HHH-17132 Added test case.

hibernate-core/src/test/java/org/hibernate/orm/test/annotations/naturalid/NaturalIdUniqueConstraintNameTest.java

@@ -0,0 +1,83 @@
+package org.hibernate.orm.test.annotations.naturalid;
+
+import java.util.Map;
+
+import org.hibernate.annotations.NaturalId;
+import org.hibernate.boot.Metadata;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.mapping.UniqueKey;
+
+import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
+import org.hibernate.testing.orm.junit.JiraKey;
+import org.junit.Test;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+import jakarta.persistence.UniqueConstraint;
+
+import static org.junit.Assert.assertEquals;
+
+@JiraKey("HHH-17132")
+public class NaturalIdUniqueConstraintNameTest extends BaseCoreFunctionalTestCase {
+
+	@Override
+	protected Class<?>[] getAnnotatedClasses() {
+		return new Class<?>[] { City.class };
+	}
+
+	@Test
+	public void testNaturalIdUsesUniqueConstraintName() {
+		Metadata metadata = new MetadataSources( serviceRegistry() )
+				.addAnnotatedClasses( getAnnotatedClasses() )
+				.buildMetadata();
+
+		Map<String, UniqueKey> uniqueKeys = metadata.getEntityBinding( City.class.getName() )
+				.getTable()
+				.getUniqueKeys();
+
+		// The unique key should not be duplicated for NaturalID + UniqueConstraint.
+		assertEquals( 1, uniqueKeys.size() );
+
+		// The unique key should use the name specified in UniqueConstraint.
+		UniqueKey uniqueKey = uniqueKeys.values().iterator().next();
+		assertEquals( "UK_zipCode_city", uniqueKey.getName() );
+	}
+
+	@Entity(name = "City")
+	@Table(uniqueConstraints = @UniqueConstraint(name = "UK_zipCode_city", columnNames = { "zipCode", "city" }))
+	public static class City {
+
+		@Id
+		private Long id;
+
+		@NaturalId
+		private String zipCode;
+		@NaturalId
+		private String city;
+
+		public Long getId() {
+			return id;
+		}
+
+		public void setId(Long id) {
+			this.id = id;
+		}
+
+		public String getZipCode() {
+			return zipCode;
+		}
+
+		public void setZipCode(String zipCode) {
+			this.zipCode = zipCode;
+		}
+
+		public String getCity() {
+			return city;
+		}
+
+		public void setCity(String city) {
+			this.city = city;
+		}
+	}
+}