c3lf-system-3/core/mail/tests/v2/test_mails.py

import inspect
from unittest import mock

from django.test import TestCase, Client

from inventory.models import Event
from mail.models import Email
from mail.protocol import LMTPHandler
from tickets.models import IssueThread

client = Client()


def make_mocked_coro(return_value=mock.sentinel, raise_exception=mock.sentinel):
    async def mock_coro(*args, **kwargs):
        if raise_exception is not mock.sentinel:
            raise raise_exception
        if not inspect.isawaitable(return_value):
            return return_value
        await return_value

    return mock.Mock(wraps=mock_coro)


class EmailsApiTest(TestCase):

    def test_mails(self):
        Event.objects.get_or_create(
            name="Test event",
            slug="test-event",
        )
        Email.objects.create(
            subject='test',
            body='test',
            sender='test',
            recipient='test',
        )
        response = client.get('/api/2/mails/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(len(response.json()), 1)
        self.assertEqual(response.json()[0]['subject'], 'test')
        self.assertEqual(response.json()[0]['body'], 'test')
        self.assertEqual(response.json()[0]['sender'], 'test')
        self.assertEqual(response.json()[0]['recipient'], 'test')

    def test_mails_empty(self):
        response = client.get('/api/2/mails/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json(), [])


class LMTPHandlerTestCase(TestCase):  # TODO replace with less hacky test

    def test_handle_client(self):
        from aiosmtpd.smtp import Envelope
        from asgiref.sync import async_to_sync
        import aiosmtplib
        aiosmtplib.send = make_mocked_coro()
        handler = LMTPHandler()
        server = mock.Mock()
        session = mock.Mock()
        envelope = Envelope()
        envelope.mail_from = 'test1@test'
        envelope.rcpt_tos = ['test2@test']
        envelope.content = b'Subject: test\nFrom: test3@test\nTo: test4@test\nMessage-ID: <1@test>\n\ntest'
        result = async_to_sync(handler.handle_DATA)(server, session, envelope)
        self.assertEqual(result, '250 Message accepted for delivery')
        self.assertEqual(len(Email.objects.all()), 2)
        self.assertEqual(len(IssueThread.objects.all()), 1)
        aiosmtplib.send.assert_called_once()
        self.assertEqual(Email.objects.all()[0].subject, 'test')
        self.assertEqual(Email.objects.all()[0].sender, 'test1@test')
        self.assertEqual(Email.objects.all()[0].recipient, 'test2@test')
        self.assertEqual(Email.objects.all()[0].body, 'test')
        self.assertEqual(Email.objects.all()[0].issue_thread, IssueThread.objects.all()[0])
        self.assertEqual(Email.objects.all()[0].reference, '<1@test>')
        self.assertEqual(Email.objects.all()[0].in_reply_to, None)
        self.assertEqual(Email.objects.all()[1].subject, 'Message received')
        self.assertEqual(Email.objects.all()[1].sender, 'test2@test')
        self.assertEqual(Email.objects.all()[1].recipient, 'test1@test')
        self.assertEqual(Email.objects.all()[1].body, 'Thank you for your message.')
        self.assertEqual(Email.objects.all()[1].issue_thread, IssueThread.objects.all()[0])
        self.assertTrue(Email.objects.all()[1].reference.startswith("<"))
        self.assertTrue(Email.objects.all()[1].reference.endswith("@localhost>"))
        self.assertEqual(Email.objects.all()[1].in_reply_to, "<1@test>")
        self.assertEqual(IssueThread.objects.all()[0].name, 'test')
        self.assertEqual(IssueThread.objects.all()[0].state, 'new')
        self.assertEqual(IssueThread.objects.all()[0].assigned_to, None)

    def test_handle_client_reply(self):
        issue_thread = IssueThread.objects.create(
            name="test",
        )
        mail1 = Email.objects.create(
            subject='test subject',
            body='test',
            sender='test1@test',
            recipient='test2@test',
            issue_thread=issue_thread,
        )
        mail1_reply = Email.objects.create(
            subject='Message received',
            body='Thank you for your message.',
            sender='test2@test',
            recipient='test1@test',
            in_reply_to=mail1.reference,
            issue_thread=issue_thread,
        )
        from aiosmtpd.smtp import Envelope
        from asgiref.sync import async_to_sync
        import aiosmtplib
        aiosmtplib.send = make_mocked_coro()
        handler = LMTPHandler()
        server = mock.Mock()
        session = mock.Mock()
        envelope = Envelope()
        envelope.mail_from = 'test1@test'
        envelope.rcpt_tos = ['test2@test']
        # envelope.content = b'Subject: Re: test\nFrom: test3@test\nTo: test4@test\nMessage-ID: 3@test\nIn-Reply-To: 2@localhost\n\ntest'
        envelope.content = (f'Subject: Re: test\nFrom: test3@test\nTo: test4@test\nMessage-ID: <3@test>\n'
                            f'In-Reply-To: {mail1_reply.reference}'.encode('utf-8') + b'\n\ntest')
        result = async_to_sync(handler.handle_DATA)(server, session, envelope)
        self.assertEqual(result, '250 Message accepted for delivery')
        self.assertEqual(len(Email.objects.all()), 4)
        self.assertEqual(len(IssueThread.objects.all()), 1)
        aiosmtplib.send.assert_called_once()
        self.assertEqual(Email.objects.all()[2].subject, 'Re: test')
        self.assertEqual(Email.objects.all()[2].sender, 'test1@test')
        self.assertEqual(Email.objects.all()[2].recipient, 'test2@test')
        self.assertEqual(Email.objects.all()[2].body, 'test')
        self.assertEqual(Email.objects.all()[2].issue_thread, issue_thread)
        self.assertEqual(Email.objects.all()[2].reference, '<3@test>')
        self.assertEqual(Email.objects.all()[2].in_reply_to, mail1_reply.reference)
        self.assertEqual(Email.objects.all()[3].subject, 'Message received')
        self.assertEqual(Email.objects.all()[3].sender, 'test2@test')
        self.assertEqual(Email.objects.all()[3].recipient, 'test1@test')
        self.assertEqual(Email.objects.all()[3].body, 'Thank you for your message.')
        self.assertEqual(Email.objects.all()[3].issue_thread, issue_thread)
        self.assertTrue(Email.objects.all()[3].reference.startswith("<"))
        self.assertTrue(Email.objects.all()[3].reference.endswith("@localhost>"))
        self.assertEqual(Email.objects.all()[3].in_reply_to, "<3@test>")
        self.assertEqual(IssueThread.objects.all()[0].name, 'test')
        self.assertEqual(IssueThread.objects.all()[0].state, 'new')
        self.assertEqual(IssueThread.objects.all()[0].assigned_to, None)

# class AsyncLMTPTestCase(TestCase):
#
#    def setUp(self):
#        server = mock.Mock()
#        self.create_unix_server = make_mocked_coro(server)
#        self.wait_closed = make_mocked_coro()
#        self.loop = asyncio.new_event_loop()
#        self.loop.create_unix_server = self.create_unix_server
#        asyncio.set_event_loop(self.loop)
#
#    async def test_connect(self):
#        server = await UnixSocketLMTPController(LMTPHandler(), unix_socket='lmtp.sock', loop=self.loop).serve()
#        self.assertEqual(self.create_unix_server.call_count, 1)
#        self.assertEqual(self.wait_closed.call_count, 0)
#        server.close()
#        # self.assertEqual(self.wait_closed.call_count, 1)
#
#    def test_receive_mail(self):
#        from logging import getLogger
#        from aiosmtpd.lmtp import LMTP
#        from asgiref.sync import async_to_sync
#        log = getLogger('mail.log')
#        log.addHandler(logging.StreamHandler())
#        log.setLevel(logging.DEBUG)
#        handler = LMTP(LMTPHandler(), loop=self.loop)
#        transport = mock.Mock()
#        handler.connection_made(transport)
#
#        def _handle_client():
#            print("Handling client")
#            async_to_sync(handler._handle_client)()
#            print("Client handled")
#
#        thread = threading.Thread(target=_handle_client)
#        thread.start()
#
#        # handler.data_received(
#        #    b'HELO test\nMAIL FROM:<test1@test>\nRCPT TO:<test2@test>\nDATA\nSubject: test\nFrom: test1@test\nTo: '
#        #    b'test2@test\n\ntest\n.\nQUIT')
#        handler.data_received(b'HELO test\n')
#        handler.data_received(b'MAIL FROM:<test1@test>\n')
#        handler.data_received(b'RCPT TO:<test2@test>\n')
#        handler.data_received(b'DATA\n')
#        handler.data_received(b'Subject: test\n')
#        handler.data_received(b'From: test1@test\n')
#        handler.data_received(b'To: test2@test\n')
#        handler.data_received(b'\n')
#        handler.data_received(b'test\n')
#        handler.data_received(b'.\n')
#        handler.data_received(b'QUIT\n')
#
#        thread.join()
#
#        handler.connection_lost(None)
#        thread.join()
#
#        # self.assertEqual(len(Email.objects.all()), 1)
#        # self.assertEqual(Email.objects.all()[0].subject, 'test')
#        # self.assertEqual(Email.objects.all()[0].body, 'test')
#        # self.assertEqual(Email.objects.all()[0].sender, 'test')
#        # self.assertEqual(Email.objects.all()[0].recipient, 'test@test')