65 lines
1.8 KiB
Go
65 lines
1.8 KiB
Go
package peer_protocol
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import (
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"bufio"
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"bytes"
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"net"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/anacrolix/dht/v2/krpc"
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"github.com/anacrolix/torrent/bencode"
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)
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func TestUnmarshalPex(t *testing.T) {
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var pem PexMsg
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err := bencode.Unmarshal([]byte("d5:added12:\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0ce"), &pem)
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require.NoError(t, err)
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require.EqualValues(t, 2, len(pem.Added))
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require.EqualValues(t, 1286, pem.Added[0].Port)
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require.EqualValues(t, 0x100*0xb+0xc, pem.Added[1].Port)
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}
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func TestEmptyPexMsg(t *testing.T) {
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pm := PexMsg{}
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b, err := bencode.Marshal(pm)
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t.Logf("%q", b)
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require.NoError(t, err)
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require.NoError(t, bencode.Unmarshal(b, &pm))
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}
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func TestMarshalPexMessage(t *testing.T) {
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addr := krpc.NodeAddr{IP: net.IP{127, 0, 0, 1}, Port: 0x55aa}
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f := PexPrefersEncryption | PexOutgoingConn
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pm := new(PexMsg)
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pm.Added = append(pm.Added, addr)
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pm.AddedFlags = append(pm.AddedFlags, f)
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_, err := bencode.Marshal(pm)
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require.NoError(t, err)
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pexExtendedId := ExtensionNumber(7)
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msg := pm.Message(pexExtendedId)
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expected := []byte("\x00\x00\x00\x4c\x14\x07d5:added6:\x7f\x00\x00\x01\x55\xaa7:added.f1:\x116:added60:8:added6.f0:7:dropped0:8:dropped60:e")
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b, err := msg.MarshalBinary()
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require.NoError(t, err)
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require.EqualValues(t, b, expected)
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msg = Message{}
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dec := Decoder{
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R: bufio.NewReader(bytes.NewBuffer(b)),
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MaxLength: 128,
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}
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pmOut := PexMsg{}
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err = dec.Decode(&msg)
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require.NoError(t, err)
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require.EqualValues(t, Extended, msg.Type)
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require.EqualValues(t, pexExtendedId, msg.ExtendedID)
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err = bencode.Unmarshal(msg.ExtendedPayload, &pmOut)
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require.NoError(t, err)
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require.EqualValues(t, len(pm.Added), len(pmOut.Added))
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require.EqualValues(t, pm.Added[0].IP, pmOut.Added[0].IP)
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require.EqualValues(t, pm.Added[0].Port, pmOut.Added[0].Port)
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}
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