public void NodeNavigationTests() { string tsltnPath = TestFiles.CreateTsltnFile(TestContext); var doc = Document.Load(tsltnPath); INode?node = doc.FirstNode; for (int i = 0; i < 10; i++) { if (node is null) { break; } node = node.GetDescendant(); } for (int i = 0; i < 20; i++) { if (node is null) { break; } node = node.GetAncestor(); } }