from django.core import mail as django_mail
from django.core.exceptions import ImproperlyConfigured
from django.test import SimpleTestCase

from ..emails import AbstractMail
from .generic import EmailTestMixin

MAIL_TEMPLATE = 'dav_base/tests/mail.txt'


class TestCase(EmailTestMixin, SimpleTestCase):
    def test_no_template_configured(self):
        class ConcreteMail(AbstractMail):
            pass

        email = ConcreteMail()
        with self.assertRaises(ImproperlyConfigured):
            email.send()

    def test_no_get_recipients_implemented(self):
        class ConcreteMail(AbstractMail):
            _template_name = MAIL_TEMPLATE

        email = ConcreteMail()
        with self.assertRaises(NotImplementedError):
            email.send()

    def test_send(self):
        recipient = 'root@localhost'

        class ConcreteMail(AbstractMail):
            _template_name = MAIL_TEMPLATE

            def _get_recipients(self):
                return [recipient]

        email = ConcreteMail()
        email.send()

        self.assertEqual(len(django_mail.outbox), 1)
        mail = django_mail.outbox[0]

        self.assertSender(mail)
        self.assertRecipients(mail, [recipient])
        self.assertSubject(mail, u'')
        self.assertBody(mail, 'MAILBODY')