/*

 * Copyright 1999-2003 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/* @test

   @summary Make sure we can read a zip file.

 */

import java.io.*;

import java.util.zip.*;

public class ReadZip {

    private static void unreached (Object o)

        throws Exception

    {

        // Should never get here

        throw new Exception ("Expected exception was not thrown");

    }

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

        ZipFile zf = new ZipFile(new File(System.getProperty("test.src", "."),

                                          "input.zip"));

        // Make sure we throw NPE on null objects

        try { unreached (zf.getEntry(null)); }

        catch (NullPointerException e) {}

        try { unreached (zf.getInputStream(null)); }

        catch (NullPointerException e) {}

        ZipEntry ze = zf.getEntry("ReadZip.java");

        if (ze == null) {

            throw new Exception("cannot read from zip file");

        }

        zf.close();

        // Make sure we can read the zip file that has some garbage

        // bytes padded at the end.

        FileInputStream fis = new FileInputStream(

                                   new File(System.getProperty("test.src", "."),

                                            "input.zip"));

                               "input2.zip");

        FileOutputStream fos = new FileOutputStream(newZip);

        byte[] buf = new byte[1024];

        int n = 0;

        while ((n = fis.read(buf)) != -1) {

            fos.write(buf, 0, n);

        }

        fis.close();

        // pad some bytes

        fos.write(1); fos.write(3); fos.write(5); fos.write(7);

        fos.close();

        try {

            zf = new ZipFile(newZip);

            ze = zf.getEntry("ReadZip.java");

            if (ze == null) {

                throw new Exception("cannot read from zip file");

            }

        } finally {

            zf.close();

            newZip.delete();

        }

        // Read zip file comment

        try {

            ZipOutputStream zos = new ZipOutputStream(

                                      new FileOutputStream(newZip));

            ze = new ZipEntry("ZipEntry");

            zos.putNextEntry(ze);

            zos.write(1); zos.write(2); zos.write(3); zos.write(4);

            zos.closeEntry();

            zos.setComment("This is the comment for testing");

            zos.close();

            zf = new ZipFile(newZip);

            ze = zf.getEntry("ZipEntry");

            if (ze == null)

                throw new Exception("cannot read entry from zip file");

            if (!"This is the comment for testing".equals(zf.getComment()))

                throw new Exception("cannot read comment from zip file");

        } finally {

            zf.close();

            newZip.delete();

        }

        // Throw a FNF exception when read a non-existing zip file

        try { unreached (new ZipFile(

                             new File(System.getProperty("test.src", "."),

                                     "input"

                                      + String.valueOf(new java.util.Random().nextInt())

                                      + ".zip")));

        } catch (FileNotFoundException fnfe) {}

    }

}