/*

 * Copyright (c) 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

 * @summary Check that error cases are replaced correctly in String/ISR/OSW

 * @bug 4457851 7096080

 *

 * @build Errors Util

 * @run main Errors

 */

import java.io.*;

import java.nio.*;

public class Errors {

    static PrintStream log = System.err;

    static int failures = 0;

    static final byte Q = (byte)'?';

    static final byte X = (byte)'x';

    static final byte Y = (byte)'y';

    static final byte Z = (byte)'z';

    static abstract class Test {

        protected final String csn;

        protected final String what;

        Test(String csn, String what) {

            this.csn = csn;

            this.what = what;

        }

        abstract byte[] enc(String s) throws IOException;

        Test test(String s, byte[] ref) {

            log.print("  " + Util.toString(s.toCharArray()));

            byte[] ba = null;

            try {

                ba = enc(s);

            } catch (IOException x) {

                log.println(" -e-> ERROR: " + x.getClass().getName());

                failures++;

                return this;

            }

            log.println(" -e-> " + Util.toString(ba));

            int i = Util.cmp(ba, ref);

            if (i >= 0) {

                log.println("    ERROR: Mismatch at index " + i

                            + ", expected: " + Util.toString(ref));

                failures++;

            }

            return this;

        }

        abstract String dec(byte[] ba) throws IOException;

        Test test(byte[] ba, String ref) {

            log.print("  " + Util.toString(ba));

            String s = null;

            try {

                s = dec(ba);

            } catch (IOException x) {

                log.println(" -d-> ERROR: " + x.getClass().getName());

                failures++;

                return this;

            }

            log.println(" -d-> " + Util.toString(s.toCharArray()));

            char[] ca = s.toCharArray();

            char[] refa = ref.toCharArray();

            int i = Util.cmp(ca, refa);

            if (i >= 0) {

                log.println("    ERROR: Mismatch at index " + i

                            + ", expected: " + Util.toString(refa));

                failures++;

            }

            return this;

        }

        Test run() {

            log.println(csn + ", " + what);

            test("xyzzy", new byte[] { X, Y, Z, Z, Y });

            // Malformed surrogates

            test("\uD800x", new byte[] { Q, X });

            test("\uDC00x", new byte[] { Q, X });

            test("\uD800\uDB00x", new byte[] { Q, Q, X });

            return this;

        }

    }

    static class TestStream extends Test {

        TestStream(String csn) {

            super(csn, "I/O streams");

        }

        byte[] enc(String s) throws IOException {

            ByteArrayOutputStream bos = new ByteArrayOutputStream();

            Writer wr = new OutputStreamWriter(bos, csn);

            wr.write(s);

            wr.close();

            return bos.toByteArray();

        }

        String dec(byte[] ba) throws IOException {

            ByteArrayInputStream bis = new ByteArrayInputStream(ba);

            Reader rd = new InputStreamReader(bis, csn);

            char[] ca = new char[1024];

            int n = rd.read(ca);

            String s = new String(ca, 0, n);

            rd.close();

            return s;

        }

    }

    static class TestString extends Test {

        TestString(String csn) {

            super(csn, "strings");

        }

        byte[] enc(String s) throws IOException {

            return s.getBytes(csn);

        }

        String dec(byte[] ba) throws IOException {

            return new String(ba, 0, ba.length, csn);

        }

    }

    static void test_US_ASCII(Test t) {

        t.run();

        t.test("\u0080", new byte[] { Q });

        t.test("\u0100", new byte[] { Q });

        t.test("\uD800\uDC00", new byte[] { Q });

        t.test("\uF000", new byte[] { Q });

        t.test("\uFFFE", new byte[] { Q });

        t.test("\uFFFF", new byte[] { Q });

        t.test(new byte[] { X, (byte)0x7f, Y }, "x\u007Fy");

        t.test(new byte[] { X, (byte)0x80, Y }, "x\uFFFDy");

        t.test(new byte[] { (byte)0xf0, (byte)0xf0 }, "\uFFFD\uFFFD");

    }

    static void test_ISO_8859_1(Test t) {

        t.run();

        t.test("\u0080", new byte[] { (byte)0x80 });

        t.test("\u0100", new byte[] { Q });

        t.test("\uD800\uDC00x", new byte[] { Q, X });

        t.test("\uF000", new byte[] { Q });

        t.test("\uFFFE", new byte[] { Q });

        t.test("\uFFFF", new byte[] { Q });

        t.test(new byte[] { X, (byte)0x7f, Y }, "x\u007Fy");

        t.test(new byte[] { X, (byte)0x80, Y }, "x\u0080y");

        t.test(new byte[] { (byte)0xf0, (byte)0xf0 }, "\u00F0\u00F0");

    }

    static void test_UTF_8(Test t) {

        t.run();

        t.test("\u0080", new byte[] { (byte)0xC2, (byte)0x80 });

        t.test("\u0100", new byte[] { (byte)0xC4, (byte)0x80 });

        t.test("\uD800\uDC00",

               new byte[] { (byte)0xF0, (byte)0x90, (byte)0x80, (byte)0x80 });

        t.test("\uF000", new byte[] { (byte)0xEF, (byte)0x80, (byte)0x80 });

        t.test("\uFFFE", new byte[] { (byte)0xEF, (byte)0xBF, (byte)0xBE });

        t.test("\uFFFF", new byte[] { (byte)0xEF, (byte)0xBF, (byte)0xBF });

        t.test(new byte[] { X, (byte)0x7f, Y }, "x\u007Fy");

        t.test(new byte[] { X, (byte)0x80, Y }, "x\uFFFDy");

    }

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

        test_US_ASCII(new TestString("US-ASCII"));

        test_US_ASCII(new TestStream("US-ASCII"));

        test_ISO_8859_1(new TestString("ISO-8859-1"));

        test_ISO_8859_1(new TestStream("ISO-8859-1"));

        test_ISO_8859_1(new TestString("ISO-8859-15"));

        test_ISO_8859_1(new TestStream("ISO-8859-15"));

        test_UTF_8(new TestString("UTF-8"));

        test_UTF_8(new TestStream("UTF-8"));

        if (failures > 0) {

            log.println();

            throw new Exception("Tests failed: " + failures);

        }

    }

}