why the hell don't you work

Octokit.Tests.Integration/Helpers/ApplicationTestAttribute.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using Xunit;
 using Xunit.Abstractions;
 using Xunit.Sdk;
@@ -14,12 +13,11 @@ namespace Octokit.Tests.Integration
             if (String.IsNullOrWhiteSpace(Helper.ClientId)
                 && String.IsNullOrWhiteSpace(Helper.ClientSecret))
             {
-                return Enumerable.Empty<IXunitTestCase>();
-            }
-            else
-            {
-                return new[] { new XunitTestCase(testMethod) };
+                yield return new SkipTestCase(testMethod,
+                    "Environment variables are not set for this test - set OCTOKIT_CLIENTID and OCTOKIT_CLIENTSECRET");
             }
+
+            yield return new XunitTestCase(testMethod);
         }
     }
 
@@ -27,4 +25,13 @@ namespace Octokit.Tests.Integration
     public class ApplicationTestAttribute : FactAttribute
     {
     }
+
+    public class SkipTestCase : XunitTestCase
+    {
+        public SkipTestCase(ITestMethod testMethod, string skipReason)
+            : base(testMethod)
+        {
+            SkipReason = skipReason;
+        }
+    }
 }