feat(poll): enforce active respondent uniqueness

This commit is contained in:
2026-07-22 02:54:09 +02:00
parent e2e816cb21
commit cac7733bee
3 changed files with 321 additions and 0 deletions

210
tests/test_migrations.py Normal file
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from __future__ import annotations
import tempfile
import unittest
from datetime import datetime, timedelta, timezone
from pathlib import Path
from alembic import command
from alembic.runtime.migration import MigrationContext
from sqlalchemy import create_engine, inspect
from sqlalchemy.exc import IntegrityError
from sqlalchemy.orm import Session
from govoplan_core.db.migrations import alembic_config
from govoplan_poll.backend.db.models import PollResponse
from govoplan_poll.backend.manifest import get_manifest
from govoplan_poll.backend.schemas import (
PollCreateRequest,
PollOptionInput,
)
from govoplan_poll.backend.service import _existing_response, create_poll
_PREVIOUS_POLL_HEAD = "5d6e7f8a9b0c"
_POLL_HEAD = "6e7f8a9b0c1d"
_INDEX_NAME = "uq_poll_responses_active_respondent"
class PollMigrationTests(unittest.TestCase):
@staticmethod
def _config(url: str):
return alembic_config(
database_url=url,
enabled_modules=("poll",),
manifest_factories=(get_manifest,),
)
def test_deduplicates_deterministically_and_enforces_partial_index(self) -> None:
with tempfile.TemporaryDirectory(
prefix="govoplan-poll-migration-"
) as directory:
url = f"sqlite:///{Path(directory) / 'poll.db'}"
config = self._config(url)
command.upgrade(config, _PREVIOUS_POLL_HEAD)
engine = create_engine(url)
latest = datetime(2026, 7, 22, 10, 0, tzinfo=timezone.utc)
historical_deleted_at = latest - timedelta(days=2)
historical_updated_at = latest - timedelta(days=1)
try:
with Session(engine) as session:
poll = create_poll(
session,
tenant_id="tenant-1",
user_id="owner-1",
payload=PollCreateRequest(
title="Migration probe",
kind="single_choice",
status="open",
allow_anonymous=True,
options=[
PollOptionInput(key="yes", label="Yes"),
PollOptionInput(key="no", label="No"),
],
),
)
poll_id = poll.id
session.add_all(
[
PollResponse(
id="identified-oldest",
tenant_id="tenant-1",
poll_id=poll_id,
respondent_id="person-1",
answers=[],
submitted_at=latest - timedelta(hours=1),
),
PollResponse(
id="identified-latest-a",
tenant_id="tenant-1",
poll_id=poll_id,
respondent_id="person-1",
answers=[],
submitted_at=latest,
),
PollResponse(
id="identified-latest-b",
tenant_id="tenant-1",
poll_id=poll_id,
respondent_id="person-1",
answers=[],
submitted_at=latest,
),
PollResponse(
id="anonymous-a",
tenant_id="tenant-1",
poll_id=poll_id,
respondent_id=None,
answers=[],
submitted_at=latest,
),
PollResponse(
id="anonymous-b",
tenant_id="tenant-1",
poll_id=poll_id,
respondent_id=None,
answers=[],
submitted_at=latest,
),
PollResponse(
id="already-deleted",
tenant_id="tenant-1",
poll_id=poll_id,
respondent_id="person-1",
answers=[],
submitted_at=latest + timedelta(hours=1),
deleted_at=historical_deleted_at,
updated_at=historical_updated_at,
),
]
)
session.flush()
self.assertEqual(
_existing_response(
session,
poll=poll,
respondent_id="person-1",
).id,
"identified-latest-b",
)
session.commit()
command.upgrade(config, "heads")
with Session(engine) as session:
rows = {
response.id: response
for response in session.query(PollResponse).all()
}
self.assertIsNone(rows["identified-latest-b"].deleted_at)
tombstoned = (
rows["identified-oldest"],
rows["identified-latest-a"],
)
self.assertTrue(
all(response.deleted_at is not None for response in tombstoned)
)
self.assertTrue(
all(
response.deleted_at == response.updated_at
for response in tombstoned
)
)
self.assertEqual(
len({response.deleted_at for response in tombstoned}),
1,
)
self.assertIsNone(rows["anonymous-a"].deleted_at)
self.assertIsNone(rows["anonymous-b"].deleted_at)
self.assertEqual(
rows["already-deleted"].deleted_at,
historical_deleted_at.replace(tzinfo=None),
)
self.assertEqual(
rows["already-deleted"].updated_at,
historical_updated_at.replace(tzinfo=None),
)
session.add(
PollResponse(
tenant_id="tenant-1",
poll_id=poll_id,
respondent_id="person-1",
answers=[],
submitted_at=latest + timedelta(hours=2),
)
)
with self.assertRaises(IntegrityError):
session.flush()
session.rollback()
session.add(
PollResponse(
tenant_id="tenant-1",
poll_id=poll_id,
respondent_id=None,
answers=[],
submitted_at=latest + timedelta(hours=2),
)
)
session.commit()
with engine.connect() as connection:
heads = set(
MigrationContext.configure(connection).get_current_heads()
)
indexes = {
item["name"]: item
for item in inspect(connection).get_indexes(
"poll_responses"
)
}
self.assertIn(_POLL_HEAD, heads)
self.assertIn(_INDEX_NAME, indexes)
self.assertTrue(indexes[_INDEX_NAME]["unique"])
finally:
engine.dispose()
if __name__ == "__main__":
unittest.main()