HHH-15998 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/instantiation/DynamicInstantiationWithJoinAndGroupAndOrderByByTest.java

@@ -0,0 +1,165 @@
+/*
+ * 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.query.hql.instantiation;
+
+import java.util.List;
+
+import org.hibernate.testing.orm.junit.DomainModel;
+import org.hibernate.testing.orm.junit.JiraKey;
+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 jakarta.persistence.ManyToOne;
+import jakarta.persistence.TypedQuery;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * @author Marco Belladelli
+ */
+@SessionFactory
+@DomainModel(annotatedClasses = {
+		DynamicInstantiationWithJoinAndGroupAndOrderByByTest.Item.class,
+		DynamicInstantiationWithJoinAndGroupAndOrderByByTest.ItemSale.class
+})
+@JiraKey("HHH-15998")
+public class DynamicInstantiationWithJoinAndGroupAndOrderByByTest {
+	@BeforeAll
+	public void setUp(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			Item item1 = new Item();
+			item1.setName( "Item 1" );
+			session.persist( item1 );
+
+			Item item2 = new Item();
+			item2.setName( "Item 2" );
+			session.persist( item2 );
+
+			ItemSale itemSale11 = new ItemSale();
+			itemSale11.setItem( item1 );
+			itemSale11.setTotal( 1d );
+			session.persist( itemSale11 );
+
+			ItemSale itemSale12 = new ItemSale();
+			itemSale12.setItem( item1 );
+			itemSale12.setTotal( 2d );
+			session.persist( itemSale12 );
+
+			ItemSale itemSale21 = new ItemSale();
+			itemSale21.setItem( item2 );
+			itemSale21.setTotal( 5d );
+			session.persist( itemSale21 );
+		} );
+	}
+
+	@AfterAll
+	public void tearDown(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			session.createMutationQuery( "delete from ItemSale" ).executeUpdate();
+			session.createMutationQuery( "delete from Item" ).executeUpdate();
+		} );
+	}
+
+	@Test
+	public void testInstantiationGroupByAndOrderBy(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			TypedQuery<Summary> query = session.createQuery(
+					"select new " + getClass().getName() + "$Summary(i, sum(is.total))" +
+							" from ItemSale is" +
+							" join is.item i" +
+							" group by i" +
+							" order by i"
+					,
+					Summary.class
+			);
+			List<Summary> resultList = query.getResultList();
+			assertEquals( 2, resultList.size() );
+			assertEquals( "Item 1", resultList.get( 0 ).getItem().getName() );
+			assertEquals( 3d, resultList.get( 0 ).getTotal() );
+			assertEquals( "Item 2", resultList.get( 1 ).getItem().getName() );
+			assertEquals( 5d, resultList.get( 1 ).getTotal() );
+		} );
+	}
+
+	@Entity(name = "Item")
+	public static class Item {
+		@Id
+		@GeneratedValue
+		private Long id;
+
+		private String name;
+
+		public Long getId() {
+			return id;
+		}
+
+		public String getName() {
+			return name;
+		}
+
+		public void setName(String name) {
+			this.name = name;
+		}
+	}
+
+	@Entity(name = "ItemSale")
+	public static class ItemSale {
+		@Id
+		@GeneratedValue
+		private Long id;
+
+		@ManyToOne(optional = false)
+		private Item item;
+
+		private Double total;
+
+		public Long getId() {
+			return id;
+		}
+
+		public Item getItem() {
+			return item;
+		}
+
+		public void setItem(Item item) {
+			this.item = item;
+		}
+
+		public Double getTotal() {
+			return total;
+		}
+
+		public void setTotal(Double total) {
+			this.total = total;
+		}
+	}
+
+	public static class Summary {
+		private final Item item;
+
+		private final Double total;
+
+		private Summary(Item item, Double total) {
+			this.item = item;
+			this.total = total;
+		}
+
+		public Item getItem() {
+			return item;
+		}
+
+		public Double getTotal() {
+			return total;
+		}
+	}
+}