Update moq.md

docs/testing/moq.md

@@ -9,6 +9,27 @@ grand_parent: My Docs
 ### How to MOQ a HTTPContext in MVC/API for .Net Framework
 ---
 
+- We need to set the Controller Context for the controller under test. From that the HTTPContext is pulled. 
+
 ```csharp
+ public static ControllerContext GetControllerContext(Controller controller)
+ {
+     var mockHttpContext = new Mock<HttpContextBase>();
+     var mockRequest = new Mock<HttpRequestBase>();
+
+     var routeData = new RouteData();
+     routeData.Values["controller"] = "Some controller name";
+     routeData.Values["action"] = "some action name";
+     // feel free to set anything else required for the context like route data or claims etc.
+
+     var requestContext = new RequestContext(mockHttpContext.Object, routeData);
+     mockHttpContext.Setup(ctx => ctx.Request).Returns(mockRequest.Object);
+     mockHttpContext.Setup(ctx => ctx.Request.RequestContext).Returns(requestContext);
+     return new ControllerContext(requestContext, controller) { HttpContext = mockHttpContext.Object };
+ }
+
+// usage inside a test
 
-```
+var _sut = new MyController(); //  inject dependencies if any
+_sut.ControllerContext = GetControllerContext( _sut);
+```