HHH-15223 Add test for issue

Author: dreab8

hibernate-core/src/test/java/org/hibernate/orm/test/jpa/compliance/EmbeddableInQueryResultTest.java

@@ -0,0 +1,140 @@
+package org.hibernate.orm.test.jpa.compliance;
+
+import java.util.List;
+
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.orm.junit.EntityManagerFactoryScope;
+import org.hibernate.testing.orm.junit.Jpa;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.Embeddable;
+import jakarta.persistence.Embedded;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertNotSame;
+
+@Jpa(
+		annotatedClasses = {
+				EmbeddableInQueryResultTest.Person.class,
+		}
+)
+@TestForIssue( jiraKey = "HHH-15223")
+public class EmbeddableInQueryResultTest {
+
+	@BeforeEach
+	public void setUp(EntityManagerFactoryScope scope) {
+		scope.inTransaction(
+				entityManager -> {
+					Country italy = new Country( "Italy", "ITA" );
+					Person person = new Person( 1, "Ines", italy );
+
+					entityManager.persist( person );
+				}
+		);
+	}
+
+	@Test
+	public void testSelectEmbeddableIsNotInTheManagedState(EntityManagerFactoryScope scope) {
+		scope.inTransaction(
+				entityManager -> {
+					List<Object[]> results = entityManager.createQuery( "SELECT p, p.country FROM Person p " )
+							.getResultList();
+					assertThat( results.size() ).isEqualTo( 1 );
+
+					Object[] result = results.get( 0 );
+					Person person = (Person) result[0];
+					Country country = (Country) result[1];
+					assertNotSame( country, person.getCountry() );
+					country.setCode( "ITA_1" );
+				}
+		);
+
+		scope.inTransaction(
+				entityManager -> {
+					Person person = entityManager.find( Person.class, 1 );
+					assertThat( person.getCountry().getCode() ).isEqualTo( "ITA" );
+				}
+		);
+	}
+
+	@Entity(name = "Person")
+	@Table(name = "PERSON_TABLE")
+	public static class Person {
+		@Id
+		private Integer id;
+
+		private String name;
+
+		@Embedded
+		private Country country;
+
+		public Person() {
+		}
+
+		public Person(Integer id, String name, Country country) {
+			this.id = id;
+			this.name = name;
+			this.country = country;
+		}
+
+		public Integer getId() {
+			return id;
+		}
+
+		public void setId(Integer id) {
+			this.id = id;
+		}
+
+		public String getName() {
+			return name;
+		}
+
+		public void setName(String name) {
+			this.name = name;
+		}
+
+		public Country getCountry() {
+			return country;
+		}
+
+		public void setCountry(Country country) {
+			this.country = country;
+		}
+	}
+
+	@Embeddable
+	public static class Country {
+
+		private String country;
+
+		private String code;
+
+		public Country() {
+		}
+
+		public Country(String country, String code) {
+			this.country = country;
+			this.code = code;
+		}
+
+		public String getCountry() {
+			return country;
+		}
+
+		public void setCountry(String country) {
+			this.country = country;
+		}
+
+		public String getCode() {
+			return code;
+		}
+
+		public void setCode(String code) {
+			this.code = code;
+		}
+	}
+}