private static void SetAclCacheProvider(
            HttpConfiguration config,
            Func<ICache> cacheProvider)
        {
            if (cacheProvider.IsNull()) return;

            config
                .GetAclConfiguration()
                .RegisterAclCacheProvider(cacheProvider);
        }
 protected static AclConfiguration CreateSubjectUnderTest(
     HttpConfiguration config)
 {
     return config.GetAclConfiguration();
 }