1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/task4/solution06/test/org/apidesign/apifest08/test/Task1Test.java Sat Oct 11 23:38:46 2008 +0200
1.3 @@ -0,0 +1,136 @@
1.4 +package org.apidesign.apifest08.test;
1.5 +
1.6 +import static org.apidesign.apifest08.test.Currencies.CZK;
1.7 +import static org.apidesign.apifest08.test.Currencies.SKK;
1.8 +import static org.apidesign.apifest08.test.Currencies.USD;
1.9 +
1.10 +import java.math.BigDecimal;
1.11 +
1.12 +import junit.framework.TestCase;
1.13 +
1.14 +import org.apidesign.apifest08.currency.Amount;
1.15 +import org.apidesign.apifest08.currency.ConversionException;
1.16 +import org.apidesign.apifest08.currency.Convertor;
1.17 +import org.apidesign.apifest08.currency.UnsupportedConversionException;
1.18 +
1.19 +/** Finish the Convertor API, and then write bodies of methods inside
1.20 + * of this class to match the given tasks. To fullfil your task, use the
1.21 + * API define in the <code>org.apidesign.apifest08.currency</code> package.
1.22 + * Do not you reflection, or other hacks as your code
1.23 + * shall run without any runtime permissions.
1.24 + */
1.25 +public class Task1Test extends TestCase {
1.26 + public Task1Test(String testName) {
1.27 + super(testName);
1.28 + }
1.29 +
1.30 + @Override
1.31 + protected void setUp() throws Exception {
1.32 + }
1.33 +
1.34 + @Override
1.35 + protected void tearDown() throws Exception {
1.36 + }
1.37 +
1.38 + /** Create convertor that understands two currencies, CZK and
1.39 + * USD. Make 1 USD == 17 CZK.
1.40 + *
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() {
1.47 + return new Convertor(new BigDecimal(17), USD, CZK);
1.48 + }
1.49 +
1.50 + /** Create convertor that understands two currencies, CZK and
1.51 + * SKK. Make 100 SKK == 80 CZK.
1.52 + *
1.53 + * Creation of the convertor shall not require subclassing of any class
1.54 + * or interface on the client side.
1.55 + *
1.56 + * @return prepared convertor ready for converting SKK to CZK and CZK to SKK
1.57 + */
1.58 + public static Convertor createSKKtoCZK() {
1.59 + return new Convertor(new BigDecimal("0.8"), SKK, CZK);
1.60 + }
1.61 +
1.62 + /** Use the convertor from <code>createCZKtoUSD</code> method and do few conversions
1.63 + * with it.
1.64 + */
1.65 + public void testCurrencyCZKUSD() throws Exception {
1.66 + Convertor c = createCZKtoUSD();
1.67 + // convert $5 to CZK using c:
1.68 + Amount result = c.convert(new BigDecimal(5), USD, CZK);
1.69 + assertEquals("Result is 85 CZK", 85, result.getValue().intValue());
1.70 +
1.71 + // convert $8 to CZK
1.72 + result = c.convert(new BigDecimal(8), USD, CZK);
1.73 + assertEquals("Result is 136 CZK", 136, result.getValue().intValue());
1.74 +
1.75 + // convert 1003CZK to USD
1.76 + result = c.convert(new BigDecimal(1003), CZK, USD);
1.77 + assertEquals("Result is 59 USD", 59, result.getValue().intValue());
1.78 + }
1.79 +
1.80 + /** Use the convertor from <code>createSKKtoCZK</code> method and do few conversions
1.81 + * with it.
1.82 + */
1.83 + public void testCurrencySKKCZK() throws Exception {
1.84 + Convertor c = createSKKtoCZK();
1.85 + // convert 16CZK using c:
1.86 + Amount result = c.convert(new BigDecimal(16), CZK, SKK);
1.87 + assertEquals("Result is 20 SKK", 20, result.getValue().intValue());
1.88 +
1.89 + // convert 500SKK to CZK
1.90 + result = c.convert(new BigDecimal(500), SKK, CZK);
1.91 + assertEquals("Result is 400 CZK", 400, result.getValue().intValue());
1.92 + }
1.93 +
1.94 +
1.95 + /**
1.96 + * Verify that the CZK to USD convertor knows nothing about SKK.
1.97 + */
1.98 + public void testCannotConvertToSKKwithCZKUSDConvertor() throws Exception {
1.99 + Convertor c = createCZKtoUSD();
1.100 + // convert $5 to SKK, the API shall say this is not possible
1.101 + try {
1.102 + c.convert(new BigDecimal(5), USD, SKK);
1.103 + fail("convert $5 to SKK, the API shall say this is not possible");
1.104 + } catch (ConversionException e) {
1.105 + //expected
1.106 + }
1.107 +
1.108 + // convert 500 SKK to CZK, the API shall say this is not possible
1.109 +
1.110 + try {
1.111 + c.convert(new BigDecimal("500"), SKK, CZK);
1.112 + fail("convert 500 SKK to CZK, the API shall say this is not possible");
1.113 + } catch (ConversionException e) {
1.114 + //expected
1.115 + }
1.116 + }
1.117 +
1.118 + /**
1.119 + * Verify that the CZK to SKK convertor knows nothing about USD.
1.120 + */
1.121 + public void testCannotConvertToSKKwithCZKSKKConvertor() throws Exception {
1.122 + Convertor c = createSKKtoCZK();
1.123 + // convert $5 to SKK, the API shall say this is not possible
1.124 + try {
1.125 + c.convert(new BigDecimal(5), USD, SKK);
1.126 + fail("convert $5 to SKK, the API shall say this is not possible");
1.127 + } catch(ConversionException e) {
1.128 + //expected
1.129 + }
1.130 +
1.131 + try {
1.132 + c.convert(new BigDecimal(500), CZK, USD);
1.133 + fail("convert 500 CZK to USD, the API shall say this is not possible");
1.134 + } catch(ConversionException e) {
1.135 + //expected
1.136 + }
1.137 + }
1.138 +}
1.139 +