basic_tests.py 文件源码

def frequency_test(generator, n_bits, sig_level=None, misc=None, n1=None):
    if n1 is None:
        n0, n1 = _calculate_n0_n1(generator, n_bits)
    else:
        n0 = n_bits - n1

    x1 = ((n0 - n1) ** 2) / n_bits
    p_value = erfc(sqrt(x1 / 2))

    if type(misc) is dict:
        misc.update(n0=n0, n1=n1, p_value=p_value)

    if sig_level is None:
        return x1
    else:
        limit = chi2.ppf(1 - sig_level, 1)
        if type(misc) is dict:
            misc.update(x=x1, limit=limit)
        return x1 <= limit