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#include <QtTest/QtTest>

#include <QtGlobal>

#include <QtAlgorithms>

#include <QtNetwork/QHostInfo>

#ifndef QT_NO_PRINTER

#include <qprinterinfo.h>

#ifdef Q_OS_UNIX

#  include <unistd.h>

#  include <sys/types.h>

#  include <sys/wait.h>

#endif

Q_DECLARE_METATYPE(QRect)

#if defined(Q_OS_WIN32)

# define ACCEPTABLE_WINDOWS

#endif

//TESTED_CLASS=

//TESTED_FILES=

class tst_QPrinterInfo : public QObject

{

    Q_OBJECT

public:

    //tst_QPrinterInfo();

    //virtual ~tst_QPrinterInfo();

public slots:

    //void initTestCase();

    //void cleanupTestCase();

    //void init();

    //void cleanup();

private slots:

    void testForDefaultPrinter();

    void testForPrinters();

    void testForPaperSizes();

    void testConstructors();

    void testAssignment();

private:

    void macFixNameFormat(QString *printerName);

    QString getDefaultPrinterFromSystem();

    QStringList getPrintersFromSystem();

    QString getOutputFromCommand(const QStringList& command);

};

void tst_QPrinterInfo::macFixNameFormat(QString *printerName)

{

// Modify the format of the printer name to match Qt, lpstat returns

// foo___domain_no, Qt returns foo @ domain.no

#ifdef Q_WS_MAC

    printerName->replace(QLatin1String("___"), QLatin1String(" @ "));

    printerName->replace(QLatin1String("_"), QLatin1String("."));

#else

    Q_UNUSED(printerName);

#endif

}

QString tst_QPrinterInfo::getDefaultPrinterFromSystem()

{

    QStringList command;

    command << "lpstat" << "-d";

    QString output = getOutputFromCommand(command);

    QRegExp noDefaultReg("[^:]*no .*default");

    int pos = noDefaultReg.indexIn(output);

    if (pos >= 0) {

        return QString();

    }

    QRegExp defaultReg("default.*: *([a-zA-Z0-9_]+)");

    defaultReg.indexIn(output);

    QString printer = defaultReg.cap(1);

    macFixNameFormat(&printer);

    return printer;

}

QStringList tst_QPrinterInfo::getPrintersFromSystem()

{

    QStringList ans;

    QStringList command;

    command << "lpstat" << "-p";

    QString output = getOutputFromCommand(command);

    QStringList list = output.split(QChar::fromLatin1('\n'));

    QRegExp reg("^[Pp]rinter ([.a-zA-Z0-9_-]+)");

    for (int c = 0; c < list.size(); ++c) {

        if (reg.indexIn(list[c]) >= 0) {

            QString printer = reg.cap(1);

            macFixNameFormat(&printer);

            ans << printer;

        }

    }

    return ans;

}

// This function does roughly the same as the `command substitution` in

// the shell.

QString tst_QPrinterInfo::getOutputFromCommand(const QStringList& command)

{

// The command execution does nothing on non-unix systems.

#ifdef Q_OS_UNIX

    int pid;

    int status = 0;

    int pipePtr[2];

    // Create a pipe that is shared between parent and child process.

    if (pipe(pipePtr) < 0) {

        return QString();

    }

    pid = fork();

    if (pid < 0) {

        close(pipePtr[0]);

        close(pipePtr[1]);

        return QString();

    } else if (pid == 0) {

        // In child.

        // Close the reading end.

        close(pipePtr[0]);

        // Redirect stdout to the pipe.

        if (dup2(pipePtr[1], 1) < 0) {

            exit(1);

        }

        char** argv = new char*[command.size()+1];

        for (int c = 0; c < command.size(); ++c) {

            argv[c] = new char[command[c].size()+1];

            strcpy(argv[c], command[c].toLatin1().data());

        }

        argv[command.size()] = NULL;

        execvp(argv[0], argv);

        // Shouldn't get here, but it's possible if command is not found.

        close(pipePtr[1]);

        close(1);

        for (int c = 0; c < command.size(); ++c) {

            delete [] argv[c];

        }

        delete [] argv;

        exit(1);

    } else {

        // In parent.

        // Close the writing end.

        close(pipePtr[1]);

        QFile pipeRead;

        if (!pipeRead.open(pipePtr[0], QIODevice::ReadOnly)) {

            close(pipePtr[0]);

            return QString();

        }

        QByteArray array;

        array = pipeRead.readAll();

        pipeRead.close();

        close(pipePtr[0]);

        wait(&status);

        return QString(array);

    }

#else

	return QString();

#endif // Q_OS_UNIX

}

void tst_QPrinterInfo::testForDefaultPrinter()

{

#if defined(Q_OS_UNIX) || defined(ACCEPTABLE_WINDOWS)

# ifdef ACCEPTABLE_WINDOWS

    if (QHostInfo::localHostName() == "fantomet" || QHostInfo::localHostName() == "bobo") {

        QWARN("Test is hardcoded to \"fantomet\" and \"bobo\" on Windows and may fail");

    } else {

        QSKIP("Test is hardcoded to \"fantomet\" and \"bobo\" on Windows", SkipAll);

    }

    QString defSysPrinter;

    if (QHostInfo::localHostName() == "fantomet") {

        defSysPrinter = "Yacc (Lexmark Optra T610 PS3)";

    } else if (QHostInfo::localHostName() == "bobo") {

        defSysPrinter = "press";

    }

# else

    QString defSysPrinter = getDefaultPrinterFromSystem();

# endif

    if (defSysPrinter == "") return;

    QList<QPrinterInfo> list = QPrinterInfo::availablePrinters();

    bool found = false;

    for (int c = 0; c < list.size(); ++c) {

        if (list[c].isDefault()) {

            QVERIFY(list.at(c).printerName() == defSysPrinter);

            QVERIFY(!list.at(c).isNull());

            found = true;

        } else {

            QVERIFY(list.at(c).printerName() != defSysPrinter);

            QVERIFY(!list.at(c).isNull());

        }

    }

    if (!found && defSysPrinter != "") QFAIL("No default printer reported by Qt, although there is one");

#else

    QSKIP("Test doesn't work on non-Unix", SkipAll);

#endif // defined(Q_OS_UNIX) || defined(ACCEPTABLE_WINDOWS)

}

void tst_QPrinterInfo::testForPrinters()

{

#if defined(Q_OS_UNIX) || defined(ACCEPTABLE_WINDOWS)

# ifdef ACCEPTABLE_WINDOWS

    if (QHostInfo::localHostName() == "fantomet" || QHostInfo::localHostName() == "bobo") {

        QWARN("Test is hardcoded to \"fantomet\" and \"bobo\" on Windows and may fail");

    } else {

        QSKIP("Test is hardcoded to \"fantomet\" and \"bobo\" on Windows", SkipAll);

    }

    QStringList sysPrinters;

    if (QHostInfo::localHostName() == "fantomet") {

        sysPrinters

                << "Press"

                << "Canon PS-IPU Color Laser Copier v52.3"

                << "EPSON EPL-N4000 PS3"

                << "Kroksleiven"

                << "Lexmark Optra Color 1200 PS"

                << "Yacc (Lexmark Optra T610 PCL)"

                << "Yacc (Lexmark Optra T610 PS3)"

                ;

    } else if (QHostInfo::localHostName() == "bobo") {

        sysPrinters

                << "press"

                << "finnmarka"

                << "nordmarka"

                ;

    }

# else

    QStringList sysPrinters = getPrintersFromSystem();

# endif

    QList<QPrinterInfo> printers = QPrinterInfo::availablePrinters();

    QCOMPARE(printers.size(), sysPrinters.size());

    QHash<QString, bool> qtPrinters;

    for (int j = 0; j < printers.size(); ++j) {

        qtPrinters.insert(printers.at(j).printerName(), !printers.at(j).isNull());

    }

    for (int i = 0; i < sysPrinters.size(); ++i) {

        if (!qtPrinters.value(sysPrinters.at(i))) {

            qDebug() << "Avaliable printers: " << qtPrinters;

            QFAIL(qPrintable(QString("Printer '%1' reported by system, but not reported by Qt").arg(sysPrinters.at(i))));

        }

    }

#else

    QSKIP("Test doesn't work on non-Unix", SkipAll);

#endif // defined(Q_OS_UNIX) || defined(ACCEPTABLE_WINDOWS)

}

void tst_QPrinterInfo::testForPaperSizes()

{

QSKIP("PaperSize feature doesn't work on Windows, fails on Mac, and is unstable on Linux", SkipAll);

    // This test is based on common printers found at the Oslo

    // office. It is likely to be skipped or fail for other locations.

    QStringList hardPrinters;

    hardPrinters << "Finnmarka" << "Huldra";

    QList<QList<QPrinter::PaperSize> > hardSizes;

    hardSizes

            << QList<QPrinter::PaperSize>()

            << QList<QPrinter::PaperSize>()

            ;

    hardSizes[0] // Finnmarka

            << QPrinter::Letter

            << QPrinter::A4

            << QPrinter::A3

            << QPrinter::A5

            << QPrinter::B4

            << QPrinter::B5

            << QPrinter::Custom // COM10

            << QPrinter::Custom // C5

            << QPrinter::Custom // DL

            << QPrinter::Custom // Monarch

            << QPrinter::Executive

            << QPrinter::Custom // Foolscap

            << QPrinter::Custom // ISO B5

            << QPrinter::Ledger

            << QPrinter::Legal

            << QPrinter::Custom // Japanese Post Card

            << QPrinter::Custom // Invoice

            ;

    hardSizes[1] // Huldra

            << QPrinter::Custom // Not listed at http://localhost:631/, name "Custom"

            << QPrinter::Letter

            << QPrinter::A4

            << QPrinter::A5

            << QPrinter::A6

            << QPrinter::B5

            << QPrinter::Custom // #5 1/2 Envelope

            << QPrinter::Custom // 6x9 Envelope

            << QPrinter::Custom // #10 Envelope

            << QPrinter::Custom // A7 Envelope

            << QPrinter::Custom // C5 Envelope

            << QPrinter::Custom // DL Envelope

            << QPrinter::Custom // Monarch Envelope

            << QPrinter::Custom // #6 3/4 Envelope

            << QPrinter::Executive

            << QPrinter::Custom // US Folio

            << QPrinter::Custom // Index Card

            << QPrinter::Custom // ISO B5

            << QPrinter::Legal

            << QPrinter::Custom // Statement

            ;

    QList<QPrinterInfo> printers = QPrinterInfo::availablePrinters();

    for (int i = 0; i < printers.size(); ++i) {

        for (int j = 0; j < hardPrinters.size(); ++j) {

            if (printers[i].printerName() == hardPrinters[j]) {

                QList<QPrinter::PaperSize> sizes = printers[i].supportedPaperSizes();

                qSort(sizes);

                qSort(hardSizes[j]);

                QCOMPARE(sizes, hardSizes[j]);

            }

        }

    }

}

void tst_QPrinterInfo::testConstructors()

{

    QList<QPrinterInfo> prns(QPrinterInfo::availablePrinters());

    for (int c = 0; c < prns.size(); ++c) {

        QList<QPrinter::PaperSize> list1, list2;

        list1 = prns[c].supportedPaperSizes();

        QPrinter pr(prns[c]);

        list2 = QPrinterInfo(pr).supportedPaperSizes();

        QCOMPARE(list2, list1);

    }

}

void tst_QPrinterInfo::testAssignment()

{

    QList<QPrinterInfo> prns(QPrinterInfo::availablePrinters());

    for (int c = 0; c < prns.size(); ++c) {

        QPrinterInfo pi = QPrinterInfo::defaultPrinter();

        pi = prns[c];

        QCOMPARE(pi.printerName(), prns[c].printerName());

        QCOMPARE(pi.supportedPaperSizes(), prns[c].supportedPaperSizes());

    }

}

QTEST_MAIN(tst_QPrinterInfo)

#include "tst_qprinterinfo.moc"

#else

QTEST_NOOP_MAIN

#endif