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#include <QtTest/QtTest>

class tst_QGlobal: public QObject

{

    Q_OBJECT

private slots:

    void qIsNull();

    void qInternalCallbacks();

    void for_each();

    void qassert();

    void qtry();

    void checkptr();

};

void tst_QGlobal::qIsNull()

{

    double d = 0.0;

    float f = 0.0f;

    QVERIFY(::qIsNull(d));

    QVERIFY(::qIsNull(f));

    d += 0.000000001;

    f += 0.0000001f;

    QVERIFY(!::qIsNull(d));

    QVERIFY(!::qIsNull(f));

}

struct ConnectInfo {

    QObject *sender;

    QObject *receiver;

    QString signal, slot;

    int type;

    void reset() {

        sender = receiver = 0;

        signal = slot = QString();

        type = -1;

    }

} connect_info;

bool disconnect_callback(void **data)

{

    connect_info.sender = (QObject *)(data[0]);

    connect_info.receiver = (QObject *)(data[2]);

    connect_info.signal = QString::fromLatin1((const char *) data[1]);

    connect_info.slot = QString::fromLatin1((const char *) data[3]);

    return true;

}

bool connect_callback(void **data)

{

    disconnect_callback(data);

    connect_info.type = *(int *) data[4];

    return true;

}

void tst_QGlobal::qInternalCallbacks()

{

    QInternal::registerCallback(QInternal::ConnectCallback, connect_callback);

    QInternal::registerCallback(QInternal::DisconnectCallback, disconnect_callback);

    QObject a, b;

    QString signal = QLatin1String("2mysignal(x)");

    QString slot = QLatin1String("1myslot(x)");

    // Test that connect works as expected...

    connect_info.reset();

    bool ok = QObject::connect(&a, signal.toLatin1(), &b, slot.toLatin1(), Qt::AutoConnection);

    QVERIFY(ok);

    QCOMPARE(&a, connect_info.sender);

    QCOMPARE(&b, connect_info.receiver);

    QCOMPARE(signal, connect_info.signal);

    QCOMPARE(slot, connect_info.slot);

    QCOMPARE((int) Qt::AutoConnection, connect_info.type);

    // Test that disconnect works as expected

    connect_info.reset();

    ok = QObject::disconnect(&a, signal.toLatin1(), &b, slot.toLatin1());

    QVERIFY(ok);

    QCOMPARE(&a, connect_info.sender);

    QCOMPARE(&b, connect_info.receiver);

    QCOMPARE(signal, connect_info.signal);

    QCOMPARE(slot, connect_info.slot);

    // Unregister callbacks and verify that they are not triggered...

    QInternal::unregisterCallback(QInternal::ConnectCallback, connect_callback);

    QInternal::unregisterCallback(QInternal::DisconnectCallback, disconnect_callback);

    connect_info.reset();

    ok = QObject::connect(&a, signal.toLatin1(), &b, slot.toLatin1(), Qt::AutoConnection);

    QVERIFY(!ok);

    QCOMPARE(connect_info.sender, (QObject *) 0);

    ok = QObject::disconnect(&a, signal.toLatin1(), &b, slot.toLatin1());

    QVERIFY(!ok);

    QCOMPARE(connect_info.sender, (QObject *) 0);

}

void tst_QGlobal::for_each()

{

    QList<int> list;

    list << 0 << 1 << 2 << 3 << 4 << 5;

    int counter = 0;

    foreach(int i, list) {

        QCOMPARE(i, counter++);

    }

    QCOMPARE(counter, list.count());

    // do it again, to make sure we don't have any for-scoping

    // problems with older compilers

    counter = 0;

    foreach(int i, list) {

        QCOMPARE(i, counter++);

    }

    QCOMPARE(counter, list.count());

}

void tst_QGlobal::qassert()

{

    bool passed = false;

    if (false) {

        Q_ASSERT(false);

    } else {

        passed = true;

    }

    QVERIFY(passed);

    passed = false;

    if (false) {

        Q_ASSERT_X(false, "tst_QGlobal", "qassert");

    } else {

        passed = true;

    }

    QVERIFY(passed);

    passed = false;

    if (false)

        Q_ASSERT(false);

    else

        passed = true;

    QVERIFY(passed);

    passed = false;

    if (false)

        Q_ASSERT_X(false, "tst_QGlobal", "qassert");

    else

        passed = true;

    QVERIFY(passed);

}

void tst_QGlobal::qtry()

{

    int i = 0;

    QT_TRY {

        i = 1;

        QT_THROW(42);

        i = 2;

    } QT_CATCH(int) {

        QCOMPARE(i, 1);

        i = 7;

    }

#ifdef QT_NO_EXCEPTIONS

    QCOMPARE(i, 2);

#else

    QCOMPARE(i, 7);

#endif

    // check propper if/else scoping

    i = 0;

    if (true)

        QT_TRY {

            i = 2;

            QT_THROW(42);

            i = 4;

        } QT_CATCH(int) {

            QCOMPARE(i, 2);

            i = 4;

        }

    else

        QCOMPARE(i, 0);

    QCOMPARE(i, 4);

    i = 0;

    if (false)

        QT_TRY {

            i = 2;

            QT_THROW(42);

            i = 4;

        } QT_CATCH(int) {

            QCOMPARE(i, 2);

            i = 2;

        }

    else

        i = 8;

    QCOMPARE(i, 8);

    i = 0;

    if (false)

        i = 42;

    else

        QT_TRY {

            i = 2;

            QT_THROW(42);

            i = 4;

        } QT_CATCH(int) {

            QCOMPARE(i, 2);

            i = 4;

        }

    QCOMPARE(i, 4);

}

void tst_QGlobal::checkptr()

{

    int i;

    QCOMPARE(q_check_ptr(&i), &i);

    const char *c = "hello";

    QCOMPARE(q_check_ptr(c), c);

}

QTEST_MAIN(tst_QGlobal)

#include "tst_qglobal.moc"