public void SaveFeeAndRetreiveByIdTest_SavesAnObjectToDatabaseAndManipulatesIt_ChecksIfItIsUpdatedAsExpected()
{
Fee fee = new Fee("LTC/BTC", 4000, 500);
_persistanceRepository.SaveOrUpdate(fee);
List <Fee> retrievedFee = _feeRepository.GetFeeByCurrencyPair("LTC/BTC");
Assert.IsNotNull(retrievedFee);
int id = retrievedFee[0].Id;
_persistanceRepository.SaveOrUpdate(retrievedFee);
fee = _feeRepository.GetFeeById(id);
Assert.AreEqual(fee.PercentageFee, fee.PercentageFee);
Assert.AreEqual(fee.Amount, fee.Amount);
}