def METHOD_NAME(prefix="tst_pdb_box_around_mol"):
  # test pdb format
  with open("%s.pdb" % prefix, 'w') as f:
    f.write(pdb_str)
  assert not easy_run.call("iotbx.pdb.box_around_molecule %s.pdb" % (
      prefix))
  assert_lines_in_file(file_name="%s_box_000.pdb" % prefix,
    lines="""\