diff --git a/src/VisualStudio/LiveShare/Test/AbstractLiveShareRequestHandlerTests.cs b/src/VisualStudio/LiveShare/Test/AbstractLiveShareRequestHandlerTests.cs
index 69f4b3feac5e5186098e7332c91a3e9293de9523..cf03c88418209cc9f1972d89f6618ce4bf7df8b3 100644
--- a/src/VisualStudio/LiveShare/Test/AbstractLiveShareRequestHandlerTests.cs
+++ b/src/VisualStudio/LiveShare/Test/AbstractLiveShareRequestHandlerTests.cs
@@ -11,6 +11,7 @@
 using Microsoft.VisualStudio.Composition;
 using Microsoft.VisualStudio.LanguageServer.Protocol;
 using Microsoft.VisualStudio.LiveShare.LanguageServices;
+using Newtonsoft.Json.Linq;
 using Roslyn.Test.Utilities;
 using RoslynHandlers = Microsoft.CodeAnalysis.LanguageServer.Handler;
 
@@ -30,6 +31,11 @@ public bool IsContainedInRootFolders(Uri uriToCheck)
                 return true;
             }
 
+            public bool IsKnownWorkspaceFile(Uri uriToCheck)
+            {
+                throw new NotImplementedException();
+            }
+
             public Task RegisterExternalFilesAsync(Uri[] filePaths)
             {
                 return Task.CompletedTask;
@@ -64,7 +70,7 @@ protected override ExportProvider GetExportProvider()
 
         protected static async Task<ResponseType> TestHandleAsync<RequestType, ResponseType>(Solution solution, RequestType request)
         {
-            var requestContext = new RequestContext<Solution>(solution, new MockHostProtocolConverter(), new ClientCapabilities());
+            var requestContext = new RequestContext<Solution>(solution, new MockHostProtocolConverter(), JObject.FromObject(new ClientCapabilities()));
             return await GetHandler<RequestType, ResponseType>(solution).HandleAsync(request, requestContext, CancellationToken.None);
         }
 
diff --git a/src/VisualStudio/LiveShare/Test/DiagnosticsHandlerTests.cs b/src/VisualStudio/LiveShare/Test/DiagnosticsHandlerTests.cs
index 3d45a1ed9dc9b1563ab45b637ba7caa5574fcdb6..a152896780df8ae724e51ed27fef470a4b6b1998 100644
--- a/src/VisualStudio/LiveShare/Test/DiagnosticsHandlerTests.cs
+++ b/src/VisualStudio/LiveShare/Test/DiagnosticsHandlerTests.cs
@@ -4,7 +4,7 @@
 using System.Linq;
 using System.Threading.Tasks;
 using Microsoft.CodeAnalysis.Editor.UnitTests.Workspaces;
-using Microsoft.VisualStudio.LiveShare.LanguageServices.Protocol;
+using Microsoft.VisualStudio.LanguageServices.LiveShare.Protocol;
 using Xunit;
 using LSP = Microsoft.VisualStudio.LanguageServer.Protocol;