public function visitRecursiveDirectoryStructure()
{
$root = vfsStream::setup('root', null, array('test' => array('foo' => array('test.txt' => 'hello'), 'baz.txt' => 'world'), 'foo.txt' => ''));
$structureVisitor = new vfsStreamStructureVisitor();
$this->assertEquals(array('root' => array('test' => array('foo' => array('test.txt' => 'hello'), 'baz.txt' => 'world'), 'foo.txt' => '')), $structureVisitor->visitDirectory($root)->getStructure());
}