Added unit test for issue HHH-9199

(cherry picked from commit 85eca1aa01)

hibernate-envers/src/test/java/org/hibernate/envers/test/integration/collection/EmbeddableSet.java

@@ -0,0 +1,56 @@
+/**
+ * 
+ */
+package org.hibernate.envers.test.integration.collection;
+
+import static org.junit.Assert.assertEquals;
+
+import javax.persistence.EntityManager;
+
+import org.hibernate.envers.test.BaseEnversJPAFunctionalTestCase;
+import org.hibernate.envers.test.entities.collection.EmbeddableSetEntity;
+import org.hibernate.envers.test.entities.components.Component3;
+import org.hibernate.envers.test.tools.TestTools;
+import org.junit.Test;
+
+/**
+ * @author Felix Feisst (feisst dot felix at gmail dot com)
+ */
+public class EmbeddableSet extends BaseEnversJPAFunctionalTestCase {
+
+	@Override
+	protected Class<?>[] getAnnotatedClasses() {
+		return new Class<?>[] { EmbeddableSetEntity.class };
+	}
+
+	@Test
+	public void testRemoval() {
+		EntityManager em = getEntityManager();
+
+		final Component3 comp1 = new Component3( "comp1", null, null );
+		final Component3 comp2 = new Component3( "comp2", null, null );
+
+		EmbeddableSetEntity entity = new EmbeddableSetEntity();
+
+		em.getTransaction().begin();
+
+		entity.getComponentSet().add( comp1 );
+		entity.getComponentSet().add( comp2 );
+
+		em.persist( entity );
+
+		em.getTransaction().commit();
+
+		em.getTransaction().begin();
+
+		entity.getComponentSet().remove( comp1 );
+
+		em.getTransaction().commit();
+
+		EmbeddableSetEntity rev1 = getAuditReader().find( EmbeddableSetEntity.class, entity.getId(), 1 );
+		EmbeddableSetEntity rev2 = getAuditReader().find( EmbeddableSetEntity.class, entity.getId(), 2 );
+		assertEquals( "Unexpected components", TestTools.makeSet( comp1, comp2 ), rev1.getComponentSet() );
+		assertEquals( "Unexpected components", TestTools.makeSet( comp2 ), rev2.getComponentSet() );
+	}
+
+}