HHH-17071 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/mapping/converted/converter/ConvertedEmbeddableCollectionTest.java

@@ -0,0 +1,109 @@
+/*
+ * 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.mapping.converted.converter;
+
+import java.util.HashSet;
+import java.util.Set;
+
+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.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.AttributeConverter;
+import jakarta.persistence.Convert;
+import jakarta.persistence.Converter;
+import jakarta.persistence.Embeddable;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Marco Belladelli
+ */
+@DomainModel( annotatedClasses = {
+		ConvertedEmbeddableCollectionTest.TestEmbeddable.class,
+		ConvertedEmbeddableCollectionTest.TestEntity.class,
+} )
+@SessionFactory
+public class ConvertedEmbeddableCollectionTest {
+	@BeforeAll
+	public void setUp(SessionFactoryScope scope) {
+		scope.inTransaction( session -> {
+			final TestEntity entity = new TestEntity( 1L );
+			entity.getEmbeddables().add( new TestEmbeddable( "test" ) );
+			session.persist( entity );
+		} );
+	}
+
+	@AfterAll
+	public void tearDown(SessionFactoryScope scope) {
+		scope.inTransaction( session -> session.createMutationQuery( "delete from TestEntity" ).executeUpdate() );
+	}
+
+	@Test
+	public void testMapping(SessionFactoryScope scope) {
+		scope.inTransaction( session -> assertThat(
+				session.find( TestEntity.class, 1L )
+						.getEmbeddables()
+						.stream()
+						.map( TestEmbeddable::getData )
+		).containsExactly( "test" ) );
+	}
+
+	@Embeddable
+	public static class TestEmbeddable {
+		private String data;
+
+		public TestEmbeddable() {
+		}
+
+		public TestEmbeddable(String data) {
+			this.data = data;
+		}
+
+		public String getData() {
+			return data;
+		}
+	}
+
+	@Entity( name = "TestEntity" )
+	public static class TestEntity {
+		@Id
+		private Long id;
+
+		@Convert( converter = EmbeddableConverter.class )
+		private Set<TestEmbeddable> embeddables = new HashSet<>();
+
+		public TestEntity() {
+		}
+
+		public TestEntity(Long id) {
+			this.id = id;
+		}
+
+		public Set<TestEmbeddable> getEmbeddables() {
+			return embeddables;
+		}
+	}
+
+	@Converter
+	public static class EmbeddableConverter implements AttributeConverter<TestEmbeddable, String> {
+		@Override
+		public String convertToDatabaseColumn(TestEmbeddable attribute) {
+			return attribute.getData();
+		}
+
+		@Override
+		public TestEmbeddable convertToEntityAttribute(String dbData) {
+			return new TestEmbeddable( dbData );
+		}
+	}
+}