anti
1ad15470a1
8 YAMLs for the email cohort per Appendix B: open-relay abuse, mass phishing, phishing-kit X-Mailer signatures, IDN/punycode URLs, sender masquerade, malicious attachment, BEC, encoded payload in body. EmailLifter (E.3.12) consumes by rule_id. test_email_rules.py: YAML-present + inert-in-v0 + xfail(strict) precision case gated on E.3.12.
55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
"""R0041-R0048 — email cohort.
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EmailLifter (E.3.12) consumes these by rule_id. The v0
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:class:`RuleEngine` cannot parse SMTP envelopes, walk attachment
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trees, or compose header / body / attachment signals — so these
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rules are inert under the regex matcher.
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Asserts each YAML compiles, none fire from the v0 engine, and a
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strict-xfail precision case that flips green when E.3.12 lands.
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"""
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from __future__ import annotations
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from collections.abc import Callable
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from pathlib import Path
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import pytest
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from decnet.ttp.impl.rule_engine import RuleEngine
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from decnet.ttp.store.base import RuleState
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from decnet.ttp.store.impl.filesystem import _parse_and_compile
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from tests.ttp.rule_precision.conftest import CorpusRow, make_event
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CohortLoader = Callable[[str], list[CorpusRow]]
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_RULE_IDS = [f"R{n:04d}" for n in range(41, 49)]
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@pytest.mark.parametrize("rule_id", _RULE_IDS)
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def test_rule_yaml_present(rule_id: str) -> None:
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path = Path("rules/ttp") / f"{rule_id}.yaml"
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assert path.exists(), f"missing YAML: {path}"
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compiled = _parse_and_compile(path, RuleState())
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assert compiled.rule_id == rule_id
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@pytest.mark.parametrize("rule_id", _RULE_IDS)
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async def test_lifter_bound_inert_in_v0(
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rule_id: str,
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precision_engine: RuleEngine,
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corpus_loader: CohortLoader,
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) -> None:
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fired: set[str] = set()
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for row in corpus_loader("email"):
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tags = await precision_engine.evaluate(make_event(row))
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fired.update(tag.rule_id for tag in tags)
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assert rule_id not in fired, (
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f"{rule_id} is lifter-bound but fired from the regex engine"
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)
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@pytest.mark.parametrize("rule_id", _RULE_IDS)
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@pytest.mark.xfail(strict=True, reason="impl phase E.3.12 (EmailLifter)")
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def test_email_rule_precision(rule_id: str) -> None:
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pytest.fail(f"{rule_id}: EmailLifter not yet shipped (E.3.12)")
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