public void FullBinaryTree()
{
BinaryTreeNode <int> root = new BinaryTreeNode <int>(23);
root.Left = new BinaryTreeNode <int>(65);
root.Right = new BinaryTreeNode <int>(12);
root.Left.Left = new BinaryTreeNode <int>(98);
root.Left.Right = new BinaryTreeNode <int>(45);
root.Right.Left = new BinaryTreeNode <int>(112);
root.Right.Right = new BinaryTreeNode <int>(111);
Assert.Equal("23,12,65,98,45,112,111", PrintBinaryTreeZigZag.Print(root));
}
public void NormalBinaryTree()
{
BinaryTreeNode <int> root = new BinaryTreeNode <int>(23);
root.Left = new BinaryTreeNode <int>(65);
root.Right = new BinaryTreeNode <int>(12);
root.Left.Left = new BinaryTreeNode <int>(98);
root.Right.Left = new BinaryTreeNode <int>(112);
root.Right.Right = new BinaryTreeNode <int>(111);
root.Right.Right.Right = new BinaryTreeNode <int>(236);
root.Right.Right.Left = new BinaryTreeNode <int>(239);
Assert.Equal("23,12,65,98,112,111,236,239", PrintBinaryTreeZigZag.Print(root));
}
public void InvalidInput()
{
Assert.Throws <ArgumentNullException>(() => PrintBinaryTreeZigZag.Print(null));
}
public void BinaryTreeThatContainsOnlyOneNode()
{
BinaryTreeNode <int> root = new BinaryTreeNode <int>(23);
Assert.Equal("23", PrintBinaryTreeZigZag.Print(root));
}
