public async Task fetchFriendsTest2()
        {
            VKUser         user    = new VKUser(198489790);
            FriendsFetcher fetcher = new FriendsFetcher(user);
            List <VKUser>  result  = await fetcher.fetchFriends();

            Assert.AreNotEqual(0, result.Count, "Method fetchFriends() don`t find friends correctly");
        }
        public async Task fetchFriendsTest1()
        {
            VKUser         user    = new VKUser(325145123);
            FriendsFetcher fetcher = new FriendsFetcher(user);
            List <VKUser>  friends = new List <VKUser>();

            friends.Add(new VKUser(27735856));
            friends.Add(new VKUser(59054252));
            List <VKUser> result = await fetcher.fetchFriends();

            Assert.AreEqual(friends[0].ID, result[0].ID, "Method fetchFriends() don`t find friends correctly");
            Assert.AreEqual(friends[1].ID, result[1].ID, "Method fetchFriends() don`t find friends correctly");
        }