AIMA.Core.Search.Framework.Node.isRootNode C# (CSharp) Method

        public bool isRootNode()
        {
            return parent == null;
        }

 public void testRootNode()
 {
     Node node1 = new Node("state1");
     Assert.IsTrue(node1.isRootNode());
     Node node2 = new Node("state2", node1, null, 1.0);
     Assert.IsTrue(node1.isRootNode());
     Assert.IsFalse(node2.isRootNode());
     Assert.AreEqual(node1, node2.getParent());
 }