def test_can_validate_san(self, san_server: ServerConfig) -> None:
        """Ensure that urllib3 can validate SANs with IP addresses in them."""
        with HTTPSConnectionPool(
            san_server.host,
            san_server.port,
            cert_reqs="CERT_REQUIRED",
            ca_certs=san_server.ca_certs,
        ) as https_pool:
            r = https_pool.request("GET", "/")
            assert r.status == 200
Ensure that urllib3 can validate SANs with IP addresses in them.
test/with_dummyserver/test_https.py