1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/taskx/ked/against-solution13/test/apifest/CurrencyTest.java	Sat Oct 25 20:30:54 2008 +0200
     1.3 @@ -0,0 +1,49 @@
     1.4 +package apifest;
     1.5 +
     1.6 +import java.math.BigDecimal;
     1.7 +import junit.framework.TestCase;
     1.8 +import org.apidesign.apifest08.currency.Convertor;
     1.9 +import org.apidesign.apifest08.currency.ConvertorCurrency;
    1.10 +import org.apidesign.apifest08.currency.ExchangeRateProvider;
    1.11 +
    1.12 +
    1.13 +/** Write a test that works with version from task A and fails with version B.
    1.14 + */
    1.15 +public class CurrencyTest extends TestCase {
    1.16 +    public CurrencyTest(String n) {
    1.17 +        super(n);
    1.18 +    }
    1.19 +    
    1.20 +    /** Fails because runtime incompatibility. */
    1.21 +    public void testCompatibility() throws Exception {
    1.22 +        ConvertorCurrency cur1 = ConvertorCurrency.getInstance("CZK");
    1.23 +        ConvertorCurrency cur2 = ConvertorCurrency.getInstance("CZK");
    1.24 +        
    1.25 +        assertEquals(false, cur1.equals(cur2));
    1.26 +    }
    1.27 +
    1.28 +    /** Fails because source incompatibility. */
    1.29 +    public void testCompatibility2() throws Exception {
    1.30 +        MyOwnExchangeRateProvider provider = new MyOwnExchangeRateProvider(
    1.31 +                new BigDecimal("1"), ConvertorCurrency.getInstance("USD"),
    1.32 +                new BigDecimal("16"), ConvertorCurrency.getInstance("CZK"));
    1.33 +        Convertor c = Convertor.createConvertor(provider);
    1.34 +        
    1.35 +        boolean result = provider.addFixedCurencyRate(
    1.36 +                ConvertorCurrency.getInstance("CZK"), new BigDecimal("80"),
    1.37 +                ConvertorCurrency.getInstance("SKK"), new BigDecimal("100"));
    1.38 +        assertEquals(true, result);
    1.39 +    }
    1.40 +    
    1.41 +    class MyOwnExchangeRateProvider extends ExchangeRateProvider {
    1.42 +
    1.43 +        public MyOwnExchangeRateProvider(BigDecimal fromValue, ConvertorCurrency fromCurrency, BigDecimal toValue, ConvertorCurrency toCurrency) {
    1.44 +            super(fromValue, fromCurrency, toValue, toCurrency);
    1.45 +        }
    1.46 +    
    1.47 +        public boolean addFixedCurencyRate(ConvertorCurrency fromCurrency, BigDecimal fromValue, ConvertorCurrency toCurrency, BigDecimal toValue) {
    1.48 +            return true; // great method - do nothing and is always satisfied ;-)
    1.49 +        }
    1.50 +
    1.51 +    }
    1.52 +}