From 9b189166827b0129b17a864873adb1c14fa03617 Mon Sep 17 00:00:00 2001
From: Marco Belladelli <marco@hibernate.org>
Date: Fri, 6 Oct 2023 10:37:48 +0200
Subject: [PATCH] HHH-17283 Add test for issue

---
 .../EmbeddedTupleSubqueryComparisonTest.java  | 88 +++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/EmbeddedTupleSubqueryComparisonTest.java

diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/EmbeddedTupleSubqueryComparisonTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/EmbeddedTupleSubqueryComparisonTest.java
new file mode 100644
index 0000000000..567b9be18c
--- /dev/null
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/EmbeddedTupleSubqueryComparisonTest.java
@@ -0,0 +1,88 @@
+/*
+ * 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;
+
+import org.hibernate.testing.orm.domain.gambit.EmbeddedIdEntity;
+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 static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Marco Belladelli
+ */
+@DomainModel( annotatedClasses = EmbeddedIdEntity.class )
+@SessionFactory
+@Jira( "https://hibernate.atlassian.net/browse/HHH-17283" )
+public class EmbeddedTupleSubqueryComparisonTest {
+	@BeforeAll
+	public void setUp(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			final EmbeddedIdEntity entity = new EmbeddedIdEntity();
+			entity.setId( new EmbeddedIdEntity.EmbeddedIdEntityId( 1, "1" ) );
+			session.persist( entity );
+		} );
+	}
+
+	@AfterAll
+	public void tearDown(SessionFactoryScope scope) {
+		scope.inTransaction( session -> session.createMutationQuery( "delete from EmbeddedIdEntity" ).executeUpdate() );
+	}
+
+	@Test
+	public void testIdSubquery(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			final EmbeddedIdEntity result = session.createQuery(
+					"from EmbeddedIdEntity e1 where e1.id in " +
+							"(select e2.id from EmbeddedIdEntity e2)",
+					EmbeddedIdEntity.class
+			).getSingleResult();
+			assertThat( result ).isNotNull();
+		} );
+	}
+
+	@Test
+	public void testJoinSubquery(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			final EmbeddedIdEntity result = session.createQuery(
+					"from EmbeddedIdEntity e1 where e1.id in " +
+							"(select e2_id from EmbeddedIdEntity e2 join e2.id as e2_id)",
+					EmbeddedIdEntity.class
+			).getSingleResult();
+			assertThat( result ).isNotNull();
+		} );
+	}
+
+	@Test
+	public void testExplicitTupleSubquery(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			final EmbeddedIdEntity result = session.createQuery(
+					"from EmbeddedIdEntity e1 where (e1.id.value1, e1.id.value2) in " +
+							"(select e2.id.value1, e2.id.value2 from EmbeddedIdEntity e2)",
+					EmbeddedIdEntity.class
+			).getSingleResult();
+			assertThat( result ).isNotNull();
+		} );
+	}
+
+	@Test
+	public void testEntitySubquery(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			final EmbeddedIdEntity result = session.createQuery(
+					"from EmbeddedIdEntity e1 where e1 in " +
+							"(select e2 from EmbeddedIdEntity e2)",
+					EmbeddedIdEntity.class
+			).getSingleResult();
+			assertThat( result ).isNotNull();
+		} );
+	}
+}