public void LoadAllHCP()
{
var tspLib = new TspLib95(RootDir);
tspLib.LoadAllHCP();
var items = tspLib.HCPItems();
Assert.AreEqual(Enumerable.Count(items), 9);
}
private static double TspCanonicalDistance(string problemName, int nrNodes)
{
var tspLib = new TspLib95(RootDir);
tspLib.LoadTSP(problemName);
var problem = tspLib.GetItemByName(problemName, ProblemType.TSP).Problem;
var nodes = Enumerable.Range(1, nrNodes);
var tour = new Tour(problemName, "", nodes.Count(), nodes);
return problem.TourDistance(tour);
}
public void LoadNone()
{
var tspLib = new TspLib95(RootDir);
Assert.IsFalse(tspLib.Items.Any());
Assert.IsFalse(tspLib.ATSPItems().Any());
Assert.IsFalse(tspLib.TSPItems().Any());
Assert.IsFalse(tspLib.SOPItems().Any());
Assert.IsFalse(tspLib.HCPItems().Any());
Assert.IsFalse(tspLib.CVRPItems().Any());
}
public void CtorGivenItemThatDoesNotHave2DNodesShouldThrowArgumentOutOfRangeException(string tspProblemName)
{
// arrange
var tspLib = new TspLib95(Helpers.LibPath);
tspLib.LoadTSP(tspProblemName);
var items = tspLib.TSPItems();
// assert
// ReSharper disable once ObjectCreationAsStatement
Assert.Throws<ArgumentOutOfRangeException>(() => new SymmetricTspItemInfoProvider(items.First()));
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="tspLibPath">The directory path to the TSPLIB95 library.</param>
/// <exception cref="ArgumentOutOfRangeException">Thrown if no TspLib95Items were loaded.</exception>
public SymmetricTspItemLoader(string tspLibPath)
{
try
{
var tspLib = new TspLib95(tspLibPath);
var items = tspLib.LoadAllTSP();
const int maxNodes = 100;
var nodeType = typeof(Node2D);
_tspLibItems = (from i in items
let nodes = i.Problem.NodeProvider.GetNodes()
where nodes.Count <= maxNodes
where nodes.All(n => n.GetType() == nodeType)
select i).ToList();
ProblemNames = _tspLibItems.Select(i => i.Problem.Name).ToList();
}
catch (Exception e)
{
throw new ArgumentOutOfRangeException($"No TspLib95Items were loaded for path: '{tspLibPath}'", e);
}
}
public void LoadByNameNullDir()
{
var tspLib = new TspLib95(RootDir);
tspLib.LoadTSP("");
}
public void LoadWrongTspDir()
{
var tspLib = new TspLib95(Directory.GetCurrentDirectory());
tspLib.LoadAll();
}
public void TspLibPathInvalidDirectory()
{
var tspLib = new TspLib95("broken");
}
public void TspLibPathEmpty()
{
var tspLib = new TspLib95("");
}
public void TspLibPathValid()
{
var tspLib = new TspLib95(RootDir);
Assert.IsNotNull(tspLib);
}
public void GetItemByInvalidName()
{
var tspLib = new TspLib95(RootDir);
tspLib.LoadAllTSP();
Assert.IsNull(tspLib.GetItemByName("bob", ProblemType.TSP));
Assert.IsNull(tspLib.GetItemByName("", ProblemType.TSP));
Assert.IsNull(tspLib.GetItemByName(" ", ProblemType.TSP));
}
