Example #1
0
// TestMerkleBlockCrossProtocol tests the MsgMerkleBlock API when encoding with
// the latest protocol version and decoding with BIP0031Version.
func TestMerkleBlockCrossProtocol(t *testing.T) {
	// Block 1 header.
	prevHash := &blockOne.Header.PrevBlock
	merkleHash := &blockOne.Header.MerkleRoot
	bits := blockOne.Header.Bits
	nonce := blockOne.Header.Nonce
	bh := btcwire.NewBlockHeader(prevHash, merkleHash, bits, nonce)

	msg := btcwire.NewMsgMerkleBlock(bh)

	// Encode with latest protocol version.
	var buf bytes.Buffer
	err := msg.BtcEncode(&buf, btcwire.ProtocolVersion)
	if err != nil {
		t.Errorf("encode of NewMsgFilterLoad failed %v err <%v>", msg,
			err)
	}

	// Decode with old protocol version.
	var readmsg btcwire.MsgFilterLoad
	err = readmsg.BtcDecode(&buf, btcwire.BIP0031Version)
	if err == nil {
		t.Errorf("decode of MsgFilterLoad succeeded when it shouldn't have %v",
			msg)
	}
}
Example #2
0
// TestBlockHeader tests the BlockHeader API.
func TestBlockHeader(t *testing.T) {
	nonce64, err := btcwire.RandomUint64()
	if err != nil {
		t.Errorf("RandomUint64: Error generating nonce: %v", err)
	}
	nonce := uint32(nonce64)

	hash := btcwire.GenesisHash
	merkleHash := btcwire.GenesisMerkleRoot
	bits := uint32(0x1d00ffff)
	bh := btcwire.NewBlockHeader(&hash, &merkleHash, bits, nonce)

	// Ensure we get the same data back out.
	if !bh.PrevBlock.IsEqual(&hash) {
		t.Errorf("NewBlockHeader: wrong prev hash - got %v, want %v",
			spew.Sprint(bh.PrevBlock), spew.Sprint(hash))
	}
	if !bh.MerkleRoot.IsEqual(&merkleHash) {
		t.Errorf("NewBlockHeader: wrong merkle root - got %v, want %v",
			spew.Sprint(bh.MerkleRoot), spew.Sprint(merkleHash))
	}
	if bh.Bits != bits {
		t.Errorf("NewBlockHeader: wrong bits - got %v, want %v",
			bh.Bits, bits)
	}
	if bh.Nonce != nonce {
		t.Errorf("NewBlockHeader: wrong nonce - got %v, want %v",
			bh.Nonce, nonce)
	}
}
Example #3
0
// TestBlock tests the MsgBlock API.
func TestBlock(t *testing.T) {
	pver := btcwire.ProtocolVersion

	// Block 1 header.
	prevHash := &blockOne.Header.PrevBlock
	merkleHash := &blockOne.Header.MerkleRoot
	bits := blockOne.Header.Bits
	nonce := blockOne.Header.Nonce
	bh := btcwire.NewBlockHeader(prevHash, merkleHash, bits, nonce)

	// Ensure the command is expected value.
	wantCmd := "block"
	msg := btcwire.NewMsgBlock(bh)
	if cmd := msg.Command(); cmd != wantCmd {
		t.Errorf("NewMsgBlock: 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(1000000)
	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 we get the same block header data back out.
	if !reflect.DeepEqual(&msg.Header, bh) {
		t.Errorf("NewMsgBlock: wrong block header - got %v, want %v",
			spew.Sdump(&msg.Header), spew.Sdump(bh))
	}

	// Ensure transactions are added properly.
	tx := blockOne.Transactions[0].Copy()
	msg.AddTransaction(tx)
	if !reflect.DeepEqual(msg.Transactions, blockOne.Transactions) {
		t.Errorf("AddTransaction: wrong transactions - got %v, want %v",
			spew.Sdump(msg.Transactions),
			spew.Sdump(blockOne.Transactions))
	}

	// Ensure transactions are properly cleared.
	msg.ClearTransactions()
	if len(msg.Transactions) != 0 {
		t.Errorf("ClearTransactions: wrong transactions - got %v, want %v",
			len(msg.Transactions), 0)
	}

	return
}
Example #4
0
// TestHeadersWire tests the MsgHeaders wire encode and decode for various
// numbers of headers and protocol versions.
func TestHeadersWire(t *testing.T) {
	hash := btcwire.GenesisHash
	merkleHash := blockOne.Header.MerkleRoot
	bits := uint32(0x1d00ffff)
	nonce := uint32(0x9962e301)
	bh := btcwire.NewBlockHeader(&hash, &merkleHash, bits, nonce)
	bh.Version = blockOne.Header.Version
	bh.Timestamp = blockOne.Header.Timestamp

	// Empty headers message.
	noHeaders := btcwire.NewMsgHeaders()
	noHeadersEncoded := []byte{
		0x00, // Varint for number of headers
	}

	// Headers message with one header.
	oneHeader := btcwire.NewMsgHeaders()
	oneHeader.AddBlockHeader(bh)
	oneHeaderEncoded := []byte{
		0x01,                   // VarInt for number of headers.
		0x01, 0x00, 0x00, 0x00, // Version 1
		0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
		0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
		0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
		0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // PrevBlock
		0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
		0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
		0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
		0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // MerkleRoot
		0x61, 0xbc, 0x66, 0x49, // Timestamp
		0xff, 0xff, 0x00, 0x1d, // Bits
		0x01, 0xe3, 0x62, 0x99, // Nonce
		0x00, // TxnCount (0 for headers message)
	}

	tests := []struct {
		in   *btcwire.MsgHeaders // Message to encode
		out  *btcwire.MsgHeaders // Expected decoded message
		buf  []byte              // Wire encoding
		pver uint32              // Protocol version for wire encoding
	}{
		// Latest protocol version with no headers.
		{
			noHeaders,
			noHeaders,
			noHeadersEncoded,
			btcwire.ProtocolVersion,
		},

		// Latest protocol version with one header.
		{
			oneHeader,
			oneHeader,
			oneHeaderEncoded,
			btcwire.ProtocolVersion,
		},

		// Protocol version BIP0035Version with no headers.
		{
			noHeaders,
			noHeaders,
			noHeadersEncoded,
			btcwire.BIP0035Version,
		},

		// Protocol version BIP0035Version with one header.
		{
			oneHeader,
			oneHeader,
			oneHeaderEncoded,
			btcwire.BIP0035Version,
		},

		// Protocol version BIP0031Version with no headers.
		{
			noHeaders,
			noHeaders,
			noHeadersEncoded,
			btcwire.BIP0031Version,
		},

		// Protocol version BIP0031Version with one header.
		{
			oneHeader,
			oneHeader,
			oneHeaderEncoded,
			btcwire.BIP0031Version,
		},
		// Protocol version NetAddressTimeVersion with no headers.
		{
			noHeaders,
			noHeaders,
			noHeadersEncoded,
			btcwire.NetAddressTimeVersion,
		},

		// Protocol version NetAddressTimeVersion with one header.
		{
			oneHeader,
			oneHeader,
			oneHeaderEncoded,
			btcwire.NetAddressTimeVersion,
		},

		// Protocol version MultipleAddressVersion with no headers.
		{
			noHeaders,
			noHeaders,
			noHeadersEncoded,
			btcwire.MultipleAddressVersion,
		},

		// Protocol version MultipleAddressVersion with one header.
		{
			oneHeader,
			oneHeader,
			oneHeaderEncoded,
			btcwire.MultipleAddressVersion,
		},
	}

	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 btcwire.MsgHeaders
		rbuf := bytes.NewBuffer(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
		}
	}
}
Example #5
0
// TestHeadersWireErrors performs negative tests against wire encode and decode
// of MsgHeaders to confirm error paths work correctly.
func TestHeadersWireErrors(t *testing.T) {
	pver := btcwire.ProtocolVersion
	btcwireErr := &btcwire.MessageError{}

	hash := btcwire.GenesisHash
	merkleHash := blockOne.Header.MerkleRoot
	bits := uint32(0x1d00ffff)
	nonce := uint32(0x9962e301)
	bh := btcwire.NewBlockHeader(&hash, &merkleHash, bits, nonce)
	bh.Version = blockOne.Header.Version
	bh.Timestamp = blockOne.Header.Timestamp

	// Headers message with one header.
	oneHeader := btcwire.NewMsgHeaders()
	oneHeader.AddBlockHeader(bh)
	oneHeaderEncoded := []byte{
		0x01,                   // VarInt for number of headers.
		0x01, 0x00, 0x00, 0x00, // Version 1
		0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
		0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
		0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
		0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // PrevBlock
		0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
		0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
		0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
		0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // MerkleRoot
		0x61, 0xbc, 0x66, 0x49, // Timestamp
		0xff, 0xff, 0x00, 0x1d, // Bits
		0x01, 0xe3, 0x62, 0x99, // Nonce
		0x00, // TxnCount (0 for headers message)
	}

	// Message that forces an error by having more than the max allowed
	// headers.
	maxHeaders := btcwire.NewMsgHeaders()
	for i := 0; i < btcwire.MaxBlockHeadersPerMsg; i++ {
		maxHeaders.AddBlockHeader(bh)
	}
	maxHeaders.Headers = append(maxHeaders.Headers, bh)
	maxHeadersEncoded := []byte{
		0xfd, 0xd1, 0x07, // Varint for number of addresses (2001)7D1
	}

	// Intentionally invalid block header that has a transaction count used
	// to force errors.
	bhTrans := btcwire.NewBlockHeader(&hash, &merkleHash, bits, nonce)
	bhTrans.Version = blockOne.Header.Version
	bhTrans.Timestamp = blockOne.Header.Timestamp
	bhTrans.TxnCount = 1

	transHeader := btcwire.NewMsgHeaders()
	transHeader.AddBlockHeader(bhTrans)
	transHeaderEncoded := []byte{
		0x01,                   // VarInt for number of headers.
		0x01, 0x00, 0x00, 0x00, // Version 1
		0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
		0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
		0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
		0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, // PrevBlock
		0x98, 0x20, 0x51, 0xfd, 0x1e, 0x4b, 0xa7, 0x44,
		0xbb, 0xbe, 0x68, 0x0e, 0x1f, 0xee, 0x14, 0x67,
		0x7b, 0xa1, 0xa3, 0xc3, 0x54, 0x0b, 0xf7, 0xb1,
		0xcd, 0xb6, 0x06, 0xe8, 0x57, 0x23, 0x3e, 0x0e, // MerkleRoot
		0x61, 0xbc, 0x66, 0x49, // Timestamp
		0xff, 0xff, 0x00, 0x1d, // Bits
		0x01, 0xe3, 0x62, 0x99, // Nonce
		0x01, // TxnCount (should be 0 for headers message, but 1 to force error)
	}

	tests := []struct {
		in       *btcwire.MsgHeaders // 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 header count.
		{oneHeader, oneHeaderEncoded, pver, 0, io.ErrShortWrite, io.EOF},
		// Force error in block header.
		{oneHeader, oneHeaderEncoded, pver, 5, io.ErrShortWrite, io.EOF},
		// Force error with greater than max headers.
		{maxHeaders, maxHeadersEncoded, pver, 3, btcwireErr, btcwireErr},
		// Force error with included transactions.
		{transHeader, transHeaderEncoded, pver, len(transHeaderEncoded), btcwireErr, btcwireErr},
	}

	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 btcwire.MessageError, check
		// them for equality.
		if _, ok := err.(*btcwire.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 btcwire.MsgHeaders
		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 btcwire.MessageError, check
		// them for equality.
		if _, ok := err.(*btcwire.MessageError); !ok {
			if err != test.readErr {
				t.Errorf("BtcDecode #%d wrong error got: %v, "+
					"want: %v", i, err, test.readErr)
				continue
			}
		}

	}
}
Example #6
0
// TestMerkleBlock tests the MsgMerkleBlock API.
func TestMerkleBlock(t *testing.T) {
	pver := btcwire.ProtocolVersion

	// Block 1 header.
	prevHash := &blockOne.Header.PrevBlock
	merkleHash := &blockOne.Header.MerkleRoot
	bits := blockOne.Header.Bits
	nonce := blockOne.Header.Nonce
	bh := btcwire.NewBlockHeader(prevHash, merkleHash, bits, nonce)

	// Ensure the command is expected value.
	wantCmd := "merkleblock"
	msg := btcwire.NewMsgMerkleBlock(bh)
	if cmd := msg.Command(); cmd != wantCmd {
		t.Errorf("NewMsgBlock: 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(1000000)
	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)
	}

	// Load maxTxPerBlock hashes
	data := make([]byte, 32)
	for i := 0; i < btcwire.MaxTxPerBlock; i++ {
		rand.Read(data)
		hash, err := btcwire.NewShaHash(data)
		if err != nil {
			t.Errorf("NewShaHash failed: %v\n", err)
			return
		}

		if err = msg.AddTxHash(hash); err != nil {
			t.Errorf("AddTxHash failed: %v\n", err)
			return
		}
	}

	// Add one more Tx to test failure.
	rand.Read(data)
	hash, err := btcwire.NewShaHash(data)
	if err != nil {
		t.Errorf("NewShaHash failed: %v\n", err)
		return
	}

	if err = msg.AddTxHash(hash); err == nil {
		t.Errorf("AddTxHash succeeded when it should have failed")
		return
	}

	// Test encode with latest protocol version.
	var buf bytes.Buffer
	err = msg.BtcEncode(&buf, pver)
	if err != nil {
		t.Errorf("encode of MsgMerkleBlock failed %v err <%v>", msg, err)
	}

	// Test decode with latest protocol version.
	readmsg := btcwire.MsgMerkleBlock{}
	err = readmsg.BtcDecode(&buf, pver)
	if err != nil {
		t.Errorf("decode of MsgMerkleBlock failed [%v] err <%v>", buf, err)
	}

	// Force extra hash to test maxTxPerBlock.
	msg.Hashes = append(msg.Hashes, hash)
	err = msg.BtcEncode(&buf, pver)
	if err == nil {
		t.Errorf("encode of MsgMerkleBlock succeeded with too many " +
			"tx hashes when it should have failed")
		return
	}

	// Force too many flag bytes to test maxFlagsPerMerkleBlock.
	// Reset the number of hashes back to a valid value.
	msg.Hashes = msg.Hashes[len(msg.Hashes)-1:]
	msg.Flags = make([]byte, btcwire.MaxFlagsPerMerkleBlock+1)
	err = msg.BtcEncode(&buf, pver)
	if err == nil {
		t.Errorf("encode of MsgMerkleBlock succeeded with too many " +
			"flag bytes when it should have failed")
		return
	}
}