public void GetRateTest()
{
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);
Assert.That(0.2, Is.EqualTo(chains.GetRate(0, 4)));
Assert.That(0.1, Is.EqualTo(chains.GetRate(7, 9)));
Assert.That(0, Is.EqualTo(chains.GetRate(10, 11)));
}