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* dnstest: add multirecorder This adds a new recorder that captures all messages written to it. This can be useful when, for instance, testing AXFR which can write muliple messages back to the client. * docs
42 lines
987 B
Go
42 lines
987 B
Go
package dnstest
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import (
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"time"
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"github.com/miekg/dns"
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)
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// MultiRecorder is a type of ResponseWriter that captures all messages written to it.
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type MultiRecorder struct {
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Len int
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Msgs []*dns.Msg
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Start time.Time
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dns.ResponseWriter
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}
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// NewMultiRecorder makes and returns a new MultiRecorder.
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func NewMultiRecorder(w dns.ResponseWriter) *MultiRecorder {
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return &MultiRecorder{
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ResponseWriter: w,
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Msgs: make([]*dns.Msg, 0),
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Start: time.Now(),
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}
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}
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// WriteMsg records the message and its length written to it and call the
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// underlying ResponseWriter's WriteMsg method.
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func (r *MultiRecorder) WriteMsg(res *dns.Msg) error {
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r.Len += res.Len()
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r.Msgs = append(r.Msgs, res)
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return r.ResponseWriter.WriteMsg(res)
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}
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// Write is a wrapper that records the length of the messages that get written to it.
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func (r *MultiRecorder) Write(buf []byte) (int, error) {
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n, err := r.ResponseWriter.Write(buf)
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if err == nil {
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r.Len += n
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}
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return n, err
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}
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