HHH-18511 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/cache/NaturalIdTest.java

@@ -0,0 +1,98 @@
+package org.hibernate.orm.test.cache;
+
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+import org.hibernate.annotations.NaturalId;
+import org.hibernate.annotations.NaturalIdCache;
+import org.hibernate.cfg.AvailableSettings;
+
+import org.hibernate.testing.orm.junit.DomainModel;
+import org.hibernate.testing.orm.junit.JiraKey;
+import org.hibernate.testing.orm.junit.ServiceRegistry;
+import org.hibernate.testing.orm.junit.SessionFactory;
+import org.hibernate.testing.orm.junit.SessionFactoryScope;
+import org.hibernate.testing.orm.junit.Setting;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+
+
+@DomainModel(annotatedClasses = { NaturalIdTest.TestEntity.class })
+@SessionFactory
+@ServiceRegistry(settings = {
+		@Setting(name = AvailableSettings.USE_SECOND_LEVEL_CACHE, value = "true"),
+		@Setting(name = AvailableSettings.USE_QUERY_CACHE, value = "true"),
+})
+@JiraKey("HHH_18511")
+public class NaturalIdTest {
+
+	@Test
+	void testGetNaturalIdentifierSnapshot(SessionFactoryScope scope) {
+		final var naturalId1 = "id1";
+		final var naturalId2 = "id2";
+
+		scope.inTransaction( session -> {
+			var testEntity = new TestEntity( 1l, naturalId1, naturalId2, "abc" );
+			session.persist( testEntity );
+			session.flush();
+
+			var sessionFactory = session.getFactory();
+			var entityPersister = sessionFactory.getRuntimeMetamodels()
+					.getMappingMetamodel()
+					.getEntityDescriptor( TestEntity.class );
+
+			Object[] naturalId = (Object[]) entityPersister.getNaturalIdentifierSnapshot( 1l, session );
+			assertThat( naturalId[0] ).isEqualTo( naturalId1 );
+			assertThat( naturalId[1] ).isEqualTo( naturalId2 );
+		} );
+	}
+
+	@Entity(name = "CompositeNaturalIdModel")
+	@Table(name = "CompositeNaturalIdModel")
+	@NaturalIdCache
+	@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
+	public static class TestEntity {
+
+		@Id
+		private Long id;
+
+		@NaturalId
+		private String naturalId1;
+
+		@NaturalId
+		private String naturalId2;
+
+		private String name;
+
+		public TestEntity() {
+		}
+
+		public TestEntity(Long id, String naturalId1, String naturalId2, String name) {
+			this.id = id;
+			this.naturalId1 = naturalId1;
+			this.naturalId2 = naturalId2;
+			this.name = name;
+		}
+
+		public Long getId() {
+			return id;
+		}
+
+		public String getNaturalId1() {
+			return naturalId1;
+		}
+
+
+		public String getNaturalId2() {
+			return naturalId2;
+		}
+
+		public String getName() {
+			return name;
+		}
+	}
+}