279 lines
8.1 KiB
Go
279 lines
8.1 KiB
Go
// Copyright (c) 2013-2016 The btcsuite developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package wire
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import (
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"bytes"
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"io"
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"net"
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"reflect"
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"testing"
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"time"
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"github.com/davecgh/go-spew/spew"
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)
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// TestNetAddress tests the NetAddress API.
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func TestNetAddress(t *testing.T) {
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ip := net.ParseIP("127.0.0.1")
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port := 8333
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// Test NewNetAddress.
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na := NewNetAddress(&net.TCPAddr{IP: ip, Port: port}, 0)
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// Ensure we get the same ip, port, and services back out.
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if !na.IP.Equal(ip) {
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t.Errorf("NetNetAddress: wrong ip - got %v, want %v", na.IP, ip)
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}
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if na.Port != uint16(port) {
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t.Errorf("NetNetAddress: wrong port - got %v, want %v", na.Port,
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port)
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}
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if na.Services != 0 {
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t.Errorf("NetNetAddress: wrong services - got %v, want %v",
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na.Services, 0)
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}
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if na.HasService(SFNodeNetwork) {
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t.Errorf("HasService: SFNodeNetwork service is set")
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}
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// Ensure adding the full service node flag works.
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na.AddService(SFNodeNetwork)
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if na.Services != SFNodeNetwork {
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t.Errorf("AddService: wrong services - got %v, want %v",
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na.Services, SFNodeNetwork)
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}
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if !na.HasService(SFNodeNetwork) {
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t.Errorf("HasService: SFNodeNetwork service not set")
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}
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// Ensure max payload is expected value for latest protocol version.
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pver := ProtocolVersion
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wantPayload := uint32(30)
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maxPayload := maxNetAddressPayload(ProtocolVersion)
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if maxPayload != wantPayload {
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t.Errorf("maxNetAddressPayload: wrong max payload length for "+
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"protocol version %d - got %v, want %v", pver,
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maxPayload, wantPayload)
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}
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// Protocol version before NetAddressTimeVersion when timestamp was
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// added. Ensure max payload is expected value for it.
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pver = NetAddressTimeVersion - 1
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wantPayload = 26
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maxPayload = maxNetAddressPayload(pver)
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if maxPayload != wantPayload {
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t.Errorf("maxNetAddressPayload: wrong max payload length for "+
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"protocol version %d - got %v, want %v", pver,
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maxPayload, wantPayload)
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}
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}
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// TestNetAddressWire tests the NetAddress wire encode and decode for various
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// protocol versions and timestamp flag combinations.
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func TestNetAddressWire(t *testing.T) {
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// baseNetAddr is used in the various tests as a baseline NetAddress.
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baseNetAddr := NetAddress{
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Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
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Services: SFNodeNetwork,
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IP: net.ParseIP("127.0.0.1"),
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Port: 8333,
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}
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// baseNetAddrNoTS is baseNetAddr with a zero value for the timestamp.
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baseNetAddrNoTS := baseNetAddr
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baseNetAddrNoTS.Timestamp = time.Time{}
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// baseNetAddrEncoded is the wire encoded bytes of baseNetAddr.
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baseNetAddrEncoded := []byte{
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0x29, 0xab, 0x5f, 0x49, // Timestamp
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
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0x20, 0x8d, // Port 8333 in big-endian
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}
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// baseNetAddrNoTSEncoded is the wire encoded bytes of baseNetAddrNoTS.
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baseNetAddrNoTSEncoded := []byte{
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// No timestamp
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0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
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0x20, 0x8d, // Port 8333 in big-endian
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}
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tests := []struct {
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in NetAddress // NetAddress to encode
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out NetAddress // Expected decoded NetAddress
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ts bool // Include timestamp?
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buf []byte // Wire encoding
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pver uint32 // Protocol version for wire encoding
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}{
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// Latest protocol version without ts flag.
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{
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baseNetAddr,
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baseNetAddrNoTS,
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false,
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baseNetAddrNoTSEncoded,
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ProtocolVersion,
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},
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// Latest protocol version with ts flag.
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{
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baseNetAddr,
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baseNetAddr,
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true,
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baseNetAddrEncoded,
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ProtocolVersion,
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},
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// Protocol version NetAddressTimeVersion without ts flag.
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{
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baseNetAddr,
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baseNetAddrNoTS,
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false,
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baseNetAddrNoTSEncoded,
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NetAddressTimeVersion,
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},
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// Protocol version NetAddressTimeVersion with ts flag.
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{
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baseNetAddr,
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baseNetAddr,
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true,
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baseNetAddrEncoded,
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NetAddressTimeVersion,
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},
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// Protocol version NetAddressTimeVersion-1 without ts flag.
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{
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baseNetAddr,
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baseNetAddrNoTS,
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false,
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baseNetAddrNoTSEncoded,
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NetAddressTimeVersion - 1,
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},
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// Protocol version NetAddressTimeVersion-1 with timestamp.
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// Even though the timestamp flag is set, this shouldn't have a
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// timestamp since it is a protocol version before it was
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// added.
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{
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baseNetAddr,
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baseNetAddrNoTS,
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true,
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baseNetAddrNoTSEncoded,
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NetAddressTimeVersion - 1,
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},
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}
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t.Logf("Running %d tests", len(tests))
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for i, test := range tests {
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// Encode to wire format.
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var buf bytes.Buffer
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err := writeNetAddress(&buf, test.pver, &test.in, test.ts)
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if err != nil {
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t.Errorf("writeNetAddress #%d error %v", i, err)
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continue
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}
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if !bytes.Equal(buf.Bytes(), test.buf) {
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t.Errorf("writeNetAddress #%d\n got: %s want: %s", i,
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spew.Sdump(buf.Bytes()), spew.Sdump(test.buf))
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continue
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}
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// Decode the message from wire format.
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var na NetAddress
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rbuf := bytes.NewReader(test.buf)
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err = readNetAddress(rbuf, test.pver, &na, test.ts)
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if err != nil {
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t.Errorf("readNetAddress #%d error %v", i, err)
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continue
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}
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if !reflect.DeepEqual(na, test.out) {
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t.Errorf("readNetAddress #%d\n got: %s want: %s", i,
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spew.Sdump(na), spew.Sdump(test.out))
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continue
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}
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}
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}
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// TestNetAddressWireErrors performs negative tests against wire encode and
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// decode NetAddress to confirm error paths work correctly.
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func TestNetAddressWireErrors(t *testing.T) {
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pver := ProtocolVersion
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pverNAT := NetAddressTimeVersion - 1
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// baseNetAddr is used in the various tests as a baseline NetAddress.
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baseNetAddr := NetAddress{
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Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
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Services: SFNodeNetwork,
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IP: net.ParseIP("127.0.0.1"),
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Port: 8333,
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}
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tests := []struct {
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in *NetAddress // Value to encode
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buf []byte // Wire encoding
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pver uint32 // Protocol version for wire encoding
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ts bool // Include timestamp flag
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max int // Max size of fixed buffer to induce errors
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writeErr error // Expected write error
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readErr error // Expected read error
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}{
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// Latest protocol version with timestamp and intentional
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// read/write errors.
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// Force errors on timestamp.
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{&baseNetAddr, []byte{}, pver, true, 0, io.ErrShortWrite, io.EOF},
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// Force errors on services.
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{&baseNetAddr, []byte{}, pver, true, 4, io.ErrShortWrite, io.EOF},
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// Force errors on ip.
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{&baseNetAddr, []byte{}, pver, true, 12, io.ErrShortWrite, io.EOF},
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// Force errors on port.
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{&baseNetAddr, []byte{}, pver, true, 28, io.ErrShortWrite, io.EOF},
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// Latest protocol version with no timestamp and intentional
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// read/write errors.
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// Force errors on services.
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{&baseNetAddr, []byte{}, pver, false, 0, io.ErrShortWrite, io.EOF},
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// Force errors on ip.
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{&baseNetAddr, []byte{}, pver, false, 8, io.ErrShortWrite, io.EOF},
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// Force errors on port.
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{&baseNetAddr, []byte{}, pver, false, 24, io.ErrShortWrite, io.EOF},
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// Protocol version before NetAddressTimeVersion with timestamp
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// flag set (should not have timestamp due to old protocol
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// version) and intentional read/write errors.
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// Force errors on services.
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{&baseNetAddr, []byte{}, pverNAT, true, 0, io.ErrShortWrite, io.EOF},
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// Force errors on ip.
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{&baseNetAddr, []byte{}, pverNAT, true, 8, io.ErrShortWrite, io.EOF},
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// Force errors on port.
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{&baseNetAddr, []byte{}, pverNAT, true, 24, io.ErrShortWrite, io.EOF},
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}
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t.Logf("Running %d tests", len(tests))
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for i, test := range tests {
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// Encode to wire format.
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w := newFixedWriter(test.max)
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err := writeNetAddress(w, test.pver, test.in, test.ts)
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if err != test.writeErr {
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t.Errorf("writeNetAddress #%d wrong error got: %v, want: %v",
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i, err, test.writeErr)
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continue
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}
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// Decode from wire format.
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var na NetAddress
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r := newFixedReader(test.max, test.buf)
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err = readNetAddress(r, test.pver, &na, test.ts)
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if err != test.readErr {
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t.Errorf("readNetAddress #%d wrong error got: %v, want: %v",
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i, err, test.readErr)
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continue
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}
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}
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}
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