Tests: Added test for interpolation of PTOIdleLosses

VectoCore/VectoCoreTest/Models/Simulation/PTOIdleLossTest.cs

+/*
+* This file is part of VECTO.
+*
+* Copyright © 2012-2016 European Union
+*
+* Developed by Graz University of Technology,
+*              Institute of Internal Combustion Engines and Thermodynamics,
+*              Institute of Technical Informatics
+*
+* VECTO is licensed under the EUPL, Version 1.1 or - as soon they will be approved
+* by the European Commission - subsequent versions of the EUPL (the "Licence");
+* You may not use VECTO except in compliance with the Licence.
+* You may obtain a copy of the Licence at:
+*
+* https://joinup.ec.europa.eu/community/eupl/og_page/eupl
+*
+* Unless required by applicable law or agreed to in writing, VECTO
+* distributed under the Licence is distributed on an "AS IS" basis,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the Licence for the specific language governing permissions and
+* limitations under the Licence.
+*
+* Authors:
+*   Stefan Hausberger, hausberger@ivt.tugraz.at, IVT, Graz University of Technology
+*   Christian Kreiner, christian.kreiner@tugraz.at, ITI, Graz University of Technology
+*   Michael Krisper, michael.krisper@tugraz.at, ITI, Graz University of Technology
+*   Raphael Luz, luz@ivt.tugraz.at, IVT, Graz University of Technology
+*   Markus Quaritsch, markus.quaritsch@tugraz.at, IVT, Graz University of Technology
+*   Martin Rexeis, rexeis@ivt.tugraz.at, IVT, Graz University of Technology
+*/
+
+using System;
+using System.Collections.Generic;
+using NUnit.Framework;
+using TUGraz.VectoCommon.Utils;
+using TUGraz.VectoCore.Models.SimulationComponent.Data;
+using TUGraz.VectoCore.Tests.Utils;
+
+namespace TUGraz.VectoCore.Tests.Models.Simulation
+{
+	[TestFixture]
+	public class PTOIdleLossTest
+	{
+		[TestCase]
+		public void PTOIdleLosses_FixPoints()
+		{
+			var entryList = new List<PTOIdleLossMap.Entry>();
+			for (var i = 0; i < 2000; i += 200) {
+				entryList.Add(new PTOIdleLossMap.Entry {
+					EngineSpeed = i.RPMtoRad(),
+					PTOTorque = (Math.Sqrt(i) / 10).SI<NewtonMeter>()
+				});
+			}
+			var pto = new PTOIdleLossMap(entryList.ToArray());
+
+			foreach (var entry in entryList) {
+				Assert.AreEqual(entry.PTOTorque, pto.GetTorqueLoss(entry.EngineSpeed));
+			}
+		}
+
+		[TestCase]
+		public void PTOIdleLosses_Interpolate()
+		{
+			var entryList = new List<PTOIdleLossMap.Entry>();
+			for (var i = 0; i < 2000; i += 200) {
+				entryList.Add(new PTOIdleLossMap.Entry {
+					EngineSpeed = i.RPMtoRad(),
+					PTOTorque = (Math.Sqrt(i) / 10).SI<NewtonMeter>()
+				});
+			}
+			var pto = new PTOIdleLossMap(entryList.ToArray());
+
+			for (var i = 1; i < entryList.Count; i++) {
+				var v1 = entryList[i - 1];
+				var v2 = entryList[i];
+
+				for (var f = v1.EngineSpeed; f < v2.EngineSpeed; f += 10.RPMtoRad()) {
+					AssertHelper.AreRelativeEqual(
+						VectoMath.Interpolate(v1.EngineSpeed, v2.EngineSpeed, v1.PTOTorque, v2.PTOTorque, f),
+						pto.GetTorqueLoss(f));
+				}
+			}
+		}
+	}
+}
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