dfbca40730
Add Neo4j as an optional graph-native storage layer (ingestion profile). Introduces infra/neo4j with a singleton async driver wrapper and an idempotent bootstrap of constraints + indexes, wired into the FastAPI lifespan. Integration tests skip when no live Neo4j is reachable. Refs #186
38 lines
1.5 KiB
Python
38 lines
1.5 KiB
Python
"""Schema bootstrap is idempotent and produces the expected constraints/indexes."""
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from __future__ import annotations
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from infra.neo4j.schema import CONSTRAINTS, FULLTEXT_INDEXES, INDEXES, bootstrap_schema
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async def _count_schema(neo4j_driver) -> tuple[int, int]:
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async with neo4j_driver.driver.session(database=neo4j_driver.database) as session:
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constraints = await (await session.run("SHOW CONSTRAINTS")).data()
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indexes = await (await session.run("SHOW INDEXES")).data()
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return len(constraints), len(indexes)
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async def test_bootstrap_is_idempotent(neo4j_driver):
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await bootstrap_schema(neo4j_driver)
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first = await _count_schema(neo4j_driver)
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# Running a second time must not duplicate anything.
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await bootstrap_schema(neo4j_driver)
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second = await _count_schema(neo4j_driver)
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assert first == second
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# Sanity: we created at least what we declared.
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assert first[0] >= len(CONSTRAINTS)
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assert first[1] >= len(INDEXES) + len(FULLTEXT_INDEXES)
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async def test_document_id_is_unique(neo4j_driver):
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await bootstrap_schema(neo4j_driver)
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async with neo4j_driver.driver.session(database=neo4j_driver.database) as session:
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await session.run("CREATE (d:Document {id: 'doc-1', title: 'first'})")
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with_err: Exception | None = None
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try:
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await session.run("CREATE (d:Document {id: 'doc-1', title: 'dup'})")
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except Exception as exc:
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with_err = exc
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assert with_err is not None, "unique constraint on Document.id must reject duplicates"
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