Added some tests for PagingSpecExtensions

Allow specials in missing
Dropped ListSortDirection

NzbDrone.Core/Datastore/PagingSpec.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.ComponentModel;
 using System.Linq;
 using System.Text;
 
@@ -12,7 +11,13 @@ namespace NzbDrone.Core.Datastore
         public int PageSize { get; set; }
         public int TotalRecords { get; set; }
         public string SortKey { get; set; }
-        public ListSortDirection SortDirection { get; set; }
-        public List<TModel> Records { get; set; } 
+        public SortDirection SortDirection { get; set; }
+        public List<TModel> Records { get; set; }
+    }
+
+    public enum SortDirection
+    {
+        Ascending,
+        Descending
     }
 }

NzbDrone.Core/Datastore/PagingSpecExtensions.cs

@@ -20,6 +20,13 @@ namespace NzbDrone.Core.Datastore
             return (pagingSpec.Page - 1)*pagingSpec.PageSize;
         }
 
+        public static Marr.Data.QGen.SortDirection ToSortDirection<TModel>(this PagingSpec<TModel> pagingSpec)
+        {
+            if (pagingSpec.SortDirection == SortDirection.Descending) return Marr.Data.QGen.SortDirection.Desc;
+
+            return Marr.Data.QGen.SortDirection.Asc;
+        }
+
         private static Expression<Func<TModel, object>> CreateExpression<TModel>(string propertyName)
         {
             Type type = typeof(TModel);