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  package org.apache.cayenne.ejbql;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertSame;
  
  import org.apache.cayenne.di.Inject;
  import org.apache.cayenne.map.EntityResolver;
  import org.apache.cayenne.runtime.CayenneRuntime;
  import org.apache.cayenne.unit.di.runtime.CayenneProjects;
  import org.apache.cayenne.unit.di.runtime.RuntimeCase;
  import org.apache.cayenne.unit.di.runtime.UseCayenneRuntime;
  import org.junit.Before;
  import org.junit.Test;
  
  @UseCayenneRuntime(CayenneProjects.TESTMAP_PROJECT)
  public class EJBQLParser_CompileIT extends RuntimeCase {
  
  	@Inject
  	protected CayenneRuntime runtime;
  
  	private EJBQLParser parser;
  	private EntityResolver resolver;
  
  	@Before
  	public void before() {
  		resolver = runtime.getDataDomain().getEntityResolver();
  		parser = EJBQLParserFactory.getParser();
  	}
  
  	@Test
  	public void testGetSource() {
  		String source = "select a from Artist a";
  
  		EJBQLCompiledExpression select = parser.compile(source, resolver);
  		assertEquals(source, select.getSource());
  	}
  
  	@Test
  	public void testGetExpression() {
  		String source = "select a from Artist a";
  		EJBQLCompiledExpression select = parser.compile(source, resolver);
  		assertNotNull(select.getExpression());
  	}
  
  	@Test
  	public void testGetEntityDescriptor() {
  
  		EJBQLCompiledExpression select = parser.compile("select a from Artist a", resolver);
  
  		assertNotNull(select.getEntityDescriptor("a"));
  		assertSame(resolver.getClassDescriptor("Artist"), select.getEntityDescriptor("a"));
  
  		EJBQLCompiledExpression select1 = parser.compile("select p from Painting p WHERE p.toArtist.artistName = 'a'",
  				resolver);
  		assertNotNull(select1.getEntityDescriptor("p"));
  		assertSame(resolver.getClassDescriptor("Painting"), select1.getEntityDescriptor("p"));
  
  		assertNotNull(select1.getEntityDescriptor("p.toArtist"));
  		assertSame(resolver.getClassDescriptor("Artist"), select1.getEntityDescriptor("p.toArtist"));
  	}
  
  	@Test
  	public void testGetRootDescriptor() {
  
  		EJBQLCompiledExpression select = parser.compile("select a from Artist a", resolver);
  
  		assertSame("Root is not detected: " + select.getExpression(), resolver.getClassDescriptor("Artist"),
  				select.getRootDescriptor());
  	}
  
  	@Test
  	public void testGetEntityDescriptorCaseSensitivity() {
  
  		EJBQLCompiledExpression select1 = parser.compile("select a from Artist a", resolver);
  
  		assertNotNull(select1.getEntityDescriptor("a"));
  		assertNotNull(select1.getEntityDescriptor("A"));
  
  		EJBQLCompiledExpression select2 = parser.compile("select A from Artist A", resolver);
  
  		assertNotNull(select2.getEntityDescriptor("a"));
  		assertNotNull(select2.getEntityDescriptor("A"));
  
  		EJBQLCompiledExpression select3 = parser.compile("select a from Artist A", resolver);
  
  		assertNotNull(select3.getEntityDescriptor("a"));
  		assertNotNull(select3.getEntityDescriptor("A"));
  	}
  
  	/**
  	 * CAY-2175
  	 */
  	@Test
  	public void testGetEntityDescriptorCaseSensitivityInJoin() {
  		EJBQLCompiledExpression select1 = parser.compile(
  				"SELECT artistAlias FROM Artist artistAlias " +
  						"WHERE artistAlias.artistName = 'Abcd'",
  				resolver
  		);
  		assertNotNull(select1.getEntityDescriptor("artistalias"));
  		assertNotNull(select1.getEntityDescriptor("artistAlias"));
  		assertNotNull(select1.getEntityDescriptor("ArTiStAlIaS"));
  
  		EJBQLCompiledExpression select2 = parser.compile(
  				"SELECT artistalias from Artist AS ArtistAlias JOIN artistalias.paintingArray as PaintingAlias " +
  						"where aRtistALiaS.artistName = 'Abcd'",
  				resolver
  		);
  		assertNotNull(select2.getEntityDescriptor("artistalias"));
  		assertNotNull(select2.getEntityDescriptor("artistAlias"));
  		assertNotNull(select2.getEntityDescriptor("ArTiStAlIaS"));
  
  		assertNotNull(select2.getEntityDescriptor("PaintingAlias"));
  		assertNotNull(select2.getEntityDescriptor("paintingalias"));
  		assertNotNull(select2.getEntityDescriptor("PaInTinGAlIaS"));
  	}
  
  }
  