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  package org.apache.cayenne.wocompat;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.net.URL;
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  import org.junit.Before;
  import org.junit.Test;
  
  public class EOModelHelperTest {
  
  	protected EOModelHelper helper;
  
  	@Before
  	public void setUp() throws Exception {
  		URL url = getClass().getClassLoader().getResource("wotests/art.eomodeld/");
  		assertNotNull(url);
  		helper = new EOModelHelper(url);
  	}
  
  	@Test
  	public void testModelNames() throws Exception {
  		Iterator names = helper.modelNames();
  
  		// collect to list and then analyze
  		List list = new ArrayList();
  		while (names.hasNext()) {
  			list.add(names.next());
  		}
  
  		assertEquals(8, list.size());
  		assertTrue(list.contains("Artist"));
  		assertTrue(list.contains("Painting"));
  		assertTrue(list.contains("ExhibitType"));
  	}
  
  	@Test
  	public void testQueryNames() throws Exception {
  		Iterator artistNames = helper.queryNames("Artist");
  		assertFalse(artistNames.hasNext());
  
  		Iterator etNames = helper.queryNames("ExhibitType");
  		assertTrue(etNames.hasNext());
  
  		// collect to list and then analyze
  		List list = new ArrayList();
  		while (etNames.hasNext()) {
  			list.add(etNames.next());
  		}
  
  		assertEquals(2, list.size());
  		assertTrue(list.contains("FetchAll"));
  		assertTrue(list.contains("TestQuery"));
  	}
  
  	@Test
  	public void testQueryPListMap() throws Exception {
  		assertNull(helper.queryPListMap("Artist", "AAA"));
  		assertNull(helper.queryPListMap("ExhibitType", "AAA"));
  
  		Map query = helper.queryPListMap("ExhibitType", "FetchAll");
  		assertNotNull(query);
  		assertFalse(query.isEmpty());
  	}
  
  	@Test
  	public void testLoadQueryIndex() throws Exception {
  		Map index = helper.loadQueryIndex("ExhibitType");
  		assertNotNull(index);
  		assertTrue(index.containsKey("FetchAll"));
  	}
  
  	@Test
  	public void testOpenQueryStream() throws Exception {
  		try (InputStream in = helper.openQueryStream("ExhibitType");) {
  			assertNotNull(in);
  		}
  	}
  
  	@Test
  	public void testOpenNonExistentQueryStream() throws Exception {
  		try {
  			helper.openQueryStream("Artist");
  			fail("Exception expected - artist has no fetch spec.");
  		} catch (IOException ioex) {
  			// expected...
  		}
  	}
  }
  