/****************************************************************************
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** All rights reserved.
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** This file is part of the test suite of the Qt Toolkit.
**
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** General Public License version 2.1 as published by the Free Software
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** 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
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****************************************************************************/
#include <QtTest/QtTest>

class tst_QFlags: public QObject
{
    Q_OBJECT
private slots:
    void testFlag() const;
    void testFlagZeroFlag() const;
    void testFlagMultiBits() const;
};

void tst_QFlags::testFlag() const
{
    Qt::MouseButtons btn = Qt::LeftButton | Qt::RightButton;

    QVERIFY(btn.testFlag(Qt::LeftButton));
    QVERIFY(!btn.testFlag(Qt::MidButton));

    btn = 0;
    QVERIFY(!btn.testFlag(Qt::LeftButton));
}

void tst_QFlags::testFlagZeroFlag() const
{
    {
        Qt::MouseButtons btn = Qt::LeftButton | Qt::RightButton;
        /* Qt::NoButton has the value 0. */

        QVERIFY(!btn.testFlag(Qt::NoButton));
    }

    {
        /* A zero enum set should test true with zero. */
        QVERIFY(Qt::MouseButtons().testFlag(Qt::NoButton));
    }

    {
        Qt::MouseButtons btn = Qt::NoButton;
        QVERIFY(btn.testFlag(Qt::NoButton));
    }
}

void tst_QFlags::testFlagMultiBits() const
{
    /* Qt::Window is 0x00000001
     * Qt::Dialog is 0x00000002 | Window
     */
    {
        const Qt::WindowFlags onlyWindow(Qt::Window);
        QVERIFY(!onlyWindow.testFlag(Qt::Dialog));
    }

    {
        const Qt::WindowFlags hasDialog(Qt::Dialog);
        QVERIFY(hasDialog.testFlag(Qt::Dialog));
    }
}

QTEST_MAIN(tst_QFlags)
#include "tst_qflags.moc"