package org.apidesign.apifest08.currency;

 import static junit.framework.Assert.assertEquals;

 import static junit.framework.Assert.assertFalse;

 import static junit.framework.Assert.assertTrue;

 import static junit.framework.Assert.fail;

 import static org.apidesign.apifest08.test.Task1Test.CZK;

 import static org.apidesign.apifest08.test.Task1Test.SKK;

 import static org.apidesign.apifest08.test.Task1Test.USD;

 import org.junit.Test;

 public class CompositeConvertorTest {

 	private static final ExtendedConvertor USD_CZK_CONVERTOR = ConvertorFactory.createConvertor(new MoneyImpl(1,USD), new MoneyImpl(17,CZK));

 	private static final ExtendedConvertor SKK_CZK_CONVERTOR = ConvertorFactory.createConvertor(new MoneyImpl(100,SKK), new MoneyImpl(80,CZK));

 	@Test

 	public void testCompose()

 	{

 		ExtendedConvertor convertor = new CompositeConvertor(USD_CZK_CONVERTOR, SKK_CZK_CONVERTOR);

 		assertTrue(convertor.isConversionSupported(CZK, SKK));

 		assertTrue(convertor.isConversionSupported(CZK, USD));

 		assertFalse(convertor.isConversionSupported(SKK, USD));

 		assertEquals(new MoneyImpl(10,SKK), convertor.convert(new MoneyImpl(8,CZK), SKK));

 		assertEquals(new MoneyImpl(2,USD), convertor.convert(new MoneyImpl(34,CZK), USD));

 		try

 		{

 			convertor.convert(new MoneyImpl(34,SKK), USD);

 			fail("Exception expected");

 		}

 		catch(IllegalArgumentException e)

 		{

 			assertTrue("Ok", true);

 		}

 	}

 	@Test

 	public void testEmpty()

 	{

 		ExtendedConvertor convertor = new CompositeConvertor();

 		assertFalse(convertor.isConversionSupported(SKK, USD));

 		try

 		{

 			convertor.convert(new MoneyImpl(34,SKK), USD);

 			fail("Exception expected");

 		}

 		catch(IllegalArgumentException e)

 		{

 			assertTrue("Ok", true);

 		}

 	}

 	@Test(expected=NullPointerException.class)

 	public void testCreateNull()

 	{

 		new CompositeConvertor(USD_CZK_CONVERTOR, null);

 	}

 }