tests/auto/xmlpatternsxqts/lib/ErrorHandler.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the test suite of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include <cstdio>
       
    43 
       
    44 #include <QBuffer>
       
    45 #include <QStringList>
       
    46 #include <QtDebug>
       
    47 #include <QtTest>
       
    48 #include <QtGlobal>
       
    49 #include <QXmlQuery>
       
    50 #include <QXmlResultItems>
       
    51 
       
    52 #include "ErrorHandler.h"
       
    53 
       
    54 using namespace QPatternistSDK;
       
    55 
       
    56 ErrorHandler *ErrorHandler::handler = 0;
       
    57 
       
    58 void qMessageHandler(QtMsgType type, const char *description)
       
    59 {
       
    60     if(type == QtDebugMsg)
       
    61     {
       
    62         std::fprintf(stderr, "%s\n", description);
       
    63         return;
       
    64     }
       
    65 
       
    66     QtMsgType t;
       
    67 
       
    68     switch(type)
       
    69     {
       
    70         case QtWarningMsg:
       
    71         {
       
    72             t = QtWarningMsg;
       
    73             break;
       
    74         }
       
    75         case QtCriticalMsg:
       
    76         {
       
    77             t = QtFatalMsg;
       
    78             break;
       
    79         }
       
    80         case QtFatalMsg:
       
    81         {
       
    82             /* We can't swallow Q_ASSERTs, we need to fail the hard way here.
       
    83              * But maybe not: when run from "patternistrunsingle" it could be an idea
       
    84              * to actually try to record it(but nevertheless fail somehow) such
       
    85              * that it gets reported. */
       
    86             std::fprintf(stderr, "Fatal error: %s\n", description);
       
    87             t = QtFatalMsg; /* Dummy, to silence a bogus compiler warning. */
       
    88             return;
       
    89         }
       
    90         case QtDebugMsg: /* This enum is handled above in the if-clause. */
       
    91         /* Fallthrough. */
       
    92         default:
       
    93         {
       
    94             Q_ASSERT(false);
       
    95             return;
       
    96         }
       
    97     }
       
    98 
       
    99     Q_ASSERT(ErrorHandler::handler);
       
   100     /* This message is hacky. Ideally, we should do it the same way
       
   101      * ReportContext::error() constructs messages, but this is just testing
       
   102      * code. */
       
   103     ErrorHandler::handler->message(t, QLatin1String("<p>") + QPatternist::escape(QLatin1String(description)) + QLatin1String("</p>"));
       
   104 }
       
   105 
       
   106 void ErrorHandler::installQtMessageHandler(ErrorHandler *const h)
       
   107 {
       
   108     handler = h;
       
   109 
       
   110     if(h)
       
   111         qInstallMsgHandler(qMessageHandler);
       
   112     else
       
   113         qInstallMsgHandler(0);
       
   114 }
       
   115 
       
   116 void ErrorHandler::handleMessage(QtMsgType type,
       
   117                                  const QString &description,
       
   118                                  const QUrl &identifier,
       
   119                                  const QSourceLocation &)
       
   120 {
       
   121     /* Don't use pDebug() in this function, it results in infinite
       
   122      * recursion. Talking from experience.. */
       
   123 
       
   124     Message msg;
       
   125     msg.setType(type);
       
   126     msg.setIdentifier(identifier);
       
   127 
       
   128     /* Let's remove all the XHTML markup. */
       
   129     QBuffer buffer;
       
   130     buffer.setData(description.toLatin1());
       
   131     buffer.open(QIODevice::ReadOnly);
       
   132 
       
   133     QXmlQuery query;
       
   134     query.bindVariable(QLatin1String("desc"), &buffer);
       
   135     query.setQuery(QLatin1String("string(doc($desc))"));
       
   136 
       
   137     QStringList result;
       
   138     const bool success = query.evaluateTo(&result);
       
   139 
       
   140     if(!description.startsWith(QLatin1String("\"Test-suite harness error:")))
       
   141     {
       
   142         const QString msg(QString::fromLatin1("Invalid description: %1").arg(description));
       
   143         QVERIFY2(success, qPrintable(msg));
       
   144 
       
   145         if(!success)
       
   146             QTextStream(stderr) << msg;
       
   147     }
       
   148 
       
   149 
       
   150     if(!result.isEmpty())
       
   151         msg.setDescription(result.first());
       
   152 
       
   153     m_messages.append(msg);
       
   154 }
       
   155 
       
   156 ErrorHandler::Message::List ErrorHandler::messages() const
       
   157 {
       
   158     return m_messages;
       
   159 }
       
   160 
       
   161 void ErrorHandler::reset()
       
   162 {
       
   163     m_messages.clear();
       
   164 }
       
   165 
       
   166 // vim: et:ts=4:sw=4:sts=4