1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/taskx/psmid/against-solution04/test/apifest/CurrencyTest.java	Sat Oct 25 20:53:00 2008 +0200
     1.3 @@ -0,0 +1,42 @@
     1.4 +package apifest;
     1.5 +
     1.6 +import java.math.BigDecimal;
     1.7 +import java.util.Currency;
     1.8 +import junit.framework.TestCase;
     1.9 +import org.apidesign.apifest08.currency.Convertor;
    1.10 +import org.apidesign.apifest08.currency.ConvertorFactory;
    1.11 +import org.apidesign.apifest08.currency.InvalidConversionException;
    1.12 +
    1.13 +
    1.14 +/** Write a test that works with version from task A and fails with version B.
    1.15 + */
    1.16 +public class CurrencyTest extends TestCase {
    1.17 +    public CurrencyTest(String n) {
    1.18 +        super(n);
    1.19 +    }
    1.20 +    
    1.21 +    public void testCompatibility() throws Exception {
    1.22 +        incompatibility1();
    1.23 +      //  incompatibility2(); //another test proving incompatibility in versions
    1.24 +      //  incompatibility3(); //another test proving incompatibility in versions
    1.25 +    }
    1.26 +
    1.27 +    private void incompatibility1() throws Exception {
    1.28 +          Convertor c = ConvertorFactory.getConvertor("CZK", BigDecimal.valueOf(17.0), "USD", BigDecimal.valueOf(1));
    1.29 +          assertTrue("", c.toString().startsWith("org.apidesign.apifest08.currency.ConvertorImpl"));
    1.30 +    }
    1.31 +
    1.32 +    private void incompatibility2() throws Exception {
    1.33 +          Convertor c = ConvertorFactory.getConvertor("CZK", BigDecimal.valueOf(17.0), "USD", BigDecimal.valueOf(1));
    1.34 +          assertEquals("Testing hashcode", 961187025, c.hashCode());
    1.35 +    }
    1.36 +
    1.37 +    private void incompatibility3() throws Exception {
    1.38 +        Convertor co = new Convertor() {
    1.39 +            public BigDecimal convert(Currency from, Currency to, BigDecimal amount) throws InvalidConversionException {
    1.40 +                return null;
    1.41 +            }
    1.42 +        };
    1.43 +    }
    1.44 +
    1.45 +}