code: def test_bar_log_no_subplots(self):
      # GH3254, GH3298 matplotlib/matplotlib#1882, #1892
      # regressions in 1.2.1
      expected = np.array([0.1, 1.0, 10.0, 100])
  
      # no subplots
      df = DataFrame(
          {"A": [3] * 5, "B": list(range(1, 6))}, index=range(5)
      )
      ax = df.plot.bar(grid=True, log=True)
      tm.assert_numpy_array_equal(ax.yaxis.get_ticklocs(), expected)
  
imports: import string
  import numpy
  import pytest
  from pandas.compat import is_platform_linux
  from pandas.compat.numpy import np_version_gte1p24
  import pandas
  from pandas import DataFrame, Series, date_range
  import pandas._testing
  from pandas.tests.plotting.common import _check_axes_shape, _check_box_return_type, _check_legend_labels, _check_ticks_props, _check_visible, _flatten_visible
  from pandas.io.formats.printing import pprint_thing
label_desc: Use image node_id 22 for calling the TestDataFramePlotsSubplots obj's underlying member method code with example usage: obj.test_bar_log_no_subplots() without return types