diff -r 251d0ed461fb -r 58ec6da75f6f task4/solution06/test/org/apidesign/apifest08/test/Task1Test.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/task4/solution06/test/org/apidesign/apifest08/test/Task1Test.java	Sat Oct 11 23:38:46 2008 +0200
@@ -0,0 +1,136 @@
+package org.apidesign.apifest08.test;
+
+import static org.apidesign.apifest08.test.Currencies.CZK;
+import static org.apidesign.apifest08.test.Currencies.SKK;
+import static org.apidesign.apifest08.test.Currencies.USD;
+
+import java.math.BigDecimal;
+
+import junit.framework.TestCase;
+
+import org.apidesign.apifest08.currency.Amount;
+import org.apidesign.apifest08.currency.ConversionException;
+import org.apidesign.apifest08.currency.Convertor;
+import org.apidesign.apifest08.currency.UnsupportedConversionException;
+
+/** Finish the Convertor API, and then write bodies of methods inside
+ * of this class to match the given tasks. To fullfil your task, use the
+ * API define in the <code>org.apidesign.apifest08.currency</code> package.
+ * Do not you reflection, or other hacks as your code
+ * shall run without any runtime permissions.
+ */
+public class Task1Test extends TestCase {
+    public Task1Test(String testName) {
+        super(testName);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+    }
+
+    /** Create convertor that understands two currencies, CZK and
+     *  USD. Make 1 USD == 17 CZK.
+     *
+     * Creation of the convertor shall not require subclassing of any class
+     * or interface on the client side.
+     *
+     * @return prepared convertor ready for converting USD to CZK and CZK to USD
+     */
+    public static Convertor createCZKtoUSD() {
+        return new Convertor(new BigDecimal(17), USD, CZK);
+    }
+
+    /** Create convertor that understands two currencies, CZK and
+     *  SKK. Make 100 SKK == 80 CZK.
+     *
+     * Creation of the convertor shall not require subclassing of any class
+     * or interface on the client side.
+     * 
+     * @return prepared convertor ready for converting SKK to CZK and CZK to SKK
+     */
+    public static Convertor createSKKtoCZK() {
+    	return new Convertor(new BigDecimal("0.8"), SKK, CZK);
+    }
+    
+    /** Use the convertor from <code>createCZKtoUSD</code> method and do few conversions
+     * with it.
+     */
+    public void testCurrencyCZKUSD() throws Exception {
+        Convertor c = createCZKtoUSD();
+        // convert $5 to CZK using c:
+        Amount result =  c.convert(new BigDecimal(5), USD, CZK);
+        assertEquals("Result is 85 CZK", 85, result.getValue().intValue());
+
+        // convert $8 to CZK
+        result =  c.convert(new BigDecimal(8), USD, CZK);        
+        assertEquals("Result is 136 CZK", 136, result.getValue().intValue());
+
+        // convert 1003CZK to USD
+        result =  c.convert(new BigDecimal(1003), CZK, USD);
+        assertEquals("Result is 59 USD", 59, result.getValue().intValue());
+    }
+
+    /** Use the convertor from <code>createSKKtoCZK</code> method and do few conversions
+     * with it.
+     */
+    public void testCurrencySKKCZK() throws Exception {
+        Convertor c = createSKKtoCZK();
+        // convert 16CZK using c:
+        Amount result =  c.convert(new BigDecimal(16), CZK, SKK);
+        assertEquals("Result is 20 SKK", 20, result.getValue().intValue());
+
+        // convert 500SKK to CZK
+        result =  c.convert(new BigDecimal(500), SKK, CZK);
+        assertEquals("Result is 400 CZK", 400, result.getValue().intValue());
+    }
+    
+    
+    /**
+     *  Verify that the CZK to USD convertor knows nothing about SKK.
+     */
+     public void testCannotConvertToSKKwithCZKUSDConvertor() throws Exception {
+    	 Convertor c = createCZKtoUSD();
+    	 // convert $5 to SKK, the API shall say this is not possible
+    	 try {
+    		 c.convert(new BigDecimal(5), USD, SKK);
+    		 fail("convert $5 to SKK, the API shall say this is not possible");
+    	 } catch (ConversionException e) {
+    		 //expected
+    	 }
+    	 
+    	 // convert 500 SKK to CZK, the API shall say this is not possible
+    	 
+    	 try {
+    		 c.convert(new BigDecimal("500"), SKK, CZK);
+    		 fail("convert 500 SKK to CZK, the API shall say this is not possible");
+    	 } catch (ConversionException e) {
+    		 //expected
+    	 }
+     }
+    
+    /** 
+     * Verify that the CZK to SKK convertor knows nothing about USD.
+     */
+    public void testCannotConvertToSKKwithCZKSKKConvertor() throws Exception {
+    	Convertor c = createSKKtoCZK();
+    	// convert $5 to SKK, the API shall say this is not possible
+    	try {
+    		c.convert(new BigDecimal(5), USD, SKK);
+    		fail("convert $5 to SKK, the API shall say this is not possible");
+    	} catch(ConversionException e) {
+    		//expected
+    	}
+    	
+    	try {
+    		c.convert(new BigDecimal(500), CZK, USD);	
+    		fail("convert 500 CZK to USD, the API shall say this is not possible");
+    	} catch(ConversionException e) {
+    		//expected
+    	}
+    } 
+}
+