public void EdgeDescriptor_GetInvertedVertex_ReturnsOppositeVertex()
{
int vertex1 = 10;
int vertex2 = 20;
string edge = "edge";
EdgeDescriptor <int, string> edgeDescriptor = new EdgeDescriptor <int, string>(vertex1, vertex2, edge);
Assert.AreEqual(vertex2, edgeDescriptor.GetInvertedVertex(vertex1));
Assert.AreEqual(vertex1, edgeDescriptor.GetInvertedVertex(vertex2));
}
public void EdgeDescriptor_GetInvertedVertex_RaisesExceptionForUnknownVertex()
{
int vertex1 = 10;
int vertex2 = 20;
string edge = "edge";
EdgeDescriptor <int, string> edgeDescriptor = new EdgeDescriptor <int, string>(vertex1, vertex2, edge);
edgeDescriptor.GetInvertedVertex(0);
}
public void EdgeDescriptor_GetInvertedVertex_RaisesExceptionForUnknownVertex()
{
int vertex1 = 10;
int vertex2 = 20;
string edge = "edge";
EdgeDescriptor <int, string> edgeDescriptor = new EdgeDescriptor <int, string>(vertex1, vertex2, edge);
Assert.Throws <InvalidOperationException>(() => edgeDescriptor.GetInvertedVertex(0));
}