tests/org.simantics.db.tests/src/org/simantics/db/tests/api/support/undoRedoSupport/UndoTest17.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.service.UndoRedoSupport;
  24 import org.simantics.db.testing.base.ExistingDatabaseTest;
  25 import org.simantics.layer0.Layer0;
  26 import org.simantics.utils.DataContainer;
  27
  28 /**
  29  * Tests undo of added value with deleted value as previous operation.
  30  */
  31 public class UndoTest17 extends ExistingDatabaseTest {
  32
  33     @Test
  34     public void testUndo1() throws Exception {
  35
  36         Session session = getSession();
  37         final UndoRedoSupport support = session.getService(UndoRedoSupport.class);
  38         final DataContainer<Resource> subject = new DataContainer<Resource>();
  39         final String value = "value";
  40
  41         try {
  42             session.syncRequest(new WriteRequest() {
  43                 @Override
  44                 public void perform(WriteGraph graph) throws DatabaseException {
  45                     Layer0 b = Layer0.getInstance(graph);
  46                     Resource s = graph.newResource();
  47                     graph.claim(s, b.InstanceOf, b.Entity);
  48                     graph.claimValue(s, value);
  49                     subject.set(s);
  50                 }
  51             });
  52         } catch (Throwable e) {
  53             fail("Write transaction threw an unknown exception ", e);
  54         }
  55
  56         try {
  57             session.syncRequest(new ReadRequest() {
  58                 @Override
  59                 public void run(ReadGraph graph) throws DatabaseException {
  60                     Resource s = subject.get();
  61                     if (!graph.hasStatement(s))
  62                         fail("Failed to verify modifications (stm).");
  63                     String t = graph.getValue(s, Bindings.STRING);
  64                     if (!t.equals(value))
  65                         fail("Failed to verify modifications (value).");
  66
  67                 }
  68             });
  69         } catch (Throwable e) {
  70             fail("Read transaction threw an unexpected exception ", e);
  71         }
  72
  73         try {
  74             session.syncRequest(new WriteRequest() {
  75                 @Override
  76                 public void perform(WriteGraph graph) throws DatabaseException {
  77                     Resource s = subject.get();
  78                     graph.denyValue(s);
  79                     subject.set(s);
  80                 }
  81             });
  82         } catch (Throwable e) {
  83             fail("Write transaction threw an unknown exception ", e);
  84         }
  85
  86         try {
  87             session.syncRequest(new ReadRequest() {
  88                 @Override
  89                 public void run(ReadGraph graph) throws DatabaseException {
  90                     Resource s = subject.get();
  91                     String t = graph.getPossibleValue(s);
  92                     if (null != t)
  93                         fail("Failed to verify removal of value.");
  94
  95                 }
  96             });
  97         } catch (Throwable e) {
  98             fail("Read transaction threw an unexpected exception ", e);
  99         }
 100
 101         try {
 102             session.syncRequest(new WriteRequest() {
 103                 @Override
 104                 public void perform(WriteGraph graph) throws DatabaseException {
 105                     Resource s = subject.get();
 106                     graph.claimValue(s, value);
 107                     subject.set(s);
 108                 }
 109             });
 110         } catch (Throwable e) {
 111             fail("Write transaction threw an unknown exception ", e);
 112         }
 113
 114         try {
 115             session.syncRequest(new ReadRequest() {
 116                 @Override
 117                 public void run(ReadGraph graph) throws DatabaseException {
 118                     Resource s = subject.get();
 119                     String t = graph.getValue(s, Bindings.STRING);
 120                     if (!t.equals(value))
 121                         fail("Failed to verify modifications (value).");
 122
 123                 }
 124             });
 125         } catch (Throwable e) {
 126             fail("Read transaction threw an unexpected exception ", e);
 127         }
 128
 129         try {
 130             support.undo(session, 1);
 131         } catch (Throwable e) {
 132             fail("Undo operation threw an unexpected exception.", e);
 133         }
 134
 135         try {
 136             session.syncRequest(new ReadRequest() {
 137                 @Override
 138                 public void run(ReadGraph graph) throws DatabaseException {
 139                     Resource s = subject.get();
 140                     String t = graph.getPossibleValue(s);
 141                     if (null != t)
 142                         fail("Failed to verify removal of value.");
 143
 144                 }
 145             });
 146         } catch (Throwable e) {
 147             fail("Read transaction threw an unexpected exception ", e);
 148         }
 149
 150     }
 151
 152 }
 153