Fixes a couple issues with some routing tests.

src/Umbraco.Tests/Routing/RenderRouteHandlerTests.cs

@@ -38,6 +38,7 @@ namespace Umbraco.Tests.Routing
 		public override void TearDown()
 		{
 			base.TearDown();
+		    UmbracoContext.Current = null;
 			RouteTable.Routes.Clear();
 			System.Configuration.ConfigurationManager.AppSettings.Set("umbracoPath", "");
 			SurfaceControllerResolver.Reset();
@@ -97,7 +98,7 @@ namespace Umbraco.Tests.Routing
             var template = CreateTemplate(templateName);
             var route = RouteTable.Routes["Umbraco_default"];
 			var routeData = new RouteData() {Route = route};
-			var routingContext = GetRoutingContext("~/dummy-page", template.Id, routeData);
+			var routingContext = GetRoutingContext("~/dummy-page", template.Id, routeData, true);
 			var docRequest = new PublishedContentRequest(routingContext.UmbracoContext.CleanedUmbracoUrl, routingContext)
 				{
 					PublishedContent = routingContext.PublishedContentStore.GetDocumentById(routingContext.UmbracoContext, 1172), 

src/Umbraco.Tests/TestHelpers/BaseRoutingTest.cs

@@ -25,17 +25,18 @@ namespace Umbraco.Tests.TestHelpers
 			ConfigurationManager.AppSettings.Set("umbracoHideTopLevelNodeFromPath", "");					
 		}
 
-		/// <summary>
-		/// Return a new RoutingContext
-		/// </summary>
-		/// <param name="url"></param>
-		/// <param name="templateId">
-		/// The template Id to insert into the Xml cache file for each node, this is helpful for unit testing with templates but you		 
-		/// should normally create the template in the database with this id
-		///</param>
-		/// <param name="routeData"></param>
-		/// <returns></returns>
-		protected RoutingContext GetRoutingContext(string url, int templateId, RouteData routeData = null)
+	    ///  <summary>
+	    ///  Return a new RoutingContext
+	    ///  </summary>
+	    ///  <param name="url"></param>
+	    ///  <param name="templateId">
+	    ///  The template Id to insert into the Xml cache file for each node, this is helpful for unit testing with templates but you		 
+	    ///  should normally create the template in the database with this id
+	    /// </param>
+	    ///  <param name="routeData"></param>
+	    /// <param name="setUmbracoContextCurrent">set to true to also set the singleton UmbracoContext.Current to the context created with this method</param>
+	    /// <returns></returns>
+	    protected RoutingContext GetRoutingContext(string url, int templateId, RouteData routeData = null, bool setUmbracoContextCurrent = false)
 		{
 			var umbracoContext = GetUmbracoContext(url, templateId, routeData);
 			var contentStore = new DefaultPublishedContentStore();
@@ -51,6 +52,9 @@ namespace Umbraco.Tests.TestHelpers
 			//assign the routing context back to the umbraco context
 			umbracoContext.RoutingContext = routingContext;
 
+	        if (setUmbracoContextCurrent)
+	            UmbracoContext.Current = umbracoContext;
+
 			return routingContext;
 		}
 

src/Umbraco.Web/Mvc/RenderMvcController.cs

@@ -22,6 +22,12 @@ namespace Umbraco.Web.Mvc
 		{
 			ActionInvoker = new RenderActionInvoker();
 		}
+
+        public RenderMvcController(UmbracoContext umbracoContext)
+            : base(umbracoContext)
+        {
+            
+        }
 		
 		private PublishedContentRequest _publishedContentRequest;
 

src/Umbraco.Web/Mvc/RenderRouteHandler.cs

@@ -232,7 +232,7 @@ namespace Umbraco.Web.Mvc
 			var def = new RouteDefinition
 				{
 					ControllerName = defaultControllerName,
-					Controller = new RenderMvcController(),
+					Controller = new RenderMvcController(UmbracoContext),
 					PublishedContentRequest = publishedContentRequest,
 					ActionName = ((Route)requestContext.RouteData.Route).Defaults["action"].ToString(),
 					HasHijackedRoute = false