/*

 * 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 4008296 4008293 4190090 4193729

 * @summary Check for correct handling of parameters to

 *          XXXXInputStream.read(b, off, len).

 *

 */

import java.io.*;

import java.util.zip.ZipInputStream;

import java.util.zip.InflaterInputStream;

import java.util.zip.DeflaterOutputStream;

public class ReadParams {

    /* check for correct handling of different values of off and len */

    public static void doTest(InputStream in) throws Exception {

        int off[] = {-1, -1,  0, 0, 33, 33, 0, 32, 32, 4, 1, 0,  -1,

                     Integer.MAX_VALUE, 1, Integer.MIN_VALUE,

                     Integer.MIN_VALUE, 1};

        int len[] = {-1,  0, -1, 33, 0, 4, 32, 0, 4, 16, 31, 0,

                     Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,

                     1, -1, Integer.MIN_VALUE};

        boolean results[] = { false,  false,  false, false, false, false,

                              true, true, false, true, true, true,  false,

                              false, false, false, false, false};

        int numCases = off.length;

        byte b[] = new byte[32];

        int numBad = 0;

        for(int i = 0; i < numCases; i++) {

            try {

                in.read(b , off[i] , len[i]);

            } catch (IndexOutOfBoundsException aiobe) {

                if (results[i]) {

                    System.err.println("Error:IndexOutOfBoundsException thrown"+

                                       " for read(b, " + off[i] + " " + len[i] +

                                       " ) on " + in + "\nb.length = 32");

                    numBad++;

                } else {

                    /* System.err.println("PassE: " + off[i] + " " + len[i]); */

                }

                continue;

            } catch (OutOfMemoryError ome) {

                System.err.println("Error: OutOfMemoryError in read(b, " +

                                   off[i] + " " + len[i] + " ) on " + in +

                                   "\nb.length = 32");

                numBad++;

                continue;

            }

            if (!results[i]) {

                System.err.println("Error:No IndexOutOfBoundsException thrown"+

                                   " for read(b, " + off[i] + " " + len[i] +

                                   " ) on " + in + "\nb.length = 32");

                numBad++;

            } else {

                /* System.err.println("Pass: " + off[i] + " " + len[i]); */

            }

        }

        if (numBad > 0) {

            throw new RuntimeException(in + " Failed " + numBad + " cases");

        } else {

            System.err.println("Successfully completed bounds tests on " + in);

        }

    }

    /* check for correct handling of null b */

    public static void doTest1(InputStream in) throws Exception {

        byte b[] = null;

        try {

            in.read(b, 0, 32);

        } catch (NullPointerException npe) {

            System.err.println("SuccessFully completed null b test on " + in);

            return;

        }

        throw new RuntimeException(in + " Failed null b test");

    }

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

        /* initialise stuff */

        File fn = new File("x.ReadBounds");

        FileOutputStream fout = new FileOutputStream(fn);

        for (int i = 0; i < 32; i++) {

            fout.write(i);

        }

        fout.close();

        byte b[] = new byte[64];

        for(int i = 0; i < 64; i++) {

            b[i] = 1;

        }

        /* test all input streams */

        FileInputStream fis = new FileInputStream(fn);

        doTest(fis);

        doTest1(fis);

        fis.close();

        BufferedInputStream bis =

            new BufferedInputStream(new MyInputStream(1024));

        doTest(bis);

        doTest1(bis);

        bis.close();

        ByteArrayInputStream bais = new ByteArrayInputStream(b);

        doTest(bais);

        doTest1(bais);

        bais.close();

        FileOutputStream fos = new FileOutputStream(fn);

        ObjectOutputStream oos = new ObjectOutputStream(fos);

        oos.writeInt(12345);

        oos.writeObject("Today");

        oos.writeObject(new Integer(32));

        oos.close();

        ObjectInputStream ois = new ObjectInputStream(new FileInputStream(fn));

        doTest(ois);

        doTest1(ois);

        ois.close();

        DataInputStream dis = new DataInputStream(new MyInputStream(1024));

        doTest(dis);

        doTest1(dis);

        dis.close();

        LineNumberInputStream lis =

            new LineNumberInputStream(new MyInputStream(1024));

        doTest(lis);

        doTest1(lis);

        lis.close();

        PipedOutputStream pos = new PipedOutputStream();

        PipedInputStream pis = new PipedInputStream();

        pos.connect(pis);

        pos.write(b, 0, 64);

        doTest(pis);

        doTest1(pis);

        pis.close();

        PushbackInputStream pbis =

            new PushbackInputStream(new MyInputStream(1024));

        doTest(pbis);

        doTest1(pbis);

        pbis.close();

        StringBufferInputStream sbis =

            new StringBufferInputStream(new String(b));

        doTest(sbis);

        doTest1(sbis);

        sbis.close();

        SequenceInputStream sis =

            new SequenceInputStream(new MyInputStream(1024),

                                    new MyInputStream(1024));

        doTest(sis);

        doTest1(sis);

        sis.close();

        ZipInputStream zis = new ZipInputStream(new FileInputStream(fn));

        doTest(zis);

        doTest1(zis);

        zis.close();

        byte[] data = new byte[256];

        ByteArrayOutputStream bos = new ByteArrayOutputStream();

        DeflaterOutputStream dos = new DeflaterOutputStream(bos);

        dos.write(data, 0, data.length);

        dos.close();

        InflaterInputStream ifs = new InflaterInputStream

            (new ByteArrayInputStream(bos.toByteArray()));

        doTest(ifs);

        doTest1(ifs);

        ifs.close();

        /* cleanup */

        fn.delete();

    }

}

/* An InputStream class used in the above tests */

class MyInputStream extends InputStream {

    private int readctr = 0;

    private long endoffile;

    public MyInputStream(long endoffile) {

        this.endoffile = endoffile;

    }

    public int read() {

        if (readctr == endoffile) {

            return -1;

        }

        else {

            readctr++;

            return 0;

        }

    }

    public int available() { return 0; }

}