task1/solution02/test/org/apidesign/apifest08/test/Task1Test.java
changeset 6 97662396c0fd
child 16 2864c6d744c0
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/task1/solution02/test/org/apidesign/apifest08/test/Task1Test.java	Sun Sep 28 14:12:38 2008 +0200
     1.3 @@ -0,0 +1,91 @@
     1.4 +package org.apidesign.apifest08.test;
     1.5 +
     1.6 +import java.util.Currency;
     1.7 +
     1.8 +import junit.framework.TestCase;
     1.9 +
    1.10 +import org.apidesign.apifest08.currency.Convertor;
    1.11 +import org.apidesign.apifest08.currency.ConvertorFactory;
    1.12 +import org.apidesign.apifest08.currency.MoneyImpl;
    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 +	public static final Currency USD = Currency.getInstance("USD");
    1.22 +	public static final Currency CZK = Currency.getInstance("CZK");
    1.23 +	public static final Currency SKK = Currency.getInstance("SKK");
    1.24 +    public Task1Test(String testName) {
    1.25 +        super(testName);
    1.26 +    }
    1.27 +
    1.28 +    @Override
    1.29 +    protected void setUp() throws Exception {
    1.30 +    }
    1.31 +
    1.32 +    @Override
    1.33 +    protected void tearDown() throws Exception {
    1.34 +    }
    1.35 +
    1.36 +    /** Create convertor that understands two currencies, CZK and
    1.37 +     *  USD. Make 1 USD == 17 CZK.
    1.38 +     *
    1.39 +     * Creation of the convertor shall not require subclassing of any class
    1.40 +     * or interface on the client side.
    1.41 +     *
    1.42 +     * @return prepared convertor ready for converting USD to CZK and CZK to USD
    1.43 +     */
    1.44 +    public static Convertor createCZKtoUSD() {
    1.45 +      //You can use both variants. I wrote the first one but than I realized that maybe
    1.46 +      //you want me to write the second one. So I have written both. 
    1.47 +      return ConvertorFactory.createConvertor(CZK, USD);
    1.48 +      //return ConvertorFactory.createConvertor(new MoneyImpl(17,CZK), new MoneyImpl(1,USD));
    1.49 +    }
    1.50 +
    1.51 +    /** Create convertor that understands two currencies, CZK and
    1.52 +     *  SKK. Make 100 SKK == 80 CZK.
    1.53 +     *
    1.54 +     * Creation of the convertor shall not require subclassing of any class
    1.55 +     * or interface on the client side.
    1.56 +     * 
    1.57 +     * @return prepared convertor ready for converting SKK to CZK and CZK to SKK
    1.58 +     */
    1.59 +    public static Convertor createSKKtoCZK() {
    1.60 +    	//You can use both variants. I wrote the first one but than I realized that maybe
    1.61 +        //you want me to write the second one. So I have written both.
    1.62 +        //return ConvertorFactory.createConvertor(SKK, CZK);
    1.63 +        return ConvertorFactory.createConvertor(new MoneyImpl(100,SKK), new MoneyImpl(80,CZK));
    1.64 +    }
    1.65 +    
    1.66 +    /** Use the convertor from <code>createCZKtoUSD</code> method and do few conversions
    1.67 +     * with it.
    1.68 +     */
    1.69 +    public void testCurrencyCZKUSD() throws Exception {
    1.70 +        Convertor czkToUsdConvertor = createCZKtoUSD();
    1.71 +        // convert $5 to CZK using c:
    1.72 +        Convertor usdToCzkConvertor = czkToUsdConvertor.revert();
    1.73 +		assertEquals("Result is 85 CZK",new MoneyImpl(85,CZK), usdToCzkConvertor.convert(new MoneyImpl(5,USD)));
    1.74 +
    1.75 +        // convert $8 to CZK
    1.76 +        assertEquals("Result is 136 CZK",new MoneyImpl(136,CZK), usdToCzkConvertor.convert(new MoneyImpl(8,USD)));
    1.77 +
    1.78 +        // convert 1003CZK to USD
    1.79 +        assertEquals("Result is 59 USD", new MoneyImpl(59,USD), czkToUsdConvertor.convert(new MoneyImpl(1003,CZK)));
    1.80 +    }
    1.81 +
    1.82 +    /** Use the convertor from <code>createSKKtoCZK</code> method and do few conversions
    1.83 +     * with it.
    1.84 +     */
    1.85 +    public void testCurrencySKKCZK() throws Exception {
    1.86 +        Convertor skkToCzkConvertor = createSKKtoCZK();
    1.87 +        // convert 16CZK using c:
    1.88 +        assertEquals("Result is 20 SKK", new MoneyImpl(20,SKK), skkToCzkConvertor.revert().convert(new MoneyImpl(16,CZK)));
    1.89 +
    1.90 +        // convert 500SKK to CZK
    1.91 +        assertEquals("Result is 400 CZK", new MoneyImpl(400,CZK), skkToCzkConvertor.convert(new MoneyImpl(500,SKK)));
    1.92 +    }
    1.93 +}
    1.94 +