diff --git a/tests/ImageSharp.Tests/Formats/WebP/LossyUtilsTests.cs b/tests/ImageSharp.Tests/Formats/WebP/LossyUtilsTests.cs
index 907b18300c..5c58ea67b1 100644
--- a/tests/ImageSharp.Tests/Formats/WebP/LossyUtilsTests.cs
+++ b/tests/ImageSharp.Tests/Formats/WebP/LossyUtilsTests.cs
@@ -11,8 +11,74 @@ namespace SixLabors.ImageSharp.Tests.Formats.Webp
     [Trait("Format", "Webp")]
     public class LossyUtilsTests
     {
+        private static void RunTransformTwoTest()
+        {
+            // arrange
+            short[] src = { 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 19, 23, 0, 0, -23, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+            byte[] dst =
+            {
+                103, 103, 103, 103, 103, 103, 103, 103, 0, 0, 0, 0, 169, 169, 169, 169, 171, 171, 171, 171,
+                171, 171, 171, 171, 0, 0, 0, 0, 103, 103, 103, 103, 103, 103, 103, 103, 103, 103, 103, 103,
+                0, 0, 0, 0, 169, 169, 169, 169, 171, 171, 171, 171, 171, 171, 171, 171, 0, 0, 0, 0,
+                103, 103, 103, 103, 103, 103, 103, 103, 103, 103, 103, 103, 0, 0, 0, 0, 169, 169, 169, 169,
+                171, 171, 171, 171, 171, 171, 171, 171, 0, 0, 0, 0, 103, 103, 103, 103, 103, 103, 103, 103,
+                103, 103, 103, 103, 0, 0, 0, 0, 169, 169, 169, 169, 171, 171, 171, 171, 171, 171, 171, 171,
+                0, 0, 0, 0, 0, 0, 0, 0
+            };
+            byte[] expected =
+            {
+                105, 105, 105, 105, 105, 103, 100, 98, 0, 0, 0, 0, 169, 169, 169, 169, 171, 171, 171, 171, 171, 171,
+                171, 171, 0, 0, 0, 0, 103, 103, 103, 103, 105, 105, 105, 105, 108, 105, 102, 100, 0, 0, 0, 0, 169,
+                169, 169, 169, 171, 171, 171, 171, 171, 171, 171, 171, 0, 0, 0, 0, 103, 103, 103, 103, 105, 105,
+                105, 105, 111, 109, 106, 103, 0, 0, 0, 0, 169, 169, 169, 169, 171, 171, 171, 171, 171, 171, 171,
+                171, 0, 0, 0, 0, 103, 103, 103, 103, 105, 105, 105, 105, 113, 111, 108, 106, 0, 0, 0, 0, 169, 169,
+                169, 169, 171, 171, 171, 171, 171, 171, 171, 171, 0, 0, 0, 0, 0, 0, 0, 0
+            };
+            int[] scratch = new int[16];
+
+            // act
+            LossyUtils.TransformTwo(src, dst, scratch);
+
+            // assert
+            Assert.True(expected.SequenceEqual(dst));
+        }
+
+        private static void RunTransformOneTest()
+        {
+            // arrange
+            short[] src = { -176, 0, 0, 0, 29, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+            byte[] dst =
+            {
+                128, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129, 128, 128, 128, 128,
+                128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129, 128, 128, 128, 128, 128, 128, 128, 128,
+                0, 0, 0, 0, 0, 0, 0, 129, 128, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 0,
+                0, 0, 0, 129, 128, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129,
+                128, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129, 128, 128, 128, 128,
+                128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129, 128, 128, 128, 128, 128, 128, 128, 128,
+                0, 0, 0, 0, 0, 0, 0, 129
+            };
+            byte[] expected =
+            {
+                111, 111, 111, 111, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129, 128, 128, 128, 128,
+                128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129, 108, 108, 108, 108, 128, 128, 128, 128,
+                0, 0, 0, 0, 0, 0, 0, 129, 128, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 0,
+                0, 0, 0, 129, 104, 104, 104, 104, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129,
+                128, 128, 128, 128, 128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129, 101, 101, 101, 101,
+                128, 128, 128, 128, 0, 0, 0, 0, 0, 0, 0, 129, 128, 128, 128, 128, 128, 128, 128, 128,
+                0, 0, 0, 0, 0, 0, 0, 129
+            };
+            int[] scratch = new int[16];
+
+            // act
+            LossyUtils.TransformOne(src, dst, scratch);
+
+            // assert
+            Assert.True(expected.SequenceEqual(dst));
+        }
+
         private static void RunVp8Sse4X4Test()
         {
+            // arrange
             byte[] a =
             {
                 27, 27, 28, 29, 29, 28, 27, 27, 27, 28, 28, 29, 29, 28, 28, 27, 129, 129, 129, 129, 129, 129, 129,
@@ -35,8 +101,10 @@ namespace SixLabors.ImageSharp.Tests.Formats.Webp
 
             int expected = 27;
 
+            // act
             int actual = LossyUtils.Vp8_Sse4X4(a, b);
 
+            // assert
             Assert.Equal(expected, actual);
         }
 
@@ -65,6 +133,7 @@ namespace SixLabors.ImageSharp.Tests.Formats.Webp
 
         private static void RunHadamardTransformTest()
         {
+            // arrange
             byte[] a =
             {
                 27, 27, 28, 29, 29, 28, 27, 27, 27, 28, 28, 29, 29, 28, 28, 27, 129, 129, 129, 129, 129, 129, 129,
@@ -86,10 +155,19 @@ namespace SixLabors.ImageSharp.Tests.Formats.Webp
             ushort[] w = { 38, 32, 20, 9, 32, 28, 17, 7, 20, 17, 10, 4, 9, 7, 4, 2 };
             int expected = 2;
 
+            // act
             int actual = LossyUtils.Vp8Disto4X4(a, b, w, new int[16]);
+
+            // assert
             Assert.Equal(expected, actual);
         }
 
+        [Fact]
+        public void RunTransformTwo_Works() => RunTransformTwoTest();
+
+        [Fact]
+        public void RunTransformOne_Works() => RunTransformOneTest();
+
         [Fact]
         public void Vp8Sse4X4_Works() => RunVp8Sse4X4Test();
 
@@ -100,6 +178,18 @@ namespace SixLabors.ImageSharp.Tests.Formats.Webp
         public void HadamardTransform_Works() => RunHadamardTransformTest();
 
 #if SUPPORTS_RUNTIME_INTRINSICS
+        [Fact]
+        public void TransformTwo_WithHardwareIntrinsics_Works() => FeatureTestRunner.RunWithHwIntrinsicsFeature(RunTransformTwoTest, HwIntrinsics.AllowAll);
+
+        [Fact]
+        public void TransformTwo_WithoutHardwareIntrinsics_Works() => FeatureTestRunner.RunWithHwIntrinsicsFeature(RunTransformTwoTest, HwIntrinsics.DisableHWIntrinsic);
+
+        [Fact]
+        public void TransformOne_WithHardwareIntrinsics_Works() => FeatureTestRunner.RunWithHwIntrinsicsFeature(RunTransformOneTest, HwIntrinsics.AllowAll);
+
+        [Fact]
+        public void TransformOne_WithoutHardwareIntrinsics_Works() => FeatureTestRunner.RunWithHwIntrinsicsFeature(RunTransformOneTest, HwIntrinsics.DisableHWIntrinsic);
+
         [Fact]
         public void Vp8Sse4X4_WithHardwareIntrinsics_Works() => FeatureTestRunner.RunWithHwIntrinsicsFeature(RunVp8Sse4X4Test, HwIntrinsics.AllowAll);