"""封面生成 — v1.6.2 起免费，不扣积分"""

from __future__ import annotations


class TestGenerationCoverFree:
    def test_ai_cover_returns_zero_cost(self):
        from packages.domain.points_rules import calculate_points_cost

        assert calculate_points_cost("ai_cover", is_member=False, quantity=1) == 0
        assert calculate_points_cost("ai_cover", is_member=True, quantity=10) == 0

    def test_no_points_gate_decorator(self):
        from app.api.routes.generation_cover import generate_cover

        assert not hasattr(generate_cover, "__wrapped__")

    def test_endpoint_has_no_points_logic(self):
        import inspect

        from app.api.routes import generation_cover as mod

        src = inspect.getsource(mod)
        assert "PointsService" not in src
        assert "deduct_points" not in src