public void IsSymmetricRecursive_RootTree_ShouldReturnTrue()
{
TreeNode tree = new TreeNode(5);
var result = IsSymmetricImplementation.IsSymmetricRecursive(tree);
Assert.True(result);
}
public void IsSymmetricRecursive_FromLeetCode_ShouldReturnFalse()
{
var tree = TreeNode.CreateTree(new int?[] { 1, 2, 2, null, 3, null, 3 });
var result = IsSymmetricImplementation.IsSymmetricRecursive(tree);
Assert.False(result);
}