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

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2.9 KiB
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 NUnit.Framework;
using QuantConnect.Data.Market;
using QuantConnect.Indicators;
namespace QuantConnect.Tests.Indicators
{
[TestFixture]
public class ChaikinMoneyFlowTests : CommonIndicatorTests<TradeBar>
{
protected override IndicatorBase<TradeBar> CreateIndicator()
{
return new ChaikinMoneyFlow("CMF", 20);
}
protected override string TestFileName => "spy_cmf.txt";
protected override string TestColumnName => "CMF_20";
[Test]
public void TestTradeBarsWithNoVolume()
{
// As volume is a multiplier in numerator, should return default value 0m.
var cmf = new ChaikinMoneyFlow("CMF", 3);
foreach (var data in TestHelper.GetDataStream(4))
{
var tradeBar = new TradeBar
{
Open = data.Value,
Close = data.Value,
High = data.Value,
Low = data.Value,
Volume = 0
};
cmf.Update(tradeBar);
}
Assert.AreEqual(cmf.Current.Value, 0m);
}
[Test]
public void TestDivByZero()
{
var cmf = new ChaikinMoneyFlow("CMF", 3);
foreach (var data in TestHelper.GetDataStream(4))
{
// Should handle High = Low case by returning 0m.
var tradeBar = new TradeBar
{
Open = data.Value,
Close = data.Value,
High = 1,
Low = 1,
Volume = 1
};
cmf.Update(tradeBar);
}
Assert.AreEqual(cmf.Current.Value, 0m);
}
/// <summary>
/// The final value of this indicator is zero because it uses the Volume of the bars it receives.
/// Since RenkoBar's don't always have Volume, the final current value is zero. Therefore we
/// skip this test
/// </summary>
/// <param name="indicator"></param>
protected override void IndicatorValueIsNotZeroAfterReceiveRenkoBars(IndicatorBase indicator)
{
}
}
}