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#include <QtTest/QtTest>

#include <QWidget>

#include <qtranslator.h>

#include <qfile.h>

//TESTED_CLASS=

//TESTED_FILES=

class tst_QTranslator : public QWidget

{

    Q_OBJECT

public:

    tst_QTranslator();

    virtual ~tst_QTranslator();

public slots:

    void init();

    void cleanup();

protected:

    bool event(QEvent *event);

private slots:

    void load();

    void load2();

    void threadLoad();

    void testLanguageChange();

    void plural();

    void translate_qm_file_generated_with_msgfmt();

private:

    int languageChangeEventCounter;

};

tst_QTranslator::tst_QTranslator()

    : languageChangeEventCounter(0)

{

    show();

    hide();

}

tst_QTranslator::~tst_QTranslator()

{

}

void tst_QTranslator::init()

{

}

void tst_QTranslator::cleanup()

{

}

bool tst_QTranslator::event(QEvent *event)

{

    if (event->type() == QEvent::LanguageChange)

        ++languageChangeEventCounter;

    return QWidget::event(event);

}

void tst_QTranslator::load()

{

    QTranslator tor( 0 );

    tor.load("hellotr_la");

    QVERIFY(!tor.isEmpty());

    QCOMPARE(tor.translate("QPushButton", "Hello world!"), QString::fromLatin1("Hallo Welt!"));

}

void tst_QTranslator::load2()

{

    QTranslator tor( 0 );

    QFile file("hellotr_la.qm");

    file.open(QFile::ReadOnly);

    QByteArray data = file.readAll();

    tor.load((const uchar *)data.constData(), data.length());

    QVERIFY(!tor.isEmpty());

    QCOMPARE(tor.translate("QPushButton", "Hello world!"), QString::fromLatin1("Hallo Welt!"));

}

class TranslatorThread : public QThread

{

    void run() {

        QTranslator tor( 0 );

        tor.load("hellotr_la");

        if (tor.isEmpty())

            qFatal("Could not load translation");

        if (tor.translate("QPushButton", "Hello world!") !=  QString::fromLatin1("Hallo Welt!"))

            qFatal("Test string was not translated correctlys");

    }

};

void tst_QTranslator::threadLoad()

{

    TranslatorThread thread;

    thread.start();

    QVERIFY(thread.wait(10 * 1000));

}

void tst_QTranslator::testLanguageChange()

{

    languageChangeEventCounter = 0;

    QTranslator *tor = new QTranslator;

    tor->load("hellotr_la.qm");

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 0);

    tor->load("doesn't exist, same as clearing");

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 0);

    tor->load("hellotr_la.qm");

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 0);

    qApp->installTranslator(tor);

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 1);

    tor->load("doesn't exist, same as clearing");

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 2);

    tor->load("hellotr_la.qm");

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 3);

    qApp->removeTranslator(tor);

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 4);

    tor->load("doesn't exist, same as clearing");

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 4);

    qApp->installTranslator(tor);

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 4);

    tor->load("hellotr_la.qm");

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 5);

    delete tor;

    tor = 0;

    qApp->sendPostedEvents();

    qApp->sendPostedEvents();

    QCOMPARE(languageChangeEventCounter, 6);

}

void tst_QTranslator::plural()

{

    QTranslator tor( 0 );

    tor.load("hellotr_la");

    QVERIFY(!tor.isEmpty());

    QCoreApplication::installTranslator(&tor);

    QCoreApplication::Encoding e = QCoreApplication::UnicodeUTF8;

    QCOMPARE(QCoreApplication::translate("QPushButton", "Hello %n world(s)!", 0, e, 0), QString::fromLatin1("Hallo 0 Welten!"));

    QCOMPARE(QCoreApplication::translate("QPushButton", "Hello %n world(s)!", 0, e, 1), QString::fromLatin1("Hallo 1 Welt!"));

    QCOMPARE(QCoreApplication::translate("QPushButton", "Hello %n world(s)!", 0, e, 2), QString::fromLatin1("Hallo 2 Welten!"));

}

void tst_QTranslator::translate_qm_file_generated_with_msgfmt()

{

    QTranslator translator;

    translator.load("msgfmt_from_po");

    qApp->installTranslator(&translator);

    QCOMPARE(QCoreApplication::translate("", "Intro"), QLatin1String("Einleitung"));

    // The file is converted from a po file, thus it does not have any context info.

    // The following should then not be translated

    QCOMPARE(QCoreApplication::translate("contekst", "Intro"), QLatin1String("Intro"));

    QCOMPARE(QCoreApplication::translate("contekst", "Intro\0\0"), QLatin1String("Intro"));

    QCOMPARE(QCoreApplication::translate("contekst", "Intro\0x"), QLatin1String("Intro"));

    QCOMPARE(QCoreApplication::translate("", "Intro\0\0"), QLatin1String("Einleitung"));

    QCOMPARE(QCoreApplication::translate("", "Intro\0x"), QLatin1String("Einleitung"));

    qApp->removeTranslator(&translator);

}

QTEST_MAIN(tst_QTranslator)

#include "tst_qtranslator.moc"