HHH-12906 Add tests

hibernate-core/src/test/java/org/hibernate/test/metamodel/MetamodelTest.java

@@ -0,0 +1,96 @@
+/*
+ * 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.metamodel;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+
+import java.util.Arrays;
+import java.util.Set;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.ManyToMany;
+
+import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
+import org.hibernate.testing.TestForIssue;
+import org.junit.Test;
+
+public class MetamodelTest extends BaseEntityManagerFunctionalTestCase {
+
+	@Test
+	@TestForIssue(jiraKey = "HHH-12906")
+	public void testGetAllCollectionRoles() {
+		String[] collectionRoles = entityManagerFactory().getMetamodel().getAllCollectionRoles();
+		Arrays.sort( collectionRoles );
+		assertArrayEquals( collectionRoles, new String[]{ EntityWithCollection.class.getName() + ".collection",
+				EntityWithCollection2.class.getName() + ".collection2" } );
+	}
+
+	@Test
+	public void testGetCollectionRolesByEntityParticipant() {
+		Set<String> collectionRolesByEntityParticipant = entityManagerFactory().getMetamodel()
+				.getCollectionRolesByEntityParticipant( ElementOfCollection.class.getName() );
+		assertEquals( 1, collectionRolesByEntityParticipant.size() );
+		assertEquals( EntityWithCollection.class.getName() + ".collection",
+				collectionRolesByEntityParticipant.iterator().next() );
+	}
+
+	@Test
+	public void testEntityNames() {
+		String[] entityNames = entityManagerFactory().getMetamodel().getAllEntityNames();
+		Arrays.sort( entityNames );
+		assertArrayEquals( entityNames,
+				new String[]{ ElementOfCollection.class.getName(), ElementOfCollection2.class.getName(),
+						EntityWithCollection.class.getName(), EntityWithCollection2.class.getName() } );
+	}
+
+	@Override
+	protected Class<?>[] getAnnotatedClasses() {
+		return new Class<?>[]{ EntityWithCollection.class, ElementOfCollection.class, EntityWithCollection2.class,
+				ElementOfCollection2.class };
+	}
+
+	@Entity(name = "EntityWithCollection")
+	public static class EntityWithCollection {
+
+		@Id
+		@GeneratedValue
+		private Long id;
+
+		@ManyToMany
+		private Set<ElementOfCollection> collection;
+	}
+
+	@Entity(name = "ElementOfCollection")
+	public static class ElementOfCollection {
+
+		@Id
+		@GeneratedValue
+		private Long id;
+	}
+
+	@Entity(name = "EntityWithCollection2")
+	public static class EntityWithCollection2 {
+
+		@Id
+		@GeneratedValue
+		private Long id;
+
+		@ManyToMany
+		private Set<ElementOfCollection2> collection2;
+	}
+
+	@Entity(name = "ElementOfCollection2")
+	public static class ElementOfCollection2 {
+
+		@Id
+		@GeneratedValue
+		private Long id;
+	}
+}