+/*******************************************************************************
+ * 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.support.undoRedoSupport;
+
+import org.junit.Test;
+import org.simantics.databoard.Bindings;
+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.request.ReadRequest;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.NoSingleResultException;
+import org.simantics.db.service.UndoRedoSupport;
+import org.simantics.db.testing.base.ExistingDatabaseTest;
+
+/**
+ * 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 RedoTest2 extends ExistingDatabaseTest {
+
+ @Test
+ public void testRedo2() throws DatabaseException {
+
+ Session session = getSession();
+ final UndoRedoSupport support = session.getService(UndoRedoSupport.class);
+ final Resource[] r = new Resource[2];
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph g) throws DatabaseException {
+ r[0] = g.newResource();
+ g.claimValue(r[0], "One", Bindings.STRING);
+ g.claimValue(r[0], "Two", Bindings.STRING);
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception " + e);
+ }
+
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph g) throws DatabaseException {
+ String v = g.getValue(r[0], Bindings.STRING);
+ if (!v.equals("Two"))
+ fail("ClaimValue did not work as expected.");
+ }
+ });
+
+ support.undo(session, 1);
+ support.redo(session, 1);
+
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph g) throws DatabaseException {
+ String v = g.getValue(r[0], Bindings.STRING);
+ if (!v.equals("Two"))
+ fail("ClaimValue did not work as expected.");
+ }
+ });
+ }
+}