from __future__ import annotations


def test_startup_hook_warms_the_string_snapshot_cache(monkeypatch) -> None:
    from apps.web import pipeline_backend
    from apps.web.vue3 import main

    calls = []
    monkeypatch.setattr(
        pipeline_backend,
        "load_string_snapshot",
        lambda root: calls.append(root),
    )

    main.warm_string_species_snapshot_cache()

    assert calls == [pipeline_backend.STRING_SPECIES_SNAPSHOT_ROOT]
    assert main.warm_string_species_snapshot_cache in main.app.router.on_startup


def test_string_snapshot_warm_failure_does_not_abort_web_startup(monkeypatch, capsys) -> None:
    from apps.web import pipeline_backend
    from apps.web.vue3 import main
    from gfa_core.string_species_registry import StringSnapshotError

    def fail_to_warm(_root):
        raise StringSnapshotError("snapshot unavailable", code="string_registry_unavailable")

    monkeypatch.setattr(pipeline_backend, "load_string_snapshot", fail_to_warm)

    main.warm_string_species_snapshot_cache()

    assert "STRING snapshot cache warm failed" in capsys.readouterr().out