jtulach@83: package apifest;
jtulach@83: 
jtulach@83: import java.math.BigDecimal;
jtulach@83: import java.util.Currency;
jtulach@83: import junit.framework.TestCase;
jtulach@83: import org.apidesign.apifest08.currency.Convertor;
jtulach@83: import org.apidesign.apifest08.currency.InvalidConversionException;
jtulach@83: 
jtulach@83: 
jtulach@83: /** Write a test that works with version from task A and fails with version B.
jtulach@83:  */
jtulach@83: public class CurrencyTest extends TestCase {
jtulach@83:     public CurrencyTest(String n) {
jtulach@83:         super(n);
jtulach@83:     }
jtulach@83:     
jtulach@83:     public void testCompatibility() throws Exception {
jtulach@83:         Convertor myOwnImplementationOfConvertor =
jtulach@83:                 new MyOwnImplementationOfConvertor();
jtulach@83:         
jtulach@83:         BigDecimal result = myOwnImplementationOfConvertor.convert(
jtulach@83:                 Currency.getInstance("CZK"),
jtulach@83:                 Currency.getInstance("USD"),
jtulach@83:                 new BigDecimal("1"));
jtulach@83:         assertEquals(1, result.intValue());
jtulach@83:     }
jtulach@83:     
jtulach@83:     class MyOwnImplementationOfConvertor implements Convertor {
jtulach@83:         public BigDecimal convert(Currency from, Currency to, BigDecimal amount) throws InvalidConversionException {
jtulach@83:             return amount; // not very smart implementation
jtulach@83:         }
jtulach@83:     }
jtulach@83: }