Files
memes_bot/test_db.py
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goyban b55cee1650 Add schema migrations and scope uniqueness to the owner
Step 0 of the roadmap: everything from the moderation queue onward adds
columns, and init_db could only ever run CREATE TABLE IF NOT EXISTS, so
it could not alter a live deployment.

- Track schema state in PRAGMA user_version and run ordered migrations.
  Fresh installs create the v1 table and migrate forward, so the upgrade
  path runs on every new deployment rather than only on old ones.
- Rebuild media with UNIQUE(owner_id, file_unique_id). The old global
  unique constraint stopped two users from each saving the same file,
  which blocks public mode.
- Replace INSERT OR REPLACE with an upsert. Replacing deleted and
  reinserted the row, giving it a new id and silently invalidating any
  id the user had noted from /list.
- Give search_media an optional owner_id scope, defaulting to the
  current shared-library behaviour.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-01 21:23:10 +00:00

109 lines
3.6 KiB
Python

"""Migration tests. Run with: python test_db.py
The v1->v2 migration rebuilds the media table, so it drops the original.
These cases cover the paths that rebuild touches before it ever runs against
a real bot_db/media.db.
"""
import asyncio
import importlib
import os
import sqlite3
import sys
import tempfile
V1_SCHEMA = """
CREATE TABLE media (
id INTEGER PRIMARY KEY AUTOINCREMENT,
owner_id INTEGER NOT NULL,
file_id TEXT NOT NULL,
file_unique_id TEXT NOT NULL UNIQUE,
media_type TEXT NOT NULL,
keywords TEXT NOT NULL,
added_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);
"""
def user_version(path: str) -> int:
with sqlite3.connect(path) as c:
return c.execute("PRAGMA user_version").fetchone()[0]
def load_db(path: str):
os.environ["DB_PATH"] = path
import db
return importlib.reload(db)
async def test_legacy_upgrade(tmp: str):
path = os.path.join(tmp, "legacy.db")
with sqlite3.connect(path) as c:
c.executescript(V1_SCHEMA)
c.execute("INSERT INTO media (id,owner_id,file_id,file_unique_id,media_type,keywords)"
" VALUES (7,111,'FID_A','UNI_A','photo','cat,funny')")
c.execute("INSERT INTO media (id,owner_id,file_id,file_unique_id,media_type,keywords)"
" VALUES (9,111,'FID_B','UNI_B','gif','dog')")
db = load_db(path)
await db.init_db()
assert user_version(path) == 2
rows = sorted((r["id"], r["keywords"]) for r in await db.search_media(""))
assert rows == [(7, "cat,funny"), (9, "dog")], f"rows not preserved: {rows}"
print(" legacy v1 database upgrades to v2 with ids and keywords intact")
async def test_per_owner_uniqueness(tmp: str):
path = os.path.join(tmp, "owners.db")
db = load_db(path)
await db.init_db()
await db.add_media(111, "FID_A", "UNI_A", "photo", ["cat"])
await db.add_media(222, "FID_A2", "UNI_A", "photo", ["cat"])
assert len(await db.search_media("cat")) == 2, "two owners must each keep their own row"
assert len(await db.search_media("", owner_id=222)) == 1, "owner scoping failed"
print(" two owners can save the same file; owner scoping filters correctly")
async def test_readd_keeps_id(tmp: str):
path = os.path.join(tmp, "readd.db")
db = load_db(path)
await db.init_db()
await db.add_media(111, "FID_A", "UNI_A", "photo", ["cat"])
original = (await db.search_media("cat"))[0]["id"]
await db.add_media(111, "FID_NEW", "UNI_A", "photo", ["kitten"])
row = await db.get_media_by_id(original)
assert row is not None, "re-adding the same file orphaned its id"
assert row["keywords"] == "kitten" and row["file_id"] == "FID_NEW"
print(" re-adding a file updates in place and keeps its id")
async def test_fresh_and_idempotent(tmp: str):
path = os.path.join(tmp, "fresh.db")
db = load_db(path)
await db.init_db()
with sqlite3.connect(path) as c:
sql = c.execute("SELECT sql FROM sqlite_master WHERE name='media'").fetchone()[0]
assert "UNIQUE(owner_id, file_unique_id)" in sql
assert user_version(path) == 2
await db.init_db()
await db.init_db()
print(" fresh install lands on v2; init_db is idempotent")
async def main():
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
with tempfile.TemporaryDirectory() as tmp:
for test in (test_legacy_upgrade, test_per_owner_uniqueness,
test_readd_keeps_id, test_fresh_and_idempotent):
await test(tmp)
print("\nAll database tests passed.")
if __name__ == "__main__":
asyncio.run(main())