japod@56: package org.apidesign.apifest08.test;
japod@56: import static junit.framework.Assert.assertEquals;
japod@56: import static org.apidesign.apifest08.currency.MoneyImpl.money;
japod@56: import static org.apidesign.apifest08.test.Task1Test.CZK;
japod@56: import static org.apidesign.apifest08.test.Task1Test.USD;
japod@56: 
japod@56: import java.math.BigDecimal;
japod@56: 
japod@56: import org.apidesign.apifest08.currency.Convertor;
japod@56: import org.apidesign.apifest08.currency.Money;
japod@56: import org.junit.Test;
japod@56: 
japod@56: public class OnlineConvertorTest {
japod@56: 	private static final Money ONE_USD = money(1, USD);
japod@56: 
japod@56: 	@Test
japod@56: 	public void testBounce()
japod@56: 	{
japod@56: 		Convertor c = Task3Test.createOnlineCZKUSDConvertor();
japod@56: 		
japod@56: 		doBounceTest(c);
japod@56: 		doBounceTest(c);
japod@56: 	
japod@56: 	}
japod@56: 
japod@56: 	private void doBounceTest(Convertor c) {
japod@56: 		BigDecimal expectedRate = new BigDecimal(16);
japod@56: 		BigDecimal increment = new BigDecimal("0.01");
japod@56: 		
japod@56: 		for (int i=0;i<100;i++)
japod@56: 		{
japod@56: 			assertEquals(money(expectedRate,CZK), c.convert(ONE_USD, CZK));
japod@56: 			expectedRate = expectedRate.subtract(increment);
japod@56: 		}
japod@56: 		
japod@56: 		assertEquals(money(15,CZK), c.convert(ONE_USD, CZK));
japod@56: 		
japod@56: 		for (int i=0;i<99;i++)
japod@56: 		{
japod@56: 			expectedRate = expectedRate.add(increment);
japod@56: 			assertEquals(money(expectedRate,CZK), c.convert(ONE_USD, CZK));
japod@56: 		}
japod@56: 	}
japod@56: }