public void UndirectedSparseGraph()
{
TestCase testCase = new TestCase();
testCase.AddVertex("n1")
.AddVertex("n2")
.AddVertex("n3")
.AddVertex("n4")
.AddVertex("n5")
.AddVertex("n6");
testCase.AddUndirectedEdge("n1", "n2", 10)
.AddUndirectedEdge("n2", "n3", 8)
.AddUndirectedEdge("n3", "n4", 11)
.AddUndirectedEdge("n4", "n5", 6)
.AddUndirectedEdge("n5", "n6", 9)
.AddUndirectedEdge("n1", "n6", 3)
.AddUndirectedEdge("n2", "n6", 5)
.AddUndirectedEdge("n3", "n6", 18)
.AddUndirectedEdge("n3", "n5", 21);
var tcp = new TSP<String, EquatableEdge<String>, BidirectionalGraph<String, EquatableEdge<String>>>(testCase.Graph, testCase.GetFuncWeights());
tcp.Compute();
Assert.AreEqual(tcp.BestCost, 47);
Assert.IsFalse(tcp.ResultPath.IsDirectedAcyclicGraph());
}
public void DirectedSparseGraphWithoutPath()
{
TestCase testCase = new TestCase();
testCase.AddVertex("n1")
.AddVertex("n2")
.AddVertex("n3")
.AddVertex("n4")
.AddVertex("n5")
.AddVertex("n6");
testCase.AddDirectedEdge("n1", "n2", 10)
.AddDirectedEdge("n2", "n3", 8)
.AddDirectedEdge("n3", "n4", 11)
.AddDirectedEdge("n4", "n5", 6)
.AddDirectedEdge("n5", "n6", 9)
.AddDirectedEdge("n1", "n6", 3)
.AddDirectedEdge("n2", "n6", 5)
.AddDirectedEdge("n3", "n6", 18)
.AddDirectedEdge("n3", "n5", 21);
var tcp = new TSP<String, EquatableEdge<String>, BidirectionalGraph<String, EquatableEdge<String>>>(testCase.Graph, testCase.GetFuncWeights());
tcp.Compute();
Assert.AreEqual(tcp.BestCost, Double.PositiveInfinity);
Assert.IsTrue(tcp.ResultPath == null);
}
public static TestCase completeGraphTestCase(int vertices, int maxWeight)
{
var random = new Random();
TestCase testCase = new TestCase();
for (int i = 0; i < vertices; ++i)
{
testCase.AddVertex("n" + i);
}
foreach (var v1 in testCase.Graph.Vertices)
{
foreach (var v2 in testCase.Graph.Vertices)
{
testCase.AddDirectedEdge(v1, v2, random.Next(maxWeight));
}
}
return testCase;
}