tests/org.simantics.db.tests/src/org/simantics/db/tests/api/support/undoRedoSupport/RedoTest2.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.tests.api.support.undoRedoSupport;
  13
  14 import org.junit.Test;
  15 import org.simantics.databoard.Bindings;
  16 import org.simantics.db.ReadGraph;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.Session;
  19 import org.simantics.db.WriteGraph;
  20 import org.simantics.db.common.request.ReadRequest;
  21 import org.simantics.db.common.request.WriteRequest;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.db.exception.NoSingleResultException;
  24 import org.simantics.db.service.UndoRedoSupport;
  25 import org.simantics.db.testing.base.ExistingDatabaseTest;
  26
  27 /**
  28  * Tests cases where a non-functional relation uses
  29  * {@link ReadGraph#getSingleObject(org.simantics.db.Resource, org.simantics.db.Resource)}
  30  * with > 1 objects.
  31  *
  32  * <p>
  33  * Should throw {@link NoSingleResultException}, at the time of writing this
  34  * test, AsyncBarrierImpl refcounting is trashed and DB client is stuck.
  35  */
  36 public class RedoTest2 extends ExistingDatabaseTest {
  37
  38         @Test
  39     public void testRedo2() throws DatabaseException {
  40
  41         Session session = getSession();
  42         final UndoRedoSupport support = session.getService(UndoRedoSupport.class);
  43         final Resource[] r = new Resource[2];
  44         try {
  45             session.syncRequest(new WriteRequest() {
  46                 @Override
  47                 public void perform(WriteGraph g) throws DatabaseException {
  48                     r[0] = g.newResource();
  49                     g.claimValue(r[0], "One", Bindings.STRING);
  50                     g.claimValue(r[0], "Two", Bindings.STRING);
  51                 }
  52             });
  53         } catch (Throwable e) {
  54             fail("Write transaction threw an unknown exception " + e);
  55         }
  56
  57         session.syncRequest(new ReadRequest() {
  58             @Override
  59             public void run(ReadGraph g) throws DatabaseException {
  60                 String v = g.getValue(r[0], Bindings.STRING);
  61                 if (!v.equals("Two"))
  62                         fail("ClaimValue did not work as expected.");
  63             }
  64         });
  65
  66         support.undo(session, 1);
  67         support.redo(session, 1);
  68
  69         session.syncRequest(new ReadRequest() {
  70             @Override
  71             public void run(ReadGraph g) throws DatabaseException {
  72                 String v = g.getValue(r[0], Bindings.STRING);
  73                 if (!v.equals("Two"))
  74                         fail("ClaimValue did not work as expected.");
  75             }
  76         });
  77     }
  78 }