public void YouTubeExampleConnectivityTest()
{
Graph graph = new UnidirectionalGraph();
GraphTestHelpers.CommonInitialize(graph);
Connectivity connectivity = new Connectivity(graph);
bool isConnected = connectivity.IsConnected("a", "z");
Assert.IsTrue(isConnected, "A should be connected to Z");
isConnected = connectivity.IsConnected(graph.GetVertex("z"), graph.GetVertex("a"));
Assert.IsFalse(isConnected, "Z should not be connected to A");
}
public void GetVertexTest()
{
Graph graph = new UnidirectionalGraph();
Assert.IsTrue(graph.Directionality == Directionality.Unidirectional);
GraphTestHelpers.CommonInitialize(graph);
Assert.IsTrue(graph.NumVertices == 6);
Vertex v = graph.GetVertex("a");
Assert.IsNotNull(v);
}
public void GetVertexIndexTest2()
{
Graph graph = new UnidirectionalGraph();
Assert.IsTrue(graph.Directionality == Directionality.Unidirectional);
GraphTestHelpers.CommonInitialize(graph);
Vertex v = graph.GetVertex("b");
Assert.IsNotNull(v);
int index = graph.GetVertexIndex(v);
Assert.IsTrue(index >= 0);
}
public void GetAdjacentVerticesNoConnectionsTest()
{
Graph graph = new UnidirectionalGraph();
Assert.IsTrue(graph.Directionality == Directionality.Unidirectional);
GraphTestHelpers.CommonInitialize(graph);
Vertex v = graph.GetVertex("z");
Assert.IsNotNull(v);
List <Vertex> adjacentVertices = graph.GetAdjacentVertices(v);
Assert.IsNotNull(adjacentVertices);
Assert.IsFalse(adjacentVertices.Any());
}
public void GetEdgesTest()
{
Graph graph = new UnidirectionalGraph();
Assert.IsTrue(graph.Directionality == Directionality.Unidirectional);
GraphTestHelpers.CommonInitialize(graph);
Vertex v = graph.GetVertex("a");
Assert.IsNotNull(v);
IEnumerable <WeightedEdge <int> > edges = graph.GetEdges(v);
Assert.IsNotNull(edges);
Assert.IsTrue(edges.Any());
}
public void GetAdjacentVerticesTest()
{
Graph graph = new UnidirectionalGraph();
Assert.IsTrue(graph.Directionality == Directionality.Unidirectional);
GraphTestHelpers.CommonInitialize(graph);
Vertex v = graph.GetVertex("a");
Assert.IsNotNull(v);
List <Vertex> adjacentVertices = graph.GetAdjacentVertices(v);
Assert.IsNotNull(adjacentVertices);
Assert.IsTrue(adjacentVertices.Any());
// Vertex B and C should be the only vertices that are adjacent to A
Assert.IsTrue(adjacentVertices.Count == 2);
Assert.IsTrue(adjacentVertices[0].Name == "b");
Assert.IsTrue(adjacentVertices[1].Name == "c");
}