public void Test4()
{
var graph = new Graph();
var algo = new SmallestFirst();
graph.Vertices.Add(new Vertex(0));
graph.Vertices.Add(new Vertex(1));
graph.Vertices.Add(new Vertex(2));
Assert.Equal(graph.Vertices[0].Index, algo.GetMinimalDegreeVertex(graph.Vertices).Index);
graph.Vertices[0].Neighbors.Add(graph.Vertices[1]);
graph.Vertices[1].Neighbors.Add(graph.Vertices[2]);
Assert.Equal(graph.Vertices[2].Index, algo.GetMinimalDegreeVertex(graph.Vertices).Index);
graph.Vertices[2].Neighbors.Add(graph.Vertices[0]);
Assert.Equal(graph.Vertices[0].Index, algo.GetMinimalDegreeVertex(graph.Vertices).Index);
}
