From 3db194476245eeafa2c78a7f680cff15082d776a Mon Sep 17 00:00:00 2001
From: Hugo <hugovk@users.noreply.github.com>
Date: Mon, 15 May 2017 17:09:29 +0300
Subject: [PATCH] Test drawing polygons with sloped and flat lines

---
 Tests/images/imagedraw_polygon_kite.png | Bin 0 -> 647 bytes
 Tests/test_imagedraw.py                 |  17 +++++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 Tests/images/imagedraw_polygon_kite.png

diff --git a/Tests/images/imagedraw_polygon_kite.png b/Tests/images/imagedraw_polygon_kite.png
new file mode 100644
index 0000000000000000000000000000000000000000..e48d6660fe2202e2deec1d5843beb4dfc39d4aec
GIT binary patch
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diff --git a/Tests/test_imagedraw.py b/Tests/test_imagedraw.py
index 441a34a88..11e990bcb 100644
--- a/Tests/test_imagedraw.py
+++ b/Tests/test_imagedraw.py
@@ -30,6 +30,8 @@ BBOX2 = [X0, Y0, X1, Y1]
 POINTS1 = [(10, 10), (20, 40), (30, 30)]
 POINTS2 = [10, 10, 20, 40, 30, 30]
 
+KITE_POINTS = [(10, 50), (70, 10), (90, 50), (70, 90), (10, 50)]
+
 
 class TestImageDraw(PillowTestCase):
 
@@ -267,6 +269,21 @@ class TestImageDraw(PillowTestCase):
     def test_polygon2(self):
         self.helper_polygon(POINTS2)
 
+    def test_polygon_kite(self):
+        # Test drawing lines of different gradients (dx>dy, dy>dx) and
+        # vertical (dx==0) and horizontal (dy==0) lines
+        # Arrange
+        im = Image.new("RGB", (W, H))
+        draw = ImageDraw.Draw(im)
+
+        # Act
+        draw.polygon(KITE_POINTS, fill="blue", outline="yellow")
+        del draw
+
+        # Assert
+        self.assert_image_equal(
+            im, Image.open("Tests/images/imagedraw_polygon_kite.png"))
+
     def helper_rectangle(self, bbox):
         # Arrange
         im = Image.new("RGB", (W, H))