How to unit test an Action method which returns JsonResult?

Question

If I have a controller like this:

[HttpPost]
public JsonResult FindStuff(string query) 
{
   var results = _repo.GetStuff(query);
   var jsonResult = results         


        

Answer 1

My solution is to write the extension method:

using System.Reflection;
using System.Web.Mvc;

namespace Tests.Extensions
{
    public static class JsonExtensions
    {
        public static object GetPropertyValue(this JsonResult json, string propertyName)
        {
            return json.Data.GetType().GetProperty(propertyName, BindingFlags.Instance | BindingFlags.Public).GetValue(json.Data, null);
        }
    }
}