public void SaveFeeAndRetreiveByCurrencyPairNameTest_SavesAnObjectToDatabaseAndManipulatesIt_ChecksIfItIsUpdatedAsExpected()
{
Fee fee = new Fee("LTC/BTC", 4000, 500);
_persistanceRepository.SaveOrUpdate(fee);
List <Fee> retrievedFee = _feeRepository.GetFeeByCurrencyPair("LTC/BTC");
Assert.IsNotNull(retrievedFee);
Assert.AreEqual(fee.PercentageFee, retrievedFee[0].PercentageFee);
Assert.AreEqual(fee.Amount, retrievedFee[0].Amount);
}
public void GetFeeTest_TestsIfTheFeeIsasReturnedAsExpectedWhenFinalElementInTheTableIsReached_VerifiesThroughDatabaseQueries()
{
IFeeCalculationService feeCalculationService = (IFeeCalculationService)ContextRegistry.GetContext()["FeeCalculationService"];
IFeeRepository feeRepository = (IFeeRepository)ContextRegistry.GetContext()["FeeRepository"];
IFundsPersistenceRepository fundsPersistenceRepository = (IFundsPersistenceRepository)ContextRegistry.GetContext()["FundsPersistenceRepository"];
AccountId accountId = new AccountId(1);
List <Fee> allFees = feeRepository.GetAllFees();
Assert.IsNotNull(allFees);
string currencyPair = allFees[0].CurrencyPair;
Tuple <string, string> splittedCurrencyPair = CurrencySplitterService.SplitCurrencyPair(currencyPair);
// As amount, the value is so large that it is always greater than any fee in the table
Ledger ledger = new Ledger("1", DateTime.Now, LedgerType.Trade, new Currency(splittedCurrencyPair.Item2),
2000000, 0, 0, 0, "1", "1", false, accountId);
fundsPersistenceRepository.SaveOrUpdate(ledger);
List <Fee> feeByCurrencyPair = feeRepository.GetFeeByCurrencyPair(currencyPair);
Assert.IsNotNull(feeByCurrencyPair);
decimal lastElementFee = (feeByCurrencyPair.Last().PercentageFee / 100) * (1000 * 2000);
decimal feeFromService = feeCalculationService.GetFee(new Currency(splittedCurrencyPair.Item1),
new Currency(splittedCurrencyPair.Item2),
accountId, 1000, 2000);
Assert.AreEqual(lastElementFee, feeFromService);
}
public void GetFeeTest_TestsIfTheFeeIsasReturnedAsExpectedWhenMiddleElementsAreReached_VerifiesThroughDatabaseQueries()
{
IFeeCalculationService feeCalculationService = (IFeeCalculationService)ContextRegistry.GetContext()["FeeCalculationService"];
IFeeRepository feeRepository = (IFeeRepository)ContextRegistry.GetContext()["FeeRepository"];
IFundsPersistenceRepository fundsPersistenceRepository = (IFundsPersistenceRepository)ContextRegistry.GetContext()["FundsPersistenceRepository"];
AccountId accountId = new AccountId(1);
List <Fee> allFees = feeRepository.GetAllFees();
Assert.IsNotNull(allFees);
string currencyPair = allFees[0].CurrencyPair;
Tuple <string, string> splittedCurrencyPair = CurrencySplitterService.SplitCurrencyPair(currencyPair);
List <Fee> feeByCurrencyPair = feeRepository.GetFeeByCurrencyPair(currencyPair);
Assert.IsNotNull(feeByCurrencyPair);
if (feeByCurrencyPair.Count > 4)
{
decimal amount = feeByCurrencyPair[feeByCurrencyPair.Count - 2].Amount;
Ledger ledger = new Ledger("1", DateTime.Now, LedgerType.Trade, new Currency(splittedCurrencyPair.Item2),
amount, 0, 0, 0, "1", "1", false, accountId);
fundsPersistenceRepository.SaveOrUpdate(ledger);
decimal lastElementFee = (feeByCurrencyPair[feeByCurrencyPair.Count - 2].PercentageFee / 100) * (10 * 20);
decimal feeFromService = feeCalculationService.GetFee(new Currency(splittedCurrencyPair.Item1),
new Currency(splittedCurrencyPair.Item2),
accountId, 10, 20);
Assert.AreEqual(lastElementFee, feeFromService);
}
}
/// <summary>
/// Get the Fee Instance from the database
/// </summary>
/// <param name="baseCurrency"></param>
/// <param name="quoteCurrency"></param>
/// <param name="amount"></param>
/// <returns></returns>
private decimal GetFeeInstance(Currency baseCurrency, Currency quoteCurrency, decimal amount)
{
string currencyPair = baseCurrency.Name + quoteCurrency.Name;
List <Fee> feeList = _feeRepository.GetFeeByCurrencyPair(currencyPair);
for (int i = 0; i < feeList.Count; i++)
{
// E.g., if amount == 500 && currentFee element = 1000
if (feeList[i].Amount >= amount)
{
Fee currentFee = _feeRepository.GetFeeByCurrencyAndAmount(currencyPair, feeList[i].Amount);
return(currentFee.PercentageFee);
}
// If this is not the last element in the list
if ((feeList.Count - i) != 1)
{
// E.g., if amount == 1100 && currentFee = 1000 && currentFee + 1 = 2000
if (feeList[i].Amount <amount && feeList[i + 1].Amount> amount)
{
Fee currentFee = _feeRepository.GetFeeByCurrencyAndAmount(currencyPair, feeList[i].Amount);
return(currentFee.PercentageFee);
}
}
// If this is the last element, that means the amount is greater than or equal to the last percentage element,
// so we provide the last element
else
{
if (feeList[i].Amount <= amount)
{
Fee currentFee = _feeRepository.GetFeeByCurrencyAndAmount(currencyPair, feeList[i].Amount);
return(currentFee.PercentageFee);
}
}
}
return(0);
}