Unit Testing a DotNetNuke Private Assembly Module

/*
 * 
 * iFinity Smart Business Solutions - http://www.ifinity.com.au
 * Copyright (c) 2006
 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
 * documentation files (the "Software"), the rights to use, copy, modify, merge, publish, distribute, sublicense
 * copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the 
 * following conditions:

 * 1. The above copyright notice and this permission notice shall be included in all copies or substantial portions 
 *    of the Software.  
 * 2. The software may not be claimed as the original work and may not be sold as a stand alone product

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
 * TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 * DEALINGS IN THE SOFTWARE.
 * 
 * Some portions of the source code in this file were adapted from internet sources with no rights restrictions.
 * Any perceived copyright violations should be directed to the above website.
 */
using System;
using System.Collections.Generic;
using System.Text;
using System.Web.Hosting;
using System.Web;
using System.IO;

namespace iFinity.DNN.Utilities.Testing
{

    public static class UnitTestHelper
    {
        /// <summary>
        /// Sets the HTTP context with a valid simulated request
        /// </summary>
        /// <param name="host">Host.</param>
        /// <param name="application">Application.</param>
        public static void SetHttpContextWithSimulatedRequest(string host, string application, string appPhysicalDir, string pageName)
        {

            string appVirtualDir = "/";
            string page = application.Replace("/", string.Empty) + pageName;
            string query = string.Empty;
            TextWriter output = null;

            SimulatedHttpRequest workerRequest = new SimulatedHttpRequest(appVirtualDir, appPhysicalDir, page, query, output, host);
            HttpContext.Current = new HttpContext(workerRequest);

        }

    }

    /// <summary>
    /// Used to simulate an HttpRequest.
    /// </summary>
    public class SimulatedHttpRequest : SimpleWorkerRequest
    {

        string _host;

        /// <summary>
        /// Creates a new <see cref="SimulatedHttpRequest"/> instance.
        /// </summary>
        /// <param name="appVirtualDir">App virtual dir.</param>
        /// <param name="appPhysicalDir">App physical dir.</param>
        /// <param name="page">Page.</param>
        /// <param name="query">Query.</param>
        /// <param name="output">Output.</param>
        /// <param name="host">Host.</param>
        public SimulatedHttpRequest(string appVirtualDir, string appPhysicalDir, string page, string query, TextWriter output, string host)
            : base(appVirtualDir, appPhysicalDir, page, query, output)
        {

            if (host == null || host.Length == 0)

                throw new ArgumentNullException("host", "Host cannot be null nor empty.");

            _host = host;

        }



        /// <summary>

        /// Gets the name of the server.

        /// </summary>

        /// <returns></returns>

        public override string GetServerName()
        {

            return _host;

        }



        /// <summary>

        /// Maps the path to a filesystem path.

        /// </summary>

        /// <param name="virtualPath">Virtual path.</param>

        /// <returns></returns>

        public override string MapPath(string virtualPath)
        {

            return Path.Combine(this.GetAppPath(), virtualPath);

        }

    }


}