public void Clear() { mtg tree = new mtg(); Assert.AreEqual(1, tree.NbVertices()); int vertex1 = tree.AddComponent(tree.root); Assert.AreEqual(2, tree.NbVertices()); tree.Clear(); Assert.AreEqual(1, tree.NbVertices()); int vertex2 = tree.AddComponent(tree.root); Assert.AreEqual(vertex1, vertex2); }