"""Pure contract regression; no sockets or firewall access."""
import importlib.util
import pathlib
import unittest

spec = importlib.util.spec_from_file_location("fixture", pathlib.Path(__file__).with_name("linux-agent-fixture.py"))
fixture = importlib.util.module_from_spec(spec)
spec.loader.exec_module(fixture)


class AcknowledgementTest(unittest.TestCase):
    def test_exact_report_retry_has_stable_id_and_sequence_ack(self):
        report = {"telemetry_version": 2, "report_id": "report-123", "sequence": 17}
        expected = {"ok": True, "accepted": True, "report_id": "report-123", "sequence": 17}
        self.assertEqual(fixture.acknowledgement(report), expected)
        self.assertEqual(fixture.acknowledgement(dict(report)), expected)
        self.assertNotEqual(fixture.acknowledgement({**report, "sequence": 18}), expected)


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