def test_email_thread(self, mock_send_mass_mail):
# create a message
message = Message.objects.create(
user=self.users['Cersei'],
subject='The High Sparrow',
body='He is a little self-righteous, is he not?',
parent=None)
# email the thread (which obviously only consists of one message)
all_user_ids = list(
map(lambda k: self.users[k].pk, ['Kevan', 'Jaime', 'Tywin']))
Message.email_thread(message, all_user_ids)
# ensure send_mass_mail was called with a tuple of 3 tuples as its first argument
emails = get_user_model().objects.filter(
pk__in=all_user_ids).values_list('email', flat=True)
l = [(ANY, ANY, None, [email]) for email in emails]
mock_send_mass_mail.assert_called_once_with(tuple(l),
fail_silently=True)
