import json
import unittest
from pathlib import Path

import generate_coupled_kinematics_report


ROOT = Path(__file__).resolve().parents[1]


class CoupledKinematicsReportTests(unittest.TestCase):
    def test_report_contract(self):
        report = json.loads((ROOT / "coverage/coupled-kinematics.report.json").read_text(encoding="utf-8"))
        self.assertEqual(report["schema"], "coupled-kinematics-report.v1")
        self.assertEqual(report["implementation_status"], "verified")
        self.assertEqual(report["native_wasm"]["status"], "passed")
        self.assertTrue(report["samples"]["byte_identical_json"])
        self.assertTrue(report["corexy_entry_distinction"]["distinct"])
        self.assertEqual(report["closure"]["official_oracle"], "blocked")
        self.assertEqual(set(report["families"]), {"corexy", "rose", "maxkins", "rotatekins"})
        self.assertIn("rotatekins", report["configuration_candidates"])
        self.assertIn("workspace_derived_fixture", report["configuration_candidate_origin"]["rotatekins"])

    def test_report_is_deterministic(self):
        first = ROOT / "coverage/.coupled-one.json"
        second = ROOT / "coverage/.coupled-two.json"
        try:
            self.assertEqual(
                generate_coupled_kinematics_report.generate(ROOT, first),
                generate_coupled_kinematics_report.generate(ROOT, second),
            )
        finally:
            first.unlink(missing_ok=True)
            second.unlink(missing_ok=True)


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