assertEquals("Emptied <= " + i,
assertEquals("Emptied <= " + i + "("+del+")"+result,
  public void testTypical() {    int del = 1; // setUp already makes one empty    for (int i = 0; i < m_Instances.numAttributes(); i++) {      makeEmpty(i, 0);      if (!m_Instances.attribute(i).isString() && (i != 1)) {        del++;      }      Instances result = useFilter();      assertEquals("Emptied <= " + i,                   m_Instances.numAttributes() - del,                    result.numAttributes());    }  }