public void TestcountOfNodes()
{
// Testcase 2
int n_2 = 7, q_2 = 3;
String s_2 = "abaacab";
GeneralTreeNode <int> root_2 = new GeneralTreeNode <int>(1);
root_2.ChildNodes.Add(new GeneralTreeNode <int>(2));
root_2.ChildNodes.Add(new GeneralTreeNode <int>(3));
root_2.ChildNodes.Add(new GeneralTreeNode <int>(7));
root_2.ChildNodes[0].ChildNodes.Add(new GeneralTreeNode <int>(4));
root_2.ChildNodes[0].ChildNodes.Add(new GeneralTreeNode <int>(5));
root_2.ChildNodes[1].ChildNodes.Add(new GeneralTreeNode <int>(6));
var queries_2 = new List <Query>();
queries_2.Add(new Query(1, 'a'));
queries_2.Add(new Query(2, 'b'));
queries_2.Add(new Query(3, 'a'));
int[] output_2 = TreesAndGraphs.CountOfNodes(root_2, queries_2, s_2);
int[] expected_2 = { 4, 1, 2 };
Assert.AreEqual(expected_2, output_2);
//Testcase 1
int n_1 = 3, q_1 = 1;
String s_1 = "aba";
GeneralTreeNode <int> root_1 = new GeneralTreeNode <int>(1);
root_1.ChildNodes.Add(new GeneralTreeNode <int>(2));
root_1.ChildNodes.Add(new GeneralTreeNode <int>(3));
var queries_1 = new List <Query>();
queries_1.Add(new Query(1, 'a'));
int[] output_1 = TreesAndGraphs.CountOfNodes(root_1, queries_1, s_1);
int[] expected_1 = { 2 };
Assert.AreEqual(expected_1, output_1);
}