+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.tests.api.readGraph.getSingleType;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.NoSingleResultException;
+import org.simantics.db.testing.base.WriteReadTest;
+
+public class GetSingleTypeTest1 extends WriteReadTest {
+
+ private Resource type1;
+ private Resource type2;
+ private Resource instance1;
+
+ @Override
+ protected void write(WriteGraph graph) throws DatabaseException {
+ type1 = graph.newResource();
+ graph.claim(type1, L0.Inherits, L0.Entity);
+
+ type2 = graph.newResource();
+ graph.claim(type2, L0.Inherits, L0.Entity);
+
+ instance1 = graph.newResource();
+ graph.claim(instance1, L0.InstanceOf,type1);
+ graph.claim(instance1, L0.InstanceOf,type2);
+
+ }
+
+ @Override
+ protected void read(ReadGraph graph) throws DatabaseException {
+ try {
+ assertNotNull("Null not allowed",graph.getSingleType(instance1));
+ } catch (NoSingleResultException e) {
+ return;
+ } catch (Throwable t) {
+ fail("Wrong exception");
+ }
+ fail("Should throw");
+ }
+}