--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.tests.api.readGraph.getSingleObject;
+
+import org.junit.Test;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.Session;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.procedure.adapter.ListenerAdapter;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.NoSingleResultException;
+import org.simantics.db.request.Read;
+import org.simantics.db.testing.annotation.Fails;
+import org.simantics.db.testing.base.ExistingDatabaseTest;
+import org.simantics.layer0.Layer0;
+import org.simantics.utils.DataContainer;
+
+/**
+ * Tests cases where a non-functional relation uses
+ * {@link ReadGraph#getSingleObject(org.simantics.db.Resource, org.simantics.db.Resource)}
+ * with > 1 objects.
+ *
+ * <p>
+ * Should throw {@link NoSingleResultException}, at the time of writing this
+ * test, AsyncBarrierImpl refcounting is trashed and DB client is stuck.
+ */
+public class GetSingleObjectTest3_bak extends ExistingDatabaseTest {
+
+ @Test
+ public void testSingleObject() throws Exception {
+ Session session = getSession();
+
+ final DataContainer<Resource> nonfunctionalRelation = new DataContainer<Resource>();
+ final DataContainer<Resource> subject = new DataContainer<Resource>();
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ // Use any non-functional relation
+ Layer0 b = Layer0.getInstance(graph);
+
+ Resource rel = graph.newResource();
+ graph.claim(rel, b.SubrelationOf, b.IsRelatedTo);
+
+ Resource rel2 = graph.newResource();
+ graph.claim(rel2, b.SubrelationOf, rel);
+
+ Resource s = graph.newResource();
+ graph.claim(s, b.InstanceOf, b.Entity);
+
+ Resource o1 = graph.newResource();
+// Resource o2 = graph.newResource();
+
+ graph.claim(s, rel, o1);
+// graph.claim(s, rel, o2);
+
+ nonfunctionalRelation.set(rel);
+ subject.set(s);
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception " + e);
+ }
+
+ try {
+ session.syncRequest(new Read<Resource>() {
+ @Override
+ public Resource perform(ReadGraph graph) throws DatabaseException {
+ return graph.getSingleObject(subject.get(), nonfunctionalRelation.get());
+ }
+ }, new ListenerAdapter<Resource>() {
+
+ @Override
+ public boolean isDisposed() {
+ return false;
+ }
+
+ });
+ } catch (NoSingleResultException e) {
+ System.out.println("Read transaction threw an expected exception " + e);
+ } catch (Throwable e) {
+ fail("Read transaction threw an unexpected exception " + e);
+ }
+
+ if (DEBUG)
+ System.out.println("################################################");
+
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ graph.claim(subject.get(), nonfunctionalRelation.get(), nonfunctionalRelation.get());
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception " + e);
+ }
+
+ }
+
+}