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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 NUnit.Framework;
using QuantConnect.Data.Market;
using QuantConnect.Indicators;
using System;
using System.Linq;
namespace QuantConnect.Tests.Indicators
{
[TestFixture]
public class ArmsIndexTests : AdvanceDeclineDifferenceTests
{
protected override IndicatorBase<TradeBar> CreateIndicator()
{
var indicator = new ArmsIndex("test_name");
if (SymbolList.Count > 2)
{
SymbolList.Take(3).ToList().ForEach(indicator.AddStock);
}
else
{
indicator.Add(Symbols.AAPL);
indicator.Add(Symbols.IBM);
indicator.Add(Symbols.GOOG);
RenkoBarSize = 5000000;
}
return indicator;
}
[Test]
public override void ShouldIgnoreRemovedStocks()
{
var trin = (ArmsIndex)CreateIndicator();
var reference = System.DateTime.Today;
trin.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
trin.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
trin.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
// value is not ready yet
Assert.AreEqual(0m, trin.Current.Value);
trin.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 2, Volume = 100, Time = reference.AddMinutes(2) });
trin.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 0.5m, Volume = 100, Time = reference.AddMinutes(2) });
trin.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 3, Volume = 100, Time = reference.AddMinutes(2) });
Assert.AreEqual(1m, trin.Current.Value);
trin.Reset();
trin.Remove(Symbols.IBM);
trin.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
trin.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
trin.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
// value is not ready yet
Assert.AreEqual(0m, trin.Current.Value);
trin.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 2, Volume = 100, Time = reference.AddMinutes(2) });
trin.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 0.5m, Volume = 100, Time = reference.AddMinutes(2) });
trin.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 3, Volume = 100, Time = reference.AddMinutes(2) });
Assert.AreNotEqual(1m, trin.Current.Value);
}
[Test]
public override void IgnorePeriodIfAnyStockMissed()
{
var adr = (ArmsIndex)CreateIndicator();
adr.Add(Symbols.MSFT);
var reference = System.DateTime.Today;
adr.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
adr.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
adr.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
adr.Update(new TradeBar() { Symbol = Symbols.MSFT, Close = 1, Volume = 100, Time = reference.AddMinutes(1) });
// value is not ready yet
Assert.AreEqual(0m, adr.Current.Value);
adr.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 2, Volume = 100, Time = reference.AddMinutes(2) });
adr.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 0.5m, Volume = 100, Time = reference.AddMinutes(2) });
adr.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 3, Volume = 100, Time = reference.AddMinutes(2) });
Assert.AreEqual(0m, adr.Current.Value);
adr.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 3, Volume = 100, Time = reference.AddMinutes(3) });
adr.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 1, Volume = 100, Time = reference.AddMinutes(3) });
adr.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 1, Volume = 200, Time = reference.AddMinutes(3) });
adr.Update(new TradeBar() { Symbol = Symbols.MSFT, Close = 1, Volume = 100, Time = reference.AddMinutes(3) });
Assert.AreEqual(2m, adr.Current.Value);
adr.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 1, Volume = 100, Time = reference.AddMinutes(4) });
adr.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 2, Volume = 250, Time = reference.AddMinutes(4) });
adr.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 2, Volume = 100, Time = reference.AddMinutes(4) });
adr.Update(new TradeBar() { Symbol = Symbols.MSFT, Close = 2, Volume = 150, Time = reference.AddMinutes(4) });
Assert.AreEqual(3m / 5m, adr.Current.Value);
adr.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 2, Volume = 140, Time = reference.AddMinutes(5) });
adr.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 5, Volume = 110, Time = reference.AddMinutes(5) });
adr.Update(new TradeBar() { Symbol = Symbols.MSFT, Close = 1, Volume = 150, Time = reference.AddMinutes(5) });
Assert.AreEqual(3m / 5m, adr.Current.Value);
adr.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 2, Volume = 120, Time = reference.AddMinutes(6) });
adr.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 3, Volume = 350, Time = reference.AddMinutes(6) });
adr.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 4, Volume = 200, Time = reference.AddMinutes(6) });
Assert.AreEqual(3m / 5m, adr.Current.Value);
}
[Test]
public override void WarmsUpProperly()
{
var indicator = CreateIndicator();
var reference = System.DateTime.Today;
indicator.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 1, Volume = 1, Time = reference.AddMinutes(1) });
indicator.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 2, Volume = 60, Time = reference.AddMinutes(2) });
indicator.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 1, Volume = 1, Time = reference.AddMinutes(1) });
indicator.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 0.5m, Volume = 10, Time = reference.AddMinutes(2) });
indicator.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 1, Volume = 1, Time = reference.AddMinutes(1) });
indicator.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 3, Volume = 40, Time = reference.AddMinutes(2) });
Assert.IsTrue(indicator.IsReady);
Assert.AreEqual(0.2m, indicator.Current.Value);
Assert.AreEqual(6, indicator.Samples);
}
[Test]
public override void WarmsUpOrdered()
{
var indicator = CreateIndicator();
var reference = System.DateTime.Today;
indicator.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 1, Volume = 1, Time = reference.AddMinutes(1) });
indicator.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 1, Volume = 1, Time = reference.AddMinutes(1) });
indicator.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 1, Volume = 1, Time = reference.AddMinutes(1) });
// indicator is not ready yet
Assert.IsFalse(indicator.IsReady);
indicator.Update(new TradeBar() { Symbol = Symbols.AAPL, Close = 2, Volume = 60, Time = reference.AddMinutes(2) });
indicator.Update(new TradeBar() { Symbol = Symbols.IBM, Close = 0.5m, Volume = 10, Time = reference.AddMinutes(2) });
indicator.Update(new TradeBar() { Symbol = Symbols.GOOG, Close = 3, Volume = 40, Time = reference.AddMinutes(2) });
Assert.IsTrue(indicator.IsReady);
Assert.AreEqual(0.2m, indicator.Current.Value);
}
[Test]
public override void TimeMovesForward()
{
var indicator = CreateIndicator();
var period = (indicator as IIndicatorWarmUpPeriodProvider)?.WarmUpPeriod;
if (!period.HasValue)
{
Assert.Ignore($"{indicator.Name} is not IIndicatorWarmUpPeriodProvider");
return;
}
var startDate = new DateTime(2019, 1, 1);
for (var i = 10; i > 0; i--)
{
var input = GetInput(Symbols.AAPL, startDate, i);
indicator.Update(input);
}
for (var i = 10; i > 0; i--)
{
var input = GetInput(Symbols.IBM, startDate, i);
indicator.Update(input);
}
for (var i = 10; i > 0; i--)
{
var input = GetInput(Symbols.GOOG, startDate, i);
indicator.Update(input);
}
Assert.AreEqual(3, indicator.Samples);
indicator.Reset();
for (var i = 0; i < 10; i++)
{
var input = GetInput(Symbols.AAPL, startDate, i);
indicator.Update(input);
}
for (var i = 0; i < 10; i++)
{
var input = GetInput(Symbols.IBM, startDate, i);
indicator.Update(input);
}
for (var i = 0; i < 10; i++)
{
var input = GetInput(Symbols.GOOG, startDate, i);
indicator.Update(input);
}
Assert.AreEqual(30, indicator.Samples);
}
protected override string TestFileName => "arms_data.txt";
protected override string TestColumnName => "TRIN";
/// <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)
{
}
}
}