VkNet.Categories.AudioCategory.Search C# (CSharp) Méthode

        public ReadOnlyCollection<Audio> Search(AudioSearchParams @params, out long totalCount)
        {
            if (string.IsNullOrEmpty(@params.Query))
            {
                throw new ArgumentNullException("Query is null or empty.", "query");
            }

            var response = Search(@params);

            totalCount = Convert.ToInt64(response.TotalCount);

            return response.ToReadOnlyCollection();
        }

 public void Search_AccessTokenInvalid_ThrowAccessTokenInvalidExcpetion()
 {
     var audio = new AudioCategory(new VkApi());
     int totalCount;
     This.Action(() => audio.Search("Beatles", out totalCount)).Throws<AccessTokenInvalidException>();
 }