tests/org.simantics.db.tests/src/org/simantics/db/tests/api/readGraph/getRelatedValue/GetRelatedValueTest27.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.readGraph.getRelatedValue;
  13
  14 import org.simantics.databoard.Bindings;
  15 import org.simantics.db.ReadGraph;
  16 import org.simantics.db.Resource;
  17 import org.simantics.db.WriteGraph;
  18 import org.simantics.db.exception.DatabaseException;
  19 import org.simantics.db.exception.NoSingleResultException;
  20 import org.simantics.db.testing.base.WriteReadTest;
  21
  22 public class GetRelatedValueTest27 extends WriteReadTest {
  23         private Float floatVal1 = 0.1F;
  24         private Float floatVal2 = 0.3F;
  25
  26         private Resource instance1;
  27         private Resource instance2;
  28
  29         private Resource type;
  30     @Override
  31     protected void write(WriteGraph graph) throws DatabaseException {
  32         instance1 = graph.newResource();
  33         instance2 = graph.newResource();
  34         type = graph.newResource();
  35         graph.claim(instance1, L0.InstanceOf, null,  L0.Float);
  36         graph.claim(instance2, L0.InstanceOf, null,  L0.Float);
  37
  38         graph.claimValue(instance1, floatVal1);
  39         graph.claimValue(instance2, floatVal2);
  40
  41         graph.claim(type, L0.ConsistsOf, instance1);
  42         graph.claim(type, L0.ConsistsOf, instance2);
  43     }
  44
  45     @Override
  46     protected void read(ReadGraph graph) throws DatabaseException {
  47         try {
  48             assertNotNull("Null response not allowed", graph.getRelatedValue(type, L0.ConsistsOf, Bindings.FLOAT));
  49         } catch (NoSingleResultException e) {
  50                 return;
  51         } catch (Exception e) {
  52                 fail("Wrong exception: " + e.getClass().getCanonicalName());
  53         }
  54         fail("Should throw.");
  55     }
  56 }