@Test
public void test_extract_target_vars_missing_values() {

    // Missing VALUES keyword so should return empty array.
    String cmd = "SELECT * WHERE { ?o {?objs} ?s ?p ?o }";
    String valueName = "objs";
    String[] res = ParameterizedSparqlString.extractTargetVars(cmd, valueName);
    String[] exp = new String[]{};
    //System.out.println("Exp: " + String.join(",", exp));
    //System.out.println("Res: " + String.join(",", res));
    Assert.assertArrayEquals(exp, res);
}