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brain-of-reese/tests/unit/test_models.py
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"""Unit tests: SQLAlchemy models register the pgvector schema on the metadata.
Importing :mod:`app.models` is what Alembic's ``env.py`` and the runtime rely
on; these tests lock the table/column contract (PLAN §5) without a live DB.
"""
from __future__ import annotations
from pgvector.sqlalchemy import Vector
from sqlalchemy import UniqueConstraint
import app.models # noqa: F401 (import registers all tables on Base.metadata)
from app.db import Base
def test_all_tables_registered() -> None:
tables = Base.metadata.tables
assert "documents" in tables
assert "chunks" in tables
assert "query_log" in tables
def test_chunks_embedding_is_vector_768() -> None:
chunks = Base.metadata.tables["chunks"]
col = chunks.c["embedding"]
assert isinstance(col.type, Vector)
assert col.type.dim == 768
# Embeddings are two-phase: inserted first, embedded later.
assert col.nullable is True
def test_chunks_reference_documents_cascade() -> None:
chunks = Base.metadata.tables["chunks"]
fkc = list(chunks.foreign_key_constraints)[0]
assert fkc.elements[0].column.table.name == "documents"
assert fkc.ondelete == "CASCADE"
def test_documents_unique_source_path() -> None:
documents = Base.metadata.tables["documents"]
uq = [
c
for c in documents.constraints
if isinstance(c, UniqueConstraint)
and {col.name for col in c.columns} == {"source", "path"}
]
assert uq, "documents must be unique on (source, path) — the upsert key"
def test_doc_drafts_token_is_unique_not_null() -> None:
"""Phase 59: the draft's URL credential — an unguessable uuid4,
UNIQUE + NOT NULL (no "un-drafted" state, unlike the NULLable
``saved_chats.share_token``)."""
drafts = Base.metadata.tables["doc_drafts"]
token = drafts.c["token"]
assert token.nullable is False, "doc_drafts.token must be NOT NULL"
uq = [
c
for c in drafts.constraints
if isinstance(c, UniqueConstraint)
and {col.name for col in c.columns} == {"token"}
]
assert uq, "doc_drafts must be unique on (token) — the URL credential"
def test_doc_drafts_column_contract() -> None:
"""Phase 59: the editable triple (title/path/body) + status +
timestamps are NOT NULL; ``branch`` / ``commit_sha`` are NULL
until the push endpoint records them."""
drafts = Base.metadata.tables["doc_drafts"]
assert set(drafts.c.keys()) == {
"id", "token", "title", "path", "body", "status",
"branch", "commit_sha", "created_at", "updated_at",
}
for name in ("title", "path", "body", "status", "created_at", "updated_at"):
assert drafts.c[name].nullable is False, f"{name} must be NOT NULL"
for name in ("branch", "commit_sha"):
assert drafts.c[name].nullable is True, f"{name} must be NULL until pushed"
assert drafts.c["status"].default is not None, "status needs an ORM default (draft)"
assert drafts.c["token"].default is not None, "token needs an ORM default (uuid4)"