package apifest;

 import junit.framework.TestCase;

 import org.apidesign.apifest08.currency.ConvertorCurrency;

 /** 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 {

         ConvertorCurrency cur1 = ConvertorCurrency.getInstance("CZK");

         ConvertorCurrency cur2 = ConvertorCurrency.getInstance("CZK");

         assertNotSame("Two different instances", cur1, cur2);

         if (cur1.equals(cur2)) {

             fail("They are even not equal in first version");

         }

     }

 }