Minor cleanup.

Author: JimBobSquarePants

src/ImageSharp.Web/CaseHandlingUriBuilder.cs

@@ -133,7 +133,10 @@ public static string BuildAbsolute(
         /// <param name="uri">The Uri to encode.</param>
         /// <returns>The encoded string version of <paramref name="uri"/>.</returns>
         public static string Encode(CaseHandling handling, string uri)
-            => Encode(handling, new Uri(uri, UriKind.RelativeOrAbsolute));
+        {
+            Guard.NotNull(uri, nameof(uri));
+            return Encode(handling, new Uri(uri, UriKind.RelativeOrAbsolute));
+        }
 
         /// <summary>
         /// Generates a string from the given absolute or relative Uri that is appropriately encoded for use in

tests/ImageSharp.Web.Tests/TestUtilities/AuthenticatedServerTestBase.cs

@@ -37,7 +37,7 @@ public async Task CanRejectUnauthorizedRequestAsync()
             Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
 
             // Now send an invalid token
-            response = await this.HttpClient.GetAsync(url + this.Fixture.Commands[0] + "&" + HMACUtilities.TokenCommand + "=INVALID");
+            response = await this.HttpClient.GetAsync(url + this.Fixture.Commands[0] + "&" + ImageSharpRequestAuthorizationUtilities.TokenCommand + "=INVALID");
             Assert.NotNull(response);
             Assert.False(response.IsSuccessStatusCode);
             Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);