public void CreateWithIntervalNode() { StructureNode node1 = CreateNode("node1", 1); StructureNode node2 = CreateNode("node2", 2); Interval i1 = new Interval(1, node1); Interval i2 = new Interval(2, node2); StructureNode node3 = CreateNode("node3", 3); i2.AddNode(node3); Interval i = new Interval(3, i1); i.AddNode(i2); Assert.AreEqual(2, i.Nodes.Count); }