Add a test for Patch accepting 'none' linestyle.

Author: QuLogic

lib/matplotlib/tests/test_patches.py

@@ -238,6 +238,32 @@ def test_patch_linestyle_accents():
     fig.canvas.draw()
 
 
+@check_figures_equal(extensions=['png'])
+def test_patch_linestyle_none(fig_test, fig_ref):
+    circle = mpath.Path.unit_circle()
+
+    ax_test = fig_test.add_subplot()
+    ax_ref = fig_ref.add_subplot()
+    for i, ls in enumerate(['none', 'None', ' ', '']):
+        path = mpath.Path(circle.vertices + i, circle.codes)
+        patch = mpatches.PathPatch(path,
+                                   linewidth=3, linestyle=ls,
+                                   facecolor=(1, 0, 0),
+                                   edgecolor=(0, 0, 1))
+        ax_test.add_patch(patch)
+
+        patch = mpatches.PathPatch(path,
+                                   linewidth=3, linestyle='-',
+                                   facecolor=(1, 0, 0),
+                                   edgecolor='none')
+        ax_ref.add_patch(patch)
+
+    ax_test.set_xlim([-1, i + 1])
+    ax_test.set_ylim([-1, i + 1])
+    ax_ref.set_xlim([-1, i + 1])
+    ax_ref.set_ylim([-1, i + 1])
+
+
 def test_wedge_movement():
     param_dict = {'center': ((0, 0), (1, 1), 'set_center'),
                   'r': (5, 8, 'set_radius'),