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44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
"""Backend isolation conformance suite (RFC 001 isolation contract).
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Runs the shared isolation assertions from ``_backend_conformance`` against the
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built-in local backends. Server-mode backends (qdrant) run the same assertions
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under their own fake/live client in ``test_qdrant_backend.py``.
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"""
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import pytest
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from _backend_conformance import assert_partition_isolation
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from mempalace.backends import PalaceRef
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from mempalace.backends.chroma import ChromaBackend
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from mempalace.backends.sqlite_exact import SQLiteExactBackend
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_LOCAL_BACKENDS = [
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pytest.param(ChromaBackend, id="chroma"),
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pytest.param(SQLiteExactBackend, id="sqlite_exact"),
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]
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@pytest.mark.parametrize("backend_cls", _LOCAL_BACKENDS)
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def test_cross_palace_isolation(backend_cls, tmp_path):
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"""One backend instance must isolate two distinct palaces (PalaceRef.id)."""
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backend = backend_cls()
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try:
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cols = []
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for label in ("alpha", "beta"):
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path = tmp_path / label
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ref = PalaceRef(id=str(path), local_path=str(path))
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cols.append(
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backend.get_collection(palace=ref, collection_name="mempalace_drawers", create=True)
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)
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assert_partition_isolation(backend, cols[0], cols[1])
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finally:
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backend.close()
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def test_local_backends_do_not_claim_namespace_isolation():
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"""Local backends isolate by on-disk path, not namespace; they must not
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advertise the namespace-isolation capability (RFC 001 isolation contract)."""
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assert "supports_namespace_isolation" not in ChromaBackend.capabilities
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assert "supports_namespace_isolation" not in SQLiteExactBackend.capabilities
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