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

77 lines
2.8 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;
using QuantConnect.Data.Market;
using QuantConnect.Indicators;
using System;
namespace QuantConnect.Tests.Indicators
{
[TestFixture]
public class AccelerationBandsTests : CommonIndicatorTests<IBaseDataBar>
{
protected override IndicatorBase<IBaseDataBar> CreateIndicator()
{
RenkoBarSize = 1m;
VolumeRenkoBarSize = 0.5m;
return new AccelerationBands(period: 20, width: 4m);
}
protected override string TestFileName => "spy_acceleration_bands_20_4.txt";
protected override string TestColumnName => "MiddleBand";
[Test]
public void ComparesWithExternalDataLowerBand()
{
var abands = CreateIndicator();
TestHelper.TestIndicator(
abands,
"spy_acceleration_bands_20_4.txt",
"LowerBand",
(ind, expected) => Assert.AreEqual(expected, (double) ((AccelerationBands) ind).LowerBand.Current.Value,
delta: 1e-4, message: "Lower band test fail.")
);
}
[Test]
public void ComparesWithExternalDataUpperBand()
{
var abands = CreateIndicator();
TestHelper.TestIndicator(
abands,
"spy_acceleration_bands_20_4.txt",
"UpperBand",
(ind, expected) => Assert.AreEqual(expected, (double) ((AccelerationBands) ind).UpperBand.Current.Value,
delta: 1e-4, message: "Upper band test fail.")
);
}
[Test]
public void WorksWithLowValues()
{
var abands = CreateIndicator();
var random = new Random();
var time = DateTime.UtcNow;
for(int i = 0; i < 40; i++)
{
var value = random.NextDouble() * 0.000000000000000000000000000001;
Assert.DoesNotThrow(() => abands.Update(new TradeBar { High = (decimal)value, Low = (decimal)value, Time = time.AddDays(i)}));
}
}
}
}