"""download_backends — the single predicate that routes a platform to the
native ingester vs. gallery-dl. Pure, no DB."""

from backend.app.services.download_backends import (
    NATIVE_INGESTER_PLATFORMS,
    uses_native_ingester,
)


def test_patreon_is_native():
    assert uses_native_ingester("patreon") is True
    assert "patreon" in NATIVE_INGESTER_PLATFORMS


def test_gallery_dl_platforms_are_not_native():
    # The five platforms still served by gallery-dl must NOT route to the
    # native ingester — guards an accidental over-broad migration.
    for platform in ("subscribestar", "hentaifoundry", "discord", "pixiv", "deviantart"):
        assert uses_native_ingester(platform) is False


def test_unknown_platform_is_not_native():
    assert uses_native_ingester("nonsense") is False