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package apifest;
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import java.math.BigDecimal;
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import junit.framework.TestCase;
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import org.apidesign.apifest08.currency.Convertor;
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import org.apidesign.apifest08.currency.ConvertorCurrency;
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import org.apidesign.apifest08.currency.ExchangeRateProvider;
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/** Write a test that works with version from task A and fails with version B.
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*/
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public class CurrencyTest extends TestCase {
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public CurrencyTest(String n) {
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super(n);
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}
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/** Fails because runtime incompatibility. */
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public void testCompatibility() throws Exception {
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ConvertorCurrency cur1 = ConvertorCurrency.getInstance("CZK");
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ConvertorCurrency cur2 = ConvertorCurrency.getInstance("CZK");
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assertEquals(false, cur1.equals(cur2));
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}
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/** Fails because source incompatibility. */
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public void testCompatibility2() throws Exception {
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MyOwnExchangeRateProvider provider = new MyOwnExchangeRateProvider(
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new BigDecimal("1"), ConvertorCurrency.getInstance("USD"),
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new BigDecimal("16"), ConvertorCurrency.getInstance("CZK"));
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Convertor c = Convertor.createConvertor(provider);
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boolean result = provider.addFixedCurencyRate(
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ConvertorCurrency.getInstance("CZK"), new BigDecimal("80"),
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ConvertorCurrency.getInstance("SKK"), new BigDecimal("100"));
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assertEquals(true, result);
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}
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class MyOwnExchangeRateProvider extends ExchangeRateProvider {
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public MyOwnExchangeRateProvider(BigDecimal fromValue, ConvertorCurrency fromCurrency, BigDecimal toValue, ConvertorCurrency toCurrency) {
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super(fromValue, fromCurrency, toValue, toCurrency);
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}
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public boolean addFixedCurencyRate(ConvertorCurrency fromCurrency, BigDecimal fromValue, ConvertorCurrency toCurrency, BigDecimal toValue) {
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return true; // great method - do nothing and is always satisfied ;-)
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}
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}
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}
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