/****************************************************************************
**
** Copyright (C) 2014 Denis Shienkov <denis.shienkov@gmail.com>
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtSerialPort module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
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** $QT_END_LICENSE$
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****************************************************************************/

#include <QtTest/QtTest>
#include <QtSerialPort/QSerialPort>
#include <QtSerialPort/QSerialPortInfo>

Q_DECLARE_METATYPE(QSerialPort::SerialPortError);
Q_DECLARE_METATYPE(QIODevice::OpenMode);
Q_DECLARE_METATYPE(QIODevice::OpenModeFlag);

class tst_QSerialPort : public QObject
{
    Q_OBJECT
public:
    explicit tst_QSerialPort();

private slots:
    void initTestCase();

    void defaultConstruct();
    void constructByName();
    void constructByInfo();

    void openExisting_data();
    void openExisting();
    void openNotExisting_data();
    void openNotExisting();

private:
    QString m_senderPortName;
    QString m_receiverPortName;
    QStringList m_availablePortNames;
};

tst_QSerialPort::tst_QSerialPort()
{
}

void tst_QSerialPort::initTestCase()
{
    m_senderPortName = QString::fromLocal8Bit(qgetenv("QTEST_SERIALPORT_SENDER"));
    m_receiverPortName = QString::fromLocal8Bit(qgetenv("QTEST_SERIALPORT_RECEIVER"));
    if (m_senderPortName.isEmpty() || m_receiverPortName.isEmpty()) {
#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
        QSKIP("Test doesn't work because the names of serial ports aren't found in env.");
#else
        QSKIP("Test doesn't work because the names of serial ports aren't set found env.", SkipAll);
#endif
    } else {
        m_availablePortNames << m_senderPortName << m_receiverPortName;
    }
}

void tst_QSerialPort::defaultConstruct()
{
    QSerialPort serialPort;

    QCOMPARE(serialPort.error(), QSerialPort::NoError);
    QVERIFY(!serialPort.errorString().isEmpty());

    // properties
    QCOMPARE(serialPort.settingsRestoredOnClose(), true);
    QCOMPARE(serialPort.baudRate(), qint32(0));
    QCOMPARE(serialPort.baudRate(QSerialPort::Input), qint32(0));
    QCOMPARE(serialPort.baudRate(QSerialPort::Output), qint32(0));
    QCOMPARE(serialPort.dataBits(), QSerialPort::Data8);
    QCOMPARE(serialPort.parity(), QSerialPort::NoParity);
    QCOMPARE(serialPort.stopBits(), QSerialPort::OneStop);
    QCOMPARE(serialPort.flowControl(), QSerialPort::NoFlowControl);

    QCOMPARE(serialPort.pinoutSignals(), QSerialPort::NoSignal);
    QCOMPARE(serialPort.isRequestToSend(), false);
    QCOMPARE(serialPort.isDataTerminalReady(), false);

    // QIODevice
    QCOMPARE(serialPort.openMode(), QIODevice::NotOpen);
    QVERIFY(!serialPort.isOpen());
    QVERIFY(!serialPort.isReadable());
    QVERIFY(!serialPort.isWritable());
    QVERIFY(serialPort.isSequential());
    QCOMPARE(serialPort.canReadLine(), false);
    QCOMPARE(serialPort.pos(), qlonglong(0));
    QCOMPARE(serialPort.size(), qlonglong(0));
    QVERIFY(serialPort.atEnd());
    QCOMPARE(serialPort.bytesAvailable(), qlonglong(0));
    QCOMPARE(serialPort.bytesToWrite(), qlonglong(0));

    char c;
    QCOMPARE(serialPort.read(&c, 1), qlonglong(-1));
    QCOMPARE(serialPort.write(&c, 1), qlonglong(-1));
}

void tst_QSerialPort::constructByName()
{
    QSerialPort serialPort(m_senderPortName);
    QCOMPARE(serialPort.portName(), m_senderPortName);
    serialPort.setPortName(m_receiverPortName);
    QCOMPARE(serialPort.portName(), m_receiverPortName);
}

void tst_QSerialPort::constructByInfo()
{
    QSerialPortInfo senderPortInfo(m_senderPortName);
    QSerialPort serialPort(senderPortInfo);
    QCOMPARE(serialPort.portName(), m_senderPortName);
    QSerialPortInfo receiverPortInfo(m_receiverPortName);
    serialPort.setPort(receiverPortInfo);
    QCOMPARE(serialPort.portName(), m_receiverPortName);
}

void tst_QSerialPort::openExisting_data()
{
    QTest::addColumn<int>("openMode");
    QTest::addColumn<bool>("openResult");
    QTest::addColumn<QSerialPort::SerialPortError>("errorCode");

    QTest::newRow("NotOpen") << int(QIODevice::NotOpen) << false << QSerialPort::UnsupportedOperationError;
    QTest::newRow("ReadOnly") << int(QIODevice::ReadOnly) << true << QSerialPort::NoError;
    QTest::newRow("WriteOnly") << int(QIODevice::WriteOnly) << true << QSerialPort::NoError;
    QTest::newRow("ReadWrite") << int(QIODevice::ReadWrite) << true << QSerialPort::NoError;
    QTest::newRow("Append") << int(QIODevice::Append) << false << QSerialPort::UnsupportedOperationError;
    QTest::newRow("Truncate") << int(QIODevice::Truncate) << false << QSerialPort::UnsupportedOperationError;
    QTest::newRow("Text") << int(QIODevice::Text) << false << QSerialPort::UnsupportedOperationError;
    QTest::newRow("Unbuffered") << int(QIODevice::Unbuffered) << false << QSerialPort::UnsupportedOperationError;
}

void tst_QSerialPort::openExisting()
{
    QFETCH(int, openMode);
    QFETCH(bool, openResult);
    QFETCH(QSerialPort::SerialPortError, errorCode);

    foreach (const QString &serialPortName, m_availablePortNames) {
        QSerialPort serialPort(serialPortName);
        QSignalSpy errorSpy(&serialPort, SIGNAL(error(QSerialPort::SerialPortError)));
        QVERIFY(errorSpy.isValid());

        QCOMPARE(serialPort.portName(), serialPortName);
        QCOMPARE(serialPort.open(QIODevice::OpenMode(openMode)), openResult);
        QCOMPARE(serialPort.isOpen(), openResult);
        QCOMPARE(serialPort.error(), errorCode);

        QCOMPARE(errorSpy.count(), 1);
        QCOMPARE(qvariant_cast<QSerialPort::SerialPortError>(errorSpy.at(0).at(0)), errorCode);
    }
}

void tst_QSerialPort::openNotExisting_data()
{
    QTest::addColumn<QString>("serialPortName");
    QTest::addColumn<bool>("openResult");
    QTest::addColumn<QSerialPort::SerialPortError>("errorCode");

    QTest::newRow("Empty") << QString("") << false << QSerialPort::DeviceNotFoundError;
    QTest::newRow("Null") << QString() << false << QSerialPort::DeviceNotFoundError;
    QTest::newRow("NotExists") << QString("ABCDEF") << false << QSerialPort::DeviceNotFoundError;
}

void tst_QSerialPort::openNotExisting()
{
    QFETCH(QString, serialPortName);
    QFETCH(bool, openResult);
    //QFETCH(QSerialPort::SerialPortError, errorCode);

    QSerialPort serialPort(serialPortName);

    QSignalSpy errorSpy(&serialPort, SIGNAL(error(QSerialPort::SerialPortError)));
    QVERIFY(errorSpy.isValid());

    QCOMPARE(serialPort.portName(), serialPortName);
    QCOMPARE(serialPort.open(QIODevice::ReadOnly), openResult);
    QCOMPARE(serialPort.isOpen(), openResult);
    //QCOMPARE(serialPort.error(), errorCode);

    //QCOMPARE(errorSpy.count(), 1);
    //QCOMPARE(qvariant_cast<QSerialPort::SerialPortError>(errorSpy.at(0).at(0)), errorCode);
}

QTEST_MAIN(tst_QSerialPort)
#include "tst_qserialport.moc"