HHH-16170 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/type/EnumUpdateTest.java

@@ -0,0 +1,80 @@
+/*
+ * 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.type;
+
+import java.util.List;
+
+import org.hibernate.testing.orm.junit.DomainModel;
+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.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * @author Marco Belladelli
+ */
+@SessionFactory
+@DomainModel(annotatedClasses = EnumUpdateTest.Person.class)
+public class EnumUpdateTest {
+	@BeforeAll
+	public void setUp(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			session.persist( new Person( HairColor.BLACK ) );
+			session.persist( new Person( HairColor.BROWN ) );
+		} );
+	}
+
+	@AfterAll
+	public void tearDown(SessionFactoryScope scope) {
+		scope.inTransaction( session -> session.createMutationQuery( "delete from Person" ).executeUpdate() );
+	}
+
+	@Test
+	public void testUpdate(SessionFactoryScope scope) {
+		scope.inTransaction(
+				session -> session.createMutationQuery( "update Person set hairColor = BROWN" ).executeUpdate()
+		);
+		scope.inTransaction( session -> {
+			List<Person> resultList = session.createQuery( "from Person", Person.class ).getResultList();
+			assertEquals( 2, resultList.size() );
+			assertEquals( HairColor.BROWN, resultList.get( 0 ).getHairColor() );
+			assertEquals( HairColor.BROWN, resultList.get( 1 ).getHairColor() );
+		} );
+	}
+
+	public enum HairColor {
+		BLACK, BLONDE, BROWN;
+	}
+
+	@Entity(name = "Person")
+	public static class Person {
+		@Id
+		@GeneratedValue
+		private Long id;
+
+		private HairColor hairColor;
+
+		public Person() {
+		}
+
+		public Person(HairColor hairColor) {
+			this.hairColor = hairColor;
+		}
+
+		public HairColor getHairColor() {
+			return hairColor;
+		}
+	}
+}