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// Package dhcp6test provides utilities for testing DHCPv6 clients and servers.
package dhcp6test
import (
"github.com/mdlayher/dhcp6"
)
// Recorder is a dhcp6.ResponseSender which captures a response's message type and
// options, for inspection during tests.
type Recorder struct {
MessageType dhcp6.MessageType
TransactionID [3]byte
OptionsMap dhcp6.Options
Packet *dhcp6.Packet
}
// NewRecorder creates a new Recorder which uses the input transaction ID.
func NewRecorder(txID [3]byte) *Recorder {
return &Recorder{
TransactionID: txID,
OptionsMap: make(dhcp6.Options),
}
}
// Options returns the Options map of a Recorder.
func (r *Recorder) Options() dhcp6.Options {
return r.OptionsMap
}
// Send creates a new DHCPv6 packet using the input message type, and stores
// it for later inspection.
func (r *Recorder) Send(mt dhcp6.MessageType) (int, error) {
r.MessageType = mt
p := &dhcp6.Packet{
MessageType: mt,
TransactionID: r.TransactionID,
Options: r.OptionsMap,
}
r.Packet = p
b, err := p.MarshalBinary()
return len(b), err
}
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