package main

import (
	"encoding/binary"
	"testing"
)

func TestParseOpenAllowsEmptyToken(t *testing.T) {
	host := "example.com"
	p := make([]byte, 6+len(host))
	binary.BigEndian.PutUint16(p[0:2], 0)
	binary.BigEndian.PutUint16(p[2:4], uint16(len(host)))
	binary.BigEndian.PutUint16(p[4:6], 443)
	copy(p[6:], host)
	token, gotHost, port, err := parseOpen(p)
	if err != nil {
		t.Fatal(err)
	}
	if token != "" || gotHost != host || port != 443 {
		t.Fatalf("got token=%q host=%q port=%d", token, gotHost, port)
	}
}