package dhcp4

import (
	"net"
	"strings"
	"testing"
)

func TestDescribe(t *testing.T) {
	p := NewRequest(Discover, net.HardwareAddr{0xaa, 0, 0, 0, 0, 1}, 0x1234)
	p.Set(OptParamRequest, []byte{1, 3, 6, 224})
	p.Set(OptClientID, []byte{1, 0xaa, 0, 0, 0, 0, 1})
	p.Set(OptLeaseTime, U32(5400))
	p.Set(81, []byte{0x05, 0, 0, 6, 'l', 'a', 'p', 't', 'o', 'p', 0})
	fields, opts := p.Describe()
	got := map[string]string{}
	for _, f := range append(fields, opts...) {
		got[f.Name] = f.Value
	}
	for name, want := range map[string]string{
		"transaction ID":          "0x00001234",
		"message-type":            "DHCPDISCOVER",
		"parameter-request-list":  "subnet-mask (1), routers (3), domain-name-servers (6), option-224 (224)",
		"client-identifier":       "01:aa:00:00:00:00:01 (type 1: the MAC address aa:00:00:00:00:01)",
		"lease-time":              "5400 s (1h30m)",
		"client-fqdn":             "laptop (server updates the A record)",
		"client hardware address": "aa:00:00:00:00:01",
	} {
		if !strings.EqualFold(got[name], want) {
			t.Errorf("%s: %q, want %q", name, got[name], want)
		}
	}
	if shortDuration(7*24*3600e9) != "7d" || shortDuration(90e9) != "1m30s" || shortDuration(43200e9) != "12h" {
		t.Error("shortDuration")
	}
}