/****************************************************************************+
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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 <QtCore/QtCore>+
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#include <QtTest/QtTest>+
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+
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#ifdef QT_NO_PROCESS+
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QTEST_NOOP_MAIN+
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#else+
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+
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#include "qbic.h"+
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+
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#include <stdlib.h>+
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+
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class tst_Bic: 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_Bic();+
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    QBic::Info getCurrentInfo(const QString &libName);+
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+
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private slots:+
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    void initTestCase_data();+
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    void initTestCase();+
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+
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    void sizesAndVTables_data();+
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    void sizesAndVTables();+
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+
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private:+
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    QBic bic;+
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};+
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+
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typedef QPair<QString, QString> QStringPair;+
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+
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tst_Bic::tst_Bic()+
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{+
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    bic.addBlacklistedClass(QLatin1String("std::*"));+
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    bic.addBlacklistedClass(QLatin1String("qIsNull*"));+
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    bic.addBlacklistedClass(QLatin1String("_*"));+
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    bic.addBlacklistedClass(QLatin1String("<anonymous*"));+
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+
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    /* some system stuff we don't care for */+
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    bic.addBlacklistedClass(QLatin1String("timespec"));+
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    bic.addBlacklistedClass(QLatin1String("itimerspec"));+
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    bic.addBlacklistedClass(QLatin1String("sched_param"));+
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    bic.addBlacklistedClass(QLatin1String("timeval"));+
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    bic.addBlacklistedClass(QLatin1String("drand"));+
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    bic.addBlacklistedClass(QLatin1String("lconv"));+
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    bic.addBlacklistedClass(QLatin1String("random"));+
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    bic.addBlacklistedClass(QLatin1String("wait"));+
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    bic.addBlacklistedClass(QLatin1String("tm"));+
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    bic.addBlacklistedClass(QLatin1String("sigcontext"));+
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    bic.addBlacklistedClass(QLatin1String("ucontext"));+
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    bic.addBlacklistedClass(QLatin1String("ucontext64"));+
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    bic.addBlacklistedClass(QLatin1String("sigaltstack"));+
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+
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    /* QtOpenGL includes qt_windows.h, and some SDKs dont have these structs present */+
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    bic.addBlacklistedClass(QLatin1String("tagTITLEBARINFO"));+
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    bic.addBlacklistedClass(QLatin1String("tagMENUITEMINFOA"));+
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    bic.addBlacklistedClass(QLatin1String("tagMENUITEMINFOW"));+
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    bic.addBlacklistedClass(QLatin1String("tagENHMETAHEADER"));+
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+
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    /* some bug in gcc also reported template instanciations */+
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    bic.addBlacklistedClass(QLatin1String("QTypeInfo<*>"));+
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    bic.addBlacklistedClass(QLatin1String("QMetaTypeId<*>"));+
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    bic.addBlacklistedClass(QLatin1String("QVector<QGradientStop>*"));+
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+
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    /* this guy is never instantiated, just for compile-time checking */+
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    bic.addBlacklistedClass(QLatin1String("QMap<*>::PayloadNode"));+
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+
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    /* QFileEngine was removed in 4.1 */+
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    bic.addBlacklistedClass(QLatin1String("QFileEngine"));+
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    bic.addBlacklistedClass(QLatin1String("QFileEngineHandler"));+
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    bic.addBlacklistedClass(QLatin1String("QFlags<QFileEngine::FileFlag>"));+
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+
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    /* Private classes */+
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    bic.addBlacklistedClass(QLatin1String("QBrushData"));+
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    bic.addBlacklistedClass(QLatin1String("QObjectData"));+
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    bic.addBlacklistedClass(QLatin1String("QAtomic"));+
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    bic.addBlacklistedClass(QLatin1String("QBasicAtomic"));+
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    bic.addBlacklistedClass(QLatin1String("QRegion::QRegionData"));+
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+
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    /* Jambi-related classes in Designer */+
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    bic.addBlacklistedClass(QLatin1String("QDesignerLanguageExtension"));+
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+
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    /* Harald says it's undocumented and private :) */+
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    bic.addBlacklistedClass(QLatin1String("QAccessibleInterfaceEx"));+
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    bic.addBlacklistedClass(QLatin1String("QAccessibleObjectEx"));+
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    bic.addBlacklistedClass(QLatin1String("QAccessibleWidgetEx"));+
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+
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    /* This structure is semi-private and should never shrink */+
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    bic.addBlacklistedClass(QLatin1String("QVFbHeader"));+
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}+
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+
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void tst_Bic::initTestCase_data()+
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{+
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    QTest::addColumn<QString>("libName");+
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+
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    QTest::newRow("QtCore") << "QtCore";+
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    QTest::newRow("QtGui") << "QtGui";+
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    QTest::newRow("QtScript") << "QtScript";+
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    QTest::newRow("QtSql") << "QtSql";+
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    QTest::newRow("QtSvg") << "QtSvg";+
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    QTest::newRow("QtNetwork") << "QtNetwork";+
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    QTest::newRow("QtOpenGL") << "QtOpenGL";+
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    QTest::newRow("QtXml") << "QtXml";+
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    QTest::newRow("QtXmlPatterns") << "QtXmlPatterns";+
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    QTest::newRow("Qt3Support") << "Qt3Support";+
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    QTest::newRow("QtTest") << "QtTest";+
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    QTest::newRow("QtDBus") << "QtDBus";+
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    QTest::newRow("QtDesigner") << "QtDesigner";+
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}+
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+
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void tst_Bic::initTestCase()+
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{+
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    QString qtDir = QString::fromLocal8Bit(qgetenv("QTDIR"));+
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    QVERIFY2(!qtDir.isEmpty(), "This test needs $QTDIR");+
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+
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    if (qgetenv("PATH").contains("teambuilder"))+
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        QTest::qWarn("This test might not work with teambuilder, consider switching it off.");+
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}+
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+
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void tst_Bic::sizesAndVTables_data()+
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{+
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#if !defined(Q_CC_GNU) || defined(Q_CC_INTEL)+
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    QSKIP("Test not implemented for this compiler/platform", SkipAll);+
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#else+
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+
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    QString archFileName400;+
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    QString archFileName410;+
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    QString archFileName420;+
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    QString archFileName430;+
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+
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#if defined Q_OS_LINUX && defined Q_WS_X11+
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# if defined(__powerpc__) && !defined(__powerpc64__)+
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    archFileName400 = SRCDIR "data/%1.4.0.0.linux-gcc-ppc32.txt";+
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    archFileName410 = SRCDIR "data/%1.4.1.0.linux-gcc-ppc32.txt";+
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    archFileName420 = SRCDIR "data/%1.4.2.0.linux-gcc-ppc32.txt";+
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# elif defined(__amd64__)+
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    archFileName400 = SRCDIR "data/%1.4.0.0.linux-gcc-amd64.txt";+
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# elif defined(__i386__)+
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    archFileName400 = SRCDIR "data/%1.4.0.0.linux-gcc-ia32.txt";+
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    archFileName410 = SRCDIR "data/%1.4.1.0.linux-gcc-ia32.txt";+
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    archFileName420 = SRCDIR "data/%1.4.2.0.linux-gcc-ia32.txt";+
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    archFileName430 = SRCDIR "data/%1.4.3.0.linux-gcc-ia32.txt";+
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# endif+
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#elif defined Q_OS_AIX+
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    if (sizeof(void*) == 4)+
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        archFileName400 = SRCDIR "data/%1.4.0.0.aix-gcc-power32.txt";+
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#elif defined Q_OS_MAC && defined(__powerpc__)+
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    archFileName400 = SRCDIR "data/%1.4.0.0.macx-gcc-ppc32.txt";+
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    archFileName410 = SRCDIR "data/%1.4.1.0.macx-gcc-ppc32.txt";+
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    archFileName420 = SRCDIR "data/%1.4.2.0.macx-gcc-ppc32.txt";+
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#elif defined Q_OS_MAC && defined(__i386__)+
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    archFileName410 = SRCDIR "data/%1.4.1.0.macx-gcc-ia32.txt";+
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    archFileName420 = SRCDIR "data/%1.4.2.0.macx-gcc-ia32.txt";+
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#elif defined Q_OS_WIN && defined Q_CC_GNU+
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    archFileName410 = SRCDIR "data/%1.4.1.0.win32-gcc-ia32.txt";+
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    archFileName420 = SRCDIR "data/%1.4.2.0.win32-gcc-ia32.txt";+
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#endif+
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+
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    if (archFileName400.isEmpty() && archFileName410.isEmpty()+
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        && archFileName420.isEmpty())+
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        QSKIP("No reference files found for this platform", SkipAll);+
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+
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    bool isPatchRelease400 = false;+
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    bool isPatchRelease410 = false;+
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    bool isPatchRelease420 = false;+
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    bool isPatchRelease430 = false;+
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+
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    QTest::addColumn<QString>("oldLib");+
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    QTest::addColumn<bool>("isPatchRelease");+
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+
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    QTest::newRow("4.0") << archFileName400 << isPatchRelease400;+
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    QTest::newRow("4.1") << archFileName410 << isPatchRelease410;+
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    QTest::newRow("4.2") << archFileName420 << isPatchRelease420;+
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    QTest::newRow("4.3") << archFileName430 << isPatchRelease430;+
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#endif+
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}+
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+
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QBic::Info tst_Bic::getCurrentInfo(const QString &libName)+
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{+
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    QTemporaryFile tmpQFile;+
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    tmpQFile.open();+
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    QString tmpFileName = tmpQFile.fileName();+
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+
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    QByteArray tmpFileContents = "#include<" + libName.toLatin1() + "/" + libName.toLatin1() + ">\n";+
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    tmpQFile.write(tmpFileContents);+
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    tmpQFile.flush();+
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+
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    QString qtDir = QString::fromLocal8Bit(qgetenv("QTDIR"));+
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#ifdef Q_OS_WIN+
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    qtDir.replace('\\', '/');+
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#endif+
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    QString compilerName = "g++";+
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+
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    QStringList args;+
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    args << "-c"+
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         << "-I" + qtDir + "/include"+
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#ifndef Q_OS_WIN+
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         << "-I/usr/X11R6/include/"+
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#endif+
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         << "-DQT_NO_STL" << "-DQT3_SUPPORT"+
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         << "-xc++"+
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#if !defined(Q_OS_AIX) && !defined(Q_OS_WIN)+
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         << "-o" << "/dev/null"+
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#endif+
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         << "-fdump-class-hierarchy"+
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         << tmpFileName;+
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+
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    QProcess proc;+
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    proc.start(compilerName, args, QIODevice::ReadOnly);+
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    if (!proc.waitForFinished(6000000)) {+
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        qWarning() << "gcc didn't finish" << proc.errorString();+
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        return QBic::Info();+
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    }+
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    if (proc.exitCode() != 0) {+
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        qWarning() << "gcc returned with" << proc.exitCode();+
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        qDebug() << proc.readAllStandardError();+
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        return QBic::Info();+
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    }+
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+
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    QString errs = QString::fromLocal8Bit(proc.readAllStandardError().constData());+
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    if (!errs.isEmpty()) {+
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        qDebug() << "Arguments:" << args << "Warnings:" << errs;+
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        return QBic::Info();+
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    }+
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+
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    // See if we find the gcc output file, which seems to change+
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    // from release to release+
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    QStringList files = QDir().entryList(QStringList() << "*.class");+
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    if (files.isEmpty()) {+
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        qFatal("Could not locate the GCC output file, update this test");+
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        return QBic::Info();+
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    } else if (files.size() > 1) {+
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        qDebug() << files;+
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        qFatal("Located more than one output file, please clean up before running this test");+
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        return QBic::Info();+
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    }+
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+
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    QString resultFileName = files.first();+
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    QBic::Info inf = bic.parseFile(resultFileName);+
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+
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    QFile::remove(resultFileName);+
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    tmpQFile.close();+
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+
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    return inf;+
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}+
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+
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void tst_Bic::sizesAndVTables()+
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{+
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#if !defined(Q_CC_GNU) || defined(Q_CC_INTEL)+
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    QSKIP("Test not implemented for this compiler/platform", SkipAll);+
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#else+
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+
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    QFETCH_GLOBAL(QString, libName);+
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    QFETCH(QString, oldLib);+
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    QFETCH(bool, isPatchRelease);+
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+
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    bool isFailed = false;+
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+
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    //qDebug() << oldLib.arg(libName);+
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    if (oldLib.isEmpty() || !QFile::exists(oldLib.arg(libName)))+
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        QSKIP("No platform spec found for this platform/version.", SkipSingle);+
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+
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    const QBic::Info oldLibInfo = bic.parseFile(oldLib.arg(libName));+
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    QVERIFY(!oldLibInfo.classVTables.isEmpty());+
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+
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    const QBic::Info currentLibInfo = getCurrentInfo(libName);+
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    QVERIFY(!currentLibInfo.classVTables.isEmpty());+
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+
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    QBic::VTableDiff diff = bic.diffVTables(oldLibInfo, currentLibInfo);+
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+
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    if (!diff.removedVTables.isEmpty()) {+
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        qWarning() << "VTables for the following classes were removed" << diff.removedVTables;+
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        isFailed = true;+
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    }+
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+
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    if (!diff.modifiedVTables.isEmpty()) {+
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        foreach(QStringPair entry, diff.modifiedVTables)+
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            qWarning() << "modified VTable:\n    Old: " << entry.first+
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                       << "\n    New: " << entry.second;+
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        isFailed = true;+
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    }+
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+
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    if (isPatchRelease && !diff.addedVTables.isEmpty()) {+
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        qWarning() << "VTables for the following classes were added in a patch release:"+
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                   << diff.addedVTables;+
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        isFailed = true;+
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    }+
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+
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    if (isPatchRelease && !diff.reimpMethods.isEmpty()) {+
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        foreach(QStringPair entry, diff.reimpMethods)+
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            qWarning() << "reimplemented virtual in patch release:\n    Old: " << entry.first+
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                       << "\n    New: " << entry.second;+
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        isFailed = true;+
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    }+
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+
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    QBic::SizeDiff sizeDiff = bic.diffSizes(oldLibInfo, currentLibInfo);+
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    if (!sizeDiff.mismatch.isEmpty()) {+
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        foreach (QString className, sizeDiff.mismatch)+
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            qWarning() << "size mismatch for" << className+
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                       << "old" << oldLibInfo.classSizes.value(className)+
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                       << "new" << currentLibInfo.classSizes.value(className);+
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        isFailed = true;+
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    }+
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+
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#ifdef Q_CC_MINGW+
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    /**+
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     * These symbols are from Windows' imm.h header, and is available+
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     * conditionally depending on the value of the WINVER define. We pull+
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     * them out since they're not relevant to the testing done.+
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     */+
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    sizeDiff.removed.removeAll(QLatin1String("tagIMECHARPOSITION"));+
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    sizeDiff.removed.removeAll(QLatin1String("tagRECONVERTSTRING"));+
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#endif+
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+
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    if (!sizeDiff.removed.isEmpty()) {+
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        qWarning() << "the following classes were removed:" << sizeDiff.removed;+
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        isFailed = true;+
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    }+
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+
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    if (isPatchRelease && !sizeDiff.added.isEmpty()) {+
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        qWarning() << "the following classes were added in a patch release:" << sizeDiff.added;+
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        isFailed = true;+
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    }+
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+
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    if (isFailed)+
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        QFAIL("Test failed, read warnings above.");+
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#endif+
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}+
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+
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QTEST_APPLESS_MAIN(tst_Bic)+
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+
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#include "tst_bic.moc"+
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#endif+
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