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Java example source code file (TestSerialization.java)

This example Java source code file (TestSerialization.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

datemidnight, datetimezone, exception, gjchronology, instant, localdate, localdatetime, localtime, mutabledatetime, objectinputstream, periodtype, suppresswarnings, timeofday, util, yearmonthday

The TestSerialization.java Java example source code

/*
 *  Copyright 2001-2013 Stephen Colebourne
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.joda.time;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Locale;
import java.util.TimeZone;

import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.joda.time.chrono.BuddhistChronology;
import org.joda.time.chrono.CopticChronology;
import org.joda.time.chrono.GJChronology;
import org.joda.time.chrono.GregorianChronology;
import org.joda.time.chrono.ISOChronology;
import org.joda.time.chrono.JulianChronology;
import org.joda.time.field.UnsupportedDateTimeField;
import org.joda.time.field.UnsupportedDurationField;

/**
 * This class is a Junit unit test for serialization.
 *
 * @author Stephen Colebourne
 */
public class TestSerialization extends TestCase {
    // Test in 2002/03 as time zones are more well known
    // (before the late 90's they were all over the place)

    private static final DateTimeZone PARIS = DateTimeZone.forID("Europe/Paris");
    private static final DateTimeZone LONDON = DateTimeZone.forID("Europe/London");
    private static final DateTimeZone TOKYO = DateTimeZone.forID("Asia/Tokyo");
    
    long y2002days = 365 + 365 + 366 + 365 + 365 + 365 + 366 + 365 + 365 + 365 + 
                     366 + 365 + 365 + 365 + 366 + 365 + 365 + 365 + 366 + 365 + 
                     365 + 365 + 366 + 365 + 365 + 365 + 366 + 365 + 365 + 365 +
                     366 + 365;
    long y2003days = 365 + 365 + 366 + 365 + 365 + 365 + 366 + 365 + 365 + 365 + 
                     366 + 365 + 365 + 365 + 366 + 365 + 365 + 365 + 366 + 365 + 
                     365 + 365 + 366 + 365 + 365 + 365 + 366 + 365 + 365 + 365 +
                     366 + 365 + 365;
    
    // 2002-06-09
    private long TEST_TIME_NOW =
            (y2002days + 31L + 28L + 31L + 30L + 31L + 9L -1L) * DateTimeConstants.MILLIS_PER_DAY;
            
    // 2002-04-05
    private long TEST_TIME1 =
            (y2002days + 31L + 28L + 31L + 5L -1L) * DateTimeConstants.MILLIS_PER_DAY
            + 12L * DateTimeConstants.MILLIS_PER_HOUR
            + 24L * DateTimeConstants.MILLIS_PER_MINUTE;
        
    // 2003-05-06
    private long TEST_TIME2 =
            (y2003days + 31L + 28L + 31L + 30L + 6L -1L) * DateTimeConstants.MILLIS_PER_DAY
            + 14L * DateTimeConstants.MILLIS_PER_HOUR
            + 28L * DateTimeConstants.MILLIS_PER_MINUTE;

//    private static class MockDelegatedDurationField extends DelegatedDurationField implements Serializable {
//        private static final long serialVersionUID = 1878496002811998493L;        
//        public MockDelegatedDurationField() {
//            super(MillisDurationField.INSTANCE);
//        }
//    }

    private DateTimeZone originalDateTimeZone = null;
    private TimeZone originalTimeZone = null;
    private Locale originalLocale = null;

    public static void main(String[] args) {
        junit.textui.TestRunner.run(suite());
    }

    public static TestSuite suite() {
        return new TestSuite(TestSerialization.class);
    }

    public TestSerialization(String name) {
        super(name);
    }

    protected void setUp() throws Exception {
        DateTimeUtils.setCurrentMillisFixed(TEST_TIME_NOW);
        originalDateTimeZone = DateTimeZone.getDefault();
        originalTimeZone = TimeZone.getDefault();
        originalLocale = Locale.getDefault();
        DateTimeZone.setDefault(LONDON);
        TimeZone.setDefault(TimeZone.getTimeZone("Europe/London"));
        Locale.setDefault(Locale.UK);
    }

    protected void tearDown() throws Exception {
        DateTimeUtils.setCurrentMillisSystem();
        DateTimeZone.setDefault(originalDateTimeZone);
        TimeZone.setDefault(originalTimeZone);
        Locale.setDefault(originalLocale);
        originalDateTimeZone = null;
        originalTimeZone = null;
        originalLocale = null;
    }

    //-----------------------------------------------------------------------
    public void testTest() {
        assertEquals("2002-06-09T00:00:00.000Z", new Instant(TEST_TIME_NOW).toString());
        assertEquals("2002-04-05T12:24:00.000Z", new Instant(TEST_TIME1).toString());
        assertEquals("2003-05-06T14:28:00.000Z", new Instant(TEST_TIME2).toString());
    }

    //-----------------------------------------------------------------------
    public void testSerializedInstant() throws Exception {
        Instant test = new Instant();
        loadAndCompare(test, "Instant", false);
        inlineCompare(test, false);
    }

    public void testSerializedDateTime() throws Exception {
        DateTime test = new DateTime();
        loadAndCompare(test, "DateTime", false);
        inlineCompare(test, false);
    }

    public void testSerializedDateTimeProperty() throws Exception {
        DateTime.Property test = new DateTime().hourOfDay();
        loadAndCompare(test, "DateTimeProperty", false);
        inlineCompare(test, false);
    }

    public void testSerializedMutableDateTime() throws Exception {
        MutableDateTime test = new MutableDateTime();
        loadAndCompare(test, "MutableDateTime", false);
        inlineCompare(test, false);
    }

    public void testSerializedMutableDateTimeProperty() throws Exception {
        MutableDateTime.Property test = new MutableDateTime().hourOfDay();
        loadAndCompare(test, "MutableDateTimeProperty", false);
        inlineCompare(test, false);
    }

    @SuppressWarnings("deprecation")
    public void testSerializedDateMidnight() throws Exception {
        DateMidnight test = new DateMidnight();
        loadAndCompare(test, "DateMidnight", false);
        inlineCompare(test, false);
    }

    @SuppressWarnings("deprecation")
    public void testSerializedDateMidnightProperty() throws Exception {
        DateMidnight.Property test = new DateMidnight().monthOfYear();
        loadAndCompare(test, "DateMidnightProperty", false);
        inlineCompare(test, false);
    }

    public void testSerializedLocalDate() throws Exception {
        LocalDate test = new LocalDate();
        loadAndCompare(test, "LocalDate", false);
        inlineCompare(test, false);
    }

    public void testSerializedLocalDateBuddhist() throws Exception {
        LocalDate test = new LocalDate(BuddhistChronology.getInstanceUTC());
        loadAndCompare(test, "LocalDateBuddhist", false);
        inlineCompare(test, false);
    }

    public void testSerializedLocalTime() throws Exception {
        LocalTime test = new LocalTime();
        loadAndCompare(test, "LocalTime", false);
        inlineCompare(test, false);
    }

    public void testSerializedLocalDateTime() throws Exception {
        LocalDateTime test = new LocalDateTime();
        loadAndCompare(test, "LocalDateTime", false);
        inlineCompare(test, false);
    }

    @SuppressWarnings("deprecation")
    public void testSerializedYearMonthDay() throws Exception {
        YearMonthDay test = new YearMonthDay();
        loadAndCompare(test, "YearMonthDay", false);
        inlineCompare(test, false);
    }

    @SuppressWarnings("deprecation")
    public void testSerializedTimeOfDay() throws Exception {
        TimeOfDay test = new TimeOfDay();
        loadAndCompare(test, "TimeOfDay", false);
        inlineCompare(test, false);
    }

    public void testSerializedDateTimeZoneUTC() throws Exception {
        DateTimeZone test = DateTimeZone.UTC;
        loadAndCompare(test, "DateTimeZoneUTC", true);
        inlineCompare(test, true);
    }

    public void testSerializedDateTimeZone() throws Exception {
        // have to re-get the zone, as TestDateTimeZone may have
        // changed the cache, or a SoftReference may have got cleared
        DateTimeZone test = DateTimeZone.forID("Europe/Paris");
        loadAndCompare(test, "DateTimeZone", true);
        inlineCompare(test, true);
    }

    public void testDuration() throws Exception {
        Duration test = Duration.millis(12345);
        loadAndCompare(test, "Duration", false);
        inlineCompare(test, false);
    }

    public void testSerializedCopticChronology() throws Exception {
        CopticChronology test = CopticChronology.getInstance(LONDON);
        loadAndCompare(test, "CopticChronology", true);
        inlineCompare(test, true);
    }

    public void testSerializedISOChronology() throws Exception {
        ISOChronology test = ISOChronology.getInstance(PARIS);
        loadAndCompare(test, "ISOChronology", true);
        inlineCompare(test, true);
    }

    public void testSerializedGJChronology() throws Exception {
        GJChronology test = GJChronology.getInstance(TOKYO);
        loadAndCompare(test, "GJChronology", true);
        inlineCompare(test, true);
    }

    public void testSerializedGJChronologyChangedInternals() throws Exception {
        GJChronology test = GJChronology.getInstance(PARIS, 123L, 2);
        loadAndCompare(test, "GJChronologyChangedInternals", true);
        inlineCompare(test, true);
    }

    public void testSerializedGregorianChronology() throws Exception {
        GregorianChronology test = GregorianChronology.getInstance(PARIS);
        loadAndCompare(test, "GregorianChronology", true);
        inlineCompare(test, true);
    }

    public void testSerializedJulianChronology() throws Exception {
        JulianChronology test = JulianChronology.getInstance(PARIS);
        loadAndCompare(test, "JulianChronology", true);
        inlineCompare(test, true);
    }

    public void testSerializedBuddhistChronology() throws Exception {
        BuddhistChronology test = BuddhistChronology.getInstance(PARIS);
        loadAndCompare(test, "BuddhistChronology", true);
        inlineCompare(test, true);
    }

    public void testSerializedPeriodType() throws Exception {
        PeriodType test = PeriodType.dayTime();
        loadAndCompare(test, "PeriodType", false);
        inlineCompare(test, false);
    }

    public void testSerializedDateTimeFieldType() throws Exception {
        DateTimeFieldType test = DateTimeFieldType.clockhourOfDay();
        loadAndCompare(test, "DateTimeFieldType", true);
        inlineCompare(test, true);
    }

    public void testSerializedUnsupportedDateTimeField() throws Exception {
        UnsupportedDateTimeField test = UnsupportedDateTimeField.getInstance(
                DateTimeFieldType.year(),
                UnsupportedDurationField.getInstance(DurationFieldType.years()));
        loadAndCompare(test, "UnsupportedDateTimeField", true);
        inlineCompare(test, true);
    }

    private void loadAndCompare(Serializable test, String filename, boolean same) throws Exception {
        FileInputStream fis = new FileInputStream("src/test/resources/" + filename + ".dat");
        ObjectInputStream ois = new ObjectInputStream(fis);
        Object obj = ois.readObject();
        ois.close();
        if (same) {
            assertSame(test, obj);
        } else {
            assertEquals(test, obj);
        }
//        try {
//            fis = new FileInputStream("src/test/resources/" + filename + "2.dat");
//            ois = new ObjectInputStream(fis);
//            obj = ois.readObject();
//            ois.close();
//            if (same) {
//                assertSame(test, obj);
//            } else {
//                assertEquals(test, obj);
//            }
//        } catch (FileNotFoundException ex) {
//            // ignore
//        }
    }

    public void inlineCompare(Serializable test, boolean same) throws Exception {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(test);
        oos.close();
        
        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
        ObjectInputStream ois = new ObjectInputStream(bais);
        Object obj = ois.readObject();
        ois.close();
        
        if (same) {
            assertSame(test, obj);
        } else {
            assertEquals(test, obj);
        }
    }

//    //-----------------------------------------------------------------------
//    public void testStoreSerializedInstant() throws Exception {
//        Instant test = new Instant();
//        store(test, "Instant.dat");
//    }
//
//    public void testStoreSerializedDateTime() throws Exception {
//        DateTime test = new DateTime();
//        store(test, "DateTime.dat");
//    }
//
//    public void testStoreSerializedMutableDateTime() throws Exception {
//        MutableDateTime test = new MutableDateTime();
//        store(test, "MutableDateTime.dat");
//    }
//
//    public void testStoreSerializedDateMidnight() throws Exception {
//        DateMidnight test = new DateMidnight();
//        store(test, "DateMidnight.dat");
//    }
//
//    public void testStoreSerializedLocalDate() throws Exception {
//        LocalDate test = new LocalDate();
//        store(test, "LocalDate.dat");
//    }
//
//    public void testStoreSerializedLocalDateBuddhist() throws Exception {
//        LocalDate test = new LocalDate(BuddhistChronology.getInstanceUTC());
//        store(test, "LocalDateBuddhist.dat");
//    }
//
//    public void testStoreSerializedLocalTime() throws Exception {
//        LocalTime test = new LocalTime();
//        store(test, "LocalTime.dat");
//    }
//
//    public void testStoreSerializedLocalDateTime() throws Exception {
//        LocalDateTime test = new LocalDateTime();
//        store(test, "LocalDateTime.dat");
//    }
//
//    public void testStoreSerializedYearMonthDay() throws Exception {
//        YearMonthDay test = new YearMonthDay();
//        store(test, "YearMonthDay.dat");
//    }
//
//    public void testStoreSerializedYearMonthDayProperty() throws Exception {
//        YearMonthDay.Property test = new YearMonthDay().monthOfYear();
//        store(test, "YearMonthDayProperty.dat");
//    }
//
//    public void testStoreSerializedTimeOfDay() throws Exception {
//        TimeOfDay test = new TimeOfDay();
//        store(test, "TimeOfDay.dat");
//    }
//
//    public void testStoreSerializedTimeOfDayProperty() throws Exception {
//        TimeOfDay.Property test = new TimeOfDay().hourOfDay();
//        store(test, "TimeOfDayProperty.dat");
//    }
//
//    public void testStoreSerializedDateTimeZoneUTC() throws Exception {
//        DateTimeZone test = DateTimeZone.UTC;
//        store(test, "DateTimeZoneUTC.dat");
//    }
//
//    public void testStoreSerializedDateTimeZone() throws Exception {
//        DateTimeZone test = PARIS;
//        store(test, "DateTimeZone.dat");
//    }
//
//    public void testStoreSerializedCopticChronology() throws Exception {
//        CopticChronology test = CopticChronology.getInstance(LONDON);
//        store(test, "CopticChronology.dat");
//    }
//
//    public void testStoreSerializedISOChronology() throws Exception {
//        ISOChronology test = ISOChronology.getInstance(PARIS);
//        store(test, "ISOChronology.dat");
//    }
//
//    public void testStoreSerializedGJChronology() throws Exception {
//        GJChronology test = GJChronology.getInstance(TOKYO);
//        store(test, "GJChronology.dat");
//    }
//
//    // Format changed in v1.2 - min days in first week not deserialized in v1.0/1.1
//    public void testStoreSerializedGJChronologyChangedInternals() throws Exception {
//        GJChronology test = GJChronology.getInstance(PARIS, 123L, 2);
//        store(test, "GJChronologyChangedInternals.dat");
//    }
//
//    public void testStoreSerializedGregorianChronology() throws Exception {
//        GregorianChronology test = GregorianChronology.getInstance(PARIS);
//        store(test, "GregorianChronology.dat");
//    }
//
//    public void testStoreSerializedJulianChronology() throws Exception {
//        JulianChronology test = JulianChronology.getInstance(PARIS);
//        store(test, "JulianChronology.dat");
//    }
//
//    public void testStoreSerializedBuddhistChronology() throws Exception {
//        BuddhistChronology test = BuddhistChronology.getInstance(PARIS);
//        store(test, "BuddhistChronology.dat");
//    }
//
//    public void testStoreSerializedPeriodType() throws Exception {
//        PeriodType test = PeriodType.dayTime();
//        store(test, "PeriodType.dat");
//    }
//
//    public void testStoreSerializedDateTimeFieldType() throws Exception {
//        DateTimeFieldType test = DateTimeFieldType.clockhourOfDay();
//        store(test, "DateTimeFieldType.dat");
//    }
//
//    public void testStoreSerializedUnsupportedDateTimeField() throws Exception {
//        UnsupportedDateTimeField test = UnsupportedDateTimeField.getInstance(
//                DateTimeFieldType.year(),
//                UnsupportedDurationField.getInstance(DurationFieldType.years()));
//        store(test, "UnsupportedDateTimeField.dat");
//    }
//
//    public void testStoreSerializedDurationFieldType() throws Exception {
//        DurationFieldType test = DurationFieldType.MINUTES_TYPE;
//        store(test, "DurationFieldType.dat");
//    }
//
//    public void testStoreSerializedMillisDurationField() throws Exception {
//        MillisDurationField test = (MillisDurationField) MillisDurationField.INSTANCE;
//        store(test, "MillisDurationField.dat");
//    }
//
//    public void testStoreSerializedDelegatedDurationField() throws Exception {
//        DelegatedDurationField test = new MockDelegatedDurationField();
//        store(test, "DelegatedDurationField.dat");
//    }
//
//    public void testStoreSerializedUnsupportedDurationField() throws Exception {
//        UnsupportedDurationField test = UnsupportedDurationField.getInstance(DurationFieldType.eras());
//        store(test, "UnsupportedDurationField.dat");
//    }
//
    // format changed (properly defined) in v1.1
//    public void testStoreSerializedDateTimeProperty() throws Exception {
//        DateTime.Property test = new DateTime().hourOfDay();
//        store(test, "DateTimeProperty.dat");
//    }
//
//    public void testStoreSerializedMutableDateTimeProperty() throws Exception {
//        MutableDateTime.Property test = new MutableDateTime().hourOfDay();
//        store(test, "MutableDateTimeProperty.dat");
//    }
//
//    public void testStoreSerializedDateMidnightProperty() throws Exception {
//        DateMidnight.Property test = new DateMidnight().monthOfYear();
//        store(test, "DateMidnightProperty.dat");
//    }
//
//    public void testStoreSerializedDateMidnightProperty() throws Exception {
//        Duration test = Duration.millis(12345);
//        store(test, "Duration.dat");
//    }

//    private void store(Serializable test, String filename) throws Exception {
//        FileOutputStream fos = new FileOutputStream("src/test/resources/" + filename);
//        ObjectOutputStream oos = new ObjectOutputStream(fos);
//        try {
//            oos.writeObject(test);
//        } finally {
//            oos.close();
//        }
//        oos.close();
//    }

}

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