added self test to solve issue
@@ -111,6 +111,8 @@ class Test_Icon(unittest.TestCase):
ic4.x_tick_label(0.75, 0.15, offset=7)
ic4.y_tick_label(0.75, 0.25, offset=17)
+ self.assertEqual(ic2.image, test_im)
+
if __name__ == '__main__':
unittest.main()
