def test_nvl_series():
    test_list = [0, 1, None, pd.np.NaN]
    test_series = pd.Series(test_list)
    nvl(test_series, 10)
def test_nvl_series():
    test_list = [0, 1, None, pd.np.NaN]
    test_series = pd.Series(test_list)
    nvl(test_series, 10)