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