HHH-12802 : test case

(cherry picked from commit 2ef777e3fe)

hibernate-core/src/test/java/org/hibernate/test/id/NonUniqueIdTest.java

@@ -0,0 +1,82 @@
+/*
+ * 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.test.id;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+import org.hibernate.HibernateException;
+
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.junit4.BaseNonConfigCoreFunctionalTestCase;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.hibernate.testing.transaction.TransactionUtil.doInHibernate;
+import static org.junit.Assert.fail;
+
+/**
+ * @author Gail Badner
+ */
+public class NonUniqueIdTest extends BaseNonConfigCoreFunctionalTestCase {
+
+	@Override
+	protected Class[] getAnnotatedClasses() {
+		return new Class[] { Category.class };
+	}
+
+	@Before
+	public void setup() {
+		doInHibernate(
+				this::sessionFactory,
+				session -> {
+					// drop and recreate table so it has no primary key
+
+					session.createNativeQuery(
+							"DROP TABLE CATEGORY"
+					).executeUpdate();
+
+					session.createNativeQuery(
+							"create table CATEGORY( id integer not null, name varchar(255) )"
+					).executeUpdate();
+
+					session.createNativeQuery( "insert into CATEGORY( id, name) VALUES( 1, 'clothes' )" )
+							.executeUpdate();
+					session.createNativeQuery( "insert into CATEGORY( id, name) VALUES( 1, 'shoes' )" )
+							.executeUpdate();
+
+				}
+		);
+	}
+
+	@Test
+	@TestForIssue( jiraKey = "HHH-12802" )
+	public void testLoadEntityWithNonUniqueId() {
+		doInHibernate(
+				this::sessionFactory,
+				session -> {
+					try {
+						session.get( Category.class, 1 );
+						fail( "should have failed because there are 2 entities with id == 1" );
+					}
+					catch ( HibernateException ex) {
+						// expected
+					}
+				}
+		);
+	}
+
+	@Entity
+	@Table(name = "CATEGORY")
+	public static class Category {
+		@Id
+		private int id;
+
+		private String name;
+	}
+}