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import os
import unittest
from email.utils import formataddr
from django.test import SimpleTestCase, override_settings, tag
from anymail.exceptions import AnymailAPIError
from anymail.message import AnymailMessage
from .utils import AnymailTestMixin
ANYMAIL_TEST_RESEND_API_KEY = os.getenv("ANYMAIL_TEST_RESEND_API_KEY")
ANYMAIL_TEST_RESEND_DOMAIN = os.getenv("ANYMAIL_TEST_RESEND_DOMAIN")
@tag("resend", "live")
@unittest.skipUnless(
ANYMAIL_TEST_RESEND_API_KEY and ANYMAIL_TEST_RESEND_DOMAIN,
"Set ANYMAIL_TEST_RESEND_API_KEY and ANYMAIL_TEST_RESEND_DOMAIN "
"environment variables to run Resend integration tests",
)
@override_settings(
ANYMAIL_RESEND_API_KEY=ANYMAIL_TEST_RESEND_API_KEY,
EMAIL_BACKEND="anymail.backends.resend.EmailBackend",
)
class ResendBackendIntegrationTests(AnymailTestMixin, SimpleTestCase):
"""Resend.com API integration tests
Resend doesn't have sandbox so these tests run
against the **live** Resend API, using the
environment variable `ANYMAIL_TEST_RESEND_API_KEY` as the API key,
and `ANYMAIL_TEST_RESEND_DOMAIN` to construct sender addresses.
If those variables are not set, these tests won't run.
"""
def setUp(self):
super().setUp()
self.from_email = "from@%s" % ANYMAIL_TEST_RESEND_DOMAIN
self.message = AnymailMessage(
"Anymail Resend integration test",
"Text content",
self.from_email,
["test+to1@anymail.dev"],
)
self.message.attach_alternative("<p>HTML content</p>", "text/html")
def test_simple_send(self):
# Example of getting the Resend message id from the message
sent_count = self.message.send()
self.assertEqual(sent_count, 1)
anymail_status = self.message.anymail_status
sent_status = anymail_status.recipients["test+to1@anymail.dev"].status
message_id = anymail_status.recipients["test+to1@anymail.dev"].message_id
self.assertEqual(sent_status, "queued") # Resend always queues
self.assertGreater(len(message_id), 0) # non-empty string
# set of all recipient statuses:
self.assertEqual(anymail_status.status, {sent_status})
self.assertEqual(anymail_status.message_id, message_id)
def test_all_options(self):
message = AnymailMessage(
subject="Anymail Resend all-options integration test",
body="This is the text body",
# Verify workarounds for address formatting issues:
from_email=formataddr(("Test «Från», med komma", self.from_email)),
to=["test+to1@anymail.dev", '"Recipient 2, OK?" <test+to2@anymail.dev>'],
cc=["test+cc1@anymail.dev", "Copy 2 <test+cc2@anymail.dev>"],
bcc=["test+bcc1@anymail.dev", "Blind Copy 2 <test+bcc2@anymail.dev>"],
reply_to=['"Reply, with comma" <reply@example.com>', "reply2@example.com"],
headers={"X-Anymail-Test": "value", "X-Anymail-Count": 3},
metadata={"meta1": "simple string", "meta2": 2},
tags=["tag 1", "tag 2"],
# Resend supports send_at or attachments, but not both at once.
# send_at=datetime.now() + timedelta(minutes=2),
)
message.attach_alternative("<p>HTML content</p>", "text/html")
message.attach("attachment1.txt", "Here is some\ntext for you", "text/plain")
message.attach("attachment2.csv", "ID,Name\n1,Amy Lina", "text/csv")
message.send()
# Resend always queues:
self.assertEqual(message.anymail_status.status, {"queued"})
self.assertGreater(
len(message.anymail_status.message_id), 0
) # non-empty string
def test_batch_send(self):
# merge_metadata, merge_headers, or merge_data will use batch send API
message = AnymailMessage(
subject="Anymail Resend batch sendintegration test",
body="This is the text body",
from_email=self.from_email,
to=["test+to1@anymail.dev", '"Recipient 2" <test+to2@anymail.dev>'],
metadata={"meta1": "simple string", "meta2": 2},
merge_metadata={
"test+to1@anymail.dev": {"meta3": "recipient 1"},
"test+to2@anymail.dev": {"meta3": "recipient 2"},
},
tags=["tag 1", "tag 2"],
headers={
"List-Unsubscribe-Post": "List-Unsubscribe=One-Click",
"List-Unsubscribe": "<mailto:unsubscribe@example.com>",
},
merge_headers={
"test+to1@anymail.dev": {
"List-Unsubscribe": "<https://example.com/a/>",
},
"test+to2@anymail.dev": {
"List-Unsubscribe": "<https://example.com/b/>",
},
},
)
message.attach_alternative("<p>HTML content</p>", "text/html")
# Resend does not support attachments in batch send (2024-11-21)
# message.attach("attachment1.txt", "Here is some\ntext for you", "text/plain")
message.send()
# Resend always queues:
self.assertEqual(message.anymail_status.status, {"queued"})
recipient_status = message.anymail_status.recipients
self.assertEqual(recipient_status["test+to1@anymail.dev"].status, "queued")
self.assertEqual(recipient_status["test+to2@anymail.dev"].status, "queued")
self.assertRegex(recipient_status["test+to1@anymail.dev"].message_id, r".+")
self.assertRegex(recipient_status["test+to2@anymail.dev"].message_id, r".+")
# Each recipient gets their own message_id:
self.assertNotEqual(
recipient_status["test+to1@anymail.dev"].message_id,
recipient_status["test+to2@anymail.dev"].message_id,
)
@unittest.skip("Resend has stopped responding to bad/missing API keys (12/2023)")
@override_settings(ANYMAIL_RESEND_API_KEY="Hey, that's not an API key!")
def test_invalid_api_key(self):
with self.assertRaisesMessage(AnymailAPIError, "API key is invalid"):
self.message.send()
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