/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the test suite of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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+
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#include <QtTest/QtTest>+
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#include <qdir.h>+
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#include <qpluginloader.h>+
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#include "theplugin/plugininterface.h"+
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+
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// Helper macros to let us know if some suffixes are valid+
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#define bundle_VALID    false+
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#define dylib_VALID     false+
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#define sl_VALID        false+
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#define a_VALID         false+
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#define so_VALID        false+
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#define dll_VALID       false+
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+
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#if defined(Q_OS_DARWIN)+
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# undef bundle_VALID+
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# undef dylib_VALID+
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# undef so_VALID+
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# define bundle_VALID   true+
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# define dylib_VALID    true+
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# define so_VALID       true+
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# define SUFFIX         ".dylib"+
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# define PREFIX         "lib"+
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+
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#elif defined(Q_OS_HPUX) && !defined(__ia64)+
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# undef sl_VALID+
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# define sl_VALID       true+
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# define SUFFIX         ".sl"+
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# define PREFIX         "lib"+
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+
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#elif defined(Q_OS_AIX)+
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# undef a_VALID+
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# undef so_VALID+
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# define a_VALID        true+
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# define so_VALID       true+
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# define SUFFIX         ".so"+
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# define PREFIX         "lib"+
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+
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#elif defined(Q_OS_WIN)+
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# undef dll_VALID+
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# define dll_VALID      true+
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# ifdef QT_NO_DEBUG+
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#  define SUFFIX         ".dll"+
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# else+
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#  define SUFFIX         "d.dll"+
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# endif+
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# define PREFIX         ""+
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+
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#elif defined(Q_OS_SYMBIAN)+
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# undef dll_VALID+
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# define dll_VALID      true+
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# define SUFFIX         ".dll"+
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# define PREFIX         ""+
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+
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#else  // all other Unix+
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# undef so_VALID+
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# define so_VALID       true+
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# define SUFFIX         ".so"+
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# define PREFIX         "lib"+
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#endif+
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+
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static QString sys_qualifiedLibraryName(const QString &fileName)+
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{+
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    QString currDir = QDir::currentPath();+
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    return currDir + "/bin/" + PREFIX + fileName + SUFFIX;+
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}+
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+
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//TESTED_CLASS=+
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//TESTED_FILES=+
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+
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QT_FORWARD_DECLARE_CLASS(QPluginLoader)+
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class tst_QPluginLoader : public QObject+
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{+
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    Q_OBJECT+
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+
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public:+
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    tst_QPluginLoader();+
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    virtual ~tst_QPluginLoader();+
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+
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private slots:+
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    void errorString();+
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    void loadHints();+
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    void deleteinstanceOnUnload();+
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    void checkingStubsFromDifferentDrives();+
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};+
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+
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tst_QPluginLoader::tst_QPluginLoader()+
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+
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{+
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}+
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+
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tst_QPluginLoader::~tst_QPluginLoader()+
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{+
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}+
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+
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//#define SHOW_ERRORS 1+
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+
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void tst_QPluginLoader::errorString()+
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{+
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#if defined(Q_OS_WINCE)+
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    // On WinCE we need an QCoreApplication object for current dir+
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    int argc = 0;+
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    QCoreApplication app(argc,0);+
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#endif+
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    const QString unknown(QLatin1String("Unknown error"));+
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+
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    {+
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    QPluginLoader loader; // default constructed+
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    bool loaded = loader.load();+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QCOMPARE(loaded, false);+
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    QCOMPARE(loader.errorString(), unknown);+
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+
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    QObject *obj = loader.instance();+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QCOMPARE(obj, static_cast<QObject*>(0));+
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    QCOMPARE(loader.errorString(), unknown);+
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+
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    bool unloaded = loader.unload();+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QCOMPARE(unloaded, false);+
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    QCOMPARE(loader.errorString(), unknown);+
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    }+
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    {+
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    QPluginLoader loader( sys_qualifiedLibraryName("mylib"));     //not a plugin+
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    bool loaded = loader.load();+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QCOMPARE(loaded, false);+
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    QVERIFY(loader.errorString() != unknown);+
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+
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    QObject *obj = loader.instance();+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QCOMPARE(obj, static_cast<QObject*>(0));+
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    QVERIFY(loader.errorString() != unknown);+
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+
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    bool unloaded = loader.unload();+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QCOMPARE(unloaded, false);+
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    QVERIFY(loader.errorString() != unknown);+
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    }+
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+
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    {+
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    QPluginLoader loader( sys_qualifiedLibraryName("nosuchfile"));     //not a file+
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    bool loaded = loader.load();+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QCOMPARE(loaded, false);+
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    QVERIFY(loader.errorString() != unknown);+
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+
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    QObject *obj = loader.instance();+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QCOMPARE(obj, static_cast<QObject*>(0));+
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    QVERIFY(loader.errorString() != unknown);+
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+
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    bool unloaded = loader.unload();+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QCOMPARE(unloaded, false);+
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    QVERIFY(loader.errorString() != unknown);+
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    }+
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+
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#if !defined Q_OS_WIN && !defined Q_OS_MAC && !defined Q_OS_HPUX && !defined Q_OS_SYMBIAN+
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    {+
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    QPluginLoader loader( sys_qualifiedLibraryName("almostplugin"));     //a plugin with unresolved symbols+
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    loader.setLoadHints(QLibrary::ResolveAllSymbolsHint);+
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    QCOMPARE(loader.load(), false);+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QVERIFY(loader.errorString() != unknown);+
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+
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    QCOMPARE(loader.instance(), static_cast<QObject*>(0));+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QVERIFY(loader.errorString() != unknown);+
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+
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    QCOMPARE(loader.unload(), false);+
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#ifdef SHOW_ERRORS+
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    qDebug() << loader.errorString();+
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#endif+
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    QVERIFY(loader.errorString() != unknown);+
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    }+
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#endif+
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+
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    {+
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    QPluginLoader loader( sys_qualifiedLibraryName("theplugin"));     //a plugin+
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    QCOMPARE(loader.load(), true);+
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    QCOMPARE(loader.errorString(), unknown);+
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+
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    QVERIFY(loader.instance() !=  static_cast<QObject*>(0));+
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    QCOMPARE(loader.errorString(), unknown);+
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+
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    // Make sure that plugin really works+
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    PluginInterface* theplugin = qobject_cast<PluginInterface*>(loader.instance());+
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    QString pluginName = theplugin->pluginName();+
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    QCOMPARE(pluginName, QLatin1String("Plugin ok"));+
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+
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    QCOMPARE(loader.unload(), true);+
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    QCOMPARE(loader.errorString(), unknown);+
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    }+
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}+
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+
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void tst_QPluginLoader::loadHints()+
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{+
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    QPluginLoader loader;+
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    QCOMPARE(loader.loadHints(), (QLibrary::LoadHints)0);   //Do not crash+
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    loader.setLoadHints(QLibrary::ResolveAllSymbolsHint);+
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    loader.setFileName( sys_qualifiedLibraryName("theplugin"));     //a plugin+
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    QCOMPARE(loader.loadHints(), QLibrary::ResolveAllSymbolsHint);+
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}+
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+
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void tst_QPluginLoader::deleteinstanceOnUnload()+
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{+
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    for (int pass = 0; pass < 2; ++pass) {+
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        QPluginLoader loader1;+
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        loader1.setFileName( sys_qualifiedLibraryName("theplugin"));     //a plugin+
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        if (pass == 0)+
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            loader1.load(); // not recommended, instance() should do the job.+
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        PluginInterface *instance1 = qobject_cast<PluginInterface*>(loader1.instance());+
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        QVERIFY(instance1);+
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        QCOMPARE(instance1->pluginName(), QLatin1String("Plugin ok"));+
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+
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        QPluginLoader loader2;+
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        loader2.setFileName( sys_qualifiedLibraryName("theplugin"));     //a plugin+
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        if (pass == 0)+
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            loader2.load(); // not recommended, instance() should do the job.+
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        PluginInterface *instance2 = qobject_cast<PluginInterface*>(loader2.instance());+
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        QCOMPARE(instance2->pluginName(), QLatin1String("Plugin ok"));+
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+
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        QSignalSpy spy1(loader1.instance(), SIGNAL(destroyed()));+
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        QSignalSpy spy2(loader2.instance(), SIGNAL(destroyed()));+
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        QCOMPARE(loader1.unload(), false);  // refcount not reached 0, not really unloaded+
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        QCOMPARE(spy1.count(), 0);+
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        QCOMPARE(spy2.count(), 0);+
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        QCOMPARE(instance1->pluginName(), QLatin1String("Plugin ok"));+
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        QCOMPARE(instance2->pluginName(), QLatin1String("Plugin ok"));+
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        QCOMPARE(loader2.unload(), true);   // refcount reached 0, did really unload+
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        QCOMPARE(spy1.count(), 1);+
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        QCOMPARE(spy2.count(), 1);+
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    }+
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}+
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+
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void tst_QPluginLoader::checkingStubsFromDifferentDrives()+
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{+
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#if defined(Q_OS_SYMBIAN)+
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+
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    // This test needs C-drive + some additional drive (driveForStubs)+
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+
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    const QString driveForStubs("E:/");// != "C:/"+
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    const QString stubDir("system/temp/stubtest/");+
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    const QString stubName("dummyStub.qtplugin");+
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    const QString fullStubFileName(stubDir + stubName);+
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    QDir dir(driveForStubs);+
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    bool test1(false); bool test2(false);+
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+
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    // initial clean up+
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    QFile::remove(driveForStubs + fullStubFileName);+
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    dir.rmdir(driveForStubs + stubDir);+
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+
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    // create a stub dir and do stub drive check+
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    if (!dir.mkpath(stubDir))+
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        QSKIP("Required drive not available for this test", SkipSingle);+
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+
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    {// test without stub, should not be found+
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    QPluginLoader loader("C:/" + fullStubFileName);+
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    test1 = !loader.fileName().length();+
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    }+
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+
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    // create a stub to defined drive+
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    QFile tempFile(driveForStubs + fullStubFileName);+
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    tempFile.open(QIODevice::ReadWrite);+
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    QFileInfo fileInfo(tempFile);+
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+
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    {// now should be found even tried to find from C:+
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    QPluginLoader loader("C:/" + fullStubFileName);+
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    test2 = (loader.fileName() == fileInfo.absoluteFilePath());+
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    }+
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+
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    // clean up+
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    tempFile.close();+
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    if (!QFile::remove(driveForStubs + fullStubFileName))+
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        QWARN("Could not remove stub file");+
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    if (!dir.rmdir(driveForStubs + stubDir))+
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        QWARN("Could not remove stub directory");+
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+
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    // test after cleanup+
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    QVERIFY(test1);+
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    QVERIFY(test2);+
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+
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#endif//Q_OS_SYMBIAN+
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}+
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+
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QTEST_APPLESS_MAIN(tst_QPluginLoader)+
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#include "tst_qpluginloader.moc"+
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