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package org.apidesign.apifest08.currency;
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import static junit.framework.Assert.assertEquals;
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import static junit.framework.Assert.assertFalse;
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import static junit.framework.Assert.assertTrue;
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import static junit.framework.Assert.fail;
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import static org.apidesign.apifest08.test.Task1Test.CZK;
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import static org.apidesign.apifest08.test.Task1Test.SKK;
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import static org.apidesign.apifest08.test.Task1Test.USD;
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import org.junit.Test;
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public class CompositeConvertorTest {
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private static final ExtendedConvertor USD_CZK_CONVERTOR = ConvertorFactory.createConvertor(new MoneyImpl(1,USD), new MoneyImpl(17,CZK));
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private static final ExtendedConvertor SKK_CZK_CONVERTOR = ConvertorFactory.createConvertor(new MoneyImpl(100,SKK), new MoneyImpl(80,CZK));
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@Test
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public void testCompose()
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{
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ExtendedConvertor convertor = new CompositeConvertor(USD_CZK_CONVERTOR, SKK_CZK_CONVERTOR);
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assertTrue(convertor.isConversionSupported(CZK, SKK));
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assertTrue(convertor.isConversionSupported(CZK, USD));
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assertFalse(convertor.isConversionSupported(SKK, USD));
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assertEquals(new MoneyImpl(10,SKK), convertor.convert(new MoneyImpl(8,CZK), SKK));
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assertEquals(new MoneyImpl(2,USD), convertor.convert(new MoneyImpl(34,CZK), USD));
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try
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{
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convertor.convert(new MoneyImpl(34,SKK), USD);
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fail("Exception expected");
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}
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catch(IllegalArgumentException e)
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{
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assertTrue("Ok", true);
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}
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}
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@Test
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public void testEmpty()
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{
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ExtendedConvertor convertor = new CompositeConvertor();
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assertFalse(convertor.isConversionSupported(SKK, USD));
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try
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{
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convertor.convert(new MoneyImpl(34,SKK), USD);
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fail("Exception expected");
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}
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catch(IllegalArgumentException e)
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{
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assertTrue("Ok", true);
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}
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}
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@Test(expected=NullPointerException.class)
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public void testCreateNull()
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{
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new CompositeConvertor(USD_CZK_CONVERTOR, null);
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}
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}
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