from openvpncertupdate import load_metadata, save_email, get_email

def test_load_empty(tmp_path):
    assert load_metadata(str(tmp_path)) == {}

def test_save_and_get(tmp_path):
    save_email(str(tmp_path), "alice", "alice@example.com")
    assert get_email(str(tmp_path), "alice") == "alice@example.com"

def test_update_existing(tmp_path):
    save_email(str(tmp_path), "alice", "old@example.com")
    save_email(str(tmp_path), "alice", "new@example.com")
    assert get_email(str(tmp_path), "alice") == "new@example.com"

def test_missing_returns_empty(tmp_path):
    assert get_email(str(tmp_path), "nobody") == ""