import importlib


def test_all_services_use_the_same_override(monkeypatch):
    monkeypatch.setenv("SERVICE_API_KEY", "shared-token")
    for name in ["service_a", "service_b", "service_c", "service_d", "service_e"]:
        module = importlib.import_module(name)
        assert module.outbound_header()["Authorization"] == "Bearer shared-token"