public function visitDirectoryWritesDirectoryNameToStream()
{
$output = vfsStream::newFile('foo.txt')->at(vfsStream::setup());
$printVisitor = new vfsStreamPrintVisitor(fopen('vfs://root/foo.txt', 'wb'));
$this->assertSame($printVisitor, $printVisitor->visitDirectory(vfsStream::newDirectory('baz')));
$this->assertEquals("- baz\n", $output->getContent());
}