Method test

test/mitmproxy/test_dns.py:210–221

(what: str, min: int, max: int)

    def test_range(self):
        def test(what: str, min: int, max: int):
            req = tutils.tdnsreq()
            setattr(req, what, min)
            assert getattr(dns.DNSMessage.unpack(req.packed), what) == min
            setattr(req, what, min - 1)
            with pytest.raises(ValueError):
                req.packed
            setattr(req, what, max)
            assert getattr(dns.DNSMessage.unpack(req.packed), what) == max
            setattr(req, what, max + 1)
            with pytest.raises(ValueError):
                req.packed

        test("id", 0, 2**16 - 1)
        test("reserved", 0, 7)