HHH-16492 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/stream/JpaNativeQueryFlushSessionTest.java

@@ -0,0 +1,73 @@
+package org.hibernate.orm.test.stream;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.orm.junit.EntityManagerFactoryScope;
+import org.hibernate.testing.orm.junit.Jpa;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+
+@Jpa(
+		annotatedClasses = {
+				JpaNativeQueryFlushSessionTest.Person.class
+		}
+)
+@TestForIssue(jiraKey = "HHH-16492")
+public class JpaNativeQueryFlushSessionTest {
+
+	@AfterEach
+	public void tearDown(EntityManagerFactoryScope scope) {
+		scope.inTransaction(
+				entityManager -> {
+					entityManager.createQuery( "delete from Person " ).executeUpdate();
+				}
+		);
+	}
+
+	@Test
+	public void testSessionIsFlushedWhenNativeQueryIsExecuted(EntityManagerFactoryScope scope) {
+		scope.inTransaction(
+				entityManager -> {
+					List<String> resultList = entityManager
+							.createNativeQuery( "select name from Person where name ='John Doe'" )
+							.getResultList();
+					assertThat( resultList.size() ).isEqualTo( 0 );
+
+					Person person = new Person( 1l, "John Doe" );
+					entityManager.persist( person );
+
+					try (Stream<String> resultStream = entityManager
+							.createNativeQuery( "select name from Person where name ='John Doe'" )
+							.getResultStream()) {
+						List<String> results = resultStream.collect( Collectors.toList() );
+
+						assertThat( results.size() ).isEqualTo( 1 );
+					}
+				}
+		);
+	}
+
+	@Entity(name = "Person")
+	public static class Person {
+		@Id
+		private Long id;
+
+		private String name;
+
+		public Person() {
+		}
+
+		public Person(Long id, String name) {
+			this.id = id;
+			this.name = name;
+		}
+	}
+}

hibernate-core/src/test/java/org/hibernate/orm/test/stream/NativeQueryAndFlushSessionTest.java

@@ -0,0 +1,99 @@
+package org.hibernate.orm.test.stream;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.hibernate.testing.TestForIssue;
+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.AfterEach;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+
+@DomainModel(
+		annotatedClasses = {
+				NativeQueryAndFlushSessionTest.Person.class
+		}
+)
+@SessionFactory
+@TestForIssue(jiraKey = "HHH-16492")
+public class NativeQueryAndFlushSessionTest {
+
+	@AfterEach
+	public void tearDown(SessionFactoryScope scope) {
+		scope.inTransaction(
+				session -> {
+					session.createQuery( "delete from Person " ).executeUpdate();
+				}
+		);
+	}
+
+	@Test
+	public void testSessionIsNotFlushedWhenNativeQueryIsExecuted(SessionFactoryScope scope) {
+		scope.inTransaction(
+				session -> {
+					List<String> resultList = session
+							.createNativeQuery( "select name from Person where name ='John Doe'" )
+							.getResultList();
+					assertThat( resultList.size() ).isEqualTo( 0 );
+
+					Person person = new Person( 1l, "John Doe" );
+					session.persist( person );
+
+					try (Stream<String> resultStream = session
+							.createNativeQuery( "select name from Person where name ='John Doe'" )
+							.getResultStream()) {
+						List<String> results = resultStream.collect( Collectors.toList() );
+
+						assertThat( results.size() ).isEqualTo( 0 );
+					}
+				}
+		);
+	}
+
+	@Test
+	public void testSessionIsFlushedWhenNativeQueryIsExecuted(SessionFactoryScope scope) {
+		scope.inTransaction(
+				session -> {
+					List<String> resultList = session
+							.createNativeQuery( "select name from Person where name ='John Doe'" )
+							.getResultList();
+					assertThat( resultList.size() ).isEqualTo( 0 );
+
+					Person person = new Person( 1l, "John Doe" );
+					session.persist( person );
+
+					try (Stream<String> resultStream = session
+							.createNativeQuery( "select name from Person where name ='John Doe'" )
+							.addSynchronizedEntityClass( Person.class )
+							.getResultStream()) {
+						List<String> results = resultStream.collect( Collectors.toList() );
+
+						assertThat( results.size() ).isEqualTo( 1 );
+					}
+				}
+		);
+	}
+
+	@Entity(name = "Person")
+	public static class Person {
+		@Id
+		private Long id;
+
+		private String name;
+
+		public Person() {
+		}
+
+		public Person(Long id, String name) {
+			this.id = id;
+			this.name = name;
+		}
+	}
+}