vitor-aignosi
e4fc12e529
QTZPOC-20: Enhance system robustness and test coverage across bundle processing, activity error handling, and worker operations. * Strengthen bundle reader validation with new tests for archive integrity, security vulnerabilities (e.g., path traversal, duplicate entries, special file types), and I/O error resilience. * Improve error handling and status propagation in PI Web API, MLflow, and OPC activities, including partial write scenarios and OPC session management. * Add comprehensive tests for worker startup, configuration, graceful shutdown, and Prometheus metrics server initialization. * Introduce a new utility for intelligent DataFrame debugging, summarizing large dataframes for concise logging, and refine exception chain summarization. * Update code coverage configuration to exclude @overload decorator lines.
609 lines
20 KiB
Python
609 lines
20 KiB
Python
"""The seven gates: what each one rejects, in what order, and what it leaves on disk."""
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import io
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import json
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import os
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import random
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import stat
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import zipfile
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from pathlib import Path
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import nacl.bindings as sodium
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import pytest
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from laborious.utils.bundle import format as fmt
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from laborious.utils.bundle.reader import BundleGateError, BundleLimits, BundleReader
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from laborious.utils.bundle.steps import ImportStep
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from tests.helpers import bundle_factory as factory
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OBJECT_KEY = 'imported_models/factory_model_v2.sientia'
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@pytest.fixture
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def reader() -> BundleReader:
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return BundleReader()
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def _bundle_file(work_dir: Path, payload: bytes) -> Path:
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target = work_dir / 'download.sientia'
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target.write_bytes(payload)
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return target
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def _open(reader: BundleReader, work_dir: Path, payload: bytes, password: str | None = None):
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return reader.open(
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_bundle_file(work_dir, payload),
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password if password is not None else factory.DEFAULT_PASSWORD,
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work_dir / 'extract',
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work_dir,
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)
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def _extracted_files(root: Path) -> list[str]:
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if not root.exists():
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return []
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return sorted(str(p.relative_to(root)) for p in root.rglob('*') if p.is_file())
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# ------------------------------------------------------------------- gate 1
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def test_gate_1_accepts_a_well_shaped_object(reader):
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reader.check_object_limits(size=1024, key=OBJECT_KEY)
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def test_gate_1_rejects_an_oversized_object(reader):
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limited = BundleReader(BundleLimits(max_object_bytes=1000))
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with pytest.raises(BundleGateError) as error:
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limited.check_object_limits(size=1001, key=OBJECT_KEY)
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assert error.value.gate == 1
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assert error.value.step is ImportStep.DOWNLOAD
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def test_gate_1_rejects_an_empty_object(reader):
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with pytest.raises(BundleGateError, match='empty'):
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reader.check_object_limits(size=0, key=OBJECT_KEY)
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def test_gate_1_rejects_a_key_outside_the_import_prefix(reader):
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with pytest.raises(BundleGateError, match='import prefix'):
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reader.check_object_limits(size=10, key='other_place/model.sientia')
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def test_gate_1_rejects_a_key_with_the_wrong_suffix(reader):
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with pytest.raises(BundleGateError, match='.sientia'):
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reader.check_object_limits(size=10, key='imported_models/model.zip')
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# ------------------------------------------------------------- golden bundle
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def test_opens_the_producer_fixture(golden_bundle, golden_password, work_dir, reader):
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"""The producer's own bytes, at the producer's own KDF cost."""
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opened = reader.open(golden_bundle, golden_password, work_dir / 'extract', work_dir)
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assert opened.metadata['model_name'] == 'fixture_model'
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assert opened.metadata['experiment_name'] == 'fixture_experiment'
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assert set(opened.metadata) == {
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'model_name',
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'experiment_name',
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'run_id',
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'model_version',
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'model_project',
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'export_timestamp',
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}
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assert opened.parameters['target_variable'] == 'SE'
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assert opened.header is not None
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assert opened.digest == opened.header.ciphertext_digest.hex()
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assert _extracted_files(opened.extracted_dir) == [
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'artifacts/data_model/MLmodel',
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'artifacts/data_model/conda.yaml',
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'artifacts/data_model/model.pkl',
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'artifacts/data_model/python_env.yaml',
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'artifacts/data_model/requirements.txt',
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'artifacts/model_card/model_card.json',
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'artifacts/prediction_model/MLmodel',
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'artifacts/prediction_model/conda.yaml',
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'artifacts/prediction_model/model.pkl',
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'artifacts/prediction_model/python_env.yaml',
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'artifacts/prediction_model/requirements.txt',
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'artifacts/raw_data.csv',
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'artifacts/test_data.csv',
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'artifacts/train_data.csv',
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'metadata.json',
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]
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assert list(work_dir.glob('*.zip')) == []
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def test_fixture_metadata_matches_its_committed_plaintext_copy(
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golden_bundle, golden_password, work_dir, reader
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):
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from tests.laborious.utils.bundle.conftest import GOLDEN_METADATA
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opened = reader.open(golden_bundle, golden_password, work_dir / 'extract', work_dir)
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committed = json.loads(GOLDEN_METADATA.read_text(encoding='utf-8'))
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assert opened.metadata == committed['metadata']
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assert opened.parameters == committed['parameters']
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# ------------------------------------------------------------------- gate 2
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def test_gate_2_rejects_a_wrong_magic_before_deriving(work_dir, reader, monkeypatch):
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payload = factory.make_bundle(magic=b'NOTSIENT')
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monkeypatch.setattr(
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sodium, 'crypto_pwhash_alg', _never_called('key derivation must not run at gate 2')
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)
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with pytest.raises(BundleGateError) as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 2
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assert error.value.step is ImportStep.DOWNLOAD
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def test_gate_2_rejects_kdf_parameters_above_the_ceiling_without_allocating(
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work_dir, reader, monkeypatch
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):
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payload = factory.make_bundle(declared_memlimit=512 * 1024 * 1024)
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monkeypatch.setattr(
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sodium, 'crypto_pwhash_alg', _never_called('the ceiling must be enforced before deriving')
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)
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with pytest.raises(BundleGateError) as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 2
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def test_gate_2_rejects_a_digest_mismatch(work_dir, reader):
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payload = factory.make_bundle(digest_override=bytes(32))
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with pytest.raises(BundleGateError) as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 2
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def test_gate_2_rejects_a_truncated_transfer(work_dir, reader):
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payload = factory.truncate_bundle(factory.make_bundle())
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with pytest.raises(BundleGateError) as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 2
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def test_gate_2_wraps_an_os_error_reading_the_file(work_dir, reader):
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"""A download that never landed on disk is an OS error, not a format one."""
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missing = work_dir / 'never-downloaded.sientia'
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with pytest.raises(BundleGateError, match='could not be read') as error:
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reader.open(missing, factory.DEFAULT_PASSWORD, work_dir / 'extract', work_dir)
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assert error.value.gate == 2
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def _never_called(message: str):
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def _raise(*_args, **_kwargs):
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raise AssertionError(message)
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return _raise
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# ------------------------------------------------------------------- gate 3
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AMBIGUOUS_REASON = 'wrong password, or the file is damaged or was altered'
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def test_gate_3_wrong_password(work_dir, reader):
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payload = factory.make_bundle()
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with pytest.raises(BundleGateError) as error:
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_open(reader, work_dir, payload, password='Wrong1Password!Here')
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assert error.value.gate == 3
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assert error.value.step is ImportStep.DECRYPTION
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assert AMBIGUOUS_REASON in str(error.value)
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def test_gate_3_altered_ciphertext_reads_the_same_as_a_wrong_password(work_dir, reader):
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tampered = factory.tamper_ciphertext(factory.make_bundle())
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with pytest.raises(BundleGateError) as altered:
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_open(reader, work_dir, tampered)
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wrong_password_payload = factory.make_bundle()
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with pytest.raises(BundleGateError) as wrong_password:
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_open(reader, work_dir, wrong_password_payload, password='Wrong1Password!Here')
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assert str(altered.value) == str(wrong_password.value)
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assert altered.value.gate == wrong_password.value.gate == 3
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def test_gate_3_stream_without_a_final_tag_is_rejected(work_dir, reader):
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payload = factory.make_bundle(drop_final_tag=True)
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with pytest.raises(BundleGateError) as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 3
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assert AMBIGUOUS_REASON in str(error.value)
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def test_gate_3_wraps_an_os_error_while_writing_the_decrypted_zip(work_dir, reader, monkeypatch):
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"""A write failure while streaming the plaintext to disk is reported as disk trouble, not as
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a bad password — the AEAD never even got to disagree."""
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payload = factory.make_bundle()
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def _raise_os_error(*_args, **_kwargs):
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raise OSError('disk full')
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monkeypatch.setattr(reader, '_pull_stream', _raise_os_error)
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with pytest.raises(BundleGateError, match='could not be written') as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 3
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def test_gate_3_leaves_no_decrypted_zip_behind(work_dir, reader):
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payload = factory.make_bundle()
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with pytest.raises(BundleGateError):
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_open(reader, work_dir, payload, password='Wrong1Password!Here')
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assert list(work_dir.glob('*.zip')) == []
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def test_gate_3_normalises_the_password_to_nfc(work_dir, reader):
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composed = 'Café1Model!Test'
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decomposed = 'Café1Model!Test'
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payload = factory.make_bundle(password=composed)
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opened = _open(reader, work_dir, payload, password=decomposed)
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assert opened.metadata['model_name'] == 'factory_model'
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def test_gate_3_does_not_trim_the_password(work_dir, reader):
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payload = factory.make_bundle(password='Trailing1Space!Test ')
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with pytest.raises(BundleGateError):
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_open(reader, work_dir, payload, password='Trailing1Space!Test')
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def test_multi_chunk_plaintext_round_trips(work_dir, reader):
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"""More than 64 KiB of plaintext, so `MESSAGE` and `FINAL` framing are both exercised."""
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spec = factory.ZipSpec()
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# Incompressible on purpose: a compressible filler would deflate below one chunk and the test
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# would silently stop covering multi-chunk framing.
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spec.files['artifacts/prediction_model/model.pkl'] = random.Random( # noqa: S311 - filler
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20260825
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).randbytes(200 * 1024)
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payload = factory.make_bundle(spec)
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assert len(payload) > fmt.CHUNK_SIZE + fmt.ABYTES + fmt.DIGEST_OFFSET
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opened = _open(reader, work_dir, payload)
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extracted = opened.extracted_dir / 'artifacts' / 'prediction_model' / 'model.pkl'
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assert extracted.read_bytes() == spec.files['artifacts/prediction_model/model.pkl']
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# ------------------------------------------------------------------- gate 4
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@pytest.mark.parametrize(
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('spec_kwargs', 'match'),
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[
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({'bomb_bytes': 40 * 1024 * 1024}, 'compression ratio'),
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({'traversal_entry': 'artifacts/../../etc/passwd'}, 'escaping'),
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({'absolute_entry': '/etc/passwd'}, 'absolute'),
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({'symlinks': {'artifacts/link': '/etc/passwd'}}, 'symbolic link'),
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],
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)
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def test_gate_4_rejects_hostile_central_directories(work_dir, reader, spec_kwargs, match):
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payload = factory.make_bundle(factory.ZipSpec(**spec_kwargs))
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with pytest.raises(BundleGateError, match=match) as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 4
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assert error.value.step is ImportStep.ARCHIVE_INSPECTION
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assert _extracted_files(work_dir / 'extract') == []
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assert not (work_dir / 'extract').exists()
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def test_gate_4_rejects_too_many_entries(work_dir):
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limited = BundleReader(BundleLimits(max_entries=3))
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payload = factory.make_bundle()
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with pytest.raises(BundleGateError, match='entries') as error:
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_open(limited, work_dir, payload)
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assert error.value.gate == 4
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def test_gate_4_rejects_an_oversized_uncompressed_total(work_dir):
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limited = BundleReader(BundleLimits(max_uncompressed_bytes=64))
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payload = factory.make_bundle()
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with pytest.raises(BundleGateError, match='uncompressed') as error:
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_open(limited, work_dir, payload)
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assert error.value.gate == 4
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def test_gate_4_rejects_content_that_is_not_an_archive(work_dir, reader):
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payload = factory.encrypt_archive(b'not a zip at all')
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with pytest.raises(BundleGateError, match='readable archive') as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 4
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def test_gate_4_rejects_an_empty_archive(work_dir, reader):
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payload = factory.make_bundle(factory.ZipSpec(files={}, include_metadata=False))
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with pytest.raises(BundleGateError, match='archive is empty') as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 4
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def test_gate_4_rejects_an_entry_that_is_neither_a_file_nor_a_directory(work_dir, reader):
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"""A FIFO's mode bits are neither a symlink's, a regular file's, nor a directory's."""
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payload = factory.make_bundle(
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factory.ZipSpec(special_mode_entries={'artifacts/pipe': stat.S_IFIFO | 0o644})
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)
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with pytest.raises(BundleGateError, match='not a regular file') as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 4
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# ------------------------------------------------------------------- gate 5
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def test_gate_5_refuses_a_pre_existing_extraction_root(work_dir, reader):
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(work_dir / 'extract').mkdir()
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payload = factory.make_bundle()
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with pytest.raises(BundleGateError, match='already exists') as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 5
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assert error.value.step is ImportStep.EXTRACTION
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def test_gate_5_extraction_writes_plain_files(work_dir, reader):
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opened = _open(reader, work_dir, factory.make_bundle())
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for path in opened.extracted_dir.rglob('*'):
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if path.is_file():
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assert path.stat().st_mode & 0o111 == 0, path
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def test_gate_5_extraction_creates_declared_directory_entries(work_dir, reader):
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"""The producer never writes directory entries, but a bundle from anywhere else might."""
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payload = factory.make_bundle(factory.ZipSpec(directory_entries=['artifacts/empty_dir']))
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opened = _open(reader, work_dir, payload)
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assert (opened.extracted_dir / 'artifacts' / 'empty_dir').is_dir()
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def test_gate_5_rejects_a_duplicate_entry_name(work_dir, reader):
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"""Two archive entries claiming the same path: gate 4 checks each name on its own and cannot
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see the collision, so extraction is where an overwrite is caught — and rejected."""
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payload = factory.make_bundle(factory.ZipSpec(repeat_file='artifacts/prediction_model/MLmodel'))
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with pytest.raises(BundleGateError, match='overwrite') as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 5
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assert not (work_dir / 'extract').exists()
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def test_gate_5_wraps_an_os_error_during_unpacking(work_dir, reader, monkeypatch):
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"""A write failure partway through extraction (e.g. disk full) is reported as unpacking
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trouble, not surfaced as the raw OSError."""
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payload = factory.make_bundle()
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def _raise_os_error(*_args, **_kwargs):
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raise OSError('disk full')
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monkeypatch.setattr('laborious.utils.bundle.reader.shutil.copyfileobj', _raise_os_error)
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with pytest.raises(BundleGateError, match='could not be unpacked') as error:
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_open(reader, work_dir, payload)
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assert error.value.gate == 5
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assert not (work_dir / 'extract').exists()
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def test_extract_member_rechecks_containment_on_the_resolved_path(work_dir, reader):
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"""Gate 4 already rejects a traversal by name; extraction re-checks on the *resolved* path as
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a second, independent line of defense."""
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root = work_dir / 'root'
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root.mkdir()
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buffer = io.BytesIO()
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with zipfile.ZipFile(buffer, 'w') as archive:
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archive.writestr('safe.txt', b'hello')
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with zipfile.ZipFile(io.BytesIO(buffer.getvalue())) as archive:
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entry = archive.infolist()[0]
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with pytest.raises(BundleGateError, match='resolves outside') as error:
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reader._extract_member(archive, entry, root, work_dir / 'somewhere-else')
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assert error.value.gate == 5
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# ------------------------------------------------------------------- gate 6
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@pytest.mark.parametrize(
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('spec', 'match'),
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[
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(factory.ZipSpec(include_metadata=False), 'metadata document'),
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(
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factory.ZipSpec(
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document=factory.build_metadata_document(drop_top_level_key='parameters')
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),
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'parameters and metadata blocks',
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),
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(
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factory.ZipSpec(
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document=factory.build_metadata_document(drop_metadata_field='experiment_name')
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),
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'experiment_name',
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),
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(
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factory.ZipSpec(
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document=factory.build_metadata_document(drop_parameter='target_variable')
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),
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'target_variable',
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),
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(
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factory.ZipSpec(
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document=factory.build_metadata_document(metadata={'experiment_name': 'x' * 51})
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),
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'experiment name',
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),
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(
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factory.ZipSpec(
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document=factory.build_metadata_document(metadata={'experiment_name': 'ab'})
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),
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'experiment name',
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),
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|
(
|
|
factory.ZipSpec(document={'metadata': 'not-a-dict', 'parameters': {}}),
|
|
'not objects',
|
|
),
|
|
],
|
|
)
|
|
def test_gate_6_rejects_a_malformed_metadata_document(work_dir, reader, spec, match):
|
|
payload = factory.make_bundle(spec)
|
|
|
|
with pytest.raises(BundleGateError, match=match) as error:
|
|
_open(reader, work_dir, payload)
|
|
|
|
assert error.value.gate == 6
|
|
assert error.value.step is ImportStep.STRUCTURE_VALIDATION
|
|
assert not (work_dir / 'extract').exists()
|
|
|
|
|
|
def test_gate_6_rejects_unreadable_metadata_json(work_dir, reader):
|
|
spec = factory.ZipSpec(include_metadata=False)
|
|
spec.extra_files['metadata.json'] = b'{not json'
|
|
payload = factory.make_bundle(spec)
|
|
|
|
with pytest.raises(BundleGateError, match='readable JSON') as error:
|
|
_open(reader, work_dir, payload)
|
|
|
|
assert error.value.gate == 6
|
|
|
|
|
|
def test_gate_6_rejects_a_missing_artifacts_directory(work_dir, reader):
|
|
spec = factory.ZipSpec(files={})
|
|
payload = factory.make_bundle(spec)
|
|
|
|
with pytest.raises(BundleGateError, match='artifacts directory') as error:
|
|
_open(reader, work_dir, payload)
|
|
|
|
assert error.value.gate == 6
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
('dropped', 'match'),
|
|
[
|
|
('artifacts/data_model/MLmodel', 'data_model artifacts are incomplete'),
|
|
('artifacts/prediction_model/model.pkl', 'prediction_model artifacts are incomplete'),
|
|
],
|
|
)
|
|
def test_gate_6_rejects_an_incomplete_model_directory(work_dir, reader, dropped, match):
|
|
spec = factory.ZipSpec()
|
|
spec.files.pop(dropped)
|
|
payload = factory.make_bundle(spec)
|
|
|
|
with pytest.raises(BundleGateError, match=match) as error:
|
|
_open(reader, work_dir, payload)
|
|
|
|
assert error.value.gate == 6
|
|
|
|
|
|
def test_gate_6_rejects_a_bundle_without_data_model(work_dir, reader):
|
|
spec = factory.ZipSpec()
|
|
for name in list(spec.files):
|
|
if name.startswith('artifacts/data_model/'):
|
|
spec.files.pop(name)
|
|
payload = factory.make_bundle(spec)
|
|
|
|
with pytest.raises(BundleGateError, match='no data_model artifacts') as error:
|
|
_open(reader, work_dir, payload)
|
|
|
|
assert error.value.gate == 6
|
|
|
|
|
|
# ------------------------------------------------------------------- gate 7
|
|
|
|
|
|
@pytest.mark.parametrize('name', ['artifacts/run.sh', 'artifacts/tool.bin', 'artifacts/mod.so'])
|
|
def test_gate_7_rejects_content_a_model_export_should_not_carry(work_dir, reader, name):
|
|
spec = factory.ZipSpec()
|
|
spec.extra_files[name] = b'#!/bin/sh\n'
|
|
payload = factory.make_bundle(spec)
|
|
|
|
with pytest.raises(BundleGateError, match='should not carry') as error:
|
|
_open(reader, work_dir, payload)
|
|
|
|
assert error.value.gate == 7
|
|
assert error.value.step is ImportStep.CONTENT_POLICY
|
|
assert not (work_dir / 'extract').exists()
|
|
|
|
|
|
def test_gate_7_rejects_a_non_regular_file_left_in_the_tree(work_dir, reader):
|
|
"""Extraction itself only ever writes plain files and directories; this is the check that
|
|
would catch anything else showing up in the tree by some other means."""
|
|
root = work_dir / 'weird_root'
|
|
root.mkdir()
|
|
os.mkfifo(root / 'pipe')
|
|
|
|
with pytest.raises(BundleGateError, match='not a file') as error:
|
|
reader._gate_7_content_policy(root)
|
|
|
|
assert error.value.gate == 7
|
|
|
|
|
|
# ------------------------------------------------------------------ ordering
|
|
|
|
|
|
def test_the_earlier_gate_wins(work_dir, reader):
|
|
"""A bundle that would fail gate 4 and gate 6 must report gate 4, having extracted nothing."""
|
|
spec = factory.ZipSpec(
|
|
traversal_entry='artifacts/../escape.csv',
|
|
document=factory.build_metadata_document(drop_parameter='target_variable'),
|
|
)
|
|
payload = factory.make_bundle(spec)
|
|
|
|
with pytest.raises(BundleGateError) as error:
|
|
_open(reader, work_dir, payload)
|
|
|
|
assert error.value.gate == 4
|
|
assert _extracted_files(work_dir / 'extract') == []
|
|
|
|
|
|
def test_header_is_checked_before_the_password(work_dir, reader):
|
|
"""A bundle with a bad header and a wrong password reports the header, not the password."""
|
|
payload = factory.make_bundle(magic=b'NOTSIENT')
|
|
|
|
with pytest.raises(BundleGateError) as error:
|
|
_open(reader, work_dir, payload, password='Nope1!Nope1!')
|
|
|
|
assert error.value.gate == 2
|