package apifest;

 import junit.framework.TestCase;

 import org.apidesign.apifest08.currency.Convertor;

 import org.apidesign.apifest08.currency.ConvertorFactory;

 import org.apidesign.apifest08.currency.CurrencyRate;

 import org.apidesign.apifest08.currency.Rate;

 /** Write a test that works with version from task A and fails with version B.

  */

 public class CurrencyTest extends TestCase {

     public CurrencyTest(String n) {

         super(n);

     }

     public void testCompatibility() throws Exception {

         Convertor c = ConvertorFactory.newInstance().createConvertor(

                 new MyOwnCurrencyRate("CZK", "USD", new Rate(1, 16), "ABCDEF"));

         MyOwnCurrencyRate[] arr = c.getCurrencyRates().toArray(new MyOwnCurrencyRate[1]);

         assertEquals("ABCDEF", arr[0].getMyImportantProperty());

     }

     class MyOwnCurrencyRate implements CurrencyRate {

         private final String currency1;

         private final String currency2;

         private final Rate rate;

         private final String myImportantProperty;

         public MyOwnCurrencyRate(String currency1, String currency2, Rate rate, String myImportantProperty) {

             this.currency1 = currency1;

             this.currency2 = currency2;

             this.rate = rate;

             this.myImportantProperty = myImportantProperty;

         }

         public String getCurrency1() {

             return currency1;

         }

         public String getCurrency2() {

             return currency2;

         }

         public Rate getRate() {

             return rate;

         }

         public String getMyImportantProperty() {

             return myImportantProperty;

         }

     }

 }