HHH-17081 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/mapping/inheritance/joined/JoinedInheritanceOneToOneSameNameTest.java

@@ -0,0 +1,171 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later
+ * See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
+ */
+package org.hibernate.orm.test.mapping.inheritance.joined;
+
+import org.hibernate.testing.orm.junit.DomainModel;
+import org.hibernate.testing.orm.junit.Jira;
+import org.hibernate.testing.orm.junit.SessionFactory;
+import org.hibernate.testing.orm.junit.SessionFactoryScope;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.CascadeType;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import jakarta.persistence.Inheritance;
+import jakarta.persistence.InheritanceType;
+import jakarta.persistence.OneToOne;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Marco Belladelli
+ */
+@DomainModel( annotatedClasses = {
+		JoinedInheritanceOneToOneSameNameTest.Parent.class,
+		JoinedInheritanceOneToOneSameNameTest.Child.class,
+		JoinedInheritanceOneToOneSameNameTest.ChildA.class,
+		JoinedInheritanceOneToOneSameNameTest.ChildB.class,
+		JoinedInheritanceOneToOneSameNameTest.Something.class
+} )
+@SessionFactory
+@Jira( "https://hibernate.atlassian.net/browse/HHH-17104" )
+public class JoinedInheritanceOneToOneSameNameTest {
+	@BeforeAll
+	void setUp(SessionFactoryScope scope) {
+		scope.inTransaction( (session) -> {
+			session.persist( new Parent( 1L, null ) );
+			final ChildA childA = new ChildA( new Something() );
+			session.persist( childA );
+			session.persist( new Parent( 2L, childA ) );
+			final ChildB childB = new ChildB( new Something() );
+			session.persist( childB );
+			session.persist( new Parent( 3L, childB ) );
+		} );
+	}
+
+	@AfterAll
+	public void tearDown(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			session.createMutationQuery( "delete from Parent" ).executeUpdate();
+			session.createMutationQuery( "delete from Child" ).executeUpdate();
+			session.createMutationQuery( "delete from Something" ).executeUpdate();
+		} );
+	}
+
+	@Test
+	public void testFindParentById(SessionFactoryScope scope) {
+		scope.inTransaction( (session) -> {
+			final Parent parent = session.find( Parent.class, 1L );
+			assertThat( parent ).isNotNull();
+		} );
+	}
+
+	@Test
+	public void testFindParentWithChildById(SessionFactoryScope scope) {
+		scope.inTransaction( (session) -> {
+			final Parent parent = session.find( Parent.class, 2L );
+			assertThat( parent ).isNotNull();
+			assertThat( parent.getChild() ).isInstanceOf( ChildA.class );
+			assertThat( ( (ChildA) parent.getChild() ).getSomething() ).isNotNull();
+		} );
+	}
+
+	@Test
+	public void testQueryParentById(SessionFactoryScope scope) {
+		scope.inTransaction( (session) -> {
+			final Parent parent = session.createQuery( "select p from Parent p where p.id = :id", Parent.class )
+					.setParameter( "id", 1L )
+					.getSingleResult();
+			assertThat( parent ).isNotNull();
+		} );
+	}
+
+	@Test
+	public void testQueryParentWithChildById(SessionFactoryScope scope) {
+		scope.inTransaction( (session) -> {
+			final Parent parent = session.createQuery( "select p from Parent p where p.id = :id", Parent.class )
+					.setParameter( "id", 3L )
+					.getSingleResult();
+			assertThat( parent ).isNotNull();
+			assertThat( parent.getChild() ).isInstanceOf( ChildB.class );
+			assertThat( ( (ChildB) parent.getChild() ).getSomething() ).isNotNull();
+		} );
+	}
+
+	@Entity( name = "Parent" )
+	public static class Parent {
+		@Id
+		private Long id;
+
+		@OneToOne
+		private Child child;
+
+		public Parent() {
+		}
+
+		public Parent(Long id, Child child) {
+			this.id = id;
+			this.child = child;
+		}
+
+		public Child getChild() {
+			return child;
+		}
+	}
+
+	@Entity( name = "Child" )
+	@Inheritance( strategy = InheritanceType.JOINED )
+	public static class Child {
+		@Id
+		@GeneratedValue
+		private Long id;
+	}
+
+	@Entity( name = "ChildA" )
+	public static class ChildA extends Child {
+		@OneToOne( cascade = CascadeType.ALL )
+		private Something something;
+
+		public ChildA() {
+		}
+
+		public ChildA(Something something) {
+			this.something = something;
+		}
+
+		public Something getSomething() {
+			return something;
+		}
+	}
+
+	@Entity( name = "ChildB" )
+	public static class ChildB extends Child {
+		@OneToOne( cascade = CascadeType.ALL )
+		private Something something;
+
+		public ChildB() {
+		}
+
+		public ChildB(Something something) {
+			this.something = something;
+		}
+
+		public Something getSomething() {
+			return something;
+		}
+	}
+
+	@Entity( name = "Something" )
+	public static class Something {
+		@Id
+		@GeneratedValue
+		private Long id;
+	}
+}