jdk/test/java/time/tck/java/time/chrono/TCKChronologySerialization.java

/*
 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
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/*
 * Copyright (c) 2013, Stephen Colebourne & Michael Nascimento Santos
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 *  * Neither the name of JSR-310 nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package tck.java.time.chrono;

import static org.testng.Assert.assertEquals;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.PrintStream;
import java.time.chrono.Chronology;
import java.time.chrono.HijrahChronology;
import java.time.chrono.IsoChronology;
import java.time.chrono.JapaneseChronology;
import java.time.chrono.MinguoChronology;
import java.time.chrono.ThaiBuddhistChronology;

import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

public class TCKChronologySerialization {

    //-----------------------------------------------------------------------
    // regular data factory for names and descriptions of available calendars
    //-----------------------------------------------------------------------
    @DataProvider(name = "calendars")
    Chronology[][] data_of_calendars() {
        return new Chronology[][]{
                    {HijrahChronology.INSTANCE},
                    {IsoChronology.INSTANCE},
                    {JapaneseChronology.INSTANCE},
                    {MinguoChronology.INSTANCE},
                    {ThaiBuddhistChronology.INSTANCE}};
    }

    //-----------------------------------------------------------------------
    // Test Serialization of Calendars
    //-----------------------------------------------------------------------
    @Test(dataProvider="calendars")
    public void test_ChronoSerialization(Chronology chrono) throws Exception {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(baos);
        out.writeObject(chrono);
        out.close();
        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());

        ObjectInputStream in = new ObjectInputStream(bais);
        @SuppressWarnings("unchecked")
        Chronology ser = (Chronology) in.readObject();
        assertEquals(ser, chrono, "deserialized Chronology is wrong");
    }

    /**
     * Utility method to dump a byte array in a java syntax.
     * @param bytes and array of bytes
     * @param os the outputstream to receive the output.
     */
    static void dumpSerialStream(byte[] bytes, PrintStream os) {
        os.printf("    byte[] bytes = {" );
        final int linelen = 10;
        for (int i = 0; i < bytes.length; i++) {
            if (i % linelen == 0) {
                os.printf("%n        ");
            }
            os.printf(" %3d,", bytes[i] & 0xff);
            if ((i % linelen) == (linelen-1) || i == bytes.length - 1) {
                os.printf("  /*");
                int s = i / linelen * linelen;
                int k = i % linelen;
                for (int j = 0; j <= k && s + j < bytes.length; j++) {
                    os.printf(" %c", bytes[s + j] & 0xff);
                }
                os.printf(" */");
            }
        }
        os.printf("%n    };%n");
    }

}