fix testfunc parameters

Author: selik

pandas/tests/test_window.py

@@ -513,7 +513,7 @@ def test_multi_index_names(self):
  assert result.index.names == [None, '1', '2']
 
  @pytest.mark.parametrize('cls', [pd.Series, pd.DataFrame])
- def test_iter_raises(cls):
+ def test_iter_raises(self, cls):
  # https://github.com/pandas-dev/pandas/issues/11704
  # Iteration over a Window
  obj = cls([1, 2, 3, 4])
@@ -599,7 +599,7 @@ def test_missing_minp_zero(self):
  tm.assert_series_equal(result, expected)
 
  @pytest.mark.parametrize('cls', [pd.Series, pd.DataFrame])
- def test_iter_raises(cls):
+ def test_iter_raises(self, cls):
  # https://github.com/pandas-dev/pandas/issues/11704
  # Iteration over a Window
  obj = cls([1, 2, 3, 4])