/*
    *  jDTAUS Banking Test Suite
    *  Copyright (C) 2005 Christian Schulte
    *  <cs@schulte.it>
    *
    *  This library is free software; you can redistribute it and/or
    *  modify it under the terms of the GNU Lesser General Public
    *  License as published by the Free Software Foundation; either
    *  version 2.1 of the License, or any later version.
   *
   *  This library 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
   *  Lesser General Public License for more details.
   *
   *  You should have received a copy of the GNU Lesser General Public
   *  License along with this library; if not, write to the Free Software
   *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   *
   */
  package org.jdtaus.banking.it;
  
  import java.util.Calendar;
  import java.util.Currency;
  import java.util.Date;
  import junit.framework.Assert;
  import junit.framework.TestCase;
  import org.jdtaus.banking.CurrencyDirectory;
  
  /**
   * Testcase for {@code CurrencyDirectory} implementations.
   *
   * @author <a href="mailto:cs@schulte.it">Christian Schulte</a>
   * @version $JDTAUS: CurrencyDirectoryTest.java 8723 2012-10-04 20:09:53Z schulte $
   */
  public class CurrencyDirectoryTest extends TestCase
  {
  
      /** Implementation to test. */
      private CurrencyDirectory directory;
  
      /**
       * Gets the {@code CurrencyDirectory} implementation tests are performed with.
       *
       * @return the {@code CurrencyDirectory} implementation tests are performed with.
       */
      public CurrencyDirectory getCurrencyDirectory()
      {
          return this.directory;
      }
  
      /**
       * Sets the {@code CurrencyDirectory} implementation tests are performed with.
       *
       * @param value the {@code CurrencyDirectory} implementation to perform tests with.
       */
      public final void setCurrencyDirectory( final CurrencyDirectory value )
      {
          this.directory = value;
      }
  
      /**
       * Checks a given array of currencies to contain an instance corresponding to a given ISO code.
       *
       * @param currencies The currencies to check.
       * @param isoCode ISO code to check existence in {@code currencies} with.
       *
       * @throws NullPointerException if either {@code currencies} or {@code isoCode} is {@code null}.
       */
      protected void assertContainsCurrency( final Currency[] currencies, final String isoCode )
      {
          if ( currencies == null )
          {
              throw new NullPointerException( "currencies" );
          }
          if ( isoCode == null )
          {
              throw new NullPointerException( "isoCode" );
          }
  
          boolean contains = false;
          for ( int i = currencies.length - 1; i >= 0; i-- )
          {
              if ( currencies[i].getCurrencyCode().equals( isoCode ) )
              {
                  contains = true;
                  break;
              }
          }
  
          if ( !contains )
          {
              throw new AssertionError( isoCode );
          }
      }
  
      /**
       * Checks a given array of currencies to not contain an instance corresponding to a given ISO code.
       *
      * @param currencies The currencies to check.
      * @param isoCode ISO code to check existence in {@code currencies} with.
      *
      * @throws NullPointerException if either {@code currencies} or {@code isoCode} is {@code null}.
      */
     protected void assertNotContainsCurrency( final Currency[] currencies, final String isoCode )
     {
         if ( currencies == null )
         {
             throw new NullPointerException( "currencies" );
         }
         if ( isoCode == null )
         {
             throw new NullPointerException( "isoCode" );
         }
 
         boolean contains = false;
         for ( int i = currencies.length - 1; i >= 0; i-- )
         {
             if ( currencies[i].getCurrencyCode().equals( isoCode ) )
             {
                 contains = true;
                 break;
             }
         }
 
         if ( contains )
         {
             throw new AssertionError( isoCode );
         }
     }
 
     /**
      * Test the {@link CurrencyDirectory#getDtausCurrencies(Date)} method to handle illegal arguments correctly by
      * throwing a {@code NullPointerException}.
      */
     public void testGetDtausCurrenciesNull()
     {
         assert this.getCurrencyDirectory() != null;
 
         try
         {
             this.getCurrencyDirectory().getDtausCurrencies( null );
             throw new AssertionError();
         }
         catch ( NullPointerException e )
         {
             Assert.assertNotNull( e.getMessage() );
             System.out.println( e.toString() );
         }
     }
 
     /** Tests the {@link CurrencyDirectory#getDtausCurrencies(Date)} method to return sane values. */
     public void testGetDtausCurrencies() throws Exception
     {
         assert this.getCurrencyDirectory() != null;
         Assert.assertTrue( this.getCurrencyDirectory().getDtausCurrencies( new Date() ).length >= 0 );
     }
 
     /**
      * Tests the {@link CurrencyDirectory#getDtausCurrencies(Date)} method to return correct values for the EUR and DEM
      * currency for various dates.
      */
     public void testCurrencyConstraints() throws Exception
     {
         assert this.getCurrencyDirectory() != null;
 
         final Calendar cal = Calendar.getInstance();
         final Date now = cal.getTime();
 
         cal.set( Calendar.YEAR, 2001 );
         cal.set( Calendar.MONTH, 11 );
         cal.set( Calendar.DAY_OF_MONTH, 31 );
 
         final Date lastDayDEM = cal.getTime();
 
         cal.set( Calendar.YEAR, 2002 );
         cal.set( Calendar.MONTH, 0 );
         cal.set( Calendar.DAY_OF_MONTH, 1 );
 
         final Date firstDayEUR = cal.getTime();
 
         this.assertContainsCurrency( this.getCurrencyDirectory().getDtausCurrencies( now ), "EUR" );
         this.assertNotContainsCurrency( this.getCurrencyDirectory().getDtausCurrencies( now ), "DEM" );
         this.assertNotContainsCurrency( this.getCurrencyDirectory().getDtausCurrencies( lastDayDEM ), "EUR" );
         this.assertContainsCurrency( this.getCurrencyDirectory().getDtausCurrencies( lastDayDEM ), "DEM" );
         this.assertContainsCurrency( this.getCurrencyDirectory().getDtausCurrencies( firstDayEUR ), "EUR" );
         this.assertNotContainsCurrency( this.getCurrencyDirectory().getDtausCurrencies( firstDayEUR ), "DEM" );
     }
 
 }