
+
+    QFETCH(int, threads);
+    Server server;
+#if defined(Q_OS_SYMBIAN)
+    server.setStackSize(0x14000);
+#endif
+    server.clients = threads;
+    server.start();
+
+    QList<Client*> clients;
+    for (int i = 0; i < threads; ++i) {
+        clients.append(new Client());
+#if defined(Q_OS_SYMBIAN)
+        clients.last()->setStackSize(0x14000);
+#endif
+        clients.last()->start();
+    }
+
+    server.wait();
+    while (!clients.isEmpty()) {
+        QVERIFY(clients.first()->wait(3000));
+        Client *client =clients.takeFirst();
+        client->terminate();
+        delete client;
+    }
+}
+
+void tst_QLocalSocket::processConnection_data()
+{
+    QTest::addColumn<int>("processes");
+    QTest::newRow("1 client") << 1;
+#ifndef Q_OS_WIN
+    QTest::newRow("2 clients") << 2;
+    QTest::newRow("5 clients") << 5;
+#endif
+    QTest::newRow("30 clients") << 30;
+}
+
+/*!
+    Create external processes that produce and consume.
+ */
+void tst_QLocalSocket::processConnection()
+{
+#if defined(QT_NO_PROCESS) || defined(Q_CC_NOKIAX86)
+    QSKIP("Qt was compiled with QT_NO_PROCESS", SkipAll);
+#else
+    QFETCH(int, processes);
+    QStringList serverArguments = QStringList() << SRCDIR "lackey/scripts/server.js" << QString::number(processes);
+    QProcess producer;
+    producer.setProcessChannelMode(QProcess::ForwardedChannels);
+#ifdef Q_WS_QWS
+    serverArguments << "-qws";
+#endif
+    QList<QProcess*> consumers;
+    producer.start("lackey/lackey", serverArguments);
+    QVERIFY(producer.waitForStarted(-1));
+    QTest::qWait(2000);
+    for (int i = 0; i < processes; ++i) {
+       QStringList arguments = QStringList() << SRCDIR "lackey/scripts/client.js";
+#ifdef Q_WS_QWS
+       arguments << "-qws";
+#endif
+        QProcess *p = new QProcess;
+        p->setProcessChannelMode(QProcess::ForwardedChannels);
+        consumers.append(p);
+        p->start("lackey/lackey", arguments);
+    }
+
+    while (!consumers.isEmpty()) {
+        consumers.first()->waitForFinished(20000);
+        QCOMPARE(consumers.first()->exitStatus(), QProcess::NormalExit);
+        QCOMPARE(consumers.first()->exitCode(), 0);
+        QProcess *consumer = consumers.takeFirst();
+        consumer->terminate();
+        delete consumer;
+    }
+    producer.waitForFinished(15000);
+#endif
+}
+
+void tst_QLocalSocket::longPath()
+{
+#ifndef Q_OS_WIN
+    QString name;
+    for (int i = 0; i < 256; ++i)
+        name += 'a';
+    LocalServer server;
+    QVERIFY(!server.listen(name));
+
+    LocalSocket socket;
+    socket.connectToServer(name);
+    QCOMPARE(socket.state(), QLocalSocket::UnconnectedState);
+#endif
+}
+
+void tst_QLocalSocket::waitForDisconnect()
+{
+    QString name = "tst_localsocket";
+#ifdef Q_OS_SYMBIAN
+    unlink(name);
+#endif
+    LocalServer server;
+    QVERIFY(server.listen(name));
+    LocalSocket socket;
+    socket.connectToServer(name);
+    QVERIFY(socket.waitForConnected(3000));
+    QVERIFY(server.waitForNewConnection(3000));
+    QLocalSocket *serverSocket = server.nextPendingConnection();
+    QVERIFY(serverSocket);
+    socket.disconnectFromServer();
+    QTime timer;
+    timer.start();
+    QVERIFY(serverSocket->waitForDisconnected(3000));
+    QVERIFY(timer.elapsed() < 2000);
+}
+
+void tst_QLocalSocket::waitForDisconnectByServer()
+{
+    QString name = "tst_localsocket";
+    LocalServer server;
+    QVERIFY(server.listen(name));
+    LocalSocket socket;
+    QSignalSpy spy(&socket, SIGNAL(disconnected()));
+    QVERIFY(spy.isValid());
+    socket.connectToServer(name);
+    QVERIFY(socket.waitForConnected(3000));
+    QVERIFY(server.waitForNewConnection(3000));
+    QLocalSocket *serverSocket = server.nextPendingConnection();
+    QVERIFY(serverSocket);
+    serverSocket->close();
+    QVERIFY(serverSocket->state() == QLocalSocket::UnconnectedState);
+    QVERIFY(socket.waitForDisconnected(3000));
+    QCOMPARE(spy.count(), 1);
+}
+
+void tst_QLocalSocket::removeServer()
+{
+    // this is a hostile takeover, but recovering from a crash results in the same
+    QLocalServer server, server2;
+    QVERIFY(QLocalServer::removeServer("cleanuptest"));
+    QVERIFY(server.listen("cleanuptest"));
+#ifndef Q_OS_WIN
+    // on Windows, there can be several sockets listening on the same pipe
+    // on Unix, there can only be one socket instance
+    QVERIFY(! server2.listen("cleanuptest"));
+#endif
+    QVERIFY(QLocalServer::removeServer("cleanuptest"));
+    QVERIFY(server2.listen("cleanuptest"));
+}
+
+void tst_QLocalSocket::recycleServer()
+{
+#ifdef Q_OS_SYMBIAN
+    unlink("recycletest1");
+#endif
+
+    QLocalServer server;
+    QLocalSocket client;
+
+    QVERIFY(server.listen("recycletest1"));
+    client.connectToServer("recycletest1");
+    QVERIFY(client.waitForConnected(201));
+    QVERIFY(server.waitForNewConnection(201));
+    QVERIFY(server.nextPendingConnection() != 0);
+
+    server.close();
+    client.disconnectFromServer();
+    qApp->processEvents();
+
+    QVERIFY(server.listen("recycletest2"));
+    client.connectToServer("recycletest2");
+    QVERIFY(client.waitForConnected(202));
+    QVERIFY(server.waitForNewConnection(202));
+    QVERIFY(server.nextPendingConnection() != 0);
+}
+
+void tst_QLocalSocket::multiConnect()
+{
+    QLocalServer server;
+    QLocalSocket client1;
+    QLocalSocket client2;
+    QLocalSocket client3;
+
+    QVERIFY(server.listen("multiconnect"));
+
+    client1.connectToServer("multiconnect");
+    client2.connectToServer("multiconnect");
+    client3.connectToServer("multiconnect");
+
+    QVERIFY(client1.waitForConnected(201));
+    QVERIFY(client2.waitForConnected(202));
+    QVERIFY(client3.waitForConnected(203));
+
+    QVERIFY(server.waitForNewConnection(201));
+    QVERIFY(server.nextPendingConnection() != 0);
+    QVERIFY(server.waitForNewConnection(202));
+    QVERIFY(server.nextPendingConnection() != 0);
+    QVERIFY(server.waitForNewConnection(203));
+    QVERIFY(server.nextPendingConnection() != 0);
+}
+
+void tst_QLocalSocket::writeOnlySocket()
+{
+    QLocalServer server;
+#ifdef Q_OS_SYMBIAN
+    unlink("writeOnlySocket");
+#endif
+    QVERIFY(server.listen("writeOnlySocket"));
+
+    QLocalSocket client;
+    client.connectToServer("writeOnlySocket", QIODevice::WriteOnly);
+    QVERIFY(client.waitForConnected());
+#if defined(Q_OS_SYMBIAN)
+        QTest::qWait(250);
+#endif
+    QVERIFY(server.waitForNewConnection());
+    QLocalSocket* serverSocket = server.nextPendingConnection();
+    QVERIFY(serverSocket);
+
+    QCOMPARE(client.bytesAvailable(), qint64(0));
+    QCOMPARE(client.state(), QLocalSocket::ConnectedState);
+}
+
+void tst_QLocalSocket::writeToClientAndDisconnect()
+{
+#ifdef Q_OS_SYMBIAN
+    unlink("writeAndDisconnectServer");
+#endif
+
+    QLocalServer server;
+    QLocalSocket client;
+
+    QVERIFY(server.listen("writeAndDisconnectServer"));
+    client.connectToServer("writeAndDisconnectServer");
+    QVERIFY(client.waitForConnected(200));
+    QVERIFY(server.waitForNewConnection(200));
+    QLocalSocket* clientSocket = server.nextPendingConnection();
+    QVERIFY(clientSocket);
+
+    char buffer[100];
+    memset(buffer, 0, sizeof(buffer));
+    QCOMPARE(clientSocket->write(buffer, sizeof(buffer)), (qint64)sizeof(buffer));
+    clientSocket->waitForBytesWritten();
+    clientSocket->disconnectFromServer();
+    QVERIFY(client.waitForReadyRead());
+    QCOMPARE(client.read(buffer, sizeof(buffer)), (qint64)sizeof(buffer));
+    QVERIFY(client.waitForDisconnected());
+    QCOMPARE(client.state(), QLocalSocket::UnconnectedState);
+}
+
+void tst_QLocalSocket::debug()
+{
+    // Make sure this compiles
+    qDebug() << QLocalSocket::ConnectionRefusedError << QLocalSocket::UnconnectedState;
+}
+
+class WriteThread : public QThread
+{
+Q_OBJECT
+public:
+    void run() {
+        QLocalSocket socket;
+        socket.connectToServer("qlocalsocket_readyread");
+
+        if (!socket.waitForConnected(3000))
+            exec();
+        connect(&socket, SIGNAL(bytesWritten(qint64)), 
+        this, SLOT(bytesWritten(qint64)), Qt::QueuedConnection);
+        socket.write("testing\n");
+        exec();
+    }
+public slots:
+   void bytesWritten(qint64) {
+        exit();
+   }
+
+private:
+};
+
+/*
+    Tests the emission of the bytesWritten(qint64)
+    signal.
+
+    Create a thread that will write to a socket.
+    If the bytesWritten(qint64) signal is generated, 
+    the slot connected to it will exit the thread,
+    indicating test success.  
+
+*/
+void tst_QLocalSocket::bytesWrittenSignal()
+{
+    QLocalServer server;
+    QVERIFY(server.listen("qlocalsocket_readyread"));
+    WriteThread writeThread;
+    writeThread.start();
+    bool timedOut = false;
+    QVERIFY(server.waitForNewConnection(3000, &timedOut));
+    QVERIFY(!timedOut);
+    QTest::qWait(2000);
+    QVERIFY(writeThread.wait(2000));
+}
+
+#ifdef Q_OS_SYMBIAN
+void tst_QLocalSocket::unlink(QString name)
+{
+    if(name.length() == 0)
+        return;
+
+    QString fullName;
+    // determine the full server path
+    if (name.startsWith(QLatin1Char('/'))) {
+        fullName = name;
+    } else {
+        fullName = QDir::cleanPath(QDir::tempPath());
+        fullName += QLatin1Char('/') + name;
+        fullName = QDir::toNativeSeparators(fullName);
+    }
+
+    int result = ::unlink(fullName.toUtf8().data());
+
+    if(result != 0) {
+        qWarning() << "Unlinking " << fullName << " failed with " << strerror(errno);
+    }
+}
+#endif
+QTEST_MAIN(tst_QLocalSocket)
+#include "tst_qlocalsocket.moc"
+