from app.api.router import api_router


def test_project_signal_route_uses_single_sstc_canonical_endpoint() -> None:
    canonical = []
    legacy = []
    for route in api_router.routes:
        path = getattr(route, "path", "")
        methods = set(getattr(route, "methods", set()) or set())
        if path == "/projects/{project_id}/signals" and "GET" in methods:
            endpoint = getattr(route, "endpoint", None)
            canonical.append(
                (
                    getattr(endpoint, "__module__", ""),
                    getattr(endpoint, "__name__", ""),
                )
            )
        if path == "/projects/{project_id}/linked-signals" and "GET" in methods:
            legacy.append(path)

    assert canonical == [("app.api.sstc", "list_signals")]
    assert legacy == []