HHH-12375 - Add more tests

hibernate-core/src/test/java/org/hibernate/test/inheritance/discriminator/JoinedInheritanceEagerTest.java

@@ -23,15 +23,22 @@
  */
 package org.hibernate.test.inheritance.discriminator;
 
+import org.hibernate.Hibernate;
 import org.hibernate.Session;
 import org.hibernate.testing.TestForIssue;
 import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
 import org.junit.Assert;
+import org.junit.Before;
 import org.junit.Test;
 
 import javax.persistence.*;
+import java.util.List;
 import java.util.Set;
 
+import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.hibernate.testing.transaction.TransactionUtil.doInHibernate;
+
 /**
  * Test cases for joined inheritance with eager fetching.
  *
@@ -50,28 +57,100 @@ public class JoinedInheritanceEagerTest extends BaseCoreFunctionalTestCase {
 		};
 	}
 
+	@Before
+	public void setUp() {
+		doInHibernate( this::sessionFactory, session -> {
+			EntityC entityC = new EntityC( 1L );
+			EntityD entityD = new EntityD( 2L );
+
+			EntityB entityB = new EntityB( 3L );
+			entityB.setRelation( entityD );
+
+			EntityA entityA = new EntityA( 4L );
+			entityA.setRelation( entityC );
+
+			session.persist( entityC );
+			session.persist( entityD );
+			session.persist( entityA );
+			session.persist( entityB );
+		} );
+	}
+
+	@Override
+	protected boolean isCleanupTestDataRequired() {
+		return true;
+	}
+
 	@Test
-	@TestForIssue( jiraKey = "HHH-12375" )
+	@TestForIssue(jiraKey = "HHH-12375")
+	public void joinFindEntity() {
+		doInHibernate( this::sessionFactory, session -> {
+			EntityA entityA = session.get( EntityA.class, 4L );
+			Assert.assertTrue( Hibernate.isInitialized( entityA.getRelation() ) );
+			Assert.assertFalse( Hibernate.isInitialized( entityA.getAttributes() ) );
+		} );
+	}
+
+	@Test
+	@TestForIssue(jiraKey = "HHH-12375")
+	public void joinFindParenEntity() {
+		doInHibernate( this::sessionFactory, session -> {
+			BaseEntity baseEntity = session.get( BaseEntity.class, 4L );
+			Assert.assertThat( baseEntity, notNullValue() );
+			Assert.assertThat( baseEntity, instanceOf( EntityA.class ) );
+			Assert.assertTrue( Hibernate.isInitialized( ( (EntityA) baseEntity ).getRelation() ) );
+			Assert.assertFalse( Hibernate.isInitialized( ( (EntityA) baseEntity ).getAttributes() ) );
+		} );
+
+		doInHibernate( this::sessionFactory, session -> {
+			BaseEntity baseEntity = session.get( BaseEntity.class, 3L );
+			Assert.assertThat( baseEntity, notNullValue() );
+			Assert.assertThat( baseEntity, instanceOf( EntityB.class ) );
+			Assert.assertTrue( Hibernate.isInitialized( ( (EntityB) baseEntity ).getRelation() ) );
+			Assert.assertFalse( Hibernate.isInitialized( ( (EntityB) baseEntity ).getAttributes() ) );
+		} );
+	}
+
+	@Test
+	@TestForIssue(jiraKey = "HHH-12375")
 	public void joinUnrelatedCollectionOnBaseType() {
 		final Session s = openSession();
 		s.getTransaction().begin();
 
 		try {
-			s.createQuery("from BaseEntity b join b.attributes").list();
-			Assert.fail("Expected a resolution exception for property 'attributes'!");
-		} catch (IllegalArgumentException ex) {
-			Assert.assertTrue(ex.getMessage().contains("could not resolve property: attributes "));
-		} finally {
+			s.createQuery( "from BaseEntity b join b.attributes" ).list();
+			Assert.fail( "Expected a resolution exception for property 'attributes'!" );
+		}
+		catch (IllegalArgumentException ex) {
+			Assert.assertTrue( ex.getMessage().contains( "could not resolve property: attributes " ) );
+		}
+		finally {
 			s.getTransaction().commit();
 			s.close();
 		}
 	}
 
+	@Test
+	@TestForIssue(jiraKey = "HHH-12375")
+	public void selectBaseType() {
+		doInHibernate( this::sessionFactory, session -> {
+			List result = session.createQuery( "from BaseEntity" ).list();
+			Assert.assertEquals(result.size(), 2);
+		} );
+	}
+
 	@Entity(name = "BaseEntity")
 	@Inheritance(strategy = InheritanceType.JOINED)
 	public static class BaseEntity {
 		@Id
-		private long id;
+		private Long id;
+
+		public BaseEntity() {
+		}
+
+		public BaseEntity(Long id) {
+			this.id = id;
+		}
 	}
 
 	@Entity(name = "EntityA")
@@ -80,6 +159,25 @@ public class JoinedInheritanceEagerTest extends BaseCoreFunctionalTestCase {
 		private Set<EntityC> attributes;
 		@ManyToOne(fetch = FetchType.EAGER)
 		private EntityC relation;
+
+		public EntityA() {
+		}
+
+		public EntityA(Long id) {
+			super( id );
+		}
+
+		public void setRelation(EntityC relation) {
+			this.relation = relation;
+		}
+
+		public EntityC getRelation() {
+			return relation;
+		}
+
+		public Set<EntityC> getAttributes() {
+			return attributes;
+		}
 	}
 
 	@Entity(name = "EntityB")
@@ -88,18 +186,50 @@ public class JoinedInheritanceEagerTest extends BaseCoreFunctionalTestCase {
 		private Set<EntityD> attributes;
 		@ManyToOne(fetch = FetchType.EAGER)
 		private EntityD relation;
+
+		public EntityB() {
+		}
+
+		public EntityB(Long id) {
+			super( id );
+		}
+
+		public void setRelation(EntityD relation) {
+			this.relation = relation;
+		}
+
+		public EntityD getRelation() {
+			return relation;
+		}
+
+		public Set<EntityD> getAttributes() {
+			return attributes;
+		}
 	}
 
 	@Entity(name = "EntityC")
 	public static class EntityC {
 		@Id
-		private long id;
+		private Long id;
+
+		public EntityC() {
+		}
+
+		public EntityC(Long id) {
+			this.id = id;
+		}
 	}
 
 	@Entity(name = "EntityD")
 	public static class EntityD {
 		@Id
-		private long id;
-	}
+		private Long id;
 
+		public EntityD() {
+		}
+
+		public EntityD(Long id) {
+			this.id = id;
+		}
+	}
 }