text: import matplotlib.pyplot as plt
  from matplotlib.testing.decorators import image_comparison
  
  from mpl_toolkits.axisartist import AxisArtistHelperRectlinear
  from mpl_toolkits.axisartist.axis_artist import (AxisArtist, AxisLabel,
                                                   LabelBase, Ticks, TickLabels)
  
  
  @image_comparison(['axis_artist_ticks.png'], style='default')
  def test_ticks():
      fig, ax = plt.subplots()
  
      ax.xaxis.set_visible(False)
      ax.yaxis.set_visible(False)
  
      locs_angles = [((i / 10, 0.0), i * 30) for i in range(-1, 12)]
  
      ticks_in = Ticks(ticksize=10, axis=ax.xaxis)
      ticks_in.set_locs_angles(locs_angles)
      ax.add_artist(ticks_in)
  
      ticks_out = Ticks(ticksize=10, tick_out=True, color='C3', axis=ax.xaxis)
      ticks_out.set_locs_angles(locs_angles)
      ax.add_artist(ticks_out)
  
  
  @image_comparison(['axis_artist_labelbase.png'], style='default')
  def test_labelbase():
      # Remove this line when this test image is regenerated.
      plt.rcParams['text.kerning_factor'] = 6
  
      fig, ax = plt.subplots()
  
      ax.plot([0.5], [0.5], "o")
  
      label = LabelBase(0.5, 0.5, "Test")
      label._set_ref_angle(-90)
      label._set_offset_radius(offset_radius=50)
      label.set_rotation(-90)
      label.set(ha="center", va="top")
      ax.add_artist(label)
  
  
  @image_comparison(['axis_artist_ticklabels.png'], style='default')
  def test_ticklabels():
      # Remove this line when this test image is regenerated.
      plt.rcParams['text.kerning_factor'] = 6
  
      fig, ax = plt.subplots()
  
      ax.xaxis.set_visible(False)
      ax.yaxis.set_visible(False)
  
      ax.plot([0.2, 0.4], [0.5, 0.5], "o")
  
      ticks = Ticks(ticksize=10, axis=ax.xaxis)
      ax.add_artist(ticks)
      locs_angles_labels = [((0.2, 0.5), -90, "0.2"),
                            ((0.4, 0.5), -120, "0.4")]
      tick_locs_angles = [(xy, a + 180) for xy, a, l in locs_angles_labels]
      ticks.set_locs_angles(tick_locs_angles)
  
      ticklabels = TickLabels(axis_direction="left")
      ticklabels._locs_angles_labels = locs_angles_labels
      ticklabels.set_pad(10)
      ax.add_artist(ticklabels)
  
      ax.plot([0.5], [0.5], "s")
      axislabel = AxisLabel(0.5, 0.5, "Test")
      axislabel._set_offset_radius(20)
      axislabel._set_ref_angle(0)
      axislabel.set_axis_direction("bottom")
      ax.add_artist(axislabel)
  
      ax.set_xlim(0, 1)
      ax.set_ylim(0, 1)
  
  
  @image_comparison(['axis_artist.png'], style='default')
  def test_axis_artist():
      # Remove this line when this test image is regenerated.
      plt.rcParams['text.kerning_factor'] = 6
  
      fig, ax = plt.subplots()
  
      ax.xaxis.set_visible(False)
      ax.yaxis.set_visible(False)
  
      for loc in ('left', 'right', 'bottom'):
          _helper = AxisArtistHelperRectlinear.Fixed(ax, loc=loc)
          axisline = AxisArtist(ax, _helper, offset=None, axis_direction=loc)
          ax.add_artist(axisline)
  
      # Settings for bottom AxisArtist.
      axisline.set_label("TTT")
      axisline.major_ticks.set_tick_out(False)
      axisline.label.set_pad(5)
  
      ax.set_ylabel("Test")
  