#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2013 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System;
using System.Collections.Generic;
using System.Linq;
using HeuristicLab.Analysis.AlgorithmBehavior.Analyzers;
using Mehroz;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace AlgorithmBehaviorUnitTests {
  [TestClass]
  public class BigVolumeTest {
    [TestMethod]
    public void TestSimplexVolumeCalculation() {
      List<double[]> simplex = new List<double[]>();
      simplex.Add(new[] { 12.0, 4.5, 5.6 });
      simplex.Add(new[] { 1.0, 10.5, 5.6 });
      simplex.Add(new[] { 3.0, 1.5, 7.7 });
      simplex.Add(new[] { 1.5, 6.5, 3.9 });

      double volume = ConvexHullMeasures.CalculateSimplexVolume(simplex);
      double volumeBig = ConvexHullMeasures.CalculateSimplexVolumeBig(simplex).ToDouble();
      Assert.AreEqual(Math.Round(volume, 0), Math.Round(volumeBig, 0));
    }

    [TestMethod]
    public void TestVolumeCalculation() {
      int nrOfSamples = 51;
      int dimension = 4;

      var inputs = ConvexHullTest.CreateRandomData(nrOfSamples, dimension).ToList();

      double volume = ConvexHullMeasures.CalculateVolume(inputs);
      Fraction volumeBig = ConvexHullMeasures.CalculateVolumeBig(inputs);
      double vb = volumeBig.ToDouble();
      Assert.AreEqual(Math.Round(volume), Math.Round(vb, 0));
    }
  }
}