Blob Blame Raw
From 4b3c9145a4c247197a40c5314151566e437f7bbe 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             | 49 ++++++++++---------
 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          |  8 +--
 lib/matplotlib/tests/test_cycles.py           |  3 --
 lib/matplotlib/tests/test_figure.py           |  3 +-
 lib/matplotlib/tests/test_image.py            |  2 +-
 lib/matplotlib/tests/test_legend.py           |  5 +-
 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       |  2 +-
 lib/matplotlib/tests/test_transforms.py       |  2 +-
 lib/matplotlib/tests/test_units.py            |  1 -
 .../tests/test_axisartist_floating_axes.py    |  4 +-
 ...test_axisartist_grid_helper_curvelinear.py |  6 +--
 lib/mpl_toolkits/tests/test_mplot3d.py        |  4 +-
 22 files changed, 59 insertions(+), 63 deletions(-)

diff --git a/lib/matplotlib/testing/decorators.py b/lib/matplotlib/testing/decorators.py
index 85b8d5e87..f3fc47c68 100644
--- a/lib/matplotlib/testing/decorators.py
+++ b/lib/matplotlib/testing/decorators.py
@@ -338,7 +338,7 @@ 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 283db9abe..2ae11142c 100644
--- a/lib/matplotlib/tests/test_artist.py
+++ b/lib/matplotlib/tests/test_artist.py
@@ -94,7 +94,8 @@ 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 c0e0e560d..6e88c167c 100644
--- a/lib/matplotlib/tests/test_axes.py
+++ b/lib/matplotlib/tests/test_axes.py
@@ -554,7 +554,7 @@ def test_single_point():
 
 
 @image_comparison(baseline_images=['single_date'], extensions=['png'],
-        style='mpl20')
+        style='mpl20', tol=1.97)
 def test_single_date():
     time1 = [721964.0]
     data1 = [-65.54]
@@ -1028,7 +1028,7 @@ 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])
@@ -1110,7 +1110,8 @@ def test_pcolormesh():
 
 
 @image_comparison(baseline_images=['pcolormesh_datetime_axis'],
-                  extensions=['png'], remove_text=False, style='mpl20')
+                  extensions=['png'], remove_text=False, style='mpl20',
+                  tol=0.19)
 def test_pcolormesh_datetime_axis():
     fig = plt.figure()
     fig.subplots_adjust(hspace=0.4, top=0.98, bottom=.15)
@@ -1136,7 +1137,8 @@ def test_pcolormesh_datetime_axis():
 
 
 @image_comparison(baseline_images=['pcolor_datetime_axis'],
-                  extensions=['png'], remove_text=False, style='mpl20')
+                  extensions=['png'], remove_text=False, style='mpl20',
+                  tol=0.19)
 def test_pcolor_datetime_axis():
     fig = plt.figure()
     fig.subplots_adjust(hspace=0.4, top=0.98, bottom=.15)
@@ -1193,7 +1195,7 @@ 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
@@ -2540,7 +2542,7 @@ 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)
@@ -2558,7 +2560,7 @@ 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))
@@ -2569,7 +2571,7 @@ 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))
@@ -2580,7 +2582,7 @@ 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))
@@ -2591,7 +2593,7 @@ 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))
@@ -2602,7 +2604,7 @@ 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))
@@ -2613,7 +2615,7 @@ 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))
@@ -2624,7 +2626,7 @@ 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))
@@ -2635,7 +2637,7 @@ 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))
@@ -2646,7 +2648,7 @@ 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))
@@ -2657,7 +2659,7 @@ 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))
@@ -2668,7 +2670,7 @@ 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))
@@ -2679,7 +2681,7 @@ 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))
@@ -2690,7 +2692,7 @@ 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))
@@ -3369,8 +3371,7 @@ def test_vertex_markers():
 
 
 @image_comparison(baseline_images=['vline_hline_zorder',
-                                   'errorbar_zorder'],
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0))
+                                   'errorbar_zorder'])
 def test_eb_line_zorder():
     x = list(range(10))
 
@@ -4050,7 +4051,7 @@ 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
@@ -4943,7 +4944,7 @@ 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 = {
@@ -5462,7 +5463,7 @@ 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
     UTC = datetime.timezone.utc
diff --git a/lib/matplotlib/tests/test_collections.py b/lib/matplotlib/tests/test_collections.py
index 6812ee1ad..5e5f19aac 100644
--- a/lib/matplotlib/tests/test_collections.py
+++ b/lib/matplotlib/tests/test_collections.py
@@ -466,7 +466,7 @@ 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 1c358c09a..21019be34 100644
--- a/lib/matplotlib/tests/test_colorbar.py
+++ b/lib/matplotlib/tests/test_colorbar.py
@@ -94,7 +94,7 @@ 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.
@@ -104,7 +104,7 @@ 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.
@@ -118,7 +118,7 @@ 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]
@@ -172,7 +172,7 @@ 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)
@@ -231,7 +231,8 @@ 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 de8161ea7..a1f307abe 100644
--- a/lib/matplotlib/tests/test_constrainedlayout.py
+++ b/lib/matplotlib/tests/test_constrainedlayout.py
@@ -246,7 +246,7 @@ 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 c1f27b9ef..149afadb9 100644
--- a/lib/matplotlib/tests/test_contour.py
+++ b/lib/matplotlib/tests/test_contour.py
@@ -227,7 +227,8 @@ def test_given_colors_levels_and_extends():
 
 
 @image_comparison(baseline_images=['contour_datetime_axis'],
-                  extensions=['png'], remove_text=False, style='mpl20')
+                  extensions=['png'], remove_text=False, style='mpl20',
+                  tol=0.18)
 def test_contour_datetime_axis():
     fig = plt.figure()
     fig.subplots_adjust(hspace=0.4, top=0.98, bottom=.15)
@@ -253,7 +254,8 @@ def test_contour_datetime_axis():
 
 
 @image_comparison(baseline_images=['contour_test_label_transforms'],
-                  extensions=['png'], remove_text=True, style='mpl20')
+                  extensions=['png'], remove_text=True, style='mpl20',
+                  tol=1.38)
 def test_labels():
     # Adapted from pylab_examples example code: contour_demo.py
     # see issues #2475, #2843, and #2818 for explanation
@@ -284,7 +286,7 @@ 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_cycles.py b/lib/matplotlib/tests/test_cycles.py
index 8184d3eee..5a067f8e0 100644
--- a/lib/matplotlib/tests/test_cycles.py
+++ b/lib/matplotlib/tests/test_cycles.py
@@ -10,7 +10,6 @@ from cycler import cycler
 
 
 @image_comparison(baseline_images=['color_cycle_basic'], remove_text=True,
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0),
                   extensions=['png'])
 def test_colorcycle_basic():
     fig, ax = plt.subplots()
@@ -28,7 +27,6 @@ def test_colorcycle_basic():
 
 
 @image_comparison(baseline_images=['marker_cycle', 'marker_cycle'],
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0),
                   remove_text=True, extensions=['png'])
 def test_marker_cycle():
     fig, ax = plt.subplots()
@@ -62,7 +60,6 @@ def test_marker_cycle():
 
 
 @image_comparison(baseline_images=['lineprop_cycle_basic'], remove_text=True,
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0),
                   extensions=['png'])
 def test_linestylecycle_basic():
     fig, ax = plt.subplots()
diff --git a/lib/matplotlib/tests/test_figure.py b/lib/matplotlib/tests/test_figure.py
index 4c688eb05..826b44869 100644
--- a/lib/matplotlib/tests/test_figure.py
+++ b/lib/matplotlib/tests/test_figure.py
@@ -13,8 +13,7 @@ import numpy as np
 import pytest
 
 
-@image_comparison(baseline_images=['figure_align_labels'],
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0))
+@image_comparison(baseline_images=['figure_align_labels'])
 def test_align_labels():
     # Check the figure.align_labels() command
     fig = plt.figure(tight_layout=True)
diff --git a/lib/matplotlib/tests/test_image.py b/lib/matplotlib/tests/test_image.py
index c0ffc061a..ace55c2f5 100644
--- a/lib/matplotlib/tests/test_image.py
+++ b/lib/matplotlib/tests/test_image.py
@@ -766,7 +766,7 @@ def test_imshow_endianess():
 
 
 @image_comparison(baseline_images=['imshow_masked_interpolation'],
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0),
+                  tol=0.25,
                   remove_text=True, style='mpl20')
 def test_imshow_masked_interpolation():
 
diff --git a/lib/matplotlib/tests/test_legend.py b/lib/matplotlib/tests/test_legend.py
index d508d6f41..69286069d 100644
--- a/lib/matplotlib/tests/test_legend.py
+++ b/lib/matplotlib/tests/test_legend.py
@@ -108,7 +108,6 @@ def test_multiple_keys():
 
 
 @image_comparison(baseline_images=['rgba_alpha'],
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0),
                   extensions=['png'], remove_text=True)
 def test_alpha_rgba():
     import matplotlib.pyplot as plt
@@ -120,7 +119,6 @@ def test_alpha_rgba():
 
 
 @image_comparison(baseline_images=['rcparam_alpha'],
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0),
                   extensions=['png'], remove_text=True)
 def test_alpha_rcparam():
     import matplotlib.pyplot as plt
@@ -148,8 +146,7 @@ def test_fancy():
                ncol=2, shadow=True, title="My legend", numpoints=1)
 
 
-@image_comparison(baseline_images=['framealpha'], remove_text=True,
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0))
+@image_comparison(baseline_images=['framealpha'], remove_text=True)
 def test_framealpha():
     x = np.linspace(1, 100, 100)
     y = x
diff --git a/lib/matplotlib/tests/test_mathtext.py b/lib/matplotlib/tests/test_mathtext.py
index a05c8b3c8..b6f11281f 100644
--- a/lib/matplotlib/tests/test_mathtext.py
+++ b/lib/matplotlib/tests/test_mathtext.py
@@ -169,7 +169,7 @@ 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))
@@ -183,7 +183,7 @@ 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 89a77e258..2e5c16f75 100644
--- a/lib/matplotlib/tests/test_patches.py
+++ b/lib/matplotlib/tests/test_patches.py
@@ -260,9 +260,8 @@ 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 6e80d8d98..0f158eb9e 100644
--- a/lib/matplotlib/tests/test_patheffects.py
+++ b/lib/matplotlib/tests/test_patheffects.py
@@ -119,7 +119,7 @@ def test_SimplePatchShadow_offset():
     assert pe._offset == (4, 5)
 
 
-@image_comparison(baseline_images=['collection'], tol=0.02, style='mpl20')
+@image_comparison(baseline_images=['collection'], tol=0.084, style='mpl20')
 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 9cb806c6f..c0ccf5f8c 100644
--- a/lib/matplotlib/tests/test_pickle.py
+++ b/lib/matplotlib/tests/test_pickle.py
@@ -44,7 +44,7 @@ def test_simple():
 
 @image_comparison(baseline_images=['multi_pickle'],
                   extensions=['png'], remove_text=True,
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0),
+                  tol=0.11,
                   style='mpl20')
 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 4470e02fa..70aa1e718 100644
--- a/lib/matplotlib/tests/test_quiver.py
+++ b/lib/matplotlib/tests/test_quiver.py
@@ -130,7 +130,7 @@ 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 e261513df..907841494 100644
--- a/lib/matplotlib/tests/test_streamplot.py
+++ b/lib/matplotlib/tests/test_streamplot.py
@@ -40,7 +40,7 @@ def test_startpoints():
 
 
 @image_comparison(baseline_images=['streamplot_colormap'],
-                  tol=.04, remove_text=True, style='mpl20')
+                  remove_text=True, style='mpl20')
 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 6275d5b54..a5c03f0a3 100644
--- a/lib/matplotlib/tests/test_transforms.py
+++ b/lib/matplotlib/tests/test_transforms.py
@@ -70,7 +70,7 @@ def test_external_transform_api():
 
 
 @image_comparison(baseline_images=['pre_transform_data'],
-                  tol=0.08, remove_text=True, style='mpl20')
+                  tol=0.155, remove_text=True, style='mpl20')
 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/matplotlib/tests/test_units.py b/lib/matplotlib/tests/test_units.py
index fec498af3..fe8f3f383 100644
--- a/lib/matplotlib/tests/test_units.py
+++ b/lib/matplotlib/tests/test_units.py
@@ -75,7 +75,6 @@ def quantity_converter():
 # Tests that the conversion machinery works properly for classes that
 # work as a facade over numpy arrays (like pint)
 @image_comparison(baseline_images=['plot_pint'],
-                  tol={'aarch64': 0.02}.get(platform.machine(), 0.0),
                   extensions=['png'], remove_text=False, style='mpl20')
 def test_numpy_facade(quantity_converter):
     # Register the class
diff --git a/lib/mpl_toolkits/tests/test_axisartist_floating_axes.py b/lib/mpl_toolkits/tests/test_axisartist_floating_axes.py
index 929c0368a..e6e5ca1ff 100644
--- a/lib/mpl_toolkits/tests/test_axisartist_floating_axes.py
+++ b/lib/mpl_toolkits/tests/test_axisartist_floating_axes.py
@@ -21,7 +21,7 @@ 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()
@@ -77,7 +77,7 @@ def test_curvelinear3():
 
 
 @image_comparison(baseline_images=['curvelinear4'],
-                  extensions=['png'], style='default', tol=0.015)
+                  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 32e1c884d..2b38866c5 100644
--- a/lib/mpl_toolkits/tests/test_axisartist_grid_helper_curvelinear.py
+++ b/lib/mpl_toolkits/tests/test_axisartist_grid_helper_curvelinear.py
@@ -17,7 +17,7 @@ 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
@@ -85,7 +85,7 @@ def test_custom_transform():
 
 
 @image_comparison(baseline_images=['polar_box'],
-                  tol={'aarch64': 0.04}.get(platform.machine(), 0.03),
+                  tol=0.08,
                   extensions=['png'], style='default')
 def test_polar_box():
     fig = plt.figure(figsize=(5, 5))
@@ -147,7 +147,7 @@ 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 bc9c43ec7..48727de52 100644
--- a/lib/mpl_toolkits/tests/test_mplot3d.py
+++ b/lib/mpl_toolkits/tests/test_mplot3d.py
@@ -254,7 +254,7 @@ 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
@@ -733,7 +733,7 @@ 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"})
-- 
2.20.1