httpcontext in asp.net unit test

        [TestMethod]
        [HostType("ASP.NET")]
        [UrlToTest("http://localhost:25153/qq/a.aspx")]
        [AspNetDevelopmentServerHost(@"C:\Users\Public\Documents\ooooooo", "/")]
        public void Test1()
        {
            var url = HttpContext.Current.Request.Url;
            var root = HttpContext.Current.Server.MapPath("~/");
            Assert.AreNotEqual(url, null);
        }

Using above code, there is a probem that the unit test method can't be debug, the break point will never be hitted.

        [TestMethod]
        [HostType("ASP.NET")]
        [UrlToTest("http://localhost:25153/qq/a.aspx")]
        [AspNetDevelopmentServerHost(@"C:\Users\Public\Documents\ooooooo", "/")]
        public void Test1()
        {

            //System.Diagnostics.Debugger.Break();
            System.Threading.Thread.Sleep( * );
//attach the web server process when it launched
            var url = HttpContext.Current.Request.Url;
            var root = HttpContext.Current.Server.MapPath("~/");
            Assert.AreNotEqual(url, null);
        }

reference:

http://msdn.microsoft.com/en-us/library/ms243172.aspx

http://www.asp.net/mvc/tutorials/older-versions/unit-testing/creating-unit-tests-for-asp-net-mvc-applications-cs