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mdpolish/tests/test_artifact_store.py
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Python

from __future__ import annotations
import json
import stat
from hashlib import sha256
from pathlib import Path
import pytest
import mdpolish.artifact_store as artifact_store
from mdpolish.artifact_store import ArtifactStoreError, StoredDocument, publish_run
def stored_document(document_id: str = "paper", output: bytes | None = b"cleaned\n") -> StoredDocument:
status = "success" if output is not None else "failed"
current_sha256 = sha256(output).hexdigest() if output is not None else "2" * 64
payload = {
"schema_version": 1,
"document": {"document_id": document_id, "source_label": f"inputs/{document_id}.md"},
"status": status,
"input_sha256": "1" * 64,
"current_sha256": current_sha256,
"changes": [],
"errors": [] if status == "success" else [{"error_type": "SyntheticError"}],
"residual_proposals": [],
"output": {
"cleaned_path": "cleaned.md" if output is not None else None,
"diff_path": "changes.diff" if output is not None else None,
},
}
return StoredDocument(
document_id=document_id,
result_json=(json.dumps(payload, indent=2) + "\n").encode(),
cleaned_markdown=output,
diff=b"" if output is not None else None,
output_sha256=sha256(output).hexdigest() if output is not None else None,
)
def manifest_json(
run_date: str,
run_id: str,
documents: tuple[StoredDocument, ...],
) -> bytes:
indexes: list[dict[str, object]] = []
statuses: list[str] = []
change_count = 0
for document in documents:
report = json.loads(document.result_json)
status = report["status"]
statuses.append(status)
change_count += len(report["changes"])
base = f"documents/{document.document_id}"
indexes.append(
{
"document_id": document.document_id,
"source_label": report["document"]["source_label"],
"status": status,
"input_sha256": report["input_sha256"],
"current_sha256": report["current_sha256"],
"change_count": len(report["changes"]),
"result_path": f"{base}/result.json",
"cleaned_path": f"{base}/cleaned.md" if status == "success" else None,
"diff_path": f"{base}/changes.diff" if status == "success" else None,
}
)
failed_count = statuses.count("failed")
unstable_count = statuses.count("unstable")
overall_status = "failed" if failed_count else "unstable" if unstable_count else "success"
payload = {
"schema_version": 1,
"run": {"run_id": run_id, "run_date": run_date, "status": overall_status},
"documents": indexes,
"summary": {
"document_count": len(documents),
"success_count": statuses.count("success"),
"failed_count": failed_count,
"unstable_count": unstable_count,
"change_count": change_count,
},
}
return (json.dumps(payload, indent=2) + "\n").encode()
def test_publish_run_creates_private_date_layout_and_status_specific_files(tmp_path: Path) -> None:
artifacts_root = tmp_path / "artifacts"
documents = (stored_document("success"), stored_document("failed", None))
run_directory = publish_run(
artifacts_root=artifacts_root,
run_date="2026-08-22",
run_id="example-run",
manifest_json=manifest_json("2026-08-22", "example-run", documents),
documents=documents,
)
assert run_directory == artifacts_root / "2026-08-22" / "runs" / "example-run"
assert json.loads((run_directory / "manifest.json").read_bytes())["run"]["status"] == "failed"
assert (run_directory / "documents/success/result.json").is_file()
assert (run_directory / "documents/success/cleaned.md").read_bytes() == b"cleaned\n"
assert (run_directory / "documents/success/changes.diff").read_bytes() == b""
assert (run_directory / "documents/failed/result.json").is_file()
assert not (run_directory / "documents/failed/cleaned.md").exists()
assert not (run_directory / "documents/failed/changes.diff").exists()
for directory in (
artifacts_root,
artifacts_root / "2026-08-22",
artifacts_root / "2026-08-22/runs",
run_directory,
run_directory / "documents",
run_directory / "documents/success",
):
assert stat.S_IMODE(directory.stat().st_mode) == 0o700
for artifact_file in run_directory.rglob("*"):
if artifact_file.is_file():
assert stat.S_IMODE(artifact_file.stat().st_mode) == 0o600
def test_publish_run_rejects_existing_target_without_overwriting(tmp_path: Path) -> None:
artifacts_root = tmp_path / "artifacts"
documents = (stored_document(),)
first_manifest = manifest_json("2026-08-22", "same-run", documents)
run_directory = publish_run(
artifacts_root=artifacts_root,
run_date="2026-08-22",
run_id="same-run",
manifest_json=first_manifest,
documents=documents,
)
with pytest.raises(ArtifactStoreError, match="already exists"):
publish_run(
artifacts_root=artifacts_root,
run_date="2026-08-22",
run_id="same-run",
manifest_json=first_manifest,
documents=documents,
)
assert (run_directory / "manifest.json").read_bytes() == first_manifest
@pytest.mark.parametrize(
("run_date", "run_id"),
[
("2026-8-22", "valid"),
("2026-02-30", "valid"),
("2026-08-22", "Uppercase"),
("2026-08-22", "../escape"),
("2026-08-22", "two..dots"),
],
)
def test_publish_run_rejects_unsafe_date_and_run_id(tmp_path: Path, run_date: str, run_id: str) -> None:
documents = (stored_document(),)
with pytest.raises(ArtifactStoreError):
publish_run(
artifacts_root=tmp_path / "artifacts",
run_date=run_date,
run_id=run_id,
manifest_json=manifest_json(run_date, run_id, documents),
documents=documents,
)
def test_publish_run_rejects_inconsistent_or_duplicate_document_artifacts(tmp_path: Path) -> None:
valid = stored_document()
bad_hash = StoredDocument("paper", valid.result_json, b"output", b"", "0" * 64)
with pytest.raises(ArtifactStoreError, match="output hash"):
publish_run(
artifacts_root=tmp_path / "artifacts-a",
run_date="2026-08-22",
run_id="bad-hash",
manifest_json=manifest_json("2026-08-22", "bad-hash", (bad_hash,)),
documents=(bad_hash,),
)
duplicates = (stored_document(), stored_document())
with pytest.raises(ArtifactStoreError, match="unique"):
publish_run(
artifacts_root=tmp_path / "artifacts-b",
run_date="2026-08-22",
run_id="duplicate",
manifest_json=manifest_json("2026-08-22", "duplicate", duplicates),
documents=duplicates,
)
def test_publish_run_rejects_manifest_path_or_document_mismatch(tmp_path: Path) -> None:
documents = (stored_document(),)
wrong_date = manifest_json("2026-08-21", "review", documents)
with pytest.raises(ArtifactStoreError, match="identity"):
publish_run(
artifacts_root=tmp_path / "artifacts-a",
run_date="2026-08-22",
run_id="review",
manifest_json=wrong_date,
documents=documents,
)
payload = json.loads(manifest_json("2026-08-22", "review", documents))
payload["documents"][0]["change_count"] = 99
mismatched_index = (json.dumps(payload, indent=2) + "\n").encode()
with pytest.raises(ArtifactStoreError, match="index"):
publish_run(
artifacts_root=tmp_path / "artifacts-b",
run_date="2026-08-22",
run_id="review",
manifest_json=mismatched_index,
documents=documents,
)
def test_publish_race_does_not_replace_a_new_target(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
documents = (stored_document(),)
original_rename = artifact_store._rename_no_replace
def create_competing_target(source: Path, target: Path) -> None:
target.mkdir(mode=0o700)
(target / "keep").write_bytes(b"existing")
original_rename(source, target)
monkeypatch.setattr(artifact_store, "_rename_no_replace", create_competing_target)
with pytest.raises(ArtifactStoreError, match="already exists"):
publish_run(
artifacts_root=tmp_path / "artifacts",
run_date="2026-08-22",
run_id="raced",
manifest_json=manifest_json("2026-08-22", "raced", documents),
documents=documents,
)
target = tmp_path / "artifacts/2026-08-22/runs/raced"
assert (target / "keep").read_bytes() == b"existing"
assert not any(path.name.startswith(".raced.") for path in target.parent.iterdir())
def test_write_failure_cleans_temporary_directory_and_does_not_publish(
tmp_path: Path,
monkeypatch: pytest.MonkeyPatch,
) -> None:
original_write = artifact_store._write_private_file
call_count = 0
def fail_second_write(path: Path, content: bytes) -> None:
nonlocal call_count
call_count += 1
if call_count == 2:
raise OSError("synthetic write failure")
original_write(path, content)
monkeypatch.setattr(artifact_store, "_write_private_file", fail_second_write)
documents = (stored_document(),)
with pytest.raises(OSError, match="synthetic"):
publish_run(
artifacts_root=tmp_path / "artifacts",
run_date="2026-08-22",
run_id="broken",
manifest_json=manifest_json("2026-08-22", "broken", documents),
documents=documents,
)
runs_directory = tmp_path / "artifacts/2026-08-22/runs"
assert list(runs_directory.iterdir()) == []