django-helpdesk/helpdesk/tests/test_ticket_submission.py

import email
import uuid

from helpdesk.models import Queue, CustomField, FollowUp, Ticket, TicketCC
from django.test import TestCase
from django.core import mail
from django.core.exceptions import ObjectDoesNotExist
from django.forms import ValidationError
from django.test.client import Client
from django.core.urlresolvers import reverse

from helpdesk.management.commands.get_email import object_from_message, create_ticket_cc

try:  # python 3
    from urllib.parse import urlparse
except ImportError:  # python 2
    from urlparse import urlparse


class TicketBasicsTestCase(TestCase):
    fixtures = ['emailtemplate.json']

    def setUp(self):
        self.queue_public = Queue.objects.create(title='Queue 1', slug='q1', allow_public_submission=True, new_ticket_cc='new.public@example.com', updated_ticket_cc='update.public@example.com')
        self.queue_private = Queue.objects.create(title='Queue 2', slug='q2', allow_public_submission=False, new_ticket_cc='new.private@example.com', updated_ticket_cc='update.private@example.com')

        self.ticket_data = {
                'title': 'Test Ticket',
                'description': 'Some Test Ticket',
                }

        self.client = Client()

    def test_create_ticket_instance_from_payload(self):

        """
        Ensure that a <Ticket> instance is created whenever an email is sent to a public queue.
        """

        email_count = len(mail.outbox)
        ticket_data = dict(queue=self.queue_public, **self.ticket_data)
        ticket = Ticket.objects.create(**ticket_data)
        self.assertEqual(ticket.ticket_for_url, "q1-%s" % ticket.id)
        self.assertEqual(email_count, len(mail.outbox))

    def test_create_ticket_public(self):
        email_count = len(mail.outbox)

        response = self.client.get(reverse('helpdesk_home'))
        self.assertEqual(response.status_code, 200)

        post_data = {
                'title': 'Test ticket title',
                'queue': self.queue_public.id,
                'submitter_email': 'ticket1.submitter@example.com',
                'body': 'Test ticket body',
                'priority': 3,
                }

        response = self.client.post(reverse('helpdesk_home'), post_data, follow=True)
        last_redirect = response.redirect_chain[-1]
        last_redirect_url = last_redirect[0]
        last_redirect_status = last_redirect[1]

        # Ensure we landed on the "View" page.
        # Django 1.9 compatible way of testing this
        # https://docs.djangoproject.com/en/1.9/releases/1.9/#http-redirects-no-longer-forced-to-absolute-uris
        urlparts = urlparse(last_redirect_url)
        self.assertEqual(urlparts.path, reverse('helpdesk_public_view'))

        # Ensure submitter, new-queue + update-queue were all emailed.
        self.assertEqual(email_count+3, len(mail.outbox))

    def test_create_ticket_private(self):
        email_count = len(mail.outbox)
        post_data = {
                'title': 'Private ticket test',
                'queue': self.queue_private.id,
                'submitter_email': 'ticket2.submitter@example.com',
                'body': 'Test ticket body',
                'priority': 3,
                }

        response = self.client.post(reverse('helpdesk_home'), post_data)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(email_count, len(mail.outbox))
        self.assertContains(response, 'Select a valid choice.')

    def test_create_ticket_customfields(self):
        email_count = len(mail.outbox)
        queue_custom = Queue.objects.create(title='Queue 3', slug='q3', allow_public_submission=True, updated_ticket_cc='update.custom@example.com')
        custom_field_1 = CustomField.objects.create(name='textfield', label='Text Field', data_type='varchar', max_length=100, ordering=10, required=False, staff_only=False)
        post_data = {
                'queue': queue_custom.id,
                'title': 'Ticket with custom text field',
                'submitter_email': 'ticket3.submitter@example.com',
                'body': 'Test ticket body',
                'priority': 3,
                'custom_textfield': 'This is my custom text.',
                }

        response = self.client.post(reverse('helpdesk_home'), post_data, follow=True)

        custom_field_1.delete()
        last_redirect = response.redirect_chain[-1]
        last_redirect_url = last_redirect[0]
        last_redirect_status = last_redirect[1]
        
        # Ensure we landed on the "View" page.
        # Django 1.9 compatible way of testing this
        # https://docs.djangoproject.com/en/1.9/releases/1.9/#http-redirects-no-longer-forced-to-absolute-uris
        urlparts = urlparse(last_redirect_url)
        self.assertEqual(urlparts.path, reverse('helpdesk_public_view'))

        # Ensure only two e-mails were sent - submitter & updated.
        self.assertEqual(email_count+2, len(mail.outbox))

class EmailInteractionsTestCase(TestCase):
    fixtures = ['emailtemplate.json']

    def setUp(self):
        self.queue_public = Queue.objects.create(title='Mail Queue 1', 
                                                    slug='mq1', 
                                                    allow_public_submission=True, 
                                                    new_ticket_cc='new.public.with.notifications@example.com', 
                                                    updated_ticket_cc='update.public.with.notifications@example.com',
                                                    enable_notifications_on_email_events=True,
                                                )

        self.queue_public_with_notifications_disabled = Queue.objects.create(title='Mail Queue 2', 
                                                                            slug='mq2', 
                                                                            allow_public_submission=True, 
                                                                            new_ticket_cc='new.public.without.notifications@example.com', 
                                                                            updated_ticket_cc='update.public.without.notifications@example.com',
                                                                            enable_notifications_on_email_events=False,
                                                                            )

        self.ticket_data = {
                'title': 'Test Ticket',
                'description': 'Some Test Ticket',
                }

    def test_create_ticket_from_email_with_message_id(self):

        """
        Ensure that a <Ticket> instance is created whenever an email is sent to a public queue.
        Also, make sure that the RFC 2822 field "message-id" is stored on the <Ticket.submitter_email_id>
        field.
        """

        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
     
        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email) 
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)

        object_from_message(str(msg), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)

        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As we have created an Ticket from an email, we notify the sender (+1) 
        # and the new and update queues (+2)
        self.assertEqual(email_count + 1 + 2, len(mail.outbox))

        # Ensure that the submitter is notified
        self.assertIn(submitter_email,mail.outbox[0].to)

    def test_create_ticket_from_email_without_message_id(self):

        """
        Ensure that a <Ticket> instance is created whenever an email is sent to a public queue.
        Also, make sure that the RFC 2822 field "message-id" is stored on the <Ticket.submitter_email_id>
        field.
        """

        msg = email.message.Message()
        submitter_email = 'foo@bar.py'

        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email) 
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)

        object_from_message(str(msg), self.queue_public, quiet=True)

        ticket = Ticket.objects.get(title=self.ticket_data['title'], queue=self.queue_public, submitter_email=submitter_email)

        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As we have created an Ticket from an email, we notify the sender (+1) 
        # and the new and update queues (+2)
        self.assertEqual(email_count + 1 + 2, len(mail.outbox))

        # Ensure that the submitter is notified
        self.assertIn(submitter_email,mail.outbox[0].to)

    def test_create_ticket_from_email_with_carbon_copy(self):

        """ 
        Ensure that an instance of <TicketCC> is created for every valid element of the
        "rfc_2822_cc" field when creating a <Ticket> instance.
        """

        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Cc', ','.join(cc_list))
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        
        object_from_message(str(msg), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As we have created an Ticket from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 
        self.assertEqual(email_count + 1 + 2, len(mail.outbox))

        # Ensure that the submitter is notified
        self.assertIn(submitter_email,mail.outbox[0].to)

        
        for cc_email in cc_list:

            # Ensure that contacts on cc_list will be notified on the same email (index 0)
            self.assertIn(cc_email, mail.outbox[0].to)

            # Ensure that <TicketCC> exists
            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)

    def test_create_ticket_from_email_with_invalid_carbon_copy(self):

        """ 
        Ensure that no <TicketCC> instance is created if an invalid element of the
        "rfc_2822_cc" field is provided when creating a <Ticket> instance.
        """

        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['null@example', 'invalid@foobar']

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Cc', ','.join(cc_list))
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)

        object_from_message(str(msg), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As we have created an Ticket from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 
        self.assertEqual(email_count + 1 + 2, len(mail.outbox))

        # Ensure that the submitter is notified
        self.assertIn(submitter_email, mail.outbox[0].to)
        
        for cc_email in cc_list:

            # Ensure that contacts on cc_list will be notified on the same email (index 0)
            self.assertIn(cc_email, mail.outbox[0].to)

            # Ensure that <TicketCC> exists. Even if it's an invalid email.
            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)

    def test_create_followup_from_email_with_valid_message_id_with_no_initial_cc_list(self):

        """
        Ensure that if a message is received with an valid In-Reply-To ID, 
        the expected <TicketCC> instances are created even if the there were
        no <TicketCC>s so far.
        """

        ### Ticket and TicketCCs creation ###
        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        
        object_from_message(str(msg), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)

        # As we have created an Ticket from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 

        # Ensure that the submitter is notified
        self.assertIn(submitter_email,mail.outbox[0].to)

        # As we have created an Ticket from an email, we notify the sender (+1)
        # and the new and update queues (+2)
        expected_email_count = 1 + 2
        self.assertEqual(expected_email_count, len(mail.outbox))
        ### end of the Ticket and TicketCCs creation ###

        # Reply message
        reply = email.message.Message()

        reply_message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        reply.__setitem__('Message-ID', reply_message_id)
        reply.__setitem__('In-Reply-To', message_id)
        reply.__setitem__('Subject', self.ticket_data['title'])
        reply.__setitem__('From', submitter_email)
        reply.__setitem__('To', self.queue_public.email_address)
        reply.__setitem__('Cc', ','.join(cc_list))
        reply.__setitem__('Content-Type', 'text/plain;')
        reply.set_payload(self.ticket_data['description'])

        object_from_message(str(reply), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # Ensure that <TicketCC> is created
        for cc_email in cc_list:
            # Even after 2 messages with the same cc_list, <get> MUST return only 
            # one object 
            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)

        # As an update was made, we increase the expected_email_count with:
        # cc_list: +1
        # public_update_queue: +1
        expected_email_count += 1 + 1
        self.assertEqual(expected_email_count, len(mail.outbox))

        # As we have created a FollowUp from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 

        # Ensure that the submitter is notified
        self.assertIn(submitter_email, mail.outbox[expected_email_count - 1].to)

        # Ensure that contacts on cc_list will be notified on the same email (index 0)
        for cc_email in cc_list:
            self.assertIn(cc_email, mail.outbox[expected_email_count - 1].to)

    def test_create_followup_from_email_with_valid_message_id_with_original_cc_list_included(self):

        """
        Ensure that if a message is received with an valid In-Reply-To ID, 
        the expected <TicketCC> instances are created but if there's any 
        overlap with the previous Cc list, no duplicates are created.
        """

        ### Ticket and TicketCCs creation ###
        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Cc', ','.join(cc_list))
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        
        object_from_message(str(msg), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)

        # Ensure that <TicketCC> is created
        for cc_email in cc_list:
            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)
            self.assertTrue(ticket_cc.can_view, True)

        # As we have created a Ticket from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 

        # Ensure that the submitter is notified
        self.assertIn(submitter_email,mail.outbox[0].to)

        # As we have created an Ticket from an email, we notify the sender (+1)
        # and the new and update queues (+2)
        expected_email_count = 1 + 2
        self.assertEqual(expected_email_count, len(mail.outbox))
        ### end of the Ticket and TicketCCs creation ###

        # Reply message
        reply = email.message.Message()

        reply_message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        reply.__setitem__('Message-ID', reply_message_id)
        reply.__setitem__('In-Reply-To', message_id)
        reply.__setitem__('Subject', self.ticket_data['title'])
        reply.__setitem__('From', submitter_email)
        reply.__setitem__('To', self.queue_public.email_address)
        reply.__setitem__('Cc', ','.join(cc_list))
        reply.__setitem__('Content-Type', 'text/plain;')
        reply.set_payload(self.ticket_data['description'])
       
        object_from_message(str(reply), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As an update was made, we increase the expected_email_count with:
        # public_update_queue: +1
        expected_email_count += 1
        self.assertEqual(expected_email_count, len(mail.outbox))

        # As we have created a FollowUp from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 

        # Ensure that the submitter is notified
        self.assertIn(submitter_email, mail.outbox[expected_email_count - 1].to)

        # Ensure that contacts on cc_list will be notified on the same email (index 0)
        for cc_email in cc_list:
            self.assertIn(cc_email, mail.outbox[expected_email_count - 1].to)

            # Even after 2 messages with the same cc_list, 
            # <get> MUST return only one object 
            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)

    def test_create_followup_from_email_with_invalid_message_id(self):

        """
        Ensure that if a message is received with an invalid In-Reply-To ID and we
        can infer the original Ticket ID by the message's subject, the expected 
        <TicketCC> instances are created
        """
        
        ### Ticket and TicketCCs creation ###
        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Cc', ','.join(cc_list))
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        
        object_from_message(str(msg), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)

        # Ensure that <TicketCC> is created
        for cc_email in cc_list:
            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)
            self.assertTrue(ticket_cc.can_view, True)

        # As we have created an Ticket from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 
        expected_email_count = 1 + 2
        self.assertEqual(expected_email_count, len(mail.outbox))

        # Ensure that the submitter is notified
        self.assertIn(submitter_email,mail.outbox[0].to)

        # Ensure that <TicketCC> is created
        for cc_email in cc_list:

            # Ensure that contacts on cc_list will be notified on the same email (index 0)
            self.assertIn(cc_email, mail.outbox[0].to)

            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)

        ### end of the Ticket and TicketCCs creation ###

        # Reply message
        reply = email.message.Message()

        reply_message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        invalid_message_id = 'INVALID'
        reply_subject = 'Re: ' + self.ticket_data['title']

        reply.__setitem__('Message-ID', reply_message_id)
        reply.__setitem__('In-Reply-To', invalid_message_id)
        reply.__setitem__('Subject', reply_subject)
        reply.__setitem__('From', submitter_email)
        reply.__setitem__('To', self.queue_public.email_address)
        reply.__setitem__('Cc', ','.join(cc_list))
        reply.__setitem__('Content-Type', 'text/plain;')
        reply.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        
        object_from_message(str(reply), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)


        # Ensure that <TicketCC> is created
        for cc_email in cc_list:
            # Even after 2 messages with the same cc_list, <get> MUST return only 
            # one object 
            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)

        # As we have created an Ticket from an email, we notify the sender (+1),
        # the new and update queues (+2) and contacts on the cc_list (+1 as it's 
        # treated as a list)
        self.assertEqual(email_count + 1 + 2, len(mail.outbox))

    def test_create_ticket_from_email_to_a_notification_enabled_queue(self):

        """
            Ensure that when an email is sent to a Queue with notifications_enabled turned ON, 
        and a <Ticket> is created, all contacts n the TicketCC list are notified.
        """
        
        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Cc', ','.join(cc_list))
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        object_from_message(str(msg), self.queue_public, quiet=True)
        

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As we have created a Ticket from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 
        self.assertEqual(email_count + 1 + 2, len(mail.outbox))

        # Ensure that the submitter is notified
        self.assertIn(submitter_email, mail.outbox[0].to)

        # Ensure that <TicketCC> exist
        for cc_email in cc_list:

            # Ensure that contacts on cc_list will be notified on the same email (index 0)
            self.assertIn(cc_email, mail.outbox[0].to)

            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)


    def test_create_ticket_from_email_to_a_notification_disabled_queue(self):

        """
            Ensure that when an email is sent to a Queue with notifications_enabled turned OFF, only the 
        new_ticket_cc and updated_ticket_cc contacts (if they are set) are notified. No contact
        from the TicketCC list should be notified.
        """
        
        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Cc', ','.join(cc_list))
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        
        object_from_message(str(msg), self.queue_public_with_notifications_disabled, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq2-%s" % ticket.id)

        # As we have created an Ticket from an email, we notify the sender (+1),
        # the new and update queues (+2) and that's all
        self.assertEqual(email_count + 1 + 2, len(mail.outbox))

        # Ensure that <TicketCC> is created even if the Queue notifications are disabled 
        # so when staff members interact with the <Ticket>, they get notified
        for cc_email in cc_list:

            # Ensure that contacts on the cc_list are not notified
            self.assertNotIn(cc_email, mail.outbox[0].to)

            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)

    def test_create_followup_from_email_to_a_notification_enabled_queue(self):

        """
            Ensure that when an email is sent to a Queue with notifications_enabled turned ON, 
        and a <FollowUp> is created, all contacts n the TicketCC list are notified.
        """

        ### Ticket and TicketCCs creation ###
        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Cc', ','.join(cc_list))
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        
        object_from_message(str(msg), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As we have created an Ticket from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 
        expected_email_count = email_count + 1 + 2
        self.assertEqual(expected_email_count, len(mail.outbox))

        # Ensure that <TicketCC> is created
        for cc_email in cc_list:

            # Ensure that contacts on cc_list will be notified on the same email (index 0)
            self.assertIn(cc_email, mail.outbox[0].to)

            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)
        ### end of the Ticket and TicketCCs creation ###

        # Reply message
        reply = email.message.Message()

        reply_message_id = uuid.uuid4().hex
        submitter_email = 'bravo@example.net'

        reply.__setitem__('Message-ID', reply_message_id)
        reply.__setitem__('In-Reply-To', message_id)
        reply.__setitem__('Subject', self.ticket_data['title'])
        reply.__setitem__('From', submitter_email)
        reply.__setitem__('To', self.queue_public.email_address)
        reply.__setitem__('Content-Type', 'text/plain;')
        reply.set_payload(self.ticket_data['description'])

        object_from_message(str(reply), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As an update was made, we increase the expected_email_count with:
        # a new email to all TicketCC subscribers : +1
        # public_update_queue: +1
        expected_email_count += 1 + 1
        self.assertEqual(expected_email_count, len(mail.outbox))

        # Ensure that <TicketCC> exist
        for cc_email in cc_list:

            # Ensure that contacts on cc_list will be notified on the same email (index 0)
            self.assertIn(cc_email, mail.outbox[expected_email_count - 1].to)

            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)

    def test_create_followup_from_email_to_a_notification_diabled_queue(self):

        """
            Ensure that when an email is sent to a Queue with notifications_enabled turned ON, 
        and a <FollowUp> is created, all contacts n the TicketCC list are notified.
        """

        ### Ticket and TicketCCs creation ###
        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'
        cc_list = ['bravo@example.net', 'charlie@foobar.com']

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public_with_notifications_disabled.email_address)
        msg.__setitem__('Cc', ','.join(cc_list))
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        
        object_from_message(str(msg), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As we have created an Ticket from an email, we notify the sender
        # and contacts on the cc_list (+1 as it's treated as a list),
        # the new and update queues (+2) 
        expected_email_count = email_count + 1 + 2
        self.assertEqual(expected_email_count, len(mail.outbox))
        

        # Ensure that <TicketCC> is created
        for cc_email in cc_list:

            # Ensure that contacts on cc_list will be notified on the same email (index 0)
            self.assertIn(cc_email, mail.outbox[0].to)

            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)
        ### end of the Ticket and TicketCCs creation ###

        # Reply message
        reply = email.message.Message()

        reply_message_id = uuid.uuid4().hex
        submitter_email = 'bravo@example.net'

        reply.__setitem__('Message-ID', reply_message_id)
        reply.__setitem__('In-Reply-To', message_id)
        reply.__setitem__('Subject', self.ticket_data['title'])
        reply.__setitem__('From', submitter_email)
        reply.__setitem__('To', self.queue_public_with_notifications_disabled.email_address)
        reply.__setitem__('Content-Type', 'text/plain;')
        reply.set_payload(self.ticket_data['description'])

        object_from_message(str(reply), self.queue_public_with_notifications_disabled, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # As an update was made, we increase the expected_email_count with:
        # public_update_queue: +1
        expected_email_count += 1
        self.assertEqual(expected_email_count, len(mail.outbox))


    def test_create_followup_from_email_with_valid_message_id_with_original_cc_list_included(self):

        """
        Ensure that if a message is received with an valid In-Reply-To ID, 
        the expected <TicketCC> instances are created even if the there were
        no <TicketCC>s so far.
        """

        ### Ticket and TicketCCs creation ###
        msg = email.message.Message()

        message_id = uuid.uuid4().hex
        submitter_email = 'foo@bar.py'

        msg.__setitem__('Message-ID', message_id)
        msg.__setitem__('Subject', self.ticket_data['title'])
        msg.__setitem__('From', submitter_email)
        msg.__setitem__('To', self.queue_public.email_address)
        msg.__setitem__('Content-Type', 'text/plain;')
        msg.set_payload(self.ticket_data['description'])

        email_count = len(mail.outbox)
        
        object_from_message(str(msg), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        ### end of the Ticket and TicketCCs creation ###

        # Reply message
        reply = email.message.Message()

        reply_message_id = uuid.uuid4().hex
        submitter_email = 'bravo@example.net'
        cc_list = ['foo@bar.py', 'charlie@foobar.com']

        reply.__setitem__('Message-ID', reply_message_id)
        reply.__setitem__('In-Reply-To', message_id)
        reply.__setitem__('Subject', self.ticket_data['title'])
        reply.__setitem__('From', submitter_email)
        reply.__setitem__('To', self.queue_public.email_address)
        reply.__setitem__('Cc', ','.join(cc_list))
        reply.__setitem__('Content-Type', 'text/plain;')
        reply.set_payload(self.ticket_data['description'])

        object_from_message(str(reply), self.queue_public, quiet=True)

        followup = FollowUp.objects.get(message_id=message_id)
        ticket = Ticket.objects.get(id=followup.ticket.id)
        self.assertEqual(ticket.ticket_for_url, "mq1-%s" % ticket.id)

        # Ensure that <TicketCC> is created
        for cc_email in cc_list:
            # Even after 2 messages with the same cc_list, <get> MUST return only 
            # one object 
            ticket_cc = TicketCC.objects.get(ticket=ticket, email=cc_email)
            self.assertTrue(ticket_cc.ticket, ticket)
            self.assertTrue(ticket_cc.email, cc_email)

        # As we have created an Ticket from an email, we notify the sender (+1)
        # and the new and update queues (+2)
        expected_email_count = 1 + 2

        # As an update was made, we increase the expected_email_count with:
        # cc_list: +1
        # public_update_queue: +1
        expected_email_count += 1 + 1   
        self.assertEqual(expected_email_count, len(mail.outbox))