def test_remove_bcc_from_header(self):
"""
Test if Bcc is removed from message header before send it
"""
my_sender = 'Me <*****@*****.**>'
to = 'Leo Iannacone <*****@*****.**>'
Cc = 'Leo2 Iannacone <*****@*****.**>, Leo3 Iannacone <*****@*****.**>'
Bcc = ['Leo{0} Nnc <leo{0}@tests.com>'.format(i) for i in range(4, 30)]
Bcc = ', '.join(Bcc)
payload = 'This is the payload of test_remove_bcc_from_header'
m = MIMEText(payload)
m['To'] = to
m['Cc'] = Cc
m['Bcc'] = Bcc
m['From'] = my_sender
new_message = Gmail._remove_bcc_from_header(m)
# message must be a correct email (parsable)
new_message = email.message_from_string(new_message)
self.assertIsInstance(new_message, Message)
# must not have 'Bcc'
self.assertFalse('Bcc' in new_message)
# and must have the same payload
self.assertEqual(payload, new_message.get_payload())
