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 * This code is distributed in the hope that it will be useful, but WITHOUT

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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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/* @test

 * @bug 4313887 6838333

 * @summary Unit test for java.nio.file.attribute.DosFileAttributeView

 * @library ../..

 */

import java.nio.file.*;

import static java.nio.file.LinkOption.*;

import java.nio.file.attribute.*;

import java.util.*;

import java.io.IOException;

public class Basic {

    static void check(boolean okay) {

        if (!okay)

            throw new RuntimeException("Test failed");

    }

    // exercise each setter/getter method, leaving all attributes unset

    static void testAttributes(DosFileAttributeView view) throws IOException {

        view.setReadOnly(true);

        check(view.readAttributes().isReadOnly());

        view.setReadOnly(false);

        check(!view.readAttributes().isReadOnly());

        view.setHidden(true);

        check(view.readAttributes().isHidden());

        view.setHidden(false);

        check(!view.readAttributes().isHidden());

        view.setArchive(true);

        check(view.readAttributes().isArchive());

        view.setArchive(false);

        check(!view.readAttributes().isArchive());

        view.setSystem(true);

        check(view.readAttributes().isSystem());

        view.setSystem(false);

        check(!view.readAttributes().isSystem());

    }

    // set the value of all attributes

    static void setAll(DosFileAttributeView view, boolean value)

        throws IOException

    {

        view.setReadOnly(value);

        view.setHidden(value);

        view.setArchive(value);

        view.setSystem(value);

    }

    // read and write FAT attributes

    static void readWriteTests(Path dir) throws IOException {

        // create "foo" and test that we can read/write each FAT attribute

        Path file = Files.createFile(dir.resolve("foo"));

        try {

            testAttributes(Files.getFileAttributeView(file, DosFileAttributeView.class));

            // Following tests use a symbolic link so skip if not supported

            if (!TestUtil.supportsLinks(dir))

                return;

            Path link = dir.resolve("link");

            Files.createSymbolicLink(link, file);

            // test following links

            testAttributes(Files.getFileAttributeView(link, DosFileAttributeView.class));

            // test not following links

            try {

                try {

                    testAttributes(Files

                        .getFileAttributeView(link, DosFileAttributeView.class, NOFOLLOW_LINKS));

                } catch (IOException x) {

                    // access to link attributes not supported

                    return;

                }

                // set all attributes on link

                // run test on target of link (which leaves them all un-set)

                // check that attributes of link remain all set

                setAll(Files

                    .getFileAttributeView(link, DosFileAttributeView.class, NOFOLLOW_LINKS), true);

                testAttributes(Files

                    .getFileAttributeView(link, DosFileAttributeView.class));

                DosFileAttributes attrs =

                    Files.getFileAttributeView(link, DosFileAttributeView.class, NOFOLLOW_LINKS)

                         .readAttributes();

                check(attrs.isReadOnly());

                check(attrs.isHidden());

                check(attrs.isArchive());

                check(attrs.isSystem());

                setAll(Files

                    .getFileAttributeView(link, DosFileAttributeView.class, NOFOLLOW_LINKS), false);

                // set all attributes on target

                // run test on link (which leaves them all un-set)

                // check that attributes of target remain all set

                setAll(Files.getFileAttributeView(link, DosFileAttributeView.class), true);

                testAttributes(Files

                    .getFileAttributeView(link, DosFileAttributeView.class, NOFOLLOW_LINKS));

                attrs = Files.getFileAttributeView(link, DosFileAttributeView.class).readAttributes();

                check(attrs.isReadOnly());

                check(attrs.isHidden());

                check(attrs.isArchive());

                check(attrs.isSystem());

                setAll(Files.getFileAttributeView(link, DosFileAttributeView.class), false);

            } finally {

                TestUtil.deleteUnchecked(link);

            }

        } finally {

            TestUtil.deleteUnchecked(file);

        }

    }

    public static void main(String[] args) throws IOException {

        // create temporary directory to run tests

        Path dir = TestUtil.createTemporaryDirectory();

        try {

            // skip test if DOS file attributes not supported

            if (!Files.getFileStore(dir).supportsFileAttributeView("dos")) {

                System.out.println("DOS file attribute not supported.");

                return;

            }

            readWriteTests(dir);

        } finally {

            TestUtil.removeAll(dir);

        }

    }

}