'read_some()
Read at least one byte or EOF; may block.'

def test_read_some_A(self):

    want = [('x' * 500), EOF_sigil]
    self.dataq.put(want)
    telnet = telnetlib.Telnet(HOST, self.port)
    self.dataq.join()
    data = telnet.read_all()
    self.assertTrue((len(data) >= 1))
