/*

 * Copyright (c) 1998, 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 4092350

   @summary Verify that reads and writes of primitives are correct

 */

// The bug mentioned is actually a performance bug that prompted

// changes in the methods to write primitives

import java.io.*;

import java.io.*;

public class ReadWritePrimitives {

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

        long start, finish;

        start = System.currentTimeMillis();

        testShort();

        finish = System.currentTimeMillis();

        // System.err.println("Time taken="+(finish-start));

        start = System.currentTimeMillis();

        testChar();

        finish = System.currentTimeMillis();

        // System.err.println("Time taken="+(finish-start));

        start = System.currentTimeMillis();

        testInt();

        finish = System.currentTimeMillis();

        // System.err.println("Time taken="+(finish-start));

        start = System.currentTimeMillis();

        testLong();

        finish = System.currentTimeMillis();

        // System.err.println("Time taken="+(finish-start));

    }

    private static void testShort() throws IOException {

        File fh = new File(System.getProperty("test.dir", "."),

                          "x.ReadWriteGenerated");

        RandomAccessFile f = new RandomAccessFile(fh,"rw");

        for(int i = 0; i < 10000; i++){

            f.writeShort((short)i);

        }

        f.writeShort((short)65535);

        f.close();

        f = new RandomAccessFile(fh,"r");

        for(int i = 0; i < 10000; i++) {

            short r = f.readShort();

            if (r != ((short)i)) {

                System.err.println("An error occurred. Read:" + r

                                   + " i:" + ((short)i));

                throw new IOException("Bad read from a writeShort");

            }

        }

        short rmax = f.readShort();

        if (rmax != ((short)65535)) {

            System.err.println("An error occurred. Read:" + rmax);

            throw new IOException("Bad read from a writeShort");

        }

        f.close();

    }

    private static void testChar() throws IOException {

        File fh = new File(System.getProperty("test.dir", "."),

                          "x.ReadWriteGenerated");

        RandomAccessFile f = new RandomAccessFile(fh,"rw");

        for(int i = 0; i < 10000; i++){

            f.writeChar((char)i);

        }

        f.close();

        f = new RandomAccessFile(fh,"r");

        for(int i = 0; i < 10000; i++) {

            char r = f.readChar();

            if (r != ((char)i)){

                System.err.println("An error occurred. Read:" + r

                                   + " i:" + ((char) i));

                throw new IOException("Bad read from a writeChar");

            }

        }

        f.close();

    }

    private static void testInt() throws IOException {

        File fh = new File(System.getProperty("test.dir", "."),

                          "x.ReadWriteGenerated");

        RandomAccessFile f = new RandomAccessFile(fh,"rw");

        for(int i = 0; i < 10000; i++){

            f.writeInt((short)i);

        }

        f.writeInt(Integer.MAX_VALUE);

        f.close();

        f = new RandomAccessFile(fh, "r");

        for(int i = 0; i < 10000; i++) {

            int r = f.readInt();

            if (r != i){

                System.err.println("An error occurred. Read:" + r

                                   + " i:" + i);

                throw new IOException("Bad read from a writeInt");

            }

        }

        int rmax = f.readInt();

        if (rmax != Integer.MAX_VALUE){

            System.err.println("An error occurred. Read:" + rmax);

            throw new IOException("Bad read from a writeInt");

        }

        f.close();

    }

    private static void testLong() throws IOException {

        File fh = new File(System.getProperty("test.dir", "."),

                          "x.ReadWriteGenerated");

        RandomAccessFile f = new RandomAccessFile(fh,"rw");

        for(int i = 0; i < 10000; i++){

            f.writeLong(123456789L * (long)i);

        }

        f.close();

        f = new RandomAccessFile(fh,"r");

        for(int i = 0; i < 10000; i++){

            long r = f.readLong();

            if (r != (((long) i) * 123456789L) ) {

                System.err.println("An error occurred. Read:" + r

                                   + " i" + ((long) i));

                throw new IOException("Bad read from a writeInt");

            }

        }

        f.close();

    }

}