public void Test1MoveImpossible()
{
// create the problem and make sure 0->1->2->3->4 is the solution.
var objective = new TSPTWObjective();
var problem = TSPTWHelper.CreateTSPTW(0, 0, 5, 10);
problem.Times[0][1] = 1;
problem.Times[0][3] = 2;
problem.Times[1][2] = 1;
problem.Times[2][3] = 1;
problem.Times[3][4] = 1;
problem.Times[4][0] = 1;
problem.Times[3][1] = 100;
problem.Windows[3] = new TimeWindow()
{
Min = 1,
Max = 2
};
problem.Windows[2] = new TimeWindow()
{
Min = 11,
Max = 12
};
var route = new Optimization.Tours.Tour(new int[] { 0, 3, 2, 1, 4 }, 0);
var localSearch = new Local2Opt();
var delta = 0.0f;
Assert.IsFalse(localSearch.Apply(problem, objective, route, out delta));
}
public void Test1MoveImpossible()
{
// create the problem and make sure 0->1->2->3->4 is the solution.
var objective = new TSPTWObjective();
var problem = TSPTWHelper.CreateDirectedTSPTW(0, 0, 5, 10, 1);
problem.Times.SetWeight(0, 1, 1);
problem.Times.SetWeight(0, 3, 2);
problem.Times.SetWeight(1, 2, 1);
problem.Times.SetWeight(2, 3, 1);
problem.Times.SetWeight(3, 4, 1);
problem.Times.SetWeight(4, 0, 1);
problem.Times.SetWeight(3, 1, 100);
problem.Windows[3] = new TimeWindow()
{
Min = 1,
Max = 2
};
problem.Windows[2] = new TimeWindow()
{
Min = 11,
Max = 12
};
var route = new Optimization.Tours.Tour(new int[] { 0, 13, 9, 4, 16 }, 0);
var localSearch = new Local2Opt();
var delta = 0.0f;
Assert.IsFalse(localSearch.Apply(problem, objective, route, out delta));
}
public void Test1MovePossible()
{
// create the problem and make sure 0->1->2->3->4 is the solution.
var objective = new TSPTWObjective();
var problem = TSPTWHelper.CreateTSPTW(0, 0, 5, 10);
problem.Times[0][1] = 1;
problem.Times[1][2] = 1;
problem.Times[2][3] = 1;
problem.Times[3][4] = 1;
problem.Times[4][0] = 1;
problem.Times[3][1] = 100;
var route = new Optimization.Tours.Tour(new int[] { 0, 3, 2, 1, 4 }, 0);
var localSearch = new Local2Opt();
var delta = 0.0f;
Assert.IsTrue(localSearch.Apply(problem, objective, route, out delta));
// test result.
Assert.AreEqual(36, delta);
Assert.AreEqual(new int[] { 0, 1, 2, 3, 4 }, route.ToArray());
}
public void Test1MovePossible()
{
// create the problem and make sure 0->1->2->3->4 is the solution.
var objective = new TSPTWObjective();
var problem = TSPTWHelper.CreateDirectedTSPTW(0, 0, 5, 10, 1);
problem.Times.SetWeight(0, 1, 1);
problem.Times.SetWeight(1, 2, 1);
problem.Times.SetWeight(2, 3, 1);
problem.Times.SetWeight(3, 4, 1);
problem.Times.SetWeight(4, 0, 1);
problem.Times.SetWeight(3, 1, 100);
var route = new Optimization.Tours.Tour(new int[] { 0, 13, 9, 5, 17 }, 0);
var localSearch = new Local2Opt();
var delta = 0.0f;
Assert.IsTrue(localSearch.Apply(problem, objective, route, out delta));
// test result.
Assert.AreEqual(42, delta);
Assert.AreEqual(new int[] { 0, 4, 8, 12, 17 }, route.ToArray());
}
