/*

 * Copyright (c) 2005, 2010, 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 4997655 7000913

 * @summary (bf) CharBuffer.slice() on wrapped CharSequence results in wrong position

 */

import java.nio.*;

public class StringCharBufferSliceTest {

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

        System.out.println(

            ">>> StringCharBufferSliceTest-main: testing the slice method...");

        final String in = "for testing";

        System.out.println(

            ">>> StringCharBufferSliceTest-main: testing with the position 0.");

        CharBuffer buff = CharBuffer.wrap(in);

        test(buff, buff.slice());

        System.out.println(

            ">>> StringCharBufferSliceTest-main: testing with new position.");

        buff.position(2);

        test(buff, buff.slice());

        System.out.println(

          ">>> StringCharBufferSliceTest-main: testing with non zero initial position.");

        buff = CharBuffer.wrap(in, 3, in.length());

        test(buff, buff.slice());

        System.out.println(

            ">>> StringCharBufferSliceTest-main: testing slice result with get()");

        buff.position(4);

        buff.limit(7);

        CharBuffer slice = buff.slice();

        for (int i = 0; i < 3; i++) {

            if (slice.get() != buff.get()) {

                throw new RuntimeException("Wrong characters in slice result.");

            }

        }

        System.out.println(

            ">>> StringCharBufferSliceTest-main: testing slice result with get(int)");

        buff.position(4);

        buff.limit(7);

        slice = buff.slice();

        for (int i = 0; i < 3; i++) {

            if (slice.get(i) != buff.get(4 + i)) {

                throw new RuntimeException("Wrong characters in slice result.");

            }

        }

        System.out.println(

          ">>> StringCharBufferSliceTest-main: testing slice with result of slice");

        buff.position(0);

        buff.limit(buff.capacity());

        slice = buff.slice();

        for (int i=0; i<4; i++) {

            slice.position(i);

            CharBuffer nextSlice = slice.slice();

            if (nextSlice.position() != 0)

                throw new RuntimeException("New buffer's position should be zero");

            if (!nextSlice.equals(slice))

                throw new RuntimeException("New buffer should be equal");

            slice = nextSlice;

        }

        System.out.println(

          ">>> StringCharBufferSliceTest-main: testing toString.");

        buff.position(4);

        buff.limit(7);

        slice = buff.slice();

        if (!slice.toString().equals("tes")) {

            throw new RuntimeException("bad toString() after slice(): " + slice.toString());

        }

        System.out.println(

          ">>> StringCharBufferSliceTest-main: testing subSequence.");

        buff.position(4);

        buff.limit(8);

        slice = buff.slice();

        CharSequence subSeq = slice.subSequence(1, 3);

        if (subSeq.charAt(0) != 'e' || subSeq.charAt(1) != 's') {

            throw new RuntimeException("bad subSequence() after slice(): '" + subSeq + "'");

        }

        System.out.println(

          ">>> StringCharBufferSliceTest-main: testing duplicate.");

        buff.position(4);

        buff.limit(8);

        slice = buff.slice();

        CharBuffer dupe = slice.duplicate();

        if (dupe.charAt(0) != 't' || dupe.charAt(1) != 'e'

            || dupe.charAt(2) != 's' || dupe.charAt(3) != 't') {

            throw new RuntimeException("bad duplicate() after slice(): '" + dupe + "'");

        }

        System.out.println(">>> StringCharBufferSliceTest-main: done!");

    }

    public static void test(CharBuffer buff, CharBuffer slice) throws RuntimeException {

        boolean marked = false;

        try {

            slice.reset();

            marked = true;

        } catch (InvalidMarkException ime) {

            // expected

        }

        if (marked ||

            slice.position() != 0 ||

            buff.remaining() != slice.limit() ||

            buff.remaining() != slice.capacity()) {

            throw new RuntimeException(

                 "Calling the CharBuffer.slice method failed.");

        }

    }

}