code: package it.unibz.inf.ontop.rdf4j.repository;
  
  import org.junit.AfterClass;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import java.io.IOException;
  import java.sql.SQLException;
  
  import static org.junit.Assert.assertEquals;
  
  public class Issue325Test extends AbstractRDF4JTest {
  
      private static final String R2RML_FILE = "/issue325/mapping.r2rml.ttl";
      private static final String SQL_SCRIPT = "/issue325/example.sql";
  
      @BeforeClass
      public static void before() throws IOException, SQLException {
          initR2RML(SQL_SCRIPT, R2RML_FILE);
      }
  
      @AfterClass
      public static void after() throws SQLException {
          release();
      }
      @Test
      public void testQuery() {
          int count = runQueryAndCount("SELECT * WHERE {\n" +
                  "\t?s <http://ex.com#ex2> ?s2\n" +
                  "}");
          assertEquals(count, 3);
      }
  }
  