public void GetFriendsOnlineGivesEmptyWhenNoFriends()
        {
            var api = new GameStatsApi(storage);
            var friends = api.GetFriendsOnline(1);

            Assert.Equal(new List<User>(), friends);
        }
        public void GetFriendsOnlineGivesListOfContacts()
        {
            var api = new GameStatsApi(storage);
            var friends = api.GetFriendsOnline(0);

            Assert.Equal(storage.Users[0].Friends, friends);
        }