Реализация на отдельных двух машинах с протестированным взаимодействием по проверке сообщений

VM1_app/codebase/backend/api-backend/tests/unit/test_domain.py

@@ -1,4 +1,7 @@
 import uuid
+from datetime import UTC, datetime
+from types import SimpleNamespace
+from unittest.mock import AsyncMock
 
 import pytest
 from pydantic import TypeAdapter, ValidationError
@@ -14,7 +17,12 @@ from app.schemas import (
     decode_cursor,
     encode_cursor,
 )
-from app.services import MESSAGE_SAFETY_REPLIES, safety_reply_message
+from app.services import (
+    MESSAGE_SAFETY_REPLIES,
+    ensure_delivery_outbox,
+    safety_reply_message,
+    safety_task_recovery_at,
+)
 
 
 def test_asyncpg_receives_libpq_dsn_without_sqlalchemy_driver() -> None:
@@ -67,6 +75,41 @@ def test_message_safety_business_replies_are_content_specific() -> None:
     assert reply.delivery_status == "delivered"
 
 
+def test_safety_recovery_starts_after_synchronous_polling_window() -> None:
+    now = datetime(2026, 8, 19, tzinfo=UTC)
+    settings = SimpleNamespace(
+        message_safety_task_poll_max_sec=300,
+        message_safety_task_poll_interval_sec=2,
+    )
+
+    assert (safety_task_recovery_at(now, settings) - now).total_seconds() == 307
+
+
+async def test_delivery_outbox_returns_concurrent_insert_winner() -> None:
+    existing = object()
+    session = SimpleNamespace(
+        execute=AsyncMock(
+            side_effect=[
+                SimpleNamespace(scalar_one_or_none=lambda: None),
+                SimpleNamespace(scalar_one=lambda: existing),
+            ]
+        ),
+        get=AsyncMock(),
+    )
+
+    result = await ensure_delivery_outbox(
+        session,
+        message_id=uuid.uuid4(),
+        external_chat_id=uuid.uuid4(),
+        payload_json={"message_id": "test"},
+        next_attempt_at=datetime(2026, 8, 19, tzinfo=UTC),
+    )
+
+    assert result is existing
+    assert session.execute.await_count == 2
+    session.get.assert_not_awaited()
+
+
 def test_fingerprint_is_canonical_and_user_scoped() -> None:
     user = uuid.uuid4()
     first = canonical_fingerprint("post", "/dialogs/{id}", {"id": "1"}, {"b": 2, "a": 1}, user)