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roboco/tests/unit/conventions/test_scan.py
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"""Repo auto-scan + scaffold-draft renderer."""
from __future__ import annotations
from typing import TYPE_CHECKING
from roboco.conventions.scan import derive_from_scan, render_yaml
from roboco.foundation.policy.conventions.models import ConventionsStandard
if TYPE_CHECKING:
from pathlib import Path
def _sample_repo(root: Path) -> None:
(root / "app" / "routers").mkdir(parents=True)
(root / "app" / "models").mkdir(parents=True)
(root / "app" / "services").mkdir(parents=True)
(root / "app" / "routers" / "users.py").write_text("x = 1\n")
(root / "app" / "models" / "user.py").write_text("y = 2\n")
(root / "app" / "services" / "logic.py").write_text("z = 3\n")
def test_scan_derives_router_module_forbidding_models(tmp_path: Path) -> None:
_sample_repo(tmp_path)
std = derive_from_scan(tmp_path)
routers = [m for m in std.modules if m.path == "app/routers"]
assert routers and "model" in routers[0].forbidden
def test_scan_detects_python_language(tmp_path: Path) -> None:
_sample_repo(tmp_path)
assert "python" in derive_from_scan(tmp_path).languages
def test_scan_seeds_builtin_rules(tmp_path: Path) -> None:
_sample_repo(tmp_path)
std = derive_from_scan(tmp_path)
assert std.rules["no_models_in_routers"].level == "block"
assert std.rules["no_inline_comments"].level == "warn"
def test_scan_ignores_vendored_directories(tmp_path: Path) -> None:
(tmp_path / "node_modules" / "pkg" / "routers").mkdir(parents=True)
(tmp_path / ".venv" / "lib" / "models").mkdir(parents=True)
std = derive_from_scan(tmp_path)
assert std.modules == []
def test_scan_lifts_claude_md_imperative_into_custom_rule(tmp_path: Path) -> None:
_sample_repo(tmp_path)
(tmp_path / "CLAUDE.md").write_text("- Never use `print()`; use the logger.\n")
custom = derive_from_scan(tmp_path).custom
assert custom
assert custom[0].level == "warn"
assert "print" in custom[0].pattern
def test_render_yaml_round_trips_through_parse(tmp_path: Path) -> None:
_sample_repo(tmp_path)
(tmp_path / "CLAUDE.md").write_text("Do not call `eval()` anywhere.\n")
std = derive_from_scan(tmp_path)
reparsed = ConventionsStandard.parse_yaml(render_yaml(std))
assert reparsed == std
def test_render_yaml_round_trips_empty_standard() -> None:
std = ConventionsStandard()
assert ConventionsStandard.parse_yaml(render_yaml(std)) == std