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Resend: add support for send_at

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Resend's new `scheduled_at` API field allows delayed sending
(though not with attachments or batch sending).

Closes #396.
This commit is contained in:
Mike Edmunds
2024-09-06 11:29:01 -07:00
parent af6eaea565
commit 2f2a888f61
6 changed files with 63 additions and 7 deletions
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41
tests/test_resend_backend.py
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@@ -1,5 +1,6 @@
import json
from base64 import b64encode
from datetime import date, datetime
from decimal import Decimal
from email.mime.base import MIMEBase
from email.mime.image import MIMEImage
@@ -8,6 +9,10 @@ from email.utils import formataddr
from django.core import mail
from django.core.exceptions import ImproperlyConfigured
from django.test import SimpleTestCase, override_settings, tag
from django.utils.timezone import (
get_fixed_timezone,
override as override_current_timezone,
)
from anymail.exceptions import (
AnymailAPIError,
@@ -416,9 +421,41 @@ class ResendBackendAnymailFeatureTests(ResendBackendMockAPITestCase):
)
def test_send_at(self):
self.message.send_at = 1651820889 # 2022-05-06 07:08:09 UTC
with self.assertRaisesMessage(AnymailUnsupportedFeature, "send_at"):
utc_plus_6 = get_fixed_timezone(6 * 60)
utc_minus_8 = get_fixed_timezone(-8 * 60)
with override_current_timezone(utc_plus_6):
# Timezone-naive datetime assumed to be Django current_timezone
self.message.send_at = datetime(2022, 10, 11, 12, 13, 14, 123456)
self.message.send()
data = self.get_api_call_json()
# (Resend can't handle microseconds; truncate to milliseconds.)
self.assertEqual(data["scheduled_at"], "2022-10-11T12:13:14.123+06:00")
# Timezone-aware datetime converted to UTC:
self.message.send_at = datetime(2016, 3, 4, 5, 6, 7, tzinfo=utc_minus_8)
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data["scheduled_at"], "2016-03-04T05:06:07-08:00")
# Date-only treated as midnight in current timezone
# (which probably won't send since it's not in the future)
self.message.send_at = date(2022, 10, 22)
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data["scheduled_at"], "2022-10-22T00:00:00+06:00")
# POSIX timestamp
self.message.send_at = 1651820889 # 2022-05-06 07:08:09 UTC
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data["scheduled_at"], "2022-05-06T07:08:09+00:00")
# String passed unchanged (this is *not* portable between ESPs)
self.message.send_at = "2013-11-12T01:02:03Z"
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data["scheduled_at"], "2013-11-12T01:02:03Z")
def test_tags(self):
self.message.tags = ["receipt", "reorder test 12"]