from lib.mcp_client import auth_headers


def test_auth_headers_sets_key_and_user():
    h = auth_headers("k_test", "user-a@servicetitan.com")
    assert h["Authorization"] == "Bearer k_test"
    assert h["Arcade-User-ID"] == "user-a@servicetitan.com"


def test_auth_headers_distinct_users():
    a = auth_headers("k", "alice")
    b = auth_headers("k", "bob")
    assert a["Arcade-User-ID"] != b["Arcade-User-ID"]