diff --git a/src/ImageProcessor.UnitTests/Extensions/StringExtensionsUnitTests.cs b/src/ImageProcessor.UnitTests/Extensions/StringExtensionsUnitTests.cs
deleted file mode 100644
index c89c09dcd4..0000000000
--- a/src/ImageProcessor.UnitTests/Extensions/StringExtensionsUnitTests.cs
+++ /dev/null
@@ -1,192 +0,0 @@
-// --------------------------------------------------------------------------------------------------------------------
-// <copyright file="StringExtensionsUnitTests.cs" company="James South">
-//   Copyright (c) James South.
-//   Licensed under the Apache License, Version 2.0.
-// </copyright>
-// <summary>
-//   Provides a test harness for the string extensions
-// </summary>
-// --------------------------------------------------------------------------------------------------------------------
-
-namespace ImageProcessor.UnitTests.Extensions
-{
-    using System;
-    using System.Collections.Generic;
-    using ImageProcessor.Common.Extensions;
-    using NUnit.Framework;
-
-    /// <summary>
-    /// Test harness for the string extensions
-    /// </summary>
-    [TestFixture]
-    public class StringExtensionsUnitTests
-    {
-        /// <summary>
-        /// Tests the MD5 fingerprint
-        /// </summary>
-        /// <param name="input">The input value</param>
-        /// <param name="expected">The expected output of the hash</param>
-        [Test]
-        [TestCase("test input", "2e7f7a62eabf0993239ca17c78c464d9")]
-        [TestCase("lorem ipsum dolor", "96ee002fee25e8b675a477c9750fa360")]
-        [TestCase("LoReM IpSuM DoLoR", "41e201da794c7fbdb8ce5526a71c8c83")]
-        [TestCase("1234567890", "e15e31c3d8898c92ab172a4311be9e84")]
-        public void TestToMd5Fingerprint(string input, string expected)
-        {
-            string result = input.ToMD5Fingerprint();
-            bool comparison = result.Equals(expected, StringComparison.InvariantCultureIgnoreCase);
-            Assert.True(comparison);
-        }
-
-        /// <summary>
-        /// Tests the SHA-1 fingerprint
-        /// </summary>
-        /// <param name="input">The input value</param>
-        /// <param name="expected">The expected output of the hash</param>
-        [Test]
-        [TestCase("test input", "49883b34e5a0f48224dd6230f471e9dc1bdbeaf5")]
-        [TestCase("lorem ipsum dolor", "75899ad8827a32493928903aecd6e931bf36f967")]
-        [TestCase("LoReM IpSuM DoLoR", "2f44519afae72fc0837b72c6b53cb11338a1f916")]
-        [TestCase("1234567890", "01b307acba4f54f55aafc33bb06bbbf6ca803e9a")]
-        public void TestToSHA1Fingerprint(string input, string expected)
-        {
-            string result = input.ToSHA1Fingerprint();
-            bool comparison = result.Equals(expected, StringComparison.InvariantCultureIgnoreCase);
-            Assert.True(comparison);
-        }
-
-        /// <summary>
-        /// Tests the SHA-256 fingerprint
-        /// </summary>
-        /// <param name="input">The input value</param>
-        /// <param name="expected">The expected output of the hash</param>
-        [Test]
-        [TestCase("test input", "9dfe6f15d1ab73af898739394fd22fd72a03db01834582f24bb2e1c66c7aaeae")]
-        [TestCase("lorem ipsum dolor", "ed03353266c993ea9afb9900a3ca688ddec1656941b1ca15ee1650a022616dfa")]
-        [TestCase("LoReM IpSuM DoLoR", "55f6cb90ba5cd8eeb6f5f16f083ebcd48ea06c34cc5aed8e33246fc3153d3898")]
-        [TestCase("1234567890", "c775e7b757ede630cd0aa1113bd102661ab38829ca52a6422ab782862f268646")]
-        public void TestToSHA256Fingerprint(string input, string expected)
-        {
-            string result = input.ToSHA256Fingerprint();
-            bool comparison = result.Equals(expected, StringComparison.InvariantCultureIgnoreCase);
-            Assert.True(comparison);
-        }
-
-        /// <summary>
-        /// Tests the SHA-512 fingerprint
-        /// </summary>
-        /// <param name="input">The input value</param>
-        /// <param name="expected">The expected output of the hash</param>
-        [Test]
-        [TestCase("test input", "40aa1b203c9d8ee150b21c3c7cda8261492e5420c5f2b9f7380700e094c303b48e62f319c1da0e32eb40d113c5f1749cc61aeb499167890ab82f2cc9bb706971")]
-        [TestCase("lorem ipsum dolor", "cd813e13d1d3919cdccc31c19d8f8b70bd25e9819f8770a011c8c7a6228536e6c9427b338cd732f2da3c0444dfebef838b745cdaf3fd5dcba8db24fc83a3f6ef")]
-        [TestCase("LoReM IpSuM DoLoR", "3e4704d31f838456c0a5f0892afd392fbc79649a029d017b8104ebd00e2816d94ab4629f731765bf655088b130c51f6f47ca2f8b047749dbd992cf45e89ff431")]
-        [TestCase("1234567890", "12b03226a6d8be9c6e8cd5e55dc6c7920caaa39df14aab92d5e3ea9340d1c8a4d3d0b8e4314f1f6ef131ba4bf1ceb9186ab87c801af0d5c95b1befb8cedae2b9")]
-        public void TestToSHA512Fingerprint(string input, string expected)
-        {
-            string result = input.ToSHA512Fingerprint();
-            bool comparison = result.Equals(expected, StringComparison.InvariantCultureIgnoreCase);
-            Assert.True(comparison);
-        }
-
-        /// <summary>
-        /// Tests the passing to an integer array
-        /// </summary>
-        [Test]
-        public void TestToIntegerArray()
-        {
-            Dictionary<string, int[]> data = new Dictionary<string, int[]>
-            {
-                {
-                    "123-456,78-90",
-                    new[] { 123, 456, 78, 90 }
-                },
-                {
-                    "87390174,741897498,74816,748297,57355",
-                    new[]
-                        {
-                            87390174, 741897498, 74816,
-                            748297, 57355
-                        }
-                },
-                { "1-2-3", new[] { 1, 2, 3 } }
-            };
-
-            foreach (KeyValuePair<string, int[]> item in data)
-            {
-                int[] result = item.Key.ToPositiveIntegerArray();
-                Assert.AreEqual(item.Value, result);
-            }
-        }
-
-        /// <summary>
-        /// Tests the passing to an float array
-        /// </summary>
-        [Test]
-        public void TestToFloatArray()
-        {
-            Dictionary<string, float[]> data = new Dictionary<string, float[]>
-            {
-                {
-                    "12.3-4.56,78-9.0",
-                    new[] { 12.3F, 4.56F, 78, 9 }
-                },
-                {
-                    "87390.174,7.41897498,748.16,748297,5.7355",
-                    new[]
-                        {
-                            87390.174F, 7.41897498F,
-                            748.16F, 748297, 5.7355F
-                        }
-                },
-                { "1-2-3", new float[] { 1, 2, 3 } }
-            };
-
-            foreach (KeyValuePair<string, float[]> item in data)
-            {
-                float[] result = item.Key.ToPositiveFloatArray();
-                Assert.AreEqual(item.Value, result);
-            }
-        }
-
-        /// <summary>
-        /// Tests if the value is a valid URI path name. I.E the path part of a uri.
-        /// </summary>
-        /// <param name="input">The value to test</param>
-        /// <param name="expected">Whether the value is correct</param>
-        /// <remarks>
-        /// The full RFC3986 does not seem to pass the test with the square brackets
-        /// </remarks>
-        [Test]
-        [TestCase("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", true)]
-        [TestCase("-", true)]
-        [TestCase(".", true)]
-        [TestCase("_", true)]
-        [TestCase("~", true)]
-        [TestCase(":", false)]
-        [TestCase("/", true)]
-        [TestCase("?", true)]
-        [TestCase("#", false)]
-        [TestCase("[", false)]
-        [TestCase("]", false)]
-        [TestCase("@", true)]
-        [TestCase("!", true)]
-        [TestCase("$", true)]
-        [TestCase("&", true)]
-        [TestCase("'", true)]
-        [TestCase("(", true)]
-        [TestCase(")", true)]
-        [TestCase("*", true)]
-        [TestCase("+", true)]
-        [TestCase(",", true)]
-        [TestCase(";", true)]
-        [TestCase("=", true)]
-        [TestCase("lorem ipsum", false)]
-        [TestCase("é", false)]
-        public void TestIsValidUriPathName(string input, bool expected)
-        {
-            bool result = input.IsValidVirtualPathName();
-            Assert.AreEqual(expected, result);
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/ImageProcessor.UnitTests/ImageProcessor.UnitTests.csproj b/src/ImageProcessor.UnitTests/ImageProcessor.UnitTests.csproj
index f3b6404f27..a6c5957fb0 100644
--- a/src/ImageProcessor.UnitTests/ImageProcessor.UnitTests.csproj
+++ b/src/ImageProcessor.UnitTests/ImageProcessor.UnitTests.csproj
@@ -48,7 +48,6 @@
     </Compile>
     <Compile Include="Extensions\DoubleExtensionsUnitTests.cs" />
     <Compile Include="Extensions\IntegerExtensionsUnitTests.cs" />
-    <Compile Include="Extensions\StringExtensionsUnitTests.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>
@@ -130,8 +129,6 @@
     <Error Condition="!Exists('$(SolutionDir)\.nuget\NuGet.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\.nuget\NuGet.targets'))" />
   </Target>
   <ItemGroup />
-  <ItemGroup>
-    <Folder Include="Extensions\" />
-  </ItemGroup>
+  <ItemGroup />
   <ItemGroup />
 </Project>
\ No newline at end of file