':py:obj:`sign` produces a signature for a string with embedded nulls.'

def test_sign_nulls(self):

    content = b('Watch    out!        \x00        Did    you    see    it?')
    priv_key = load_privatekey(FILETYPE_PEM, root_key_pem)
    good_cert = load_certificate(FILETYPE_PEM, root_cert_pem)
    sig = sign(priv_key, content, 'sha1')
    verify(good_cert, sig, content, 'sha1')
