def test_outbox_login():
o = Outbox('username', 'password', 'server', 1234)
with mock.patch('smtplib.SMTP') as SMTP:
smtp = SMTP.return_value
o._login()
print(smtp.mock_calls)
smtp.set_debuglevel.assert_any_call(False)
smtp.starttls.assert_any_call()
smtp.login.assert_any_call('username', 'password')
