slightly increase tolerance for not-really-failing tests

afvincent · anntzer · commit ae201fc63e35 · 2021-07-28T16:11:52.000+02:00
diff --git a/lib/matplotlib/tests/test_axes.py b/lib/matplotlib/tests/test_axes.py
@@ -1358,8 +1358,12 @@ def test_markevery():
     ax.legend()
 
 
-@image_comparison(['markevery_line'], remove_text=True)
+@image_comparison(['markevery_line'], remove_text=True, tol=0.005)
 def test_markevery_line():
+    # TODO: a slight change in rendering between Inkscape versions may explain
+    # why one had to introduce a small non-zero tolerance for the SVG test
+    # to pass. One may try to remove this hack once Travis' Inkscape version
+    # is modern enough. FWIW, no failure with 0.92.3 on my computer (#11358).
     x = np.linspace(0, 10, 100)
     y = np.sin(x) * np.sqrt(x/10 + 0.5)
 
