Exemplo n.º 1
0
func (p *Peer) pushAddr() {
	msg := wire.NewMsgAddr()
	na, err := wire.NewNetAddress(p.conn.LocalAddr(), wire.SFNodeNetwork)
	if err != nil {
		return
	}

	msg.AddAddress(na)
	p.sendQ <- msg
}
Exemplo n.º 2
0
// TestPeerListeners tests that the peer listeners are called as expected.
func TestPeerListeners(t *testing.T) {
	verack := make(chan struct{}, 1)
	ok := make(chan wire.Message, 20)
	peerCfg := &peer.Config{
		Listeners: peer.MessageListeners{
			OnGetAddr: func(p *peer.Peer, msg *wire.MsgGetAddr) {
				ok <- msg
			},
			OnAddr: func(p *peer.Peer, msg *wire.MsgAddr) {
				ok <- msg
			},
			OnPing: func(p *peer.Peer, msg *wire.MsgPing) {
				ok <- msg
			},
			OnPong: func(p *peer.Peer, msg *wire.MsgPong) {
				ok <- msg
			},
			OnAlert: func(p *peer.Peer, msg *wire.MsgAlert) {
				ok <- msg
			},
			OnMemPool: func(p *peer.Peer, msg *wire.MsgMemPool) {
				ok <- msg
			},
			OnTx: func(p *peer.Peer, msg *wire.MsgTx) {
				ok <- msg
			},
			OnBlock: func(p *peer.Peer, msg *wire.MsgBlock, buf []byte) {
				ok <- msg
			},
			OnInv: func(p *peer.Peer, msg *wire.MsgInv) {
				ok <- msg
			},
			OnHeaders: func(p *peer.Peer, msg *wire.MsgHeaders) {
				ok <- msg
			},
			OnNotFound: func(p *peer.Peer, msg *wire.MsgNotFound) {
				ok <- msg
			},
			OnGetData: func(p *peer.Peer, msg *wire.MsgGetData) {
				ok <- msg
			},
			OnGetBlocks: func(p *peer.Peer, msg *wire.MsgGetBlocks) {
				ok <- msg
			},
			OnGetHeaders: func(p *peer.Peer, msg *wire.MsgGetHeaders) {
				ok <- msg
			},
			OnFilterAdd: func(p *peer.Peer, msg *wire.MsgFilterAdd) {
				ok <- msg
			},
			OnFilterClear: func(p *peer.Peer, msg *wire.MsgFilterClear) {
				ok <- msg
			},
			OnFilterLoad: func(p *peer.Peer, msg *wire.MsgFilterLoad) {
				ok <- msg
			},
			OnMerkleBlock: func(p *peer.Peer, msg *wire.MsgMerkleBlock) {
				ok <- msg
			},
			OnVersion: func(p *peer.Peer, msg *wire.MsgVersion) {
				ok <- msg
			},
			OnVerAck: func(p *peer.Peer, msg *wire.MsgVerAck) {
				verack <- struct{}{}
			},
			OnReject: func(p *peer.Peer, msg *wire.MsgReject) {
				ok <- msg
			},
		},
		UserAgentName:    "peer",
		UserAgentVersion: "1.0",
		ChainParams:      &chaincfg.MainNetParams,
		Services:         wire.SFNodeBloom,
	}
	inConn, outConn := pipe(
		&conn{raddr: "10.0.0.1:8333"},
		&conn{raddr: "10.0.0.2:8333"},
	)
	inPeer := peer.NewInboundPeer(peerCfg)
	if err := inPeer.Connect(inConn); err != nil {
		t.Errorf("TestPeerListeners: unexpected err %v\n", err)
		return
	}
	peerCfg.Listeners = peer.MessageListeners{
		OnVerAck: func(p *peer.Peer, msg *wire.MsgVerAck) {
			verack <- struct{}{}
		},
	}
	outPeer, err := peer.NewOutboundPeer(peerCfg, "10.0.0.1:8333")
	if err != nil {
		t.Errorf("NewOutboundPeer: unexpected err %v\n", err)
		return
	}
	if err := outPeer.Connect(outConn); err != nil {
		t.Errorf("TestPeerListeners: unexpected err %v\n", err)
		return
	}
	for i := 0; i < 2; i++ {
		select {
		case <-verack:
		case <-time.After(time.Second * 1):
			t.Errorf("TestPeerListeners: verack timeout\n")
			return
		}
	}

	tests := []struct {
		listener string
		msg      wire.Message
	}{
		{
			"OnGetAddr",
			wire.NewMsgGetAddr(),
		},
		{
			"OnAddr",
			wire.NewMsgAddr(),
		},
		{
			"OnPing",
			wire.NewMsgPing(42),
		},
		{
			"OnPong",
			wire.NewMsgPong(42),
		},
		{
			"OnAlert",
			wire.NewMsgAlert([]byte("payload"), []byte("signature")),
		},
		{
			"OnMemPool",
			wire.NewMsgMemPool(),
		},
		{
			"OnTx",
			wire.NewMsgTx(),
		},
		{
			"OnBlock",
			wire.NewMsgBlock(wire.NewBlockHeader(&wire.ShaHash{}, &wire.ShaHash{}, 1, 1)),
		},
		{
			"OnInv",
			wire.NewMsgInv(),
		},
		{
			"OnHeaders",
			wire.NewMsgHeaders(),
		},
		{
			"OnNotFound",
			wire.NewMsgNotFound(),
		},
		{
			"OnGetData",
			wire.NewMsgGetData(),
		},
		{
			"OnGetBlocks",
			wire.NewMsgGetBlocks(&wire.ShaHash{}),
		},
		{
			"OnGetHeaders",
			wire.NewMsgGetHeaders(),
		},
		{
			"OnFilterAdd",
			wire.NewMsgFilterAdd([]byte{0x01}),
		},
		{
			"OnFilterClear",
			wire.NewMsgFilterClear(),
		},
		{
			"OnFilterLoad",
			wire.NewMsgFilterLoad([]byte{0x01}, 10, 0, wire.BloomUpdateNone),
		},
		{
			"OnMerkleBlock",
			wire.NewMsgMerkleBlock(wire.NewBlockHeader(&wire.ShaHash{}, &wire.ShaHash{}, 1, 1)),
		},
		// only one version message is allowed
		// only one verack message is allowed
		{
			"OnMsgReject",
			wire.NewMsgReject("block", wire.RejectDuplicate, "dupe block"),
		},
	}
	t.Logf("Running %d tests", len(tests))
	for _, test := range tests {
		// Queue the test message
		outPeer.QueueMessage(test.msg, nil)
		select {
		case <-ok:
		case <-time.After(time.Second * 1):
			t.Errorf("TestPeerListeners: %s timeout", test.listener)
			return
		}
	}
	inPeer.Disconnect()
	outPeer.Disconnect()
}
Exemplo n.º 3
0
// TestAddrWireErrors performs negative tests against wire encode and decode
// of MsgAddr to confirm error paths work correctly.
func TestAddrWireErrors(t *testing.T) {
	pver := wire.ProtocolVersion
	pverMA := wire.MultipleAddressVersion
	wireErr := &wire.MessageError{}

	// A couple of NetAddresses to use for testing.
	na := &wire.NetAddress{
		Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
		Services:  wire.SFNodeNetwork,
		IP:        net.ParseIP("127.0.0.1"),
		Port:      8333,
	}
	na2 := &wire.NetAddress{
		Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
		Services:  wire.SFNodeNetwork,
		IP:        net.ParseIP("192.168.0.1"),
		Port:      8334,
	}

	// Address message with multiple addresses.
	baseAddr := wire.NewMsgAddr()
	baseAddr.AddAddresses(na, na2)
	baseAddrEncoded := []byte{
		0x02,                   // Varint for number of addresses
		0x29, 0xab, 0x5f, 0x49, // Timestamp
		0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
		0x20, 0x8d, // Port 8333 in big-endian
		0x29, 0xab, 0x5f, 0x49, // Timestamp
		0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0xff, 0xff, 0xc0, 0xa8, 0x00, 0x01, // IP 192.168.0.1
		0x20, 0x8e, // Port 8334 in big-endian

	}

	// Message that forces an error by having more than the max allowed
	// addresses.
	maxAddr := wire.NewMsgAddr()
	for i := 0; i < wire.MaxAddrPerMsg; i++ {
		maxAddr.AddAddress(na)
	}
	maxAddr.AddrList = append(maxAddr.AddrList, na)
	maxAddrEncoded := []byte{
		0xfd, 0x03, 0xe9, // Varint for number of addresses (1001)
	}

	tests := []struct {
		in       *wire.MsgAddr // Value to encode
		buf      []byte        // Wire encoding
		pver     uint32        // Protocol version for wire encoding
		max      int           // Max size of fixed buffer to induce errors
		writeErr error         // Expected write error
		readErr  error         // Expected read error
	}{
		// Latest protocol version with intentional read/write errors.
		// Force error in addresses count
		{baseAddr, baseAddrEncoded, pver, 0, io.ErrShortWrite, io.EOF},
		// Force error in address list.
		{baseAddr, baseAddrEncoded, pver, 1, io.ErrShortWrite, io.EOF},
		// Force error with greater than max inventory vectors.
		{maxAddr, maxAddrEncoded, pver, 3, wireErr, wireErr},
		// Force error with greater than max inventory vectors for
		// protocol versions before multiple addresses were allowed.
		{maxAddr, maxAddrEncoded, pverMA - 1, 3, wireErr, wireErr},
	}

	t.Logf("Running %d tests", len(tests))
	for i, test := range tests {
		// Encode to wire format.
		w := newFixedWriter(test.max)
		err := test.in.BtcEncode(w, test.pver)
		if reflect.TypeOf(err) != reflect.TypeOf(test.writeErr) {
			t.Errorf("BtcEncode #%d wrong error got: %v, want: %v",
				i, err, test.writeErr)
			continue
		}

		// For errors which are not of type wire.MessageError, check
		// them for equality.
		if _, ok := err.(*wire.MessageError); !ok {
			if err != test.writeErr {
				t.Errorf("BtcEncode #%d wrong error got: %v, "+
					"want: %v", i, err, test.writeErr)
				continue
			}
		}

		// Decode from wire format.
		var msg wire.MsgAddr
		r := newFixedReader(test.max, test.buf)
		err = msg.BtcDecode(r, test.pver)
		if reflect.TypeOf(err) != reflect.TypeOf(test.readErr) {
			t.Errorf("BtcDecode #%d wrong error got: %v, want: %v",
				i, err, test.readErr)
			continue
		}

		// For errors which are not of type wire.MessageError, check
		// them for equality.
		if _, ok := err.(*wire.MessageError); !ok {
			if err != test.readErr {
				t.Errorf("BtcDecode #%d wrong error got: %v, "+
					"want: %v", i, err, test.readErr)
				continue
			}
		}

	}
}
Exemplo n.º 4
0
// TestAddr tests the MsgAddr API.
func TestAddr(t *testing.T) {
	pver := wire.ProtocolVersion

	// Ensure the command is expected value.
	wantCmd := "addr"
	msg := wire.NewMsgAddr()
	if cmd := msg.Command(); cmd != wantCmd {
		t.Errorf("NewMsgAddr: wrong command - got %v want %v",
			cmd, wantCmd)
	}

	// Ensure max payload is expected value for latest protocol version.
	// Num addresses (varInt) + max allowed addresses.
	wantPayload := uint32(30009)
	maxPayload := msg.MaxPayloadLength(pver)
	if maxPayload != wantPayload {
		t.Errorf("MaxPayloadLength: wrong max payload length for "+
			"protocol version %d - got %v, want %v", pver,
			maxPayload, wantPayload)
	}

	// Ensure NetAddresses are added properly.
	tcpAddr := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333}
	na, err := wire.NewNetAddress(tcpAddr, wire.SFNodeNetwork)
	if err != nil {
		t.Errorf("NewNetAddress: %v", err)
	}
	err = msg.AddAddress(na)
	if err != nil {
		t.Errorf("AddAddress: %v", err)
	}
	if msg.AddrList[0] != na {
		t.Errorf("AddAddress: wrong address added - got %v, want %v",
			spew.Sprint(msg.AddrList[0]), spew.Sprint(na))
	}

	// Ensure the address list is cleared properly.
	msg.ClearAddresses()
	if len(msg.AddrList) != 0 {
		t.Errorf("ClearAddresses: address list is not empty - "+
			"got %v [%v], want %v", len(msg.AddrList),
			spew.Sprint(msg.AddrList[0]), 0)
	}

	// Ensure adding more than the max allowed addresses per message returns
	// error.
	for i := 0; i < wire.MaxAddrPerMsg+1; i++ {
		err = msg.AddAddress(na)
	}
	if err == nil {
		t.Errorf("AddAddress: expected error on too many addresses " +
			"not received")
	}
	err = msg.AddAddresses(na)
	if err == nil {
		t.Errorf("AddAddresses: expected error on too many addresses " +
			"not received")
	}

	// Ensure max payload is expected value for protocol versions before
	// timestamp was added to NetAddress.
	// Num addresses (varInt) + max allowed addresses.
	pver = wire.NetAddressTimeVersion - 1
	wantPayload = uint32(26009)
	maxPayload = msg.MaxPayloadLength(pver)
	if maxPayload != wantPayload {
		t.Errorf("MaxPayloadLength: wrong max payload length for "+
			"protocol version %d - got %v, want %v", pver,
			maxPayload, wantPayload)
	}

	// Ensure max payload is expected value for protocol versions before
	// multiple addresses were allowed.
	// Num addresses (varInt) + a single net addresses.
	pver = wire.MultipleAddressVersion - 1
	wantPayload = uint32(35)
	maxPayload = msg.MaxPayloadLength(pver)
	if maxPayload != wantPayload {
		t.Errorf("MaxPayloadLength: wrong max payload length for "+
			"protocol version %d - got %v, want %v", pver,
			maxPayload, wantPayload)
	}

	return
}
Exemplo n.º 5
0
// TestAddrWire tests the MsgAddr wire encode and decode for various numbers
// of addreses and protocol versions.
func TestAddrWire(t *testing.T) {
	// A couple of NetAddresses to use for testing.
	na := &wire.NetAddress{
		Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
		Services:  wire.SFNodeNetwork,
		IP:        net.ParseIP("127.0.0.1"),
		Port:      8333,
	}
	na2 := &wire.NetAddress{
		Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
		Services:  wire.SFNodeNetwork,
		IP:        net.ParseIP("192.168.0.1"),
		Port:      8334,
	}

	// Empty address message.
	noAddr := wire.NewMsgAddr()
	noAddrEncoded := []byte{
		0x00, // Varint for number of addresses
	}

	// Address message with multiple addresses.
	multiAddr := wire.NewMsgAddr()
	multiAddr.AddAddresses(na, na2)
	multiAddrEncoded := []byte{
		0x02,                   // Varint for number of addresses
		0x29, 0xab, 0x5f, 0x49, // Timestamp
		0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0xff, 0xff, 0x7f, 0x00, 0x00, 0x01, // IP 127.0.0.1
		0x20, 0x8d, // Port 8333 in big-endian
		0x29, 0xab, 0x5f, 0x49, // Timestamp
		0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // SFNodeNetwork
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0xff, 0xff, 0xc0, 0xa8, 0x00, 0x01, // IP 192.168.0.1
		0x20, 0x8e, // Port 8334 in big-endian

	}

	tests := []struct {
		in   *wire.MsgAddr // Message to encode
		out  *wire.MsgAddr // Expected decoded message
		buf  []byte        // Wire encoding
		pver uint32        // Protocol version for wire encoding
	}{
		// Latest protocol version with no addresses.
		{
			noAddr,
			noAddr,
			noAddrEncoded,
			wire.ProtocolVersion,
		},

		// Latest protocol version with multiple addresses.
		{
			multiAddr,
			multiAddr,
			multiAddrEncoded,
			wire.ProtocolVersion,
		},

		// Protocol version MultipleAddressVersion-1 with no addresses.
		{
			noAddr,
			noAddr,
			noAddrEncoded,
			wire.MultipleAddressVersion - 1,
		},
	}

	t.Logf("Running %d tests", len(tests))
	for i, test := range tests {
		// Encode the message to wire format.
		var buf bytes.Buffer
		err := test.in.BtcEncode(&buf, test.pver)
		if err != nil {
			t.Errorf("BtcEncode #%d error %v", i, err)
			continue
		}
		if !bytes.Equal(buf.Bytes(), test.buf) {
			t.Errorf("BtcEncode #%d\n got: %s want: %s", i,
				spew.Sdump(buf.Bytes()), spew.Sdump(test.buf))
			continue
		}

		// Decode the message from wire format.
		var msg wire.MsgAddr
		rbuf := bytes.NewReader(test.buf)
		err = msg.BtcDecode(rbuf, test.pver)
		if err != nil {
			t.Errorf("BtcDecode #%d error %v", i, err)
			continue
		}
		if !reflect.DeepEqual(&msg, test.out) {
			t.Errorf("BtcDecode #%d\n got: %s want: %s", i,
				spew.Sdump(msg), spew.Sdump(test.out))
			continue
		}
	}
}
Exemplo n.º 6
0
// TestMessage tests the Read/WriteMessage and Read/WriteMessageN API.
func TestMessage(t *testing.T) {
	pver := wire.ProtocolVersion

	// Create the various types of messages to test.

	// MsgVersion.
	addrYou := &net.TCPAddr{IP: net.ParseIP("192.168.0.1"), Port: 8333}
	you, err := wire.NewNetAddress(addrYou, wire.SFNodeNetwork)
	if err != nil {
		t.Errorf("NewNetAddress: %v", err)
	}
	you.Timestamp = time.Time{} // Version message has zero value timestamp.
	addrMe := &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 8333}
	me, err := wire.NewNetAddress(addrMe, wire.SFNodeNetwork)
	if err != nil {
		t.Errorf("NewNetAddress: %v", err)
	}
	me.Timestamp = time.Time{} // Version message has zero value timestamp.
	msgVersion := wire.NewMsgVersion(me, you, 123123, 0)

	msgVerack := wire.NewMsgVerAck()
	msgGetAddr := wire.NewMsgGetAddr()
	msgAddr := wire.NewMsgAddr()
	msgGetBlocks := wire.NewMsgGetBlocks(&wire.ShaHash{})
	msgBlock := &blockOne
	msgInv := wire.NewMsgInv()
	msgGetData := wire.NewMsgGetData()
	msgNotFound := wire.NewMsgNotFound()
	msgTx := wire.NewMsgTx()
	msgPing := wire.NewMsgPing(123123)
	msgPong := wire.NewMsgPong(123123)
	msgGetHeaders := wire.NewMsgGetHeaders()
	msgHeaders := wire.NewMsgHeaders()
	msgAlert := wire.NewMsgAlert([]byte("payload"), []byte("signature"))
	msgMemPool := wire.NewMsgMemPool()
	msgFilterAdd := wire.NewMsgFilterAdd([]byte{0x01})
	msgFilterClear := wire.NewMsgFilterClear()
	msgFilterLoad := wire.NewMsgFilterLoad([]byte{0x01}, 10, 0, wire.BloomUpdateNone)
	bh := wire.NewBlockHeader(&wire.ShaHash{}, &wire.ShaHash{}, 0, 0)
	msgMerkleBlock := wire.NewMsgMerkleBlock(bh)
	msgReject := wire.NewMsgReject("block", wire.RejectDuplicate, "duplicate block")

	tests := []struct {
		in     wire.Message    // Value to encode
		out    wire.Message    // Expected decoded value
		pver   uint32          // Protocol version for wire encoding
		btcnet wire.BitcoinNet // Network to use for wire encoding
		bytes  int             // Expected num bytes read/written
	}{
		{msgVersion, msgVersion, pver, wire.MainNet, 125},
		{msgVerack, msgVerack, pver, wire.MainNet, 24},
		{msgGetAddr, msgGetAddr, pver, wire.MainNet, 24},
		{msgAddr, msgAddr, pver, wire.MainNet, 25},
		{msgGetBlocks, msgGetBlocks, pver, wire.MainNet, 61},
		{msgBlock, msgBlock, pver, wire.MainNet, 239},
		{msgInv, msgInv, pver, wire.MainNet, 25},
		{msgGetData, msgGetData, pver, wire.MainNet, 25},
		{msgNotFound, msgNotFound, pver, wire.MainNet, 25},
		{msgTx, msgTx, pver, wire.MainNet, 34},
		{msgPing, msgPing, pver, wire.MainNet, 32},
		{msgPong, msgPong, pver, wire.MainNet, 32},
		{msgGetHeaders, msgGetHeaders, pver, wire.MainNet, 61},
		{msgHeaders, msgHeaders, pver, wire.MainNet, 25},
		{msgAlert, msgAlert, pver, wire.MainNet, 42},
		{msgMemPool, msgMemPool, pver, wire.MainNet, 24},
		{msgFilterAdd, msgFilterAdd, pver, wire.MainNet, 26},
		{msgFilterClear, msgFilterClear, pver, wire.MainNet, 24},
		{msgFilterLoad, msgFilterLoad, pver, wire.MainNet, 35},
		{msgMerkleBlock, msgMerkleBlock, pver, wire.MainNet, 110},
		{msgReject, msgReject, pver, wire.MainNet, 79},
	}

	t.Logf("Running %d tests", len(tests))
	for i, test := range tests {
		// Encode to wire format.
		var buf bytes.Buffer
		nw, err := wire.WriteMessageN(&buf, test.in, test.pver, test.btcnet)
		if err != nil {
			t.Errorf("WriteMessage #%d error %v", i, err)
			continue
		}

		// Ensure the number of bytes written match the expected value.
		if nw != test.bytes {
			t.Errorf("WriteMessage #%d unexpected num bytes "+
				"written - got %d, want %d", i, nw, test.bytes)
		}

		// Decode from wire format.
		rbuf := bytes.NewReader(buf.Bytes())
		nr, msg, _, err := wire.ReadMessageN(rbuf, test.pver, test.btcnet)
		if err != nil {
			t.Errorf("ReadMessage #%d error %v, msg %v", i, err,
				spew.Sdump(msg))
			continue
		}
		if !reflect.DeepEqual(msg, test.out) {
			t.Errorf("ReadMessage #%d\n got: %v want: %v", i,
				spew.Sdump(msg), spew.Sdump(test.out))
			continue
		}

		// Ensure the number of bytes read match the expected value.
		if nr != test.bytes {
			t.Errorf("ReadMessage #%d unexpected num bytes read - "+
				"got %d, want %d", i, nr, test.bytes)
		}
	}

	// Do the same thing for Read/WriteMessage, but ignore the bytes since
	// they don't return them.
	t.Logf("Running %d tests", len(tests))
	for i, test := range tests {
		// Encode to wire format.
		var buf bytes.Buffer
		err := wire.WriteMessage(&buf, test.in, test.pver, test.btcnet)
		if err != nil {
			t.Errorf("WriteMessage #%d error %v", i, err)
			continue
		}

		// Decode from wire format.
		rbuf := bytes.NewReader(buf.Bytes())
		msg, _, err := wire.ReadMessage(rbuf, test.pver, test.btcnet)
		if err != nil {
			t.Errorf("ReadMessage #%d error %v, msg %v", i, err,
				spew.Sdump(msg))
			continue
		}
		if !reflect.DeepEqual(msg, test.out) {
			t.Errorf("ReadMessage #%d\n got: %v want: %v", i,
				spew.Sdump(msg), spew.Sdump(test.out))
			continue
		}
	}
}