code: package it.unibz.inf.ontop.rdf4j.repository;
  
  import com.google.common.collect.ImmutableMap;
  import com.google.common.collect.ImmutableSet;
  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 EmptyQueryMappingTest extends AbstractRDF4JTest {
  
      private static final String R2RML_FILE = "/empty-query-mapping/mapping.ttl";
      private static final String SQL_SCRIPT = "/empty-query-mapping/database.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 test_mapping_started() {
          assertEquals(1, 1);
      }
  }
  