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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package packet
import (
"bytes"
"encoding/hex"
"io"
"testing"
)
// Test packet.Read error handling in OpaquePacket.Parse,
// which attempts to re-read an OpaquePacket as a supported
// Packet type.
func TestOpaqueParseReason(t *testing.T) {
buf, err := hex.DecodeString(UnsupportedKeyHex)
if err != nil {
t.Fatal(err)
}
or := NewOpaqueReader(bytes.NewBuffer(buf))
count := 0
badPackets := 0
var uid *UserId
for {
op, err := or.Next()
if err == io.EOF {
break
} else if err != nil {
t.Errorf("#%d: opaque read error: %v", count, err)
break
}
// try to parse opaque packet
p, err := op.Parse()
switch pkt := p.(type) {
case *UserId:
uid = pkt
case *OpaquePacket:
// If an OpaquePacket can't re-parse, packet.Read
// certainly had its reasons.
if pkt.Reason == nil {
t.Errorf("#%d: opaque packet, no reason", count)
} else {
badPackets++
}
}
count++
}
const expectedBad = 3
// Test post-conditions, make sure we actually parsed packets as expected.
if badPackets != expectedBad {
t.Errorf("unexpected # unparseable packets: %d (want %d)", badPackets, expectedBad)
}
if uid == nil {
t.Errorf("failed to find expected UID in unsupported keyring")
} else if uid.Id != "Armin M. Warda <warda@nephilim.ruhr.de>" {
t.Errorf("unexpected UID: %v", uid.Id)
}
}
// This key material has public key and signature packet versions modified to
// an unsupported value (1), so that trying to parse the OpaquePacket to
// a typed packet will get an error. It also contains a GnuPG trust packet.
// (Created with: od -An -t x1 pubring.gpg | xargs | sed 's/ //g')
const UnsupportedKeyHex = `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`
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