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  package org.apache.cayenne.map;
  
  import org.apache.cayenne.DataRow;
  import org.apache.cayenne.exp.ExpressionFactory;
  import org.junit.Test;
  
  import java.util.Collections;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertSame;
  
  
  public class EntityInheritanceTreeTest {
  
      @Test
      public void testEntityMatchingRow_NoInheritance() {
          DataMap dataMap = new DataMap("map");
  
          DbEntity dbEntity = new DbEntity("e1");
          dbEntity.addAttribute(new DbAttribute("x"));
          dataMap.addDbEntity(dbEntity);
  
          ObjEntity entity = new ObjEntity("E1");
          entity.setDbEntityName(dbEntity.getName());
          dataMap.addObjEntity(entity);
  
          // no inheritance
          EntityInheritanceTree t1 = new EntityInheritanceTree(entity);
  
          DataRow row11 = new DataRow(5);
          row11.put("x", 1);
          assertSame(entity, t1.entityMatchingRow(row11));
  
          entity.setDeclaredQualifier(ExpressionFactory.matchDbExp("x", 2));
          assertNull(t1.entityMatchingRow(row11));
  
          DataRow row12 = new DataRow(5);
          row12.put("x", 2);
          assertSame(entity, t1.entityMatchingRow(row12));
  
      }
  
      @Test
      public void testEntityMatchingRow_SingleTableInheritance() {
          DataMap dataMap = new DataMap("map");
  
          DbEntity dbEntity = new DbEntity("e1");
          dbEntity.addAttribute(new DbAttribute("x"));
          dataMap.addDbEntity(dbEntity);
  
          ObjEntity entity = new ObjEntity("E1");
          entity.setDbEntityName(dbEntity.getName());
          entity.setDeclaredQualifier(ExpressionFactory.matchDbExp("x", 2));
          dataMap.addObjEntity(entity);
  
          ObjEntity subEntity = new ObjEntity("E2");
          subEntity.setSuperEntityName("E1");
          subEntity.setDeclaredQualifier(ExpressionFactory.matchDbExp("x", 1));
          dataMap.addObjEntity(subEntity);
  
          // creating EntityInheritanceTree via EntityResolver to ensure the entities are indexed
          EntityResolver resolver = new EntityResolver(Collections.singleton(dataMap));
          EntityInheritanceTree t1 = resolver.getInheritanceTree("E1");
  
          DataRow row11 = new DataRow(5);
          row11.put("x", 1);
  
          DataRow row12 = new DataRow(5);
          row12.put("x", 2);
  
          DataRow row13 = new DataRow(5);
          row13.put("x", 3);
  
          assertSame(subEntity, t1.entityMatchingRow(row11));
          assertSame(entity, t1.entityMatchingRow(row12));
          assertNull(t1.entityMatchingRow(row13));
      }
  
      @Test
      public void testEntityMatchingRow_CAY_2693() {
          DataMap dataMap = new DataMap("map");
  
          DbEntity dbEntity = new DbEntity("a");
          dbEntity.addAttribute(new DbAttribute("type"));
          dataMap.addDbEntity(dbEntity);
  
          ObjEntity entityA = new ObjEntity("A");
          entityA.setAbstract(true);
          entityA.setDbEntityName(dbEntity.getName());
          dataMap.addObjEntity(entityA);
  
          ObjEntity subEntityC = new ObjEntity("AC"); // name it AC so it would be sorted before B
          subEntityC.setSuperEntityName("A");
          subEntityC.setAbstract(true);
          dataMap.addObjEntity(subEntityC);
  
          ObjEntity subEntityB = new ObjEntity("B");
          subEntityB.setSuperEntityName("A");
          subEntityB.setDeclaredQualifier(ExpressionFactory.matchDbExp("type", 0));
          dataMap.addObjEntity(subEntityB);
  
          ObjEntity subEntityD = new ObjEntity("D");
          subEntityD.setSuperEntityName("AC");
          subEntityD.setDeclaredQualifier(ExpressionFactory.matchDbExp("type", 1));
          dataMap.addObjEntity(subEntityD);
  
          ObjEntity subEntityE = new ObjEntity("E");
          subEntityE.setSuperEntityName("AC");
          subEntityE.setDeclaredQualifier(ExpressionFactory.matchDbExp("type", 2));
          dataMap.addObjEntity(subEntityE);
  
          // creating EntityInheritanceTree via EntityResolver to ensure the entities are indexed
          EntityResolver resolver = new EntityResolver(Collections.singleton(dataMap));
          EntityInheritanceTree treeA = resolver.getInheritanceTree("A");
          EntityInheritanceTree treeC = resolver.getInheritanceTree("AC");
  
          DataRow row11 = new DataRow(5);
          row11.put("type", 0);
  
          DataRow row12 = new DataRow(5);
          row12.put("type", 1);
  
          DataRow row13 = new DataRow(5);
          row13.put("type", 2);
  
          assertSame(subEntityB, treeA.entityMatchingRow(row11));
          assertSame(subEntityD, treeA.entityMatchingRow(row12));
          assertSame(subEntityE, treeA.entityMatchingRow(row13));
  
          assertSame(subEntityD, treeC.entityMatchingRow(row12));
          assertSame(subEntityE, treeC.entityMatchingRow(row13));
  
          assertNull(treeA.qualifierForEntityAndSubclasses());
          assertEquals(ExpressionFactory.exp("(db:type = 1) or (db:type = 2)"), treeC.qualifierForEntityAndSubclasses());
      }
  }
  