HHH-18829 Test: Hibernate Core

Author: cigaly

hibernate-core/src/test/java/org/hibernate/orm/test/mapping/hhh18829/EmployeeWithoutIdClass.java

@@ -0,0 +1,17 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright Red Hat Inc. and Hibernate Authors
+ */
+package org.hibernate.orm.test.mapping.hhh18829;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+@Entity
+public class EmployeeWithoutIdClass {
+	@Id
+	String empName;
+	@Id
+	Integer empId;
+	String address;
+}

hibernate-core/src/test/java/org/hibernate/orm/test/mapping/hhh18829/HHH18829Test.java

@@ -0,0 +1,52 @@
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ * Copyright Red Hat Inc. and Hibernate Authors
+ */
+package org.hibernate.orm.test.mapping.hhh18829;
+
+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.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+import java.lang.reflect.InvocationTargetException;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@DomainModel(annotatedClasses = EmployeeWithoutIdClass.class)
+@JiraKey(" HHH-18829")
+@SessionFactory
+public class HHH18829Test {
+
+	@BeforeAll
+	void setUp(SessionFactoryScope sessionFactoryScope) {
+		sessionFactoryScope.inTransaction( sess -> {
+			final var one = new EmployeeWithoutIdClass();
+			one.empName = "John Doe";
+			one.empId = 1;
+			one.address = "10 Downing Street, SW1A 2AA";
+			sess.persist( one );
+
+			final var two = new EmployeeWithoutIdClass();
+			two.empName = "Dave Default";
+			two.empId = 1;
+			two.address = "1600 Pennsylvania Avenue";
+			sess.persist( two );
+		} );
+	}
+
+	@Test
+	public void test(SessionFactoryScope sessionFactoryScope)
+			throws ClassNotFoundException, InvocationTargetException, InstantiationException, IllegalAccessException {
+		final var idClass = Class.forName( EmployeeWithoutIdClass.class.getName() + "_$Id" );
+		final var id = idClass.getConstructors()[0].newInstance( 1, "John Doe" );
+		final var employees = sessionFactoryScope.fromSession(
+				sess -> sess.createQuery( "from EmployeeWithoutIdClass where id=:id", EmployeeWithoutIdClass.class ).setParameter( "id", id )
+						.getResultList()
+		);
+		assertEquals( 1, employees.size() );
+		assertEquals( "10 Downing Street, SW1A 2AA", employees.get( 0 ).address );
+	}
+}