import json
import sys
import unittest
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent))
from generate_wasm_simulation_release_gate_t7 import OUTPUT, digest, generate


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


class WasmSimulationReleaseGateT7Tests(unittest.TestCase):
    def test_contract(self):
        report = json.loads((ROOT / OUTPUT).read_text(encoding="utf-8"))
        self.assertEqual(report["schema"], "wasm-simulation-release-gate-t7.v1")
        self.assertEqual(report["task_id"], "T7-RELEASE-GATE-01")
        self.assertEqual(report["status"], "blocked")
        self.assertFalse(report["candidate_eligible"])
        self.assertEqual(report["release_action"], "STOP_RELEASE")
        self.assertEqual(report["scope"], "simulation_track_read_only_audit")
        self.assertEqual(report["gate_mutation"], "forbidden")
        self.assertEqual(len(report["blockers"]), 8)
        self.assertEqual(len(report["failure_samples"]), 3)
        self.assertTrue(all(item["status"] == "verified" for item in report["checks"].values()))

    def test_self_hash_and_determinism(self):
        before = (ROOT / OUTPUT).read_bytes()
        report = generate(ROOT, ROOT / OUTPUT)
        self.assertEqual(before, (ROOT / OUTPUT).read_bytes())
        self.assertEqual(report["report_sha256"], digest({key: value for key, value in report.items() if key != "report_sha256"}))


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