from __future__ import annotations

import re
import unittest
from pathlib import Path


ROOT = Path(__file__).resolve().parents[2]


class CiContractTests(unittest.TestCase):
    def test_ci_is_one_dependency_free_lite_gate(self) -> None:
        workflow = (ROOT / ".gitea/workflows/ci.yml").read_text(encoding="utf-8")
        jobs = workflow.split("jobs:", 1)[1]
        self.assertEqual(re.findall(r"(?m)^  ([a-z][a-z0-9_-]*):\s*$", jobs), ["lite"])
        self.assertIn("actions/checkout@524e936cd9e579adf00e308bfdf971aebc7de09e", workflow)
        self.assertIn("persist-credentials: false", workflow)
        self.assertIn("python3 tests/governance/test_module_spec.py", workflow)
        for forbidden in ("setup-python", "pip ", "curl ", "wget ", "docker pull"):
            self.assertNotIn(forbidden, workflow)


if __name__ == "__main__":
    unittest.main()