code: def test_iso_with_sep_raises(sep_act, valid_sep, exception):
      parser = isoparser(sep=valid_sep)
      isostr = "2012-04-25" + sep_act + "01:25:00"
      with pytest.raises(exception):
          parser.isoparse(isostr)
  
imports: from __future__ import unicode_literals
  from datetime import datetime, timedelta, date, time
  import itertools
  from dateutil import tz
  from dateutil.tz import UTC
  from dateutil.parser import isoparser, isoparse
  import pytest
  import six
label_desc: Use image node_id 19 for calling a global function with example usage: test_iso_with_sep_raises(sep_act, valid_sep, exception) without return types