public void ZeroWeightsTest()
{
// creates network nodes
const int num = 10;
var network = new Network();
for (var i = 0u; i < num; i++)
{
network.AddVertex(i);
}
// creates edges (full with 0 weight)
for (var i = 0u; i < num; i++)
{
for (var j = i + 1; j < num; j++)
{
network.AddEdge(new Connection(i, j, 0));
}
}
Console.WriteLine(network);
// creates and updates community algorithm
var commAlgorithm = new CommunityAlgorithm(network);
commAlgorithm.Update();
commAlgorithm.DisplayNodesCommunities();
commAlgorithm.DisplayCommunities();
for (var i = 0u; i < num; i++)
{
Assert.AreEqual(i, commAlgorithm.NodesCommunities[i], $"Node {i} should be in community {i}.");
}
Assert.AreEqual(num, commAlgorithm.GetNumberCommunities(), $"Num. communities should be {num}.");
Assert.AreEqual(0, commAlgorithm.GetModularity(), double.Epsilon, "Community modularity should be 0.");
}
public void NoConnectionsTest()
{
// creates network nodes
const int num = 10;
var network = new Network();
for (var i = 0u; i < num; i++)
{
network.AddVertex(i);
}
Console.WriteLine(network);
// creates and updates community algorithm
var commAlgorithm = new CommunityAlgorithm(network);
commAlgorithm.Update();
commAlgorithm.DisplayNodesCommunities();
commAlgorithm.DisplayCommunities();
Assert.AreEqual(0, network.EdgeCount, "Network should not contain edges.");
for (var i = 0u; i < num; i++)
{
Assert.AreEqual(i, commAlgorithm.NodesCommunities[i], $"Node {i} should be in community {i}.");
}
Assert.AreEqual(num, commAlgorithm.GetNumberCommunities(), $"Num. communities should be {num}.");
Assert.AreEqual(0, commAlgorithm.GetModularity(), double.Epsilon, "Community modularity should be 0.");
}
private static void Update(CommunityAlgorithm communityAlg, CommunityTracker tracker)
{
communityAlg.Update();
communityAlg.DisplayNodesCommunities();
Console.WriteLine("Modularity: {0}", communityAlg.GetModularity());
tracker.Update();
}