Files
OBLITERATUS/tests/test_ci_policy.py
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3.9 KiB
Python

"""Repository contracts for immutable CI execution dependencies."""
from __future__ import annotations
import json
import re
from pathlib import Path
ROOT = Path(__file__).parents[1]
WORKFLOW = ROOT / ".github" / "workflows" / "ci.yml"
MANIFEST = ROOT / "ci" / "digests.txt"
ACTION_REF = re.compile(
r"^\s*uses:\s*([A-Za-z0-9_.-]+/[A-Za-z0-9_.-]+)@([0-9a-f]{40})\s+#\s+(\S+)\s*$",
)
def _manifest_entries() -> dict[tuple[str, str], tuple[str, str]]:
entries: dict[tuple[str, str], tuple[str, str]] = {}
for line in MANIFEST.read_text(encoding="utf-8").splitlines():
if not line or line.startswith("#"):
continue
kind, name, pin, version, _date, _rationale = line.split(maxsplit=5)
entries[(kind, name)] = (pin, version)
return entries
def test_every_external_action_is_sha_pinned_and_manifested():
entries = _manifest_entries()
uses_lines = [
line for line in WORKFLOW.read_text(encoding="utf-8").splitlines()
if "uses:" in line and "uses: ./" not in line
]
assert uses_lines
for line in uses_lines:
match = ACTION_REF.match(line)
assert match is not None, f"external action is not SHA-pinned with a version comment: {line}"
name, pin, version = match.groups()
assert entries[("action", name)] == (pin, version)
def test_actionlint_version_and_checksum_match_manifest():
workflow = WORKFLOW.read_text(encoding="utf-8")
pin, version = _manifest_entries()[("tool", "rhysd/actionlint")]
assert f'ACTIONLINT_VERSION: "{version.removeprefix("v")}"' in workflow
assert f'ACTIONLINT_SHA256: "{pin.removeprefix("sha256:")}"' in workflow
def test_uv_and_gitleaks_pins_match_manifest():
workflow = WORKFLOW.read_text(encoding="utf-8")
entries = _manifest_entries()
uv_pin, uv_version = entries[("tool", "astral-sh/uv")]
gitleaks_pin, gitleaks_version = entries[("tool", "gitleaks/gitleaks")]
assert uv_pin == f"pypi:{uv_version.removeprefix('v')}"
assert f'UV_VERSION: "{uv_version.removeprefix("v")}"' in workflow
assert f'GITLEAKS_VERSION: "{gitleaks_version.removeprefix("v")}"' in workflow
assert f'GITLEAKS_SHA256: "{gitleaks_pin.removeprefix("sha256:")}"' in workflow
def test_ci_requires_the_committed_lock_and_strict_policy_gate():
workflow = WORKFLOW.read_text(encoding="utf-8")
assert "uv lock --check" in workflow
assert "uv sync --locked" in workflow
assert "scripts/check_supply_chain_policy.py audit" in workflow
assert "scripts/check_supply_chain_policy.py secrets" in workflow
assert "scripts/check_supply_chain_policy.py licenses" in workflow
supply_chain_job = workflow.split(" supply-chain:\n", maxsplit=1)[1]
assert "|| true" not in supply_chain_job
def test_ci_enforces_exact_base_module_regression_and_risk_mapping():
workflow = WORKFLOW.read_text(encoding="utf-8")
assert "Generate exact-base coverage for module regression comparison" in workflow
assert 'git worktree add --detach "$BASE_WORKTREE" "$COVERAGE_BASE"' in workflow
assert "--touched-module-no-regression" in workflow
assert "--base-report test-results/base-coverage-py3.12.json" in workflow
assert "scripts/check_test_risk_map.py" in workflow
def test_ci_repository_coverage_floors_match_quality_policy():
workflow = WORKFLOW.read_text(encoding="utf-8")
policy = json.loads(
(ROOT / "ci" / "test-quality-policy.json").read_text(encoding="utf-8"),
)
assert f"--min-line {policy['minimums']['repository_statement']:g}" in workflow
assert f"--min-branch {policy['minimums']['repository_branch']:g}" in workflow
def test_ci_retains_normalized_test_and_quality_trends_for_ninety_days():
workflow = WORKFLOW.read_text(encoding="utf-8")
assert "test-trend-py${{ matrix.python-version }}.json" in workflow
assert "quality-trend-py3.12.json" in workflow
assert workflow.count("retention-days: 90") >= 2