public void RemoveVertex()
{
mtg tree = new mtg();
int root = tree.root;
// Scale 1
int root1 = tree.AddComponent(root);
int vertex1 = tree.AddChild(root1);
int vertex2 = tree.AddChild(root1);
int vertex3 = tree.AddChild(root1);
int vertex4 = tree.AddChild(vertex1);
int vertex5 = tree.AddChild(vertex1);
int numberVertices = tree.NbVertices();
tree.RemoveVertex(vertex5);
tree.RemoveVertex(vertex1, true);
Assert.AreEqual(numberVertices - 2, tree.NbVertices());
}