tests/org.simantics.db.tests/src/org/simantics/db/tests/api/readGraph/getPrincipalTypes/GetPrincipalTypesTest1.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.getPrincipalTypes;
  13
  14 import java.util.Collection;
  15
  16 import org.simantics.db.ReadGraph;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.WriteGraph;
  19 import org.simantics.db.exception.DatabaseException;
  20 import org.simantics.db.testing.base.WriteReadTest;
  21
  22 public class GetPrincipalTypesTest1 extends WriteReadTest {
  23
  24     private Resource type1;
  25     private Resource type2;
  26     private Resource instance1;
  27
  28     @Override
  29     protected void write(WriteGraph graph) throws DatabaseException {
  30         type1 = graph.newResource();
  31         graph.claim(type1, L0.Inherits, L0.Entity);
  32
  33         type2 = graph.newResource();
  34         graph.claim(type2, L0.Inherits, L0.Entity);
  35
  36         instance1 = graph.newResource();
  37         graph.claim(instance1, L0.InstanceOf,type1);
  38         graph.claim(instance1, L0.InstanceOf,type2);
  39
  40     }
  41
  42     @Override
  43     protected void read(ReadGraph graph) throws DatabaseException {
  44
  45         Collection<Resource> result = graph.getPrincipalTypes(instance1);
  46         assertNotNull("Null not allowed", result);
  47         int resultsSize = result.size();
  48         assertTrue("Null result.", (result != null));
  49         assertTrue("Wrong types", ((result.contains(type1) && (result.contains(type2)))));
  50         assertTrue("Wrong number of results: " + resultsSize,
  51                         (resultsSize == 2));
  52     }
  53 }