/*
 *  Copyright (C) 2006 David Faure   <faure@kde.org>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License version 2 as published by the Free Software Foundation;
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 */

#include "kmountpointtest.h"
#include <qtest_kde.h>
#include "kmountpointtest.moc"

#include "kmountpoint.h"
#include <kdebug.h>
#include <kde_file.h>
#include <sys/stat.h>

QTEST_KDEMAIN_CORE( KMountPointTest )

void KMountPointTest::initTestCase()
{

}

void KMountPointTest::testCurrentMountPoints()
{
    const KMountPoint::List mountPoints = KMountPoint::currentMountPoints(KMountPoint::NeedRealDeviceName);
    if (mountPoints.isEmpty()) { // can happen in chroot jails. TODO: we could parse /proc/self/mountinfo instead....
        QSKIP("mtab is empty", SkipAll);
        return;
    }
    KMountPoint::Ptr mountWithDevice;
    foreach(KMountPoint::Ptr mountPoint, mountPoints) {
        kDebug() << "Mount: " << mountPoint->mountedFrom()
          << " (" << mountPoint->realDeviceName() << ") "
          << mountPoint->mountPoint() << " " << mountPoint->mountType() << endl;
        QVERIFY(!mountPoint->mountedFrom().isEmpty());
        QVERIFY(!mountPoint->mountPoint().isEmpty());
        QVERIFY(!mountPoint->mountType().isEmpty());
        // old bug, happened because KMountPoint called KStandardDirs::realPath instead of realFilePath
        if (mountPoint->realDeviceName().startsWith("/dev")) { // skip this check for cifs mounts for instance
            QVERIFY(!mountPoint->realDeviceName().endsWith('/'));
        }

        // keep one (any) mountpoint with a device name for the test below
        if (!mountPoint->realDeviceName().isEmpty() && !mountWithDevice) {
            mountWithDevice = mountPoint;
        }
    }

    QVERIFY(mountWithDevice);

    // Check findByDevice
    KMountPoint::Ptr found = mountPoints.findByDevice(mountWithDevice->mountedFrom());
    QVERIFY(found);
    QCOMPARE(found->mountPoint(), mountWithDevice->mountPoint());
    found = mountPoints.findByDevice("/I/Dont/Exist"); // krazy:exclude=spelling
    QVERIFY(!found);

    // Check findByPath
#ifdef Q_OS_UNIX
    const KMountPoint::Ptr rootMountPoint = mountPoints.findByPath("/");
    QVERIFY(rootMountPoint);
    QCOMPARE(rootMountPoint->mountPoint(), QString("/"));
    QVERIFY(!rootMountPoint->probablySlow());

    KDE_struct_stat rootStatBuff;
    QCOMPARE( KDE_stat( "/", &rootStatBuff ), 0 );
    KDE_struct_stat homeStatBuff;
    if ( KDE_stat( "/home", &homeStatBuff ) == 0 ) {
        bool sameDevice = rootStatBuff.st_dev == homeStatBuff.st_dev;
        const KMountPoint::Ptr homeMountPoint = mountPoints.findByPath("/home");
        QVERIFY(homeMountPoint);
        //kDebug() << "Checking the home mount point, sameDevice=" << sameDevice;
        if (sameDevice)
            QCOMPARE(homeMountPoint->mountPoint(), QString("/"));
        else
            QCOMPARE(homeMountPoint->mountPoint(), QString("/home"));
    } else {
        kDebug() << "/home doesn't seem to exist, skipping test";
    }
#endif
}

void KMountPointTest::testPossibleMountPoints()
{
    const KMountPoint::List mountPoints = KMountPoint::possibleMountPoints(KMountPoint::NeedRealDeviceName|KMountPoint::NeedMountOptions);
    if (mountPoints.isEmpty()) { // can happen in chroot jails
        QSKIP("fstab is empty", SkipAll);
        return;
    }
    KMountPoint::Ptr mountWithDevice;
    foreach(KMountPoint::Ptr mountPoint, mountPoints) {
        kDebug() << "Possible mount: " << mountPoint->mountedFrom()
          << " (" << mountPoint->realDeviceName() << ") "
          << mountPoint->mountPoint() << " " << mountPoint->mountType()
                 << " options:" << mountPoint->mountOptions() << endl;
        QVERIFY(!mountPoint->mountedFrom().isEmpty());
        QVERIFY(!mountPoint->mountPoint().isEmpty());
        QVERIFY(!mountPoint->mountType().isEmpty());
        QVERIFY(!mountPoint->mountOptions().isEmpty());
        // old bug, happened because KMountPoint called KStandardDirs::realPath instead of realFilePath
        QVERIFY(!mountPoint->realDeviceName().endsWith('/'));

        // keep one (any) mountpoint with a device name for the test below
        if (!mountPoint->realDeviceName().isEmpty())
            mountWithDevice = mountPoint;
    }

    QVERIFY(mountWithDevice);

#ifdef Q_OS_UNIX
    const KMountPoint::Ptr rootMountPoint = mountPoints.findByPath("/");
    QVERIFY(rootMountPoint);
    QCOMPARE(rootMountPoint->mountPoint(), QString("/"));
    QVERIFY(rootMountPoint->realDeviceName().startsWith(QLatin1String("/dev"))); // portable?
    QVERIFY(!rootMountPoint->mountOptions().contains("noauto")); // how would this work?
    QVERIFY(!rootMountPoint->probablySlow());
#endif
}