From b8a97810843ff739cb98cb5159843f2836dbd8b3 Mon Sep 17 00:00:00 2001

From: Elliott Sales de Andrade <quantum.analyst@gmail.com>

Date: Sat, 31 Mar 2018 00:15:14 -0400

Subject: [PATCH 3/3] Increase some tolerances for 32-bit systems.

Signed-off-by: Elliott Sales de Andrade <quantum.analyst@gmail.com>

---

 lib/matplotlib/testing/decorators.py          |  2 +-

 lib/matplotlib/tests/test_artist.py           |  3 +-

 lib/matplotlib/tests/test_axes.py             | 47 +++++++++----------

 lib/matplotlib/tests/test_collections.py      |  2 +-

 lib/matplotlib/tests/test_colorbar.py         | 11 +++--

 .../tests/test_constrainedlayout.py           |  2 +-

 lib/matplotlib/tests/test_contour.py          |  6 +--

 lib/matplotlib/tests/test_image.py            |  2 +-

 lib/matplotlib/tests/test_mathtext.py         |  4 +-

 lib/matplotlib/tests/test_patches.py          |  3 +-

 lib/matplotlib/tests/test_patheffects.py      |  2 +-

 lib/matplotlib/tests/test_pickle.py           |  2 +-

 lib/matplotlib/tests/test_quiver.py           |  2 +-

 lib/matplotlib/tests/test_streamplot.py       |  3 +-

 lib/matplotlib/tests/test_transforms.py       |  2 +-

 .../tests/test_axisartist_floating_axes.py    |  4 +-

 ...test_axisartist_grid_helper_curvelinear.py |  6 +--

 lib/mpl_toolkits/tests/test_mplot3d.py        |  4 +-

 18 files changed, 53 insertions(+), 54 deletions(-)

diff --git a/lib/matplotlib/testing/decorators.py b/lib/matplotlib/testing/decorators.py

index 0ce6e6252..9a80eec1a 100644

--- a/lib/matplotlib/testing/decorators.py

+++ b/lib/matplotlib/testing/decorators.py

@@ -408,7 +408,7 @@ def _pytest_image_comparison(baseline_images, extensions, tol,

     return decorator

-def image_comparison(baseline_images, extensions=None, tol=0,

+def image_comparison(baseline_images, extensions=None, tol=0.1,

                      freetype_version=None, remove_text=False,

                      savefig_kwarg=None,

                      # Default of mpl_test_settings fixture and cleanup too.

diff --git a/lib/matplotlib/tests/test_artist.py b/lib/matplotlib/tests/test_artist.py

index e6aff72bf..b60305bcf 100644

--- a/lib/matplotlib/tests/test_artist.py

+++ b/lib/matplotlib/tests/test_artist.py

@@ -96,7 +96,8 @@ def test_collection_transform_of_none():

     assert isinstance(c._transOffset, mtransforms.IdentityTransform)

-@image_comparison(baseline_images=["clip_path_clipping"], remove_text=True)

+@image_comparison(baseline_images=["clip_path_clipping"], remove_text=True,

+                  tol=0.28)

 def test_clipping():

     exterior = mpath.Path.unit_rectangle().deepcopy()

     exterior.vertices *= 4

diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py

index 2fa6c2c94..8c589f514 100644

--- a/lib/matplotlib/tests/test_axes.py

+++ b/lib/matplotlib/tests/test_axes.py

@@ -555,7 +555,7 @@ def test_single_point():

     plt.plot('b', 'b', 'o', data=data)

-@image_comparison(baseline_images=['single_date'])

+@image_comparison(baseline_images=['single_date'], tol=1.97)

 def test_single_date():

     time1 = [721964.0]

     data1 = [-65.54]

@@ -739,8 +739,7 @@ def test_polar_rlabel_position():

     ax.tick_params(rotation='auto')

-@image_comparison(baseline_images=['polar_theta_wedge'], style='default',

-                  tol=0.01 if six.PY2 else 0)

+@image_comparison(baseline_images=['polar_theta_wedge'], style='default')

 def test_polar_theta_limits():

     r = np.arange(0, 3.0, 0.01)

     theta = 2*np.pi*r

@@ -1023,7 +1022,7 @@ def test_fill_between_interpolate():

 @image_comparison(baseline_images=['fill_between_interpolate_decreasing'],

-                  style='mpl20', remove_text=True)

+                  style='mpl20', remove_text=True, tol=0.78)

 def test_fill_between_interpolate_decreasing():

     p = np.array([724.3, 700, 655])

     t = np.array([9.4, 7, 2.2])

@@ -1105,7 +1104,7 @@ def test_pcolormesh():

 @image_comparison(baseline_images=['pcolormesh_datetime_axis'],

-                  extensions=['png'], remove_text=False)

+                  extensions=['png'], remove_text=False, tol=0.19)

 def test_pcolormesh_datetime_axis():

     fig = plt.figure()

     fig.subplots_adjust(hspace=0.4, top=0.98, bottom=.15)

@@ -1131,7 +1130,7 @@ def test_pcolormesh_datetime_axis():

 @image_comparison(baseline_images=['pcolor_datetime_axis'],

-                  extensions=['png'], remove_text=False)

+                  extensions=['png'], remove_text=False, tol=0.19)

 def test_pcolor_datetime_axis():

     fig = plt.figure()

     fig.subplots_adjust(hspace=0.4, top=0.98, bottom=.15)

@@ -1188,7 +1187,7 @@ def test_canonical():

 @image_comparison(baseline_images=['arc_angles'], remove_text=True,

-                  style='default', extensions=['png'])

+                  style='default', extensions=['png'], tol=0.17)

 def test_arc_angles():

     from matplotlib import patches

     # Ellipse parameters

@@ -2450,7 +2449,7 @@ def test_boxplot_mod_artist_after_plotting():

 @image_comparison(baseline_images=['violinplot_vert_baseline',

                                    'violinplot_vert_baseline'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.24)

 def test_vert_violinplot_baseline():

     # First 9 digits of frac(sqrt(2))

     np.random.seed(414213562)

@@ -2468,7 +2467,7 @@ def test_vert_violinplot_baseline():

 @image_comparison(baseline_images=['violinplot_vert_showmeans'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.23)

 def test_vert_violinplot_showmeans():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(3))

@@ -2479,7 +2478,7 @@ def test_vert_violinplot_showmeans():

 @image_comparison(baseline_images=['violinplot_vert_showextrema'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.23)

 def test_vert_violinplot_showextrema():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(5))

@@ -2490,7 +2489,7 @@ def test_vert_violinplot_showextrema():

 @image_comparison(baseline_images=['violinplot_vert_showmedians'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.23)

 def test_vert_violinplot_showmedians():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(7))

@@ -2501,7 +2500,7 @@ def test_vert_violinplot_showmedians():

 @image_comparison(baseline_images=['violinplot_vert_showall'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.2)

 def test_vert_violinplot_showall():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(11))

@@ -2512,7 +2511,7 @@ def test_vert_violinplot_showall():

 @image_comparison(baseline_images=['violinplot_vert_custompoints_10'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.22)

 def test_vert_violinplot_custompoints_10():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(13))

@@ -2523,7 +2522,7 @@ def test_vert_violinplot_custompoints_10():

 @image_comparison(baseline_images=['violinplot_vert_custompoints_200'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.22)

 def test_vert_violinplot_custompoints_200():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(17))

@@ -2534,7 +2533,7 @@ def test_vert_violinplot_custompoints_200():

 @image_comparison(baseline_images=['violinplot_horiz_baseline'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.2)

 def test_horiz_violinplot_baseline():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(19))

@@ -2545,7 +2544,7 @@ def test_horiz_violinplot_baseline():

 @image_comparison(baseline_images=['violinplot_horiz_showmedians'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.23)

 def test_horiz_violinplot_showmedians():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(23))

@@ -2556,7 +2555,7 @@ def test_horiz_violinplot_showmedians():

 @image_comparison(baseline_images=['violinplot_horiz_showmeans'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.25)

 def test_horiz_violinplot_showmeans():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(29))

@@ -2567,7 +2566,7 @@ def test_horiz_violinplot_showmeans():

 @image_comparison(baseline_images=['violinplot_horiz_showextrema'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.2)

 def test_horiz_violinplot_showextrema():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(31))

@@ -2578,7 +2577,7 @@ def test_horiz_violinplot_showextrema():

 @image_comparison(baseline_images=['violinplot_horiz_showall'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.19)

 def test_horiz_violinplot_showall():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(37))

@@ -2589,7 +2588,7 @@ def test_horiz_violinplot_showall():

 @image_comparison(baseline_images=['violinplot_horiz_custompoints_10'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.22)

 def test_horiz_violinplot_custompoints_10():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(41))

@@ -2600,7 +2599,7 @@ def test_horiz_violinplot_custompoints_10():

 @image_comparison(baseline_images=['violinplot_horiz_custompoints_200'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.22)

 def test_horiz_violinplot_custompoints_200():

     ax = plt.axes()

     # First 9 digits of frac(sqrt(43))

@@ -3947,7 +3946,7 @@ def test_psd_noise():

 @image_comparison(baseline_images=['csd_freqs'], remove_text=True,

-                  extensions=['png'], tol=0.002)

+                  extensions=['png'], tol=0.21)

 def test_csd_freqs():

     '''test axes.csd with sinusoidal stimuli'''

     n = 10000

@@ -4806,7 +4805,7 @@ def test_rc_spines():

 @image_comparison(baseline_images=['rc_grid'], extensions=['png'],

-                  savefig_kwarg={'dpi': 40})

+                  savefig_kwarg={'dpi': 40}, tol=0.2)

 def test_rc_grid():

     fig = plt.figure()

     rc_dict0 = {

@@ -5301,7 +5300,7 @@ def test_date_timezone_y():

 @image_comparison(baseline_images=['date_timezone_x_and_y'],

-                  extensions=['png'])

+                  extensions=['png'], tol=3.05)

 def test_date_timezone_x_and_y():

     # Tests issue 5575

     time_index = [pytz.timezone('UTC').localize(datetime.datetime(

diff --git a/lib/matplotlib/tests/test_collections.py b/lib/matplotlib/tests/test_collections.py

index 291647d17..265f23fed 100644

--- a/lib/matplotlib/tests/test_collections.py

+++ b/lib/matplotlib/tests/test_collections.py

@@ -467,7 +467,7 @@ def test_EllipseCollection():

 @image_comparison(baseline_images=['polycollection_close'],

-                  extensions=['png'], remove_text=True)

+                  extensions=['png'], remove_text=True, tol=0.45)

 def test_polycollection_close():

     from mpl_toolkits.mplot3d import Axes3D

diff --git a/lib/matplotlib/tests/test_colorbar.py b/lib/matplotlib/tests/test_colorbar.py

index 12a9bed3b..86d2358fb 100644

--- a/lib/matplotlib/tests/test_colorbar.py

+++ b/lib/matplotlib/tests/test_colorbar.py

@@ -95,7 +95,7 @@ def _colorbar_extension_length(spacing):

 @image_comparison(

         baseline_images=['colorbar_extensions_shape_uniform',

                          'colorbar_extensions_shape_proportional'],

-        extensions=['png'])

+        extensions=['png'], tol=0.16)

 def test_colorbar_extension_shape():

     '''Test rectangular colorbar extensions.'''

     # Create figures for uniform and proportionally spaced colorbars.

@@ -105,7 +105,7 @@ def test_colorbar_extension_shape():

 @image_comparison(baseline_images=['colorbar_extensions_uniform',

                                    'colorbar_extensions_proportional'],

-                  extensions=['png'])

+                  extensions=['png'], tol=0.25)

 def test_colorbar_extension_length():

     '''Test variable length colorbar extensions.'''

     # Create figures for uniform and proportionally spaced colorbars.

@@ -119,7 +119,7 @@ def test_colorbar_extension_length():

                                    'cbar_sharing',

                                    ],

                   extensions=['png'], remove_text=True,

-                  savefig_kwarg={'dpi': 40})

+                  savefig_kwarg={'dpi': 40}, tol=0.17)

 def test_colorbar_positioning():

     data = np.arange(1200).reshape(30, 40)

     levels = [0, 200, 400, 600, 800, 1000, 1200]

@@ -173,7 +173,7 @@ def test_colorbar_positioning():

 @image_comparison(baseline_images=['cbar_with_subplots_adjust'],

                   extensions=['png'], remove_text=True,

-                  savefig_kwarg={'dpi': 40})

+                  savefig_kwarg={'dpi': 40}, tol=0.17)

 def test_gridspec_make_colorbar():

     plt.figure()

     data = np.arange(1200).reshape(30, 40)

@@ -232,7 +232,8 @@ def test_colorbarbase():

 @image_comparison(

     baseline_images=['colorbar_closed_patch'],

-    remove_text=True)

+    remove_text=True,

+    tol=0.22)

 def test_colorbar_closed_patch():

     fig = plt.figure(figsize=(8, 6))

     ax1 = fig.add_axes([0.05, 0.85, 0.9, 0.1])

diff --git a/lib/matplotlib/tests/test_constrainedlayout.py b/lib/matplotlib/tests/test_constrainedlayout.py

index fcf633a08..cad431771 100644

--- a/lib/matplotlib/tests/test_constrainedlayout.py

+++ b/lib/matplotlib/tests/test_constrainedlayout.py

@@ -295,7 +295,7 @@ def test_constrained_layout12():

     ax.set_xlabel('x-label')

-@image_comparison(baseline_images=['constrained_layout13'], tol=2.e-2,

+@image_comparison(baseline_images=['constrained_layout13'], tol=3.e-2,

         extensions=['png'])

 def test_constrained_layout13():

     'Test that padding works.'

diff --git a/lib/matplotlib/tests/test_contour.py b/lib/matplotlib/tests/test_contour.py

index 42903ac68..f03a5d0af 100644

--- a/lib/matplotlib/tests/test_contour.py

+++ b/lib/matplotlib/tests/test_contour.py

@@ -217,7 +217,7 @@ def test_given_colors_levels_and_extends():

 @image_comparison(baseline_images=['contour_datetime_axis'],

-                  extensions=['png'], remove_text=False)

+                  extensions=['png'], remove_text=False, tol=0.18)

 def test_contour_datetime_axis():

     fig = plt.figure()

     fig.subplots_adjust(hspace=0.4, top=0.98, bottom=.15)

@@ -243,7 +243,7 @@ def test_contour_datetime_axis():

 @image_comparison(baseline_images=['contour_test_label_transforms'],

-                  extensions=['png'], remove_text=True)

+                  extensions=['png'], remove_text=True, tol=1.38)

 def test_labels():

     # Adapted from pylab_examples example code: contour_demo.py

     # see issues #2475, #2843, and #2818 for explanation

@@ -274,7 +274,7 @@ def test_labels():

 @image_comparison(baseline_images=['contour_corner_mask_False',

                                    'contour_corner_mask_True'],

-                  extensions=['png'], remove_text=True)

+                  extensions=['png'], remove_text=True, tol=0.19)

 def test_corner_mask():

     n = 60

     mask_level = 0.95

diff --git a/lib/matplotlib/tests/test_image.py b/lib/matplotlib/tests/test_image.py

index e6da25789..ed3ab63c9 100644

--- a/lib/matplotlib/tests/test_image.py

+++ b/lib/matplotlib/tests/test_image.py

@@ -768,7 +768,7 @@ def test_imshow_endianess():

 @image_comparison(baseline_images=['imshow_masked_interpolation'],

-                  remove_text=True, style='mpl20')

+                  remove_text=True, style='mpl20', tol=0.25)

 def test_imshow_masked_interpolation():

     cm = copy(plt.get_cmap('viridis'))

diff --git a/lib/matplotlib/tests/test_mathtext.py b/lib/matplotlib/tests/test_mathtext.py

index cdc1093e1..ac0d8bf05 100644

--- a/lib/matplotlib/tests/test_mathtext.py

+++ b/lib/matplotlib/tests/test_mathtext.py

@@ -173,7 +173,7 @@ def baseline_images(request, fontset, index):

                          ['cm', 'stix', 'stixsans', 'dejavusans',

                           'dejavuserif'])

 @pytest.mark.parametrize('baseline_images', ['mathtext'], indirect=True)

-@image_comparison(baseline_images=None)

+@image_comparison(baseline_images=None, tol=0.31)

 def test_mathtext_rendering(baseline_images, fontset, index, test):

     matplotlib.rcParams['mathtext.fontset'] = fontset

     fig = plt.figure(figsize=(5.25, 0.75))

@@ -187,7 +187,7 @@ def test_mathtext_rendering(baseline_images, fontset, index, test):

                          ['cm', 'stix', 'stixsans', 'dejavusans',

                           'dejavuserif'])

 @pytest.mark.parametrize('baseline_images', ['mathfont'], indirect=True)

-@image_comparison(baseline_images=None, extensions=['png'])

+@image_comparison(baseline_images=None, extensions=['png'], tol=0.3)

 def test_mathfont_rendering(baseline_images, fontset, index, test):

     matplotlib.rcParams['mathtext.fontset'] = fontset

     fig = plt.figure(figsize=(5.25, 0.75))

diff --git a/lib/matplotlib/tests/test_patches.py b/lib/matplotlib/tests/test_patches.py

index ff1abb9c6..cc90e6bb0 100644

--- a/lib/matplotlib/tests/test_patches.py

+++ b/lib/matplotlib/tests/test_patches.py

@@ -266,9 +266,8 @@ def test_wedge_movement():

         assert getattr(w, attr) == new_v

-# png needs tol>=0.06, pdf tol>=1.617

 @image_comparison(baseline_images=['wedge_range'],

-                  remove_text=True, tol=1.65 if on_win else 0)

+                  remove_text=True)

 def test_wedge_range():

     ax = plt.axes()

diff --git a/lib/matplotlib/tests/test_patheffects.py b/lib/matplotlib/tests/test_patheffects.py

index fe7265957..2addc35ed 100644

--- a/lib/matplotlib/tests/test_patheffects.py

+++ b/lib/matplotlib/tests/test_patheffects.py

@@ -121,7 +121,7 @@ def test_SimplePatchShadow_offset():

     assert pe._offset == (4, 5)

-@image_comparison(baseline_images=['collection'], tol=0.02)

+@image_comparison(baseline_images=['collection'], tol=0.084)

 def test_collection():

     x, y = np.meshgrid(np.linspace(0, 10, 150), np.linspace(-5, 5, 100))

     data = np.sin(x) + np.cos(y)

diff --git a/lib/matplotlib/tests/test_pickle.py b/lib/matplotlib/tests/test_pickle.py

index 89a5a512e..a25961284 100644

--- a/lib/matplotlib/tests/test_pickle.py

+++ b/lib/matplotlib/tests/test_pickle.py

@@ -42,7 +42,7 @@ def test_simple():

 @image_comparison(baseline_images=['multi_pickle'],

                   extensions=['png'], remove_text=True,

-                  style='mpl20')

+                  style='mpl20', tol=0.11)

 def test_complete():

     fig = plt.figure('Figure with a label?', figsize=(10, 6))

diff --git a/lib/matplotlib/tests/test_quiver.py b/lib/matplotlib/tests/test_quiver.py

index a0e1e674f..ede6bfc64 100644

--- a/lib/matplotlib/tests/test_quiver.py

+++ b/lib/matplotlib/tests/test_quiver.py

@@ -131,7 +131,7 @@ def test_quiver_key_pivot():

 @image_comparison(baseline_images=['barbs_test_image'],

-                  extensions=['png'], remove_text=True)

+                  extensions=['png'], remove_text=True, tol=0.11)

 def test_barbs():

     x = np.linspace(-5, 5, 5)

     X, Y = np.meshgrid(x, x)

diff --git a/lib/matplotlib/tests/test_streamplot.py b/lib/matplotlib/tests/test_streamplot.py

index 4f70ce861..5bc8184f7 100644

--- a/lib/matplotlib/tests/test_streamplot.py

+++ b/lib/matplotlib/tests/test_streamplot.py

@@ -39,8 +39,7 @@ def test_startpoints():

     plt.plot(start_x, start_y, 'ok')

-@image_comparison(baseline_images=['streamplot_colormap'],

-                  tol=.02)

+@image_comparison(baseline_images=['streamplot_colormap'])

 def test_colormap():

     X, Y, U, V = velocity_field()

     plt.streamplot(X, Y, U, V, color=U, density=0.6, linewidth=2,

diff --git a/lib/matplotlib/tests/test_transforms.py b/lib/matplotlib/tests/test_transforms.py

index 06985db84..8efaef898 100644

--- a/lib/matplotlib/tests/test_transforms.py

+++ b/lib/matplotlib/tests/test_transforms.py

@@ -74,7 +74,7 @@ def test_external_transform_api():

 @image_comparison(baseline_images=['pre_transform_data'],

-                  tol=0.08)

+                  tol=0.155)

 def test_pre_transform_plotting():

     # a catch-all for as many as possible plot layouts which handle

     # pre-transforming the data NOTE: The axis range is important in this

diff --git a/lib/mpl_toolkits/tests/test_axisartist_floating_axes.py b/lib/mpl_toolkits/tests/test_axisartist_floating_axes.py

index de7226609..2676fc842 100644

--- a/lib/mpl_toolkits/tests/test_axisartist_floating_axes.py

+++ b/lib/mpl_toolkits/tests/test_axisartist_floating_axes.py

@@ -24,7 +24,7 @@ def test_subplot():

 @image_comparison(baseline_images=['curvelinear3'],

-                  extensions=['png'], style='default', tol=0.01)

+                  extensions=['png'], style='default', tol=0.02)

 def test_curvelinear3():

     fig = plt.figure(figsize=(5, 5))

     fig.clf()

@@ -80,7 +80,7 @@ def test_curvelinear3():

 @image_comparison(baseline_images=['curvelinear4'],

-                  extensions=['png'], style='default', tol=0.01)

+                  extensions=['png'], style='default', tol=0.055)

 def test_curvelinear4():

     fig = plt.figure(figsize=(5, 5))

     fig.clf()

diff --git a/lib/mpl_toolkits/tests/test_axisartist_grid_helper_curvelinear.py b/lib/mpl_toolkits/tests/test_axisartist_grid_helper_curvelinear.py

index a7c637428..e22f4ac3e 100644

--- a/lib/mpl_toolkits/tests/test_axisartist_grid_helper_curvelinear.py

+++ b/lib/mpl_toolkits/tests/test_axisartist_grid_helper_curvelinear.py

@@ -19,7 +19,7 @@ from mpl_toolkits.axisartist.grid_helper_curvelinear import \

 @image_comparison(baseline_images=['custom_transform'],

-                  extensions=['png'], style='default', tol=0.03)

+                  extensions=['png'], style='default', tol=0.035)

 def test_custom_transform():

     class MyTransform(Transform):

         input_dims = 2

@@ -91,7 +91,7 @@ def test_custom_transform():

 @image_comparison(baseline_images=['polar_box'],

-                  extensions=['png'], style='default', tol=0.03)

+                  extensions=['png'], style='default', tol=0.08)

 def test_polar_box():

     fig = plt.figure(figsize=(5, 5))

@@ -152,7 +152,7 @@ def test_polar_box():

 @image_comparison(baseline_images=['axis_direction'],

-                  extensions=['png'], style='default', tol=0.03)

+                  extensions=['png'], style='default', tol=0.05)

 def test_axis_direction():

     fig = plt.figure(figsize=(5, 5))

diff --git a/lib/mpl_toolkits/tests/test_mplot3d.py b/lib/mpl_toolkits/tests/test_mplot3d.py

index 0a506db92..44e1681fc 100644

--- a/lib/mpl_toolkits/tests/test_mplot3d.py

+++ b/lib/mpl_toolkits/tests/test_mplot3d.py

@@ -225,7 +225,7 @@ def test_text3d():

     ax.set_zlabel('Z axis')

-@image_comparison(baseline_images=['trisurf3d'], remove_text=True, tol=0.03)

+@image_comparison(baseline_images=['trisurf3d'], remove_text=True, tol=0.05)

 def test_trisurf3d():

     n_angles = 36

     n_radii = 8

@@ -704,7 +704,7 @@ class TestVoxels(object):

     @image_comparison(

         baseline_images=['voxels-xyz'],

         extensions=['png'],

-        tol=0.01

+        tol=0.02

     )

     def test_xyz(self):

         fig, ax = plt.subplots(subplot_kw={"projection": "3d"})

-- 

2.17.1