From 79439dbea1754a2b661ade7b786a1283812932d4 Mon Sep 17 00:00:00 2001
From: Anton Firszov <antonfir@gmail.com>
Date: Mon, 13 May 2019 02:13:16 +0200
Subject: [PATCH] DrawImageOfDifferentPixelType test cases

---
 .../Drawing/DrawImageTests.cs                 | 22 +++++++++++++++++--
 tests/Images/External                         |  2 +-
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/tests/ImageSharp.Tests/Drawing/DrawImageTests.cs b/tests/ImageSharp.Tests/Drawing/DrawImageTests.cs
index e48a0b0ae..cb44651d6 100644
--- a/tests/ImageSharp.Tests/Drawing/DrawImageTests.cs
+++ b/tests/ImageSharp.Tests/Drawing/DrawImageTests.cs
@@ -96,8 +96,26 @@ namespace SixLabors.ImageSharp.Tests.Drawing
                     testInfo);
             }
         }
-        
-        
+
+        [Theory]
+        [WithTestPatternImages(200, 200, PixelTypes.Rgba32 | PixelTypes.Bgra32)]
+        public void DrawImageOfDifferentPixelType<TPixel>(TestImageProvider<TPixel> provider)
+            where TPixel : struct, IPixel<TPixel>
+        {
+            byte[] brushData = TestFile.Create(TestImages.Png.Ducky).Bytes;
+
+            using (Image<TPixel> image = provider.GetImage())
+            using (Image brushImage = provider.PixelType == PixelTypes.Rgba32
+                                          ? (Image)Image.Load<Bgra32>(brushData)
+                                          : Image.Load<Rgba32>(brushData))
+            {
+                image.Mutate(c => c.DrawImage(brushImage, 0.5f));
+
+                image.DebugSave(provider, appendSourceFileOrDescription: false);
+                image.CompareToReferenceOutput(provider, appendSourceFileOrDescription: false);
+            }
+        }
+
         [Theory]
         [WithSolidFilledImages(100, 100, "White", PixelTypes.Rgba32, 0, 0)]
         [WithSolidFilledImages(100, 100, "White", PixelTypes.Rgba32, 25, 25)]
diff --git a/tests/Images/External b/tests/Images/External
index 9d1d9dd53..82f082ed3 160000
--- a/tests/Images/External
+++ b/tests/Images/External
@@ -1 +1 @@
-Subproject commit 9d1d9dd53755007ee812907f64304d1925c6a91a
+Subproject commit 82f082ed3b47cc21b38dda9c5f8dda06dca5233a