diff --git a/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/OpenIdConnectChallengeTests.cs b/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/OpenIdConnectChallengeTests.cs
index bf0d9ff0e3..78f84c04f5 100644
--- a/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/OpenIdConnectChallengeTests.cs
+++ b/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/OpenIdConnectChallengeTests.cs
@@ -21,7 +21,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
                 opt => opt.AuthenticationMethod = OpenIdConnectRedirectBehavior.RedirectGet);
 
             var server = settings.CreateTestServer();
-            var transaction = await TestTransaction.SendAsync(server, ChallengeEndpoint);
+            var transaction = await server.SendAsync(ChallengeEndpoint);
 
             var res = transaction.Response;
             Assert.Equal(HttpStatusCode.Redirect, res.StatusCode);
@@ -62,7 +62,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
                 opt => opt.AuthenticationMethod = OpenIdConnectRedirectBehavior.FormPost);
 
             var server = settings.CreateTestServer();
-            var transaction = await TestTransaction.SendAsync(server, ChallengeEndpoint);
+            var transaction = await server.SendAsync(ChallengeEndpoint);
 
             var res = transaction.Response;
             Assert.Equal(HttpStatusCode.OK, res.StatusCode);
@@ -89,7 +89,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
             properties.Items.Add(OpenIdConnectDefaults.UserstatePropertiesKey, userState);
 
             var server = TestServerBuilder.CreateServer(settings.Options, handler: null, properties: properties);
-            var transaction = await TestTransaction.SendAsync(server, TestServerBuilder.TestHost + TestServerBuilder.ChallengeWithProperties);
+            var transaction = await server.SendAsync(TestServerBuilder.TestHost + TestServerBuilder.ChallengeWithProperties);
 
             var res = transaction.Response;
             Assert.Equal(HttpStatusCode.Redirect, res.StatusCode);
@@ -120,7 +120,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
             });
 
             var server = settings.CreateTestServer();
-            var transaction = await TestTransaction.SendAsync(server, ChallengeEndpoint);
+            var transaction = await server.SendAsync(ChallengeEndpoint);
 
             var res = transaction.Response;
             Assert.Equal(HttpStatusCode.Redirect, res.StatusCode);
@@ -159,7 +159,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
             );
 
             var server = settings.CreateTestServer();
-            var transaction = await TestTransaction.SendAsync(server, ChallengeEndpoint);
+            var transaction = await server.SendAsync(ChallengeEndpoint);
 
             Assert.True(eventIsHit);
 
@@ -198,7 +198,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
             );
 
             var server = settings.CreateTestServer();
-            var transaction = await TestTransaction.SendAsync(server, ChallengeEndpoint);
+            var transaction = await server.SendAsync(ChallengeEndpoint);
 
             var res = transaction.Response;
             Assert.Equal(HttpStatusCode.Redirect, res.StatusCode);
@@ -239,7 +239,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
             );
 
             var server = settings.CreateTestServer();
-            var transaction = await TestTransaction.SendAsync(server, ChallengeEndpoint);
+            var transaction = await server.SendAsync(ChallengeEndpoint);
 
             var res = transaction.Response;
             Assert.Equal(HttpStatusCode.Redirect, res.StatusCode);
@@ -267,7 +267,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
             );
 
             var server = settings.CreateTestServer();
-            var transaction = await TestTransaction.SendAsync(server, ChallengeEndpoint);
+            var transaction = await server.SendAsync(ChallengeEndpoint);
 
             var res = transaction.Response;
             Assert.Equal(HttpStatusCode.OK, res.StatusCode);
@@ -294,7 +294,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
             );
 
             var server = settings.CreateTestServer();
-            var transaction = await TestTransaction.SendAsync(server, ChallengeEndpoint);
+            var transaction = await server.SendAsync(ChallengeEndpoint);
 
             var res = transaction.Response;
             Assert.Equal(HttpStatusCode.OK, res.StatusCode);
@@ -306,7 +306,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
         {
             var settings = new TestSettings();
             var server = settings.CreateTestServer();
-            var transaction = await TestTransaction.SendAsync(server, ChallengeEndpoint);
+            var transaction = await server.SendAsync(ChallengeEndpoint);
 
             var firstCookie = transaction.SetCookie.First();
             Assert.Contains(OpenIdConnectDefaults.CookieNoncePrefix, firstCookie);
diff --git a/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/OpenIdConnectMiddlewareTests.cs b/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/OpenIdConnectMiddlewareTests.cs
index f2ea922926..959d64acea 100644
--- a/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/OpenIdConnectMiddlewareTests.cs
+++ b/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/OpenIdConnectMiddlewareTests.cs
@@ -36,7 +36,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
 
             var server = setting.CreateTestServer();
 
-            var transaction = await TestTransaction.SendAsync(server, DefaultHost + TestServerBuilder.Signout);
+            var transaction = await server.SendAsync(DefaultHost + TestServerBuilder.Signout);
             var res = transaction.Response;
 
             Assert.Equal(HttpStatusCode.Redirect, res.StatusCode);
@@ -56,7 +56,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
                 Configuration = configuration
             });
 
-            var transaction = await TestTransaction.SendAsync(server, DefaultHost + TestServerBuilder.Signout);
+            var transaction = await server.SendAsync(DefaultHost + TestServerBuilder.Signout);
             Assert.Equal(HttpStatusCode.Redirect, transaction.Response.StatusCode);
             Assert.Equal(configuration.EndSessionEndpoint, transaction.Response.Headers.Location.AbsoluteUri);
         }
@@ -73,7 +73,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
                 PostLogoutRedirectUri = "https://example.com/logout"
             });
 
-            var transaction = await TestTransaction.SendAsync(server, DefaultHost + TestServerBuilder.Signout);
+            var transaction = await server.SendAsync(DefaultHost + TestServerBuilder.Signout);
             Assert.Equal(HttpStatusCode.Redirect, transaction.Response.StatusCode);
             Assert.Contains(UrlEncoder.Default.Encode("https://example.com/logout"), transaction.Response.Headers.Location.AbsoluteUri);
         }
@@ -90,7 +90,7 @@ namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
                 PostLogoutRedirectUri = "https://example.com/logout"
             });
 
-            var transaction = await TestTransaction.SendAsync(server, "https://example.com/signout_with_specific_redirect_uri");
+            var transaction = await server.SendAsync("https://example.com/signout_with_specific_redirect_uri");
             Assert.Equal(HttpStatusCode.Redirect, transaction.Response.StatusCode);
             Assert.Contains(UrlEncoder.Default.Encode("http://www.example.com/specific_redirect_uri"), transaction.Response.Headers.Location.AbsoluteUri);
         }
diff --git a/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/TestServerExtensions.cs b/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/TestServerExtensions.cs
new file mode 100644
index 0000000000..a7085966a4
--- /dev/null
+++ b/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/TestServerExtensions.cs
@@ -0,0 +1,50 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System.Linq;
+using System.Net.Http;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+using Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect;
+using Microsoft.AspNetCore.TestHost;
+
+namespace Microsoft.AspNetCore.Authentication.Test.OpenIdConnect
+{
+    internal static class TestServerExtensions
+    {
+        public static Task<TestTransaction> SendAsync(this TestServer server, string url)
+        {
+            return SendAsync(server, url, cookieHeader: null);
+        }
+
+        public static async Task<TestTransaction> SendAsync(this TestServer server, string uri, string cookieHeader)
+        {
+            var request = new HttpRequestMessage(HttpMethod.Get, uri);
+            if (!string.IsNullOrEmpty(cookieHeader))
+            {
+                request.Headers.Add("Cookie", cookieHeader);
+            }
+
+            var transaction = new TestTransaction
+            {
+                Request = request,
+                Response = await server.CreateClient().SendAsync(request),
+            };
+
+            if (transaction.Response.Headers.Contains("Set-Cookie"))
+            {
+                transaction.SetCookie = transaction.Response.Headers.GetValues("Set-Cookie").ToList();
+            }
+
+            transaction.ResponseText = await transaction.Response.Content.ReadAsStringAsync();
+            if (transaction.Response.Content != null &&
+                transaction.Response.Content.Headers.ContentType != null &&
+                transaction.Response.Content.Headers.ContentType.MediaType == "text/xml")
+            {
+                transaction.ResponseElement = XElement.Parse(transaction.ResponseText);
+            }
+
+            return transaction;
+        }
+    }
+}
diff --git a/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/TestTransaction.cs b/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/TestTransaction.cs
index 3bbd3152b3..745c41350a 100644
--- a/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/TestTransaction.cs
+++ b/test/Microsoft.AspNetCore.Authentication.Test/OpenIdConnect/TestTransaction.cs
@@ -4,49 +4,12 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Net.Http;
-using System.Threading.Tasks;
 using System.Xml.Linq;
-using Microsoft.AspNetCore.TestHost;
 
 namespace Microsoft.AspNetCore.Authentication.Tests.OpenIdConnect
 {
     internal class TestTransaction
     {
-        public static Task<TestTransaction> SendAsync(TestServer server, string url)
-        {
-            return SendAsync(server, url, cookieHeader: null);
-        }
-
-        public static async Task<TestTransaction> SendAsync(TestServer server, string uri, string cookieHeader)
-        {
-            var request = new HttpRequestMessage(HttpMethod.Get, uri);
-            if (!string.IsNullOrEmpty(cookieHeader))
-            {
-                request.Headers.Add("Cookie", cookieHeader);
-            }
-
-            var transaction = new TestTransaction
-            {
-                Request = request,
-                Response = await server.CreateClient().SendAsync(request),
-            };
-
-            if (transaction.Response.Headers.Contains("Set-Cookie"))
-            {
-                transaction.SetCookie = transaction.Response.Headers.GetValues("Set-Cookie").ToList();
-            }
-
-            transaction.ResponseText = await transaction.Response.Content.ReadAsStringAsync();
-            if (transaction.Response.Content != null &&
-                transaction.Response.Content.Headers.ContentType != null &&
-                transaction.Response.Content.Headers.ContentType.MediaType == "text/xml")
-            {
-                transaction.ResponseElement = XElement.Parse(transaction.ResponseText);
-            }
-
-            return transaction;
-        }
-
         public HttpRequestMessage Request { get; set; }
 
         public HttpResponseMessage Response { get; set; }