/*
    *  Copyright 2001-2005 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.convert;
  
  import java.lang.reflect.Constructor;
  import java.lang.reflect.Field;
  import java.lang.reflect.Modifier;
  import java.util.Arrays;
  import java.util.Date;
  
  import junit.framework.TestCase;
  import junit.framework.TestSuite;
  
  import org.joda.time.Chronology;
  import org.joda.time.DateTimeZone;
  import org.joda.time.TimeOfDay;
  import org.joda.time.chrono.CopticChronology;
  import org.joda.time.chrono.ISOChronology;
  import org.joda.time.chrono.JulianChronology;
  
  /**
   * This class is a Junit unit test for DateConverter.
   *
   * @author Stephen Colebourne
   */
  public class TestDateConverter extends TestCase {
  
      private static final DateTimeZone PARIS = DateTimeZone.forID("Europe/Paris");
      private static final Chronology ISO_PARIS = ISOChronology.getInstance(PARIS);
      private static Chronology ISO;
      private static Chronology JULIAN;
      private static Chronology COPTIC;
      
      public static void main(String[] args) {
          junit.textui.TestRunner.run(suite());
      }
  
      public static TestSuite suite() {
          return new TestSuite(TestDateConverter.class);
      }
  
      public TestDateConverter(String name) {
          super(name);
      }
  
      protected void setUp() throws Exception {
          JULIAN = JulianChronology.getInstance();
          COPTIC = CopticChronology.getInstance();
          ISO = ISOChronology.getInstance();
      }
  
      //-----------------------------------------------------------------------
      public void testSingleton() throws Exception {
          Class cls = DateConverter.class;
          assertEquals(false, Modifier.isPublic(cls.getModifiers()));
          assertEquals(false, Modifier.isProtected(cls.getModifiers()));
          assertEquals(false, Modifier.isPrivate(cls.getModifiers()));
          
          Constructor con = cls.getDeclaredConstructor((Class[]) null);
          assertEquals(1, cls.getDeclaredConstructors().length);
          assertEquals(true, Modifier.isProtected(con.getModifiers()));
          
          Field fld = cls.getDeclaredField("INSTANCE");
          assertEquals(false, Modifier.isPublic(fld.getModifiers()));
          assertEquals(false, Modifier.isProtected(fld.getModifiers()));
          assertEquals(false, Modifier.isPrivate(fld.getModifiers()));
      }
  
      //-----------------------------------------------------------------------
      public void testSupportedType() throws Exception {
          assertEquals(Date.class, DateConverter.INSTANCE.getSupportedType());
      }
  
      //-----------------------------------------------------------------------
      public void testGetInstantMillis_Object_Chronology() throws Exception {
          Date date = new Date(123L);
          long millis = DateConverter.INSTANCE.getInstantMillis(date, JULIAN);
          assertEquals(123L, millis);
          assertEquals(123L, DateConverter.INSTANCE.getInstantMillis(date, (Chronology) null));
      }
  
      //-----------------------------------------------------------------------
      public void testGetChronology_Object_Zone() throws Exception {
          assertEquals(ISO_PARIS, DateConverter.INSTANCE.getChronology(new Date(123L), PARIS));
          assertEquals(ISO, DateConverter.INSTANCE.getChronology(new Date(123L), (DateTimeZone) null));
      }
 
     public void testGetChronology_Object_Chronology() throws Exception {
         assertEquals(JULIAN, DateConverter.INSTANCE.getChronology(new Date(123L), JULIAN));
         assertEquals(ISO, DateConverter.INSTANCE.getChronology(new Date(123L), (Chronology) null));
     }
 
     //-----------------------------------------------------------------------
     public void testGetPartialValues() throws Exception {
         TimeOfDay tod = new TimeOfDay();
         int[] expected = COPTIC.get(tod, 12345678L);
         int[] actual = DateConverter.INSTANCE.getPartialValues(tod, new Date(12345678L), COPTIC);
         assertEquals(true, Arrays.equals(expected, actual));
     }
 
     //-----------------------------------------------------------------------
     public void testToString() {
         assertEquals("Converter[java.util.Date]", DateConverter.INSTANCE.toString());
     }
 
 }