public async void GetInfo_Authenticated()
        {
            //ARRANGE: authenticate user
            MyUser user = fixture.Authenticate_User("Miguel");

            //ARRANGE: Get a valid and existing privateSongId
            string privateSongId = MySqlHelpers.GetRandomUserPrivateSongId(user.UserName);

            //ACT:
            string responseContentString = await GetInfo_Act(privateSongId, HttpStatusCode.OK);

            //ASSERT: Response object matches database state
            PrivateSongBM responseObject =
                JsonConvert.DeserializeObject <PrivateSongBM>(responseContentString);

            Assert.True(MySqlHelpers.CheckIfPrivateSongBmMatchesDb(privateSongId, responseObject));
        }