tests/org.simantics.db.tests/src/org/simantics/db/tests/api/request/exception/GraphSyncReadThrowsNoSingleResultException.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.request.exception;
  13
  14 import org.junit.Test;
  15 import org.simantics.db.ReadGraph;
  16 import org.simantics.db.Session;
  17 import org.simantics.db.exception.DatabaseException;
  18 import org.simantics.db.request.Read;
  19 import org.simantics.db.testing.base.ExistingDatabaseTest;
  20 import org.simantics.layer0.Layer0;
  21
  22 public class GraphSyncReadThrowsNoSingleResultException extends ExistingDatabaseTest {
  23
  24         @Test
  25         public void test() throws Exception {
  26
  27                 Session session = getSession();
  28
  29                 try {
  30
  31                 session.syncRequest(new Read<Object>() {
  32
  33                         @Override
  34                         public Object perform(ReadGraph graph) throws DatabaseException {
  35
  36                             return graph.syncRequest(new Read<Object>() {
  37
  38                         @Override
  39                         public Object perform(ReadGraph graph) throws DatabaseException {
  40                             Layer0 b = Layer0.getInstance(graph);
  41                             return graph.getSingleObject(graph.getRootLibrary(), b.Inherits);
  42                         }
  43
  44                             });
  45
  46
  47                         }
  48
  49                 });
  50
  51                 } catch(DatabaseException e) {
  52
  53                     if (DEBUG)
  54                         e.printStackTrace();
  55
  56                     return;
  57
  58                 } catch(Throwable t) {
  59
  60                 fail("syncRequest threw unexpected throwable " + t);
  61
  62                 }
  63
  64                 fail("syncRequest did not throw");
  65
  66         }
  67
  68 }