added resource mapping validation tests

NzbDrone.Common/Reflection/ReflectionExtensions.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+
+namespace NzbDrone.Common.Reflection
+{
+    public static class ReflectionExtensions
+    {
+        public static List<PropertyInfo> GetSimpleProperties(this Type type)
+        {
+            var properties = type.GetProperties();
+            return properties.Where(c => c.PropertyType.IsSimpleType()).ToList();
+        }
+
+
+        public static List<Type> ImplementationsOf<T>(this Assembly assembly)
+        {
+            return assembly.GetTypes().Where(c => typeof(T).IsAssignableFrom(c)).ToList();
+        }
+
+
+        public static bool IsSimpleType(this Type type)
+        {
+            if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>))
+            {
+                type = type.GetGenericArguments()[0];
+            }
+
+            return type.IsPrimitive
+                   || type.IsEnum
+                   || type == typeof(string)
+                   || type == typeof(DateTime)
+                   || type == typeof(Decimal);
+        }
+
+        public static bool IsReadable(this PropertyInfo propertyInfo)
+        {
+            return propertyInfo.CanRead && propertyInfo.GetGetMethod(false) != null;
+        }
+
+        public static bool IsWritable(this PropertyInfo propertyInfo)
+        {
+            return propertyInfo.CanWrite && propertyInfo.GetSetMethod(false) != null;
+        }
+
+    }
+}