#!/usr/bin/env python3
"""Contract tests for the S8-04 minimal XYZ vertical report."""

from __future__ import annotations

import hashlib
import json
import sys
import unittest
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent))
import generate_minimal_xyz_vertical_s8_04


ROOT = Path(__file__).resolve().parents[1]
REPORT = ROOT / "coverage/minimal-xyz-vertical-s8-04.report.json"


class MinimalXYZVerticalS804Tests(unittest.TestCase):
    def test_contract(self) -> None:
        report = json.loads(REPORT.read_text(encoding="utf-8"))
        self.assertEqual(report["schema"], "minimal-xyz-vertical-s8-04-report.v1")
        self.assertEqual(report["status"], "verified")
        self.assertEqual(report["checks"]["startup_task_ready"]["status"], "verified")
        self.assertTrue(report["checks"]["checkpoint_recovery_parity"]["endpoint_equal"])
        self.assertEqual(report["checks"]["estop_recover"]["blocked_code"], "sim_io_estop")

    def test_self_hash(self) -> None:
        report = json.loads(REPORT.read_text(encoding="utf-8"))
        unsigned = {key: value for key, value in report.items() if key != "report_sha256"}
        self.assertEqual(report["report_sha256"], hashlib.sha256(generate_minimal_xyz_vertical_s8_04.canonical(unsigned).encode()).hexdigest())


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