Adding HTTP method constants

src/Microsoft.AspNetCore.Http.Abstractions/HttpMethods.cs

@@ -0,0 +1,24 @@
+// 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;
+
+namespace Microsoft.AspNetCore.Http
+{
+    public static class HttpMethods
+    {
+        public const string Connect = "CONNECT";
+        public const string Delete = "DELETE";
+        public const string Get = "GET";
+        public const string Options = "OPTIONS";
+        public const string Patch = "PATCH";
+        public const string Post = "POST";
+        public const string Put = "PUT";
+        public const string Trace = "TRACE";
+
+        public static bool Equals(string firstMethod, string secondMethod)
+        {
+            return StringComparer.OrdinalIgnoreCase.Equals(firstMethod, secondMethod);
+        }
+    }
+}

test/Microsoft.AspNetCore.Owin.Tests/OwinFeatureCollectionTests.cs

@@ -4,6 +4,7 @@
 using System.Collections.Generic;
 using Microsoft.AspNetCore.Http.Features;
 using Xunit;
+using Microsoft.AspNetCore.Http;
 
 namespace Microsoft.AspNetCore.Owin
 {
@@ -25,15 +26,15 @@ public void OwinHttpEnvironmentCanBeCreated()
         {
             var env = new Dictionary<string, object>
             {
-                { "owin.RequestMethod", "POST" },
+                { "owin.RequestMethod", HttpMethods.Post },
                 { "owin.RequestPath", "/path" },
                 { "owin.RequestPathBase", "/pathBase" },
                 { "owin.RequestQueryString", "name=value" },
             };
             var features = new OwinFeatureCollection(env);
 
             var requestFeature = Get<IHttpRequestFeature>(features);
-            Assert.Equal(requestFeature.Method, "POST");
+            Assert.Equal(requestFeature.Method, HttpMethods.Post);
             Assert.Equal(requestFeature.Path, "/path");
             Assert.Equal(requestFeature.PathBase, "/pathBase");
             Assert.Equal(requestFeature.QueryString, "?name=value");