/*

 * Copyright (c) 1998, 2017, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * 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.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/* @test

 * @bug 4165666 4203706 4288670 4290024

 * @summary Basic heartbeat test for File methods that access the filesystem

 * @build Basic Util

 * @run main/othervm Basic

 */

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.File;

import java.io.PrintStream;

import java.io.RandomAccessFile;

public class Basic {

    static PrintStream out = System.err;

    static File rwFile = new File("x.Basic.rw");

    static File bigFile = new File("x.Basic.big");

    static File roFile = new File("x.Basic.ro");

    static File thisDir = new File(".");

    static File dir = new File("x.Basic.dir");

    static File dir2 = new File("x.Basic.dir2");

    static byte bytes[] = new byte[] {1, 2, 3, 4, 5, 6};

    static void showBoolean(String what, boolean value) {

        out.println("  " + what + ": " + value);

    }

    static void showLong(String what, long value) {

        out.println("  " + what + ": " + value);

    }

    static void show(File f) throws Exception {

        out.println(f + ": ");

        showBoolean("exists", f.exists());

        showBoolean("isFile", f.isFile());

        showBoolean("isDirectory", f.isDirectory());

        showBoolean("canRead", f.canRead());

        showBoolean("canWrite", f.canWrite());

        showLong("lastModified", f.lastModified());

        showLong("length", f.length());

    }

    static void testFile(File f, boolean writeable, long length)

        throws Exception

    {

        if (!f.exists()) fail(f, "does not exist");

        if (!f.isFile()) fail(f, "is not a file");

        if (f.isDirectory()) fail(f, "is a directory");

        if (!f.canRead()) fail(f, "is not readable");

        if (!Util.isPrivileged() && f.canWrite() != writeable)

            fail(f, writeable ? "is not writeable" : "is writeable");

        if (f.length() != length) fail(f, "has wrong length");

    }

    static void fail(File f, String why) throws Exception {

        throw new Exception(f + " " + why);

    }

    static void setup() throws Exception {

        rwFile.delete();

        bigFile.delete();

        roFile.delete();

        thisDir.delete();

        dir.delete();

        dir2.delete();

        try (FileOutputStream fos = new FileOutputStream(rwFile)) {

            fos.write(bytes);

        }

        roFile.createNewFile();

        roFile.setReadOnly();

    }

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

        setup();

        show(rwFile);

        testFile(rwFile, true, bytes.length);

        rwFile.delete();

        if (rwFile.exists()) {

            fail(rwFile, "could not delete");

        }

        show(roFile);

        testFile(roFile, false, 0);

        show(thisDir);

        if (!thisDir.exists()) fail(thisDir, "does not exist");

        if (thisDir.isFile()) fail(thisDir, "is a file");

        if (!thisDir.isDirectory()) fail(thisDir, "is not a directory");

        if (!thisDir.canRead()) fail(thisDir, "is readable");

        if (!thisDir.canWrite()) fail(thisDir, "is writeable");

        String[] fs = thisDir.list();

        if (fs == null) fail(thisDir, "list() returned null");

        out.print("  [" + fs.length + "]");

        for (int i = 0; i < fs.length; i++) {

            out.print(" " + fs[i]);

        }

        out.println();

        if (fs.length == 0) fail(thisDir, "is empty");

        if (!dir.mkdir() || !dir.exists() || !dir.isDirectory()) {

            fail(dir, "could not create");

        }

        if (!dir.renameTo(dir2)) {

            fail(dir, "failed to rename");

        }

        if (dir.exists() || !dir2.exists() || !dir2.isDirectory()) {

            fail(dir, "not renamed");

        }

        if (System.getProperty("os.name").equals("SunOS")

            && System.getProperty("os.version").compareTo("5.6") >= 0) {

            if (bigFile.exists()) {

                bigFile.delete();

                if (bigFile.exists())

                    fail(bigFile, "could not delete");

            }

            RandomAccessFile raf = new RandomAccessFile(bigFile, "rw");

            long big = ((long)Integer.MAX_VALUE) * 2;

            try {

                raf.seek(big);

                raf.write('x');

                show(bigFile);

                testFile(bigFile, true, big + 1);

            } finally {

                raf.close();

            }

            bigFile.delete();

            if (bigFile.exists())

                fail(bigFile, "could not delete");

        } else {

            System.err.println("NOTE: Large files not supported on this system");

        }

    }

}