tests/org.simantics.db.tests/src/org/simantics/db/tests/api/request/exception/GraphSyncReadWithProcedureThrowsNPE.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.procedure.Procedure;
  19 import org.simantics.db.request.Read;
  20 import org.simantics.db.testing.base.ExistingDatabaseTest;
  21
  22 public class GraphSyncReadWithProcedureThrowsNPE extends ExistingDatabaseTest {
  23
  24     private String failure = null;
  25
  26         @Test
  27         public void test() throws Exception {
  28
  29                 Session session = getSession();
  30
  31                 try {
  32
  33                 session.syncRequest(new Read<Object>() {
  34
  35                         @Override
  36                         public Object perform(ReadGraph graph) throws DatabaseException {
  37
  38                             graph.syncRequest(new Read<Object>() {
  39
  40                         @SuppressWarnings("null")
  41                         @Override
  42                         public Object perform(ReadGraph graph) throws DatabaseException {
  43                             graph = null;
  44                             return graph.getBuiltin(ROOT_LIBRARY_URI);
  45                         }
  46
  47                             }, new Procedure<Object>() {
  48
  49                         @Override
  50                         public void exception(Throwable t) {
  51
  52                             if(!(t instanceof NullPointerException)) failure = "syncRequest did not throw the original exception";
  53
  54                                     if (DEBUG)
  55                                         t.printStackTrace();
  56
  57                         }
  58
  59                         @Override
  60                         public void execute(Object result) {
  61
  62                             failure = "Execute was called with " + result;
  63
  64                         }
  65
  66                             });
  67
  68                             return null;
  69
  70                         }
  71
  72                 });
  73
  74                 } catch(DatabaseException e) {
  75
  76             if(failure != null) fail(failure);
  77
  78                     if (DEBUG)
  79                         e.printStackTrace();
  80
  81                     return;
  82
  83                 } catch(Throwable t) {
  84
  85                 fail("syncRequest threw unexpected throwable " + t);
  86
  87                 }
  88
  89                 fail("syncRequest did not throw");
  90
  91         }
  92
  93 }