/**
  * Method to test listFolderTree().
  *
  * @return void
  *
  * @covers Windwalker\Filesystem\Folder::listFolderTree
  */
 public function testListFolderTree()
 {
     $tree = Folder::listFolderTree(static::$dest);
     $this->assertEquals($tree[0]['relative'], 'folder1');
     $this->assertEquals($tree[1]['parent'], 1);
     $this->assertEquals($tree[1]['relative'], 'folder1' . DIRECTORY_SEPARATOR . 'level2');
     $this->assertEquals($tree[2]['fullname'], Path::clean(static::$dest . '/folder2'));
 }