diff --git a/src/ImageSharp/Common/Helpers/ParallelFor.cs b/src/ImageSharp/Common/Helpers/ParallelFor.cs
index 579ae1257e..191875a950 100644
--- a/src/ImageSharp/Common/Helpers/ParallelFor.cs
+++ b/src/ImageSharp/Common/Helpers/ParallelFor.cs
@@ -2,7 +2,6 @@
 using System.Buffers;
 using System.Threading.Tasks;
 
-using SixLabors.ImageSharp.Memory;
 using SixLabors.Memory;
 
 namespace SixLabors.ImageSharp
diff --git a/tests/ImageSharp.Tests/Processing/Processors/Transforms/CropTest.cs b/tests/ImageSharp.Tests/Processing/Processors/Transforms/CropTest.cs
index c154c8ff3c..2f78915120 100644
--- a/tests/ImageSharp.Tests/Processing/Processors/Transforms/CropTest.cs
+++ b/tests/ImageSharp.Tests/Processing/Processors/Transforms/CropTest.cs
@@ -1,24 +1,34 @@
 // Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
+using System;
+
 using SixLabors.ImageSharp.PixelFormats;
 using SixLabors.ImageSharp.Processing;
+using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
+using SixLabors.Primitives;
+
 using Xunit;
 
 namespace SixLabors.ImageSharp.Tests.Processing.Processors.Transforms
 {
+    [GroupOutput("Transforms")]
     public class CropTest : FileTestBase
     {
         [Theory]
-        [WithFileCollection(nameof(DefaultFiles), DefaultPixelType)]
-        public void ImageShouldCrop<TPixel>(TestImageProvider<TPixel> provider)
+        [WithTestPatternImages(70, 30, PixelTypes.Rgba32, 0, 0, 70, 30)]
+        [WithTestPatternImages(50, 50, PixelTypes.Rgba32, -1, -1, 100, 200)]
+        [WithTestPatternImages(30, 70, PixelTypes.Rgba32, 7, 13, 20, 50)]
+        public void Crop<TPixel>(TestImageProvider<TPixel> provider, int x, int y, int w, int h)
             where TPixel : struct, IPixel<TPixel>
         {
-            using (Image<TPixel> image = provider.GetImage())
-            {
-                image.Mutate(x => x.Crop(image.Width / 2, image.Height / 2));
-                image.DebugSave(provider);
-            }
+            var rect = new Rectangle(x, y, w, h);
+            FormattableString info = $"X{x}Y{y}.W{w}H{h}";
+            provider.RunValidatingProcessorTest(
+                ctx => ctx.Crop(rect),
+                info,
+                appendPixelTypeToFileName: false,
+                comparer: ImageComparer.Exact);
         }
     }
 }
\ No newline at end of file
diff --git a/tests/Images/External b/tests/Images/External
index 6abc3bc0ac..2841a79efd 160000
--- a/tests/Images/External
+++ b/tests/Images/External
@@ -1 +1 @@
-Subproject commit 6abc3bc0ac253a24c9e88e68d7b7d853350a85da
+Subproject commit 2841a79efd68d47c6552ce857869eb0d80f8de75