import json
import sys
import unittest
from pathlib import Path

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

from generate_virtual_device_fault_matrix import OUTPUT, generate


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


class VirtualDeviceFaultMatrixTests(unittest.TestCase):
    def test_report_contract(self):
        report = json.loads((ROOT / OUTPUT).read_text(encoding="utf-8"))
        self.assertEqual(report["schema"], "virtual-device-fault-matrix.v1")
        self.assertEqual(report["task_id"], "M3-RT-03")
        self.assertEqual(report["implementation_status"], "verified")
        self.assertEqual(report["checks"]["replay_state_hash"]["status"], "verified")
        self.assertEqual(report["checks"]["repeat_determinism"]["status"], "verified")
        self.assertEqual(report["release_action"], "STOP_RELEASE")

    def test_generation_is_deterministic(self):
        before = (ROOT / OUTPUT).read_bytes()
        report = generate(ROOT, ROOT / OUTPUT)
        self.assertEqual(before, (ROOT / OUTPUT).read_bytes())
        self.assertEqual(report["report_sha256"], json.loads(before)["report_sha256"])


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