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2026-07-13 13:02:50 +08:00

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C#

/*
* QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
* Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using NUnit.Framework;
using QuantConnect.Data;
using QuantConnect.Data.Market;
using QuantConnect.Orders;
using QuantConnect.Orders.Fees;
using QuantConnect.Securities;
using QuantConnect.Securities.Crypto;
namespace QuantConnect.Tests.Common.Orders.Fees
{
[TestFixture]
class BitfinexFeeModelTests
{
private Crypto _btcusd;
private Crypto _btceur;
private readonly IFeeModel _feeModel = new BitfinexFeeModel();
[SetUp]
public void Initialize()
{
var tz = TimeZones.NewYork;
_btcusd = new Crypto(
SecurityExchangeHours.AlwaysOpen(tz),
new Cash(Currencies.USD, 0, 1),
new Cash("BTC", 0, 0),
new SubscriptionDataConfig(typeof(TradeBar), Symbols.BTCUSD, Resolution.Minute, tz, tz, true, false, false),
new SymbolProperties("BTCUSD", Currencies.USD, 1, 0.01m, 0.00000001m, string.Empty),
ErrorCurrencyConverter.Instance,
RegisteredSecurityDataTypesProvider.Null
);
_btcusd.SetMarketPrice(new Tick(DateTime.UtcNow, _btcusd.Symbol, 100, 100));
_btceur = new Crypto(
SecurityExchangeHours.AlwaysOpen(tz),
new Cash("EUR", 0, 10),
new Cash("BTC", 0, 0),
new SubscriptionDataConfig(typeof(TradeBar), Symbols.BTCEUR, Resolution.Minute, tz, tz, true, false, false),
new SymbolProperties("BTCEUR", "EUR", 1, 0.01m, 0.00000001m, string.Empty),
ErrorCurrencyConverter.Instance,
RegisteredSecurityDataTypesProvider.Null
);
_btceur.SetMarketPrice(new Tick(DateTime.UtcNow, _btceur.Symbol, 100, 100));
}
[TestCase(1)]
[TestCase(-1)]
public void ReturnsFeeInQuoteCurrencyInAccountCurrency(decimal quantity)
{
var fee = _feeModel.GetOrderFee(
new OrderFeeParameters(
_btcusd,
new MarketOrder(_btcusd.Symbol, quantity, DateTime.UtcNow)
)
);
if (quantity > 0)
{
Assert.AreEqual("BTC", fee.Value.Currency);
// 1 (quantity) * 0.002 (taker fee)
Assert.AreEqual(0.002m, fee.Value.Amount);
}
else
{
Assert.AreEqual(Currencies.USD, fee.Value.Currency);
// 100 (price) * 0.002 (taker fee)
Assert.AreEqual(0.2m, fee.Value.Amount);
}
}
[TestCase(1)]
[TestCase(-1)]
public void ReturnsFeeInQuoteCurrencyInOtherCurrency(decimal quantity)
{
var fee = _feeModel.GetOrderFee(
new OrderFeeParameters(
_btceur,
new MarketOrder(_btceur.Symbol, quantity, DateTime.UtcNow)
)
);
if (quantity > 0)
{
Assert.AreEqual("BTC", fee.Value.Currency);
// 1 (quantity) * 0.002 (taker fee)
Assert.AreEqual(0.002m, fee.Value.Amount);
}
else
{
Assert.AreEqual("EUR", fee.Value.Currency);
// 100 (price) * 0.002 (taker fee)
Assert.AreEqual(0.2m, fee.Value.Amount);
}
}
}
}