code: def test_stacked_boxplot_set_axis(self):
      # GH2980
      import matplotlib.pyplot as plt
  
      n = 80
      df = DataFrame(
          {
              "Clinical": np.random.default_rng(2).choice(
                  [0, 1, 2, 3], n
              ),
              "Confirmed": np.random.default_rng(2).choice(
                  [0, 1, 2, 3], n
              ),
              "Discarded": np.random.default_rng(2).choice(
                  [0, 1, 2, 3], n
              ),
          },
          index=np.arange(0, n),
      )
      ax = df.plot(kind="bar", stacked=True)
      assert [
          int(x.get_text()) for x in ax.get_xticklabels()
      ] == df.index.to_list()
      ax.set_xticks(np.arange(0, 80, 10))
      plt.draw()  # Update changes
      assert [int(x.get_text()) for x in ax.get_xticklabels()] == list(
          np.arange(0, 80, 10)
      )
  
imports: import itertools
  import string
  import numpy
  import pytest
  from pandas import DataFrame, MultiIndex, Series, date_range, plotting, timedelta_range
  import pandas._testing
  from pandas.tests.plotting.common import _check_axes_shape, _check_box_return_type, _check_plot_works, _check_ticks_props, _check_visible
  from pandas.io.formats.printing import pprint_thing
label_desc: Use image node_id 1 for calling the TestDataFramePlots obj's underlying member method code with example usage: obj.test_stacked_boxplot_set_axis() without return types