public function testDelete()
{
$data = ['type' => 'ninja', 'color' => 'black', 'font' => 'sans', 'margin' => ['left' => '15px', 'right' => 'delete-me'], 'small' => ['font' => 'monospace', 'test' => '(a < b)'], 'objects' => ['first' => 1, 'second' => 2]];
$exp = $data;
$node = new Node($data);
// $node->del('color');
// unset ($exp['color']);
$node->del('margin.right');
unset($exp['margin']['right']);
$out = $node->getData();
// $this->assertEquals($out, $exp);
// echo json_encode($out, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
// echo json_encode($exp, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
}