1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/task2/solution01/test/org/apidesign/apifest08/test/Task1Test.java	Wed Oct 01 10:43:05 2008 +0200
     1.3 @@ -0,0 +1,104 @@
     1.4 +package org.apidesign.apifest08.test;
     1.5 +
     1.6 +import junit.framework.TestCase;
     1.7 +import org.apidesign.apifest08.currency.*;
     1.8 +
     1.9 +import java.math.BigDecimal;
    1.10 +import java.math.RoundingMode;
    1.11 +import java.util.Currency;
    1.12 +
    1.13 +/**
    1.14 + * Finish the Convertor API, and then write bodies of methods inside
    1.15 + * of this class to match the given tasks. To fullfil your task, use the
    1.16 + * API define in the <code>org.apidesign.apifest08.currency</code> package.
    1.17 + * Do not you reflection, or other hacks as your code
    1.18 + * shall run without any runtime permissions.
    1.19 + */
    1.20 +public class Task1Test extends TestCase {
    1.21 +    private static CurrencyConvertorFactory currencyConvertorFactoryInstance;
    1.22 +
    1.23 +    public Task1Test(String testName) {
    1.24 +        super(testName);
    1.25 +    }
    1.26 +
    1.27 +    @Override
    1.28 +    protected void setUp() throws Exception {
    1.29 +        currencyConvertorFactoryInstance = ConvertorsFactory.getCurrencyConvertorFactoryInstance();
    1.30 +    }
    1.31 +
    1.32 +    @Override
    1.33 +    protected void tearDown() throws Exception {
    1.34 +        currencyConvertorFactoryInstance = null;
    1.35 +    }
    1.36 +
    1.37 +    /**
    1.38 +     * Create convertor that understands two currencies, CZK and
    1.39 +     * USD. Make 1 USD == 17 CZK.
    1.40 +     * <p/>
    1.41 +     * Creation of the convertor shall not require subclassing of any class
    1.42 +     * or interface on the client side.
    1.43 +     *
    1.44 +     * @return prepared convertor ready for converting USD to CZK and CZK to USD
    1.45 +     */
    1.46 +    public static Convertor createCZKtoUSD() throws ConvertorNotAvailableException {
    1.47 +        final Currency czk = Currency.getInstance("CZK");
    1.48 +        final Currency usd = Currency.getInstance("USD");
    1.49 +        final BigDecimal constant = BigDecimal.ONE.divide(BigDecimal.valueOf(17), 10, RoundingMode.HALF_EVEN);
    1.50 +        return currencyConvertorFactoryInstance.createConvertor(czk, usd, ConversionProperties.create(constant, RoundingMode.HALF_EVEN));
    1.51 +    }
    1.52 +
    1.53 +    /**
    1.54 +     * Create convertor that understands two currencies, CZK and
    1.55 +     * SKK. Make 100 SKK == 80 CZK.
    1.56 +     * <p/>
    1.57 +     * Creation of the convertor shall not require subclassing of any class
    1.58 +     * or interface on the client side.
    1.59 +     *
    1.60 +     * @return prepared convertor ready for converting SKK to CZK and CZK to SKK
    1.61 +     */
    1.62 +    public static Convertor createSKKtoCZK() throws ConvertorNotAvailableException {
    1.63 +        final Currency skk = Currency.getInstance("SKK");
    1.64 +        final Currency czk = Currency.getInstance("CZK");
    1.65 +        final BigDecimal constant = new BigDecimal("0.8");
    1.66 +        return currencyConvertorFactoryInstance.createConvertor(skk, czk, ConversionProperties.create(constant, RoundingMode.HALF_EVEN));
    1.67 +    }
    1.68 +
    1.69 +    /**
    1.70 +     * Use the convertor from <code>createCZKtoUSD</code> method and do few conversions
    1.71 +     * with it.
    1.72 +     */
    1.73 +    public void testCurrencyCZKUSD() throws Exception {
    1.74 +        Convertor c = createCZKtoUSD();
    1.75 +        // convert $5 to CZK using c:
    1.76 +
    1.77 +        final int czkDigitsScale = c.getCurrency1().getDefaultFractionDigits();
    1.78 +        final int usdDigitsScale = c.getCurrency2().getDefaultFractionDigits();
    1.79 +
    1.80 +        assertEquals("Result is 85 CZK", BigDecimal.valueOf(85).setScale(czkDigitsScale), c.convertCurrency2ToCurrency1(BigDecimal.valueOf(5)));
    1.81 +
    1.82 +        // convert $8 to CZK
    1.83 +        assertEquals("Result is 136 CZK", BigDecimal.valueOf(136).setScale(czkDigitsScale), c.convertCurrency2ToCurrency1(BigDecimal.valueOf(8)));
    1.84 +
    1.85 +        // convert 1003CZK to USD
    1.86 +        assertEquals("Result is 59 USD", BigDecimal.valueOf(59).setScale(usdDigitsScale), c.convertCurrency1ToCurrency2(BigDecimal.valueOf(1003)));
    1.87 +    }
    1.88 +
    1.89 +    /**
    1.90 +     * Use the convertor from <code>createSKKtoCZK</code> method and do few conversions
    1.91 +     * with it.
    1.92 +     */
    1.93 +    public void testCurrencySKKCZK() throws Exception {
    1.94 +        Convertor c = createSKKtoCZK();
    1.95 +        // convert 16CZK using c:
    1.96 +
    1.97 +        final int skkDigitsScale = c.getCurrency1().getDefaultFractionDigits();
    1.98 +        final int czkDigitsScale = c.getCurrency2().getDefaultFractionDigits();
    1.99 +        
   1.100 +        assertEquals("Result is 20 SKK", BigDecimal.valueOf(20).setScale(skkDigitsScale), c.convertCurrency2ToCurrency1(BigDecimal.valueOf(16)));
   1.101 +
   1.102 +        // convert 500SKK to CZK
   1.103 +        assertEquals("Result is 400 CZK", BigDecimal.valueOf(400).setScale(czkDigitsScale), c.convertCurrency1ToCurrency2(BigDecimal.valueOf(500)));
   1.104 +    }
   1.105 +
   1.106 +}
   1.107 +