'NLST with no argument returns the directory listing for the current
working directory.'

def test_NLSTEmpty(self):

    d = self._anonymousLogin()
    self.dirPath.child('test.txt').touch()
    self.dirPath.child('foo').createDirectory()
    self._download('NLST    ', chainDeferred=d)
    def checkDownload(download):
        filenames = download[:(-2)].split('\r\n')
        filenames.sort()
        self.assertEqual(['foo', 'test.txt'], filenames)
    return d.addCallback(checkDownload)
