"""AZ-326 AC-6 — `freshness_threshold_months` returns the documented values."""

from __future__ import annotations

import pytest

from gps_denied_onboard.components.c12_operator_tooling import (
    FRESHNESS_TABLE,
    SectorClassification,
    freshness_threshold_months,
)


class TestFreshnessTable:
    def test_active_conflict_is_one_month(self) -> None:
        # Act / Assert
        assert freshness_threshold_months(SectorClassification.ACTIVE_CONFLICT) == 1

    def test_stable_rear_is_twelve_months(self) -> None:
        # Act / Assert
        assert freshness_threshold_months(SectorClassification.STABLE_REAR) == 12

    def test_table_covers_every_enum_value(self) -> None:
        # Arrange
        enum_values = set(SectorClassification)
        # Assert
        assert set(FRESHNESS_TABLE.keys()) == enum_values

    def test_unknown_classification_raises(self) -> None:
        # Arrange — synthesise an unmapped value via a subclass to bypass the
        # enum check in production code (no other path can produce one).
        class _Bogus:
            value = "bogus"

            def __hash__(self) -> int:
                return hash("bogus")

            def __eq__(self, other: object) -> bool:
                return False

        # Act / Assert
        with pytest.raises(ValueError, match="unknown SectorClassification"):
            freshness_threshold_months(_Bogus())  # type: ignore[arg-type]