From ba63dab225f783d55b7654a15d8031b04cc0a777 Mon Sep 17 00:00:00 2001
From: Andrew Skiba <andrews@mono-cvs.ximian.com>
Date: Mon, 3 Jul 2006 15:35:14 +0000
Subject: [PATCH] Throw application-specific exception instead of type-cast

svn path=/trunk/mcs/; revision=62231
---
 .../System.Web/Test/mainsoft/NunitWeb/NunitWeb/MyHost.cs      | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mcs/class/System.Web/Test/mainsoft/NunitWeb/NunitWeb/MyHost.cs b/mcs/class/System.Web/Test/mainsoft/NunitWeb/NunitWeb/MyHost.cs
index 1c9bde4734074..df0e53745b081 100644
--- a/mcs/class/System.Web/Test/mainsoft/NunitWeb/NunitWeb/MyHost.cs
+++ b/mcs/class/System.Web/Test/mainsoft/NunitWeb/NunitWeb/MyHost.cs
@@ -66,7 +66,9 @@ private static HttpWorkerRequest GetMyWorkerRequest ()
 
 		private static MyData GetMyData (HttpWorkerRequest wr)
 		{
-			IForeignData fd = (IForeignData) wr;
+			IForeignData fd = wr as IForeignData;
+			if (fd == null)
+				throw new ArgumentException ("Invalid worker request. Probable reason is using WebTest.Invoke from a real web application");
 			MyData d = (MyData) fd[typeof (MyHost)];
 			if (d == null) {
 				d = new MyData ();