'Make sure we stop if the openssl signature check fails.'

def test_openssl_failure(self):

    with ephemeral_dir() as venv_dir:
        resources = {'': '<a    href="certbot/">certbot/</a>', 'certbot/json': dumps({'releases': {'99.9.9': None}}), 'v99.9.9/letsencrypt-auto': build_le_auto(version='99.9.9'), 'v99.9.9/letsencrypt-auto.sig': signed('something    else')}
        with serving(resources) as base_url:
            copy(LE_AUTO_PATH, venv_dir)
            try:
                (out, err) = run_le_auto(venv_dir, base_url)
            except CalledProcessError as exc:
                eq_(exc.returncode, 1)
                self.assertTrue(("Couldn't    verify    signature    of    downloaded    certbot-auto." in exc.output))
            else:
                self.fail('Signature    check    on    certbot-auto    erroneously    passed.')
