public void TestGetVisibleNodesFromLeft()
{
TreeNode <int> root_1 = new TreeNode <int>(8);
root_1.LeftNode = new TreeNode <int>(3);
root_1.RightNode = new TreeNode <int>(10);
root_1.LeftNode.LeftNode = new TreeNode <int>(1);
root_1.LeftNode.RightNode = new TreeNode <int>(6);
root_1.RightNode.RightNode = new TreeNode <int>(14);
root_1.LeftNode.RightNode.LeftNode = new TreeNode <int>(4);
root_1.LeftNode.RightNode.RightNode = new TreeNode <int>(7);
root_1.RightNode.RightNode.LeftNode = new TreeNode <int>(13);
int expected_1 = 4;
int output_1 = TreesAndGraphs.GetVisibleNodesFromLeft(root_1);
Assert.AreEqual(expected_1, output_1);
TreeNode <int> root_2 = new TreeNode <int>(10);
root_2.LeftNode = new TreeNode <int>(8);
root_2.RightNode = new TreeNode <int>(15);
root_2.LeftNode.LeftNode = new TreeNode <int>(4);
root_2.LeftNode.LeftNode.RightNode = new TreeNode <int>(5);
root_2.LeftNode.LeftNode.RightNode.RightNode = new TreeNode <int>(6);
root_2.RightNode.LeftNode = new TreeNode <int>(14);
root_2.RightNode.RightNode = new TreeNode <int>(16);
int expected_2 = 5;
int output_2 = TreesAndGraphs.GetVisibleNodesFromLeft(root_2);
Assert.AreEqual(expected_2, output_2);
}
