code: def test_subplots_layout_multi_column_error(self):
      # GH 6667
      df = DataFrame(
          np.random.default_rng(2).random((10, 3)),
          index=list(string.ascii_letters[:10]),
      )
      msg = "Layout of 1x1 must be larger than required size 3"
  
      with pytest.raises(ValueError, match=msg):
          df.plot(subplots=True, layout=(1, 1))
  
      msg = "At least one dimension of layout must be positive"
      with pytest.raises(ValueError, match=msg):
          df.plot(subplots=True, layout=(-1, -1))
  
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 10 for calling the TestDataFramePlotsSubplots obj's underlying member method code with example usage: obj.test_subplots_layout_multi_column_error() without return types