code: def test_fillna_method_and_limit_invalid(self):
      # related GH#9217, make sure limit is an int and greater than 0
      ser = Series([1, 2, 3, None])
      msg = "|".join(
          [
              r"Cannot specify both 'value' and 'method'\.",
              "Limit must be greater than 0",
              "Limit must be an integer",
          ]
      )
      for limit in [-1, 0, 1.0, 2.0]:
          for method in ["backfill", "bfill", "pad", "ffill", None]:
              with pytest.raises(ValueError, match=msg):
                  ser.fillna(1, limit=limit, method=method)
  
imports: from datetime import datetime, timedelta, timezone
  import numpy
  import pytest
  import pytz
  from pandas import Categorical, DataFrame, DatetimeIndex, NaT, Period, Series, Timedelta, Timestamp, date_range, isna, timedelta_range
  import pandas._testing
  from pandas.core.arrays import period_array
label_desc: Use image node_id 30 for calling the TestSeriesFillNA obj's underlying member method code with example usage: obj.test_fillna_method_and_limit_invalid() without return types