public async Task ItShouldReturnCryptosFromCmcApi()
        {
            #region Act
            var response = await _cryptoController.GetCmcApi() as OkObjectResult;

            var cmcCryptos = response.Value as List <Crypto>;
            #endregion

            #region Assert
            Assert.Equal(15, cmcCryptos.Count());
            #endregion
        }