public function testRootNode()
{
Debug::debug('root-' . md5($_SERVER['REQUEST_TIME']));
$root = new Tree();
#$root->id = ran;
#$root->domain_id = 'test-root-node';
$root->domain_id = 'root-' . md5($_SERVER['REQUEST_TIME']);
$root->name = 'I am a Root-Node';
$root->makeRoot();
$root->save();
$this->assertSame($root->errors, [], 'Root node has errors');
}