matplotlib
diff --git a/‎lib/matplotlib/tests/baseline_images/test_axes/pie_frame_grid.png‎
61.8 KB b/‎lib/matplotlib/tests/baseline_images/test_axes/pie_frame_grid.png‎
61.8 KB
diff --git a/‎lib/matplotlib/tests/test_axes.py‎
Lines changed: 27 additions & 0 deletions b/‎lib/matplotlib/tests/test_axes.py‎
Lines changed: 27 additions & 0 deletions
@@ -3343,6 +3343,33 @@ def test_pie_ccw_true():
     # Set aspect ratio to be equal so that pie is drawn as a circle.
     plt.axis('equal')
 
+
+@image_comparison(baseline_images=['pie_frame_grid'], extensions=['png'])
+def test_pie_frame_grid():
+    # The slices will be ordered and plotted counter-clockwise.
+    labels = 'Frogs', 'Hogs', 'Dogs', 'Logs'
+    sizes = [15, 30, 45, 10]
+    colors = ['yellowgreen', 'gold', 'lightskyblue', 'lightcoral']
+    explode = (0, 0.1, 0, 0) # only "explode" the 2nd slice (i.e. 'Hogs')
+
+    plt.pie(sizes, explode=explode, labels=labels, colors=colors,
+            autopct='%1.1f%%', shadow=True, startangle=90,
+            wedgeprops={'linewidth': 0},
+            frame=True, center = (2,2) )
+
+    plt.pie(sizes[::-1], explode=explode, labels=labels, colors=colors,
+            autopct='%1.1f%%', shadow=True, startangle=90,
+            wedgeprops={'linewidth': 0},
+            frame=True, center = (5,2) )
+
+    plt.pie(sizes, explode=explode[::-1], labels=labels, colors=colors,
+            autopct='%1.1f%%', shadow=True, startangle=90,
+            wedgeprops={'linewidth': 0},
+            frame=True, center = (3,5) )
+    # Set aspect ratio to be equal so that pie is drawn as a circle.
+    plt.axis('equal')
+
+
 @cleanup
 def test_margins():
     # test all ways margins can be called