1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/task2/solution10/test/org/apidesign/apifest08/test/Task1Test.java Wed Oct 01 10:43:05 2008 +0200
1.3 @@ -0,0 +1,134 @@
1.4 +package org.apidesign.apifest08.test;
1.5 +
1.6 +import junit.framework.*;
1.7 +import org.apidesign.apifest08.currency.*;
1.8 +
1.9 +import java.util.*;
1.10 +
1.11 +/** Finish the Convertor API, and then write bodies of methods inside
1.12 + * of this class to match the given tasks. To fullfil your task, use the
1.13 + * API define in the <code>org.apidesign.apifest08.currency</code> package.
1.14 + * Do not you reflection, or other hacks as your code
1.15 + * shall run without any runtime permissions.
1.16 + */
1.17 +public class Task1Test extends TestCase {
1.18 +
1.19 + private static final String
1.20 + USD = "USD",
1.21 + CZK = "CZK",
1.22 + SKK = "SKK";
1.23 +
1.24 + private static final Currency
1.25 + USD2 = Currency.getInstance(USD),
1.26 + CZK2 = Currency.getInstance(CZK),
1.27 + SKK2 = Currency.getInstance(SKK);
1.28 +
1.29 + public Task1Test(String testName) {
1.30 + super(testName);
1.31 + }
1.32 +
1.33 + @Override
1.34 + protected void setUp() throws Exception {
1.35 + }
1.36 +
1.37 + @Override
1.38 + protected void tearDown() throws Exception {
1.39 + }
1.40 +
1.41 + /** Create convertor that understands two currencies, CZK and
1.42 + * USD. Make 1 USD == 17 CZK.
1.43 + *
1.44 + * Creation of the convertor shall not require subclassing of any class
1.45 + * or interface on the client side.
1.46 + *
1.47 + * @return prepared convertor ready for converting USD to CZK and CZK to USD
1.48 + */
1.49 + public static CurrencyConverter createCZKtoUSD() {
1.50 + return OfflineConverterProvider.getInstance().getConverter(17, CZK, 1, USD);
1.51 + }
1.52 +
1.53 + public static CurrencyConverter createCZKtoUSD2() {
1.54 + return OfflineConverterProvider.getInstance().getConverter(CZK, USD);
1.55 + }
1.56 +
1.57 + /** Create convertor that understands two currencies, CZK and
1.58 + * SKK. Make 100 SKK == 80 CZK.
1.59 + *
1.60 + * Creation of the convertor shall not require subclassing of any class
1.61 + * or interface on the client side.
1.62 + *
1.63 + * @return prepared convertor ready for converting SKK to CZK and CZK to SKK
1.64 + */
1.65 + public static CurrencyConverter createSKKtoCZK() {
1.66 + return OfflineConverterProvider.getInstance().getConverter(100, SKK, 80, CZK);
1.67 + }
1.68 +
1.69 + public static CurrencyConverter createSKKtoCZK2() {
1.70 + return OfflineConverterProvider.getInstance().getConverter(SKK, CZK);
1.71 + }
1.72 +
1.73 + /** Use the convertor from <code>createCZKtoUSD</code> method and do few conversions
1.74 + * with it.
1.75 + */
1.76 + public void testCurrencyCZKUSD() throws Exception {
1.77 + CurrencyConverter c = createCZKtoUSD();
1.78 + testCZKUSD(c);
1.79 +
1.80 + // test without specifying rates
1.81 + c = createCZKtoUSD2();
1.82 + testCZKUSD(c);
1.83 + }
1.84 +
1.85 + private void testCZKUSD(CurrencyConverter c) {
1.86 + double czk, usd;
1.87 + // convert $5 to CZK using c:
1.88 + // assertEquals("Result is 85 CZK");
1.89 + czk = c.convert(5, USD, CZK);
1.90 + assertEquals(85.0, czk, 0.0);
1.91 + czk = c.convert(5, USD2, CZK2);
1.92 + assertEquals(85.0, czk, 0.0);
1.93 +
1.94 + // convert $8 to CZK
1.95 + // assertEquals("Result is 136 CZK");
1.96 + czk = c.convert(8, USD, CZK);
1.97 + assertEquals(136.0, czk, 0.0);
1.98 + czk = c.convert(8, USD2, CZK2);
1.99 + assertEquals(136.0, czk, 0.0);
1.100 +
1.101 + // convert 1003CZK to USD
1.102 + // assertEquals("Result is 59 USD");
1.103 + usd = c.convert(1003, CZK, USD);
1.104 + assertEquals(59.0, usd, 0.0);
1.105 + usd = c.convert(1003, CZK2, USD2);
1.106 + assertEquals(59.0, usd, 0.0);
1.107 + }
1.108 +
1.109 + /** Use the convertor from <code>createSKKtoCZK</code> method and do few conversions
1.110 + * with it.
1.111 + */
1.112 + public void testCurrencySKKCZK() throws Exception {
1.113 + CurrencyConverter c = createSKKtoCZK();
1.114 + testCZKSKK(c);
1.115 +
1.116 + // test without specifying rates
1.117 + c = createSKKtoCZK2();
1.118 + testCZKSKK(c);
1.119 + }
1.120 +
1.121 + private void testCZKSKK(CurrencyConverter c) {
1.122 + double czk, skk;
1.123 + // convert 16CZK using c:
1.124 + // assertEquals("Result is 20 SKK");
1.125 + skk = c.convert(16, CZK, SKK);
1.126 + assertEquals(20.0, skk, 0.0);
1.127 + skk = c.convert(16, CZK2, SKK2);
1.128 + assertEquals(20.0, skk, 0.0);
1.129 +
1.130 + // convert 500SKK to CZK
1.131 + // assertEquals("Result is 400 CZK");
1.132 + czk = c.convert(500, SKK, CZK);
1.133 + assertEquals(400.0, czk, 0.0);
1.134 + czk = c.convert(500, SKK2, CZK2);
1.135 + assertEquals(400.0, czk, 0.0);
1.136 + }
1.137 +}
1.138 \ No newline at end of file