jtulach@84: package apifest;
jtulach@84: 
jtulach@84: import java.math.BigDecimal;
jtulach@84: import java.util.Currency;
jtulach@84: import junit.framework.TestCase;
jtulach@84: import org.apidesign.apifest08.currency.Convertor;
jtulach@84: import org.apidesign.apifest08.currency.ConvertorFactory;
jtulach@84: import org.apidesign.apifest08.currency.InvalidConversionException;
jtulach@84: 
jtulach@84: 
jtulach@84: /** Write a test that works with version from task A and fails with version B.
jtulach@84:  */
jtulach@84: public class CurrencyTest extends TestCase {
jtulach@84:     public CurrencyTest(String n) {
jtulach@84:         super(n);
jtulach@84:     }
jtulach@84:     
jtulach@84:     public void testCompatibility() throws Exception {
jtulach@84:         incompatibility1();
jtulach@84:       //  incompatibility2(); //another test proving incompatibility in versions
jtulach@84:       //  incompatibility3(); //another test proving incompatibility in versions
jtulach@84:     }
jtulach@84: 
jtulach@84:     private void incompatibility1() throws Exception {
jtulach@84:           Convertor c = ConvertorFactory.getConvertor("CZK", BigDecimal.valueOf(17.0), "USD", BigDecimal.valueOf(1));
jtulach@84:           assertTrue("", c.toString().startsWith("org.apidesign.apifest08.currency.ConvertorImpl"));
jtulach@84:     }
jtulach@84: 
jtulach@84:     private void incompatibility2() throws Exception {
jtulach@84:           Convertor c = ConvertorFactory.getConvertor("CZK", BigDecimal.valueOf(17.0), "USD", BigDecimal.valueOf(1));
jtulach@84:           assertEquals("Testing hashcode", 961187025, c.hashCode());
jtulach@84:     }
jtulach@84: 
jtulach@84:     private void incompatibility3() throws Exception {
jtulach@84:         Convertor co = new Convertor() {
jtulach@84:             public BigDecimal convert(Currency from, Currency to, BigDecimal amount) throws InvalidConversionException {
jtulach@84:                 return null;
jtulach@84:             }
jtulach@84:         };
jtulach@84:     }
jtulach@84: 
jtulach@84: }