"""Tests for config helpers."""

from __future__ import annotations

from app import config
from app.config import _float_env, _int_env


def test_int_env_valid(monkeypatch) -> None:
    monkeypatch.setenv("TEST_INT", "42")
    assert _int_env("TEST_INT", 0) == 42


def test_int_env_invalid_falls_back(monkeypatch) -> None:
    monkeypatch.setenv("TEST_INT", "nope")
    assert _int_env("TEST_INT", 7) == 7


def test_float_env_valid(monkeypatch) -> None:
    monkeypatch.setenv("TEST_FLOAT", "2.5")
    assert _float_env("TEST_FLOAT", 0.0) == 2.5


def test_supported_extensions() -> None:
    assert ".jpg" in config.SUPPORTED_EXTENSIONS
    assert ".jpeg" in config.SUPPORTED_EXTENSIONS


def test_opacity_choices_percentages() -> None:
    assert all(choice.endswith("%") for choice in config.OPACITY_CHOICES)