HHH-15733 Add test for issue

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

@@ -0,0 +1,97 @@
+/*
+ * 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.map;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.hibernate.testing.orm.junit.DomainModel;
+import org.hibernate.testing.orm.junit.JiraKey;
+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.ElementCollection;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * @author Marco Belladelli
+ */
+@DomainModel(annotatedClasses = {
+		MapElementBaseTypeConversionTest.Customer.class
+})
+@SessionFactory
+@JiraKey("HHH-15733")
+public class MapElementBaseTypeConversionTest {
+	@BeforeAll
+	public void setUp(SessionFactoryScope scope) {
+		scope.inTransaction( (session) -> {
+			Customer customer = new Customer();
+			customer.getColors().put( "eyes", "blue" );
+			session.persist( customer );
+		} );
+	}
+
+	@AfterAll
+	public void tearDown(SessionFactoryScope scope) {
+		scope.inTransaction( session -> session.createMutationQuery( "delete from Customer" ).executeUpdate() );
+	}
+
+	@Test
+	public void testBasicElementCollectionConversion(SessionFactoryScope scope) {
+		scope.inTransaction( (session) -> {
+			Customer customer = session.find( Customer.class, 1 );
+			assertEquals( 1, customer.getColors().size() );
+			assertEquals( "blue", customer.getColors().get( "eyes" ) );
+		} );
+	}
+
+	@Entity(name = "Customer")
+	public static class Customer {
+		@Id
+		@GeneratedValue
+		private Integer id;
+
+		@ElementCollection(fetch = FetchType.EAGER)
+		@Convert(converter = MyStringConverter.class)
+		private final Map<String, String> colors = new HashMap<>();
+
+		public Customer() {
+		}
+
+		public Customer(Integer id) {
+			this.id = id;
+		}
+
+		public Map<String, String> getColors() {
+			return colors;
+		}
+	}
+
+	@Converter
+	public static class MyStringConverter implements AttributeConverter<String, String> {
+		@Override
+		public String convertToDatabaseColumn(String attribute) {
+			return new StringBuilder( attribute ).reverse().toString();
+		}
+
+		@Override
+		public String convertToEntityAttribute(String dbData) {
+			return new StringBuilder( dbData ).reverse().toString();
+		}
+	}
+}