public void GetAllVerticesTest()
{
MarkovChain <int> chains = new MarkovChain <int>(4);
chains.AddEdge(0, 4, 0.2);
chains.AddEdge(5, 6, 0.7);
chains.AddEdge(7, 9, 0.1);
CollectionAssert.AreEquivalent(new List <int> {
0, 4, 5, 6, 7, 9
}, chains.GetAllVertices());
}