code: package it.unibz.inf.ontop.rdf4j.repository;
  
  import com.google.common.collect.ImmutableList;
  import org.junit.AfterClass;
  import org.junit.BeforeClass;
  import org.junit.Ignore;
  import org.junit.Test;
  
  import java.io.IOException;
  import java.sql.SQLException;
  
  public class TBoxFactTest extends AbstractRDF4JTest {
  
      // TODO: use another SQL script
      private static final String CREATE_DB_FILE = "/label_comment.sql";
      // TODO: use another mapping file
      private static final String OBDA_FILE = "/label_comment.obda";
      // TODO: use an ontology file
      private static final String OWL_FILE = null;
      // TODO: use a properties file
      private static final String PROPERTIES_FILE = null;
  
      @BeforeClass
      public static void before() throws IOException, SQLException {
          initOBDA(CREATE_DB_FILE, OBDA_FILE, OWL_FILE, PROPERTIES_FILE);
      }
  
      @AfterClass
      public static void after() throws SQLException {
          release();
      }
  
      /**
       * TODO: replace MY_CLASS_TO_TEST by a concrete class
       */
      @Ignore
      @Test
      public void testSubclasses() {
          String query = "SELECT  *\n" +
                  "WHERE {\n" +
                  "   ?v rdfs:subClassOf MY_CLASS_TO_TEST .\n" +
                  "}\n" +
                  "ORDER BY ?v";
  
          // TODO: provide the expected results
          ImmutableList<String> results = ImmutableList.of("testdata");
          runQueryAndCompare(query, results);
      }
  
      @Ignore
      @Test
      public void testRDFSClasses() {
          String query = "SELECT  *\n" +
                  "WHERE {\n" +
                  "   ?v a rdfs:Class .\n" +
                  "}\n" +
                  "ORDER BY ?v";
  
          runQueryAndCompare(query, getExpectedClasses());
      }
  
      @Ignore
      @Test
      public void testOWLClasses() {
          String query = "SELECT  *\n" +
                  "WHERE {\n" +
                  "   ?v a owl:Class .\n" +
                  "}\n" +
                  "ORDER BY ?v";
  
          runQueryAndCompare(query, getExpectedClasses());
      }
  
      /**
       * TODO: provide the list of expected classes
       */
      private ImmutableList<String> getExpectedClasses() {
          return ImmutableList.of("testdata");
      }
  
  
  }