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import asyncio
import unittest
from dataclasses import dataclass
from typing import Any, List
from bot.rules import attachments
# Using `MagicMock` sadly doesn't work for this usecase
# since it's __eq__ compares the MagicMock's ID. We just
# want to compare the actual attributes we set.
@dataclass
class FakeMessage:
author: str
attachments: List[Any]
def msg(total_attachments: int) -> FakeMessage:
return FakeMessage(author='lemon', attachments=list(range(total_attachments)))
class AttachmentRuleTests(unittest.TestCase):
"""Tests applying the `attachment` antispam rule."""
def test_allows_messages_without_too_many_attachments(self):
"""Messages without too many attachments are allowed as-is."""
cases = (
(msg(0), msg(0), msg(0)),
(msg(2), msg(2)),
(msg(0),),
)
for last_message, *recent_messages in cases:
with self.subTest(last_message=last_message, recent_messages=recent_messages):
coro = attachments.apply(last_message, recent_messages, {'max': 5})
self.assertIsNone(asyncio.run(coro))
def test_disallows_messages_with_too_many_attachments(self):
"""Messages with too many attachments trigger the rule."""
cases = (
((msg(4), msg(0), msg(6)), [msg(4), msg(6)], 10),
((msg(6),), [msg(6)], 6),
((msg(1),) * 6, [msg(1)] * 6, 6),
)
for messages, relevant_messages, total in cases:
with self.subTest(messages=messages, relevant_messages=relevant_messages, total=total):
last_message, *recent_messages = messages
coro = attachments.apply(last_message, recent_messages, {'max': 5})
self.assertEqual(
asyncio.run(coro),
(f"sent {total} attachments in 5s", ('lemon',), relevant_messages)
)
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