tests/org.simantics.db.tests/src/org/simantics/db/tests/api/readGraph/getAssertedObjects/GetAssertedObjectsTest1.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.getAssertedObjects;
  13
  14 import java.util.Collection;
  15 import java.util.UUID;
  16
  17 import org.simantics.db.ReadGraph;
  18 import org.simantics.db.Resource;
  19 import org.simantics.db.WriteGraph;
  20 import org.simantics.db.exception.DatabaseException;
  21 import org.simantics.db.testing.base.WriteReadTest;
  22 import org.simantics.db.tests.common.Writes;
  23
  24 public class GetAssertedObjectsTest1 extends WriteReadTest {
  25
  26     private Resource type;
  27     private Resource named1;
  28     private Resource named2;
  29     private Resource string1;
  30
  31     @Override
  32     protected void write(WriteGraph graph) throws DatabaseException {
  33
  34         // New type with assertions
  35         type = graph.newResource();
  36         graph.claim(type, L0.Inherits, L0.Entity);
  37
  38         named1 = Writes.named(graph, UUID.randomUUID().toString());
  39         named2 = Writes.named(graph, UUID.randomUUID().toString());
  40         string1 = Writes.string(graph, UUID.randomUUID().toString());
  41
  42         // Assert some nonfunctional objects
  43         graph.claim(type, L0.Asserts, Writes.assertion(graph, L0.ConsistsOf, named1));
  44         graph.claim(type, L0.Asserts, Writes.assertion(graph, L0.ConsistsOf, named2));
  45
  46         // Assert a functional object
  47         graph.claim(type, L0.Asserts, Writes.assertion(graph, L0.HasName, string1));
  48
  49     }
  50
  51     @Override
  52     protected void read(ReadGraph graph) throws DatabaseException {
  53
  54         Collection<Resource> result = graph.getAssertedObjects(type, L0.ConsistsOf);
  55         assertNotNull("Null not allowed", result);
  56         assert(result.size() == 2);
  57         assert(result.contains(named1));
  58         assert(result.contains(named2));
  59
  60         Collection<Resource> names = graph.getAssertedObjects(type, L0.HasName);
  61
  62         assert(names.size() == 1);
  63         assert(names.contains(string1));
  64
  65     }
  66
  67 }