Пример #1
0
// TestNetAddressWire tests the NetAddress wire encode and decode for various
// protocol versions and timestamp flag combinations.
func TestNetAddressWire(t *testing.T) {
	// baseNetAddr is used in the various tests as a baseline NetAddress.
	baseNetAddr := btcwire.NetAddress{
		Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
		Services:  btcwire.SFNodeNetwork,
		IP:        net.ParseIP("127.0.0.1"),
		Port:      8333,
	}

	// baseNetAddrNoTS is baseNetAddr with a zero value for the timestamp.
	baseNetAddrNoTS := baseNetAddr
	baseNetAddrNoTS.Timestamp = time.Time{}

	// baseNetAddrEncoded is the wire encoded bytes of baseNetAddr.
	baseNetAddrEncoded := []byte{
		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
	}

	// baseNetAddrNoTSEncoded is the wire encoded bytes of baseNetAddrNoTS.
	baseNetAddrNoTSEncoded := []byte{
		// No 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
	}

	tests := []struct {
		in   btcwire.NetAddress // NetAddress to encode
		out  btcwire.NetAddress // Expected decoded NetAddress
		ts   bool               // Include timestamp?
		buf  []byte             // Wire encoding
		pver uint32             // Protocol version for wire encoding
	}{
		// Latest protocol version without ts flag.
		{
			baseNetAddr,
			baseNetAddrNoTS,
			false,
			baseNetAddrNoTSEncoded,
			btcwire.ProtocolVersion,
		},

		// Latest protocol version with ts flag.
		{
			baseNetAddr,
			baseNetAddr,
			true,
			baseNetAddrEncoded,
			btcwire.ProtocolVersion,
		},

		// Protocol version NetAddressTimeVersion without ts flag.
		{
			baseNetAddr,
			baseNetAddrNoTS,
			false,
			baseNetAddrNoTSEncoded,
			btcwire.NetAddressTimeVersion,
		},

		// Protocol version NetAddressTimeVersion with ts flag.
		{
			baseNetAddr,
			baseNetAddr,
			true,
			baseNetAddrEncoded,
			btcwire.NetAddressTimeVersion,
		},

		// Protocol version NetAddressTimeVersion-1 without ts flag.
		{
			baseNetAddr,
			baseNetAddrNoTS,
			false,
			baseNetAddrNoTSEncoded,
			btcwire.NetAddressTimeVersion - 1,
		},

		// Protocol version NetAddressTimeVersion-1 with timestamp.
		// Even though the timestamp flag is set, this shouldn't have a
		// timestamp since it is a protocol version before it was
		// added.
		{
			baseNetAddr,
			baseNetAddrNoTS,
			true,
			baseNetAddrNoTSEncoded,
			btcwire.NetAddressTimeVersion - 1,
		},
	}

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

		// Decode the message from wire format.
		var na btcwire.NetAddress
		rbuf := bytes.NewBuffer(test.buf)
		err = btcwire.TstReadNetAddress(rbuf, test.pver, &na, test.ts)
		if err != nil {
			t.Errorf("readNetAddress #%d error %v", i, err)
			continue
		}
		if !reflect.DeepEqual(na, test.out) {
			t.Errorf("readNetAddress #%d\n got: %s want: %s", i,
				spew.Sdump(na), spew.Sdump(test.out))
			continue
		}
	}
}
Пример #2
0
// TestNetAddressWireErrors performs negative tests against wire encode and
// decode NetAddress to confirm error paths work correctly.
func TestNetAddressWireErrors(t *testing.T) {
	pver := btcwire.ProtocolVersion
	pverNAT := btcwire.NetAddressTimeVersion - 1

	// baseNetAddr is used in the various tests as a baseline NetAddress.
	baseNetAddr := btcwire.NetAddress{
		Timestamp: time.Unix(0x495fab29, 0), // 2009-01-03 12:15:05 -0600 CST
		Services:  btcwire.SFNodeNetwork,
		IP:        net.ParseIP("127.0.0.1"),
		Port:      8333,
	}

	tests := []struct {
		in       *btcwire.NetAddress // Value to encode
		buf      []byte              // Wire encoding
		pver     uint32              // Protocol version for wire encoding
		ts       bool                // Include timestamp flag
		max      int                 // Max size of fixed buffer to induce errors
		writeErr error               // Expected write error
		readErr  error               // Expected read error
	}{
		// Latest protocol version with timestamp and intentional
		// read/write errors.
		// Force errors on timestamp.
		{&baseNetAddr, []byte{}, pver, true, 0, io.ErrShortWrite, io.EOF},
		// Force errors on services.
		{&baseNetAddr, []byte{}, pver, true, 4, io.ErrShortWrite, io.EOF},
		// Force errors on ip.
		{&baseNetAddr, []byte{}, pver, true, 12, io.ErrShortWrite, io.EOF},
		// Force errors on port.
		{&baseNetAddr, []byte{}, pver, true, 28, io.ErrShortWrite, io.EOF},

		// Latest protocol version with no timestamp and intentional
		// read/write errors.
		// Force errors on services.
		{&baseNetAddr, []byte{}, pver, false, 0, io.ErrShortWrite, io.EOF},
		// Force errors on ip.
		{&baseNetAddr, []byte{}, pver, false, 8, io.ErrShortWrite, io.EOF},
		// Force errors on port.
		{&baseNetAddr, []byte{}, pver, false, 24, io.ErrShortWrite, io.EOF},

		// Protocol version before NetAddressTimeVersion with timestamp
		// flag set (should not have timestamp due to old protocol
		// version) and  intentional read/write errors.
		// Force errors on services.
		{&baseNetAddr, []byte{}, pverNAT, true, 0, io.ErrShortWrite, io.EOF},
		// Force errors on ip.
		{&baseNetAddr, []byte{}, pverNAT, true, 8, io.ErrShortWrite, io.EOF},
		// Force errors on port.
		{&baseNetAddr, []byte{}, pverNAT, true, 24, io.ErrShortWrite, io.EOF},
	}

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

		// Decode from wire format.
		var na btcwire.NetAddress
		r := newFixedReader(test.max, test.buf)
		err = btcwire.TstReadNetAddress(r, test.pver, &na, test.ts)
		if err != test.readErr {
			t.Errorf("readNetAddress #%d wrong error got: %v, want: %v",
				i, err, test.readErr)
			continue
		}
	}
}