mirror of
https://github.com/lightningnetwork/lnd.git
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7dfe4018ce
This commit was previously split into the following parts to ease review: - 2d746f68: replace imports - 4008f0fd: use ecdsa.Signature - 849e33d1: remove btcec.S256() - b8f6ebbd: use v2 library correctly - fa80bca9: bump go modules
540 lines
14 KiB
Go
540 lines
14 KiB
Go
package tlv_test
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import (
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"bytes"
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"io"
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"reflect"
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"testing"
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"github.com/btcsuite/btcd/btcec/v2"
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secp "github.com/decred/dcrd/dcrec/secp256k1/v4"
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"github.com/lightningnetwork/lnd/tlv"
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)
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type nodeAmts struct {
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nodeID *btcec.PublicKey
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amt1 uint64
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amt2 uint64
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}
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func ENodeAmts(w io.Writer, val interface{}, buf *[8]byte) error {
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if t, ok := val.(*nodeAmts); ok {
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if err := tlv.EPubKey(w, &t.nodeID, buf); err != nil {
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return err
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}
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if err := tlv.EUint64T(w, t.amt1, buf); err != nil {
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return err
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}
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return tlv.EUint64T(w, t.amt2, buf)
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}
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return tlv.NewTypeForEncodingErr(val, "nodeAmts")
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}
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func DNodeAmts(r io.Reader, val interface{}, buf *[8]byte, l uint64) error {
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if t, ok := val.(*nodeAmts); ok && l == 49 {
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if err := tlv.DPubKey(r, &t.nodeID, buf, 33); err != nil {
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return err
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}
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if err := tlv.DUint64(r, &t.amt1, buf, 8); err != nil {
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return err
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}
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return tlv.DUint64(r, &t.amt2, buf, 8)
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}
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return tlv.NewTypeForDecodingErr(val, "nodeAmts", l, 49)
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}
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type N1 struct {
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amt uint64
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scid uint64
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nodeAmts nodeAmts
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cltvDelta uint16
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alias []byte
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stream *tlv.Stream
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}
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func (n *N1) sizeAmt() uint64 {
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return tlv.SizeTUint64(n.amt)
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}
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func NewN1() *N1 {
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n := new(N1)
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n.stream = tlv.MustNewStream(
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tlv.MakeDynamicRecord(
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1, &n.amt, n.sizeAmt, tlv.ETUint64, tlv.DTUint64,
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),
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tlv.MakePrimitiveRecord(2, &n.scid),
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tlv.MakeStaticRecord(3, &n.nodeAmts, 49, ENodeAmts, DNodeAmts),
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tlv.MakePrimitiveRecord(254, &n.cltvDelta),
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tlv.MakePrimitiveRecord(401, &n.alias),
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)
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return n
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}
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func (n *N1) Encode(w io.Writer) error {
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return n.stream.Encode(w)
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}
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func (n *N1) Decode(r io.Reader) error {
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return n.stream.Decode(r)
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}
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type N2 struct {
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amt uint64
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cltvExpiry uint32
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stream *tlv.Stream
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}
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func (n *N2) sizeAmt() uint64 {
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return tlv.SizeTUint64(n.amt)
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}
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func (n *N2) sizeCltv() uint64 {
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return tlv.SizeTUint32(n.cltvExpiry)
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}
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func NewN2() *N2 {
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n := new(N2)
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n.stream = tlv.MustNewStream(
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tlv.MakeDynamicRecord(
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0, &n.amt, n.sizeAmt, tlv.ETUint64, tlv.DTUint64,
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),
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tlv.MakeDynamicRecord(
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11, &n.cltvExpiry, n.sizeCltv, tlv.ETUint32, tlv.DTUint32,
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),
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)
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return n
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}
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func (n *N2) Encode(w io.Writer) error {
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return n.stream.Encode(w)
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}
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func (n *N2) Decode(r io.Reader) error {
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return n.stream.Decode(r)
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}
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var tlvDecodingFailureTests = []struct {
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name string
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bytes []byte
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expErr error
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// skipN2 if true, will cause the test to only be executed on N1.
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skipN2 bool
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}{
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{
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name: "type truncated",
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bytes: []byte{0xfd},
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expErr: io.ErrUnexpectedEOF,
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},
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{
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name: "type truncated",
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bytes: []byte{0xfd, 0x01},
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expErr: io.ErrUnexpectedEOF,
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},
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{
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name: "not minimally encoded type",
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bytes: []byte{0xfd, 0x00, 0x01}, // spec has trailing 0x00
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expErr: tlv.ErrVarIntNotCanonical,
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},
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{
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name: "missing length",
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bytes: []byte{0xfd, 0x01, 0x01},
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expErr: io.ErrUnexpectedEOF,
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},
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{
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name: "length truncated",
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bytes: []byte{0x0f, 0xfd},
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expErr: io.ErrUnexpectedEOF,
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},
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{
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name: "length truncated",
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bytes: []byte{0x0f, 0xfd, 0x26},
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expErr: io.ErrUnexpectedEOF,
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},
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{
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name: "missing value",
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bytes: []byte{0x0f, 0xfd, 0x26, 0x02},
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expErr: io.ErrUnexpectedEOF,
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},
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{
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name: "not minimally encoded length",
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bytes: []byte{0x0f, 0xfd, 0x00, 0x01}, // spec has trailing 0x00
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expErr: tlv.ErrVarIntNotCanonical,
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},
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{
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name: "value truncated",
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bytes: []byte{0x0f, 0xfd, 0x02, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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},
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expErr: io.ErrUnexpectedEOF,
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},
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{
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name: "greater than encoding length for n1's amt",
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bytes: []byte{0x01, 0x09, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
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expErr: tlv.NewTypeForDecodingErr(new(uint64), "uint64", 9, 8),
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skipN2: true,
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},
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{
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name: "encoding for n1's amt is not minimal",
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bytes: []byte{0x01, 0x01, 0x00},
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expErr: tlv.ErrTUintNotMinimal,
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skipN2: true,
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},
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{
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name: "encoding for n1's amt is not minimal",
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bytes: []byte{0x01, 0x02, 0x00, 0x01},
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expErr: tlv.ErrTUintNotMinimal,
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skipN2: true,
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},
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{
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name: "encoding for n1's amt is not minimal",
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bytes: []byte{0x01, 0x03, 0x00, 0x01, 0x00},
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expErr: tlv.ErrTUintNotMinimal,
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skipN2: true,
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},
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{
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name: "encoding for n1's amt is not minimal",
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bytes: []byte{0x01, 0x04, 0x00, 0x01, 0x00, 0x00},
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expErr: tlv.ErrTUintNotMinimal,
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skipN2: true,
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},
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{
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name: "encoding for n1's amt is not minimal",
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bytes: []byte{0x01, 0x05, 0x00, 0x01, 0x00, 0x00, 0x00},
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expErr: tlv.ErrTUintNotMinimal,
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skipN2: true,
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},
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{
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name: "encoding for n1's amt is not minimal",
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bytes: []byte{0x01, 0x06, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00},
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expErr: tlv.ErrTUintNotMinimal,
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skipN2: true,
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},
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{
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name: "encoding for n1's amt is not minimal",
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bytes: []byte{0x01, 0x07, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00},
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expErr: tlv.ErrTUintNotMinimal,
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skipN2: true,
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},
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{
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name: "encoding for n1's amt is not minimal",
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bytes: []byte{0x01, 0x08, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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expErr: tlv.ErrTUintNotMinimal,
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skipN2: true,
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},
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{
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name: "less than encoding length for n1's scid",
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bytes: []byte{0x02, 0x07, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01},
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expErr: tlv.NewTypeForDecodingErr(new(uint64), "uint64", 7, 8),
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skipN2: true,
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},
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{
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name: "less than encoding length for n1's scid",
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bytes: []byte{0x02, 0x09, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01},
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expErr: tlv.NewTypeForDecodingErr(new(uint64), "uint64", 9, 8),
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skipN2: true,
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},
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{
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name: "less than encoding length for n1's nodeAmts",
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bytes: []byte{0x03, 0x29,
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0x02, 0x3d, 0xa0, 0x92, 0xf6, 0x98, 0x0e, 0x58, 0xd2,
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0xc0, 0x37, 0x17, 0x31, 0x80, 0xe9, 0xa4, 0x65, 0x47,
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0x60, 0x26, 0xee, 0x50, 0xf9, 0x66, 0x95, 0x96, 0x3e,
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0x8e, 0xfe, 0x43, 0x6f, 0x54, 0xeb, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01,
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},
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expErr: tlv.NewTypeForDecodingErr(new(nodeAmts), "nodeAmts", 41, 49),
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skipN2: true,
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},
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{
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name: "less than encoding length for n1's nodeAmts",
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bytes: []byte{0x03, 0x30,
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0x02, 0x3d, 0xa0, 0x92, 0xf6, 0x98, 0x0e, 0x58, 0xd2,
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0xc0, 0x37, 0x17, 0x31, 0x80, 0xe9, 0xa4, 0x65, 0x47,
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0x60, 0x26, 0xee, 0x50, 0xf9, 0x66, 0x95, 0x96, 0x3e,
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0x8e, 0xfe, 0x43, 0x6f, 0x54, 0xeb, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x01,
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},
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expErr: tlv.NewTypeForDecodingErr(new(nodeAmts), "nodeAmts", 48, 49),
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skipN2: true,
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},
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{
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name: "n1's node_id is not a valid point",
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bytes: []byte{0x03, 0x31,
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0x04, 0x3d, 0xa0, 0x92, 0xf6, 0x98, 0x0e, 0x58, 0xd2,
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0xc0, 0x37, 0x17, 0x31, 0x80, 0xe9, 0xa4, 0x65, 0x47,
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0x60, 0x26, 0xee, 0x50, 0xf9, 0x66, 0x95, 0x96, 0x3e,
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0x8e, 0xfe, 0x43, 0x6f, 0x54, 0xeb, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x02,
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},
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expErr: secp.Error{
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Err: secp.ErrPubKeyInvalidFormat,
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Description: "invalid public key: unsupported format: 4",
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},
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skipN2: true,
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},
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{
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name: "greater than encoding length for n1's nodeAmts",
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bytes: []byte{0x03, 0x32,
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0x02, 0x3d, 0xa0, 0x92, 0xf6, 0x98, 0x0e, 0x58, 0xd2,
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0xc0, 0x37, 0x17, 0x31, 0x80, 0xe9, 0xa4, 0x65, 0x47,
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0x60, 0x26, 0xee, 0x50, 0xf9, 0x66, 0x95, 0x96, 0x3e,
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0x8e, 0xfe, 0x43, 0x6f, 0x54, 0xeb, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
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},
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expErr: tlv.NewTypeForDecodingErr(new(nodeAmts), "nodeAmts", 50, 49),
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skipN2: true,
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},
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{
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name: "less than encoding length for n1's cltvDelta",
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bytes: []byte{0xfd, 0x00, 0x0fe, 0x00},
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expErr: tlv.NewTypeForDecodingErr(new(uint16), "uint16", 0, 2),
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skipN2: true,
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},
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{
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name: "less than encoding length for n1's cltvDelta",
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bytes: []byte{0xfd, 0x00, 0xfe, 0x01, 0x01},
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expErr: tlv.NewTypeForDecodingErr(new(uint16), "uint16", 1, 2),
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skipN2: true,
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},
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{
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name: "greater than encoding length for n1's cltvDelta",
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bytes: []byte{0xfd, 0x00, 0xfe, 0x03, 0x01, 0x01, 0x01},
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expErr: tlv.NewTypeForDecodingErr(new(uint16), "uint16", 3, 2),
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skipN2: true,
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},
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{
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name: "valid records but invalid ordering",
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bytes: []byte{0x02, 0x08,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x26, 0x01,
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0x01, 0x2a,
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},
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expErr: tlv.ErrStreamNotCanonical,
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skipN2: true,
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},
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{
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name: "duplicate tlv type",
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bytes: []byte{0x02, 0x08,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x31, 0x02,
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0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x51,
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},
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expErr: tlv.ErrStreamNotCanonical,
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skipN2: true,
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},
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{
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name: "duplicate ignored tlv type",
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bytes: []byte{0x1f, 0x00, 0x1f, 0x01, 0x2a},
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expErr: tlv.ErrStreamNotCanonical,
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skipN2: true,
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},
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{
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name: "type wraparound",
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bytes: []byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00},
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expErr: tlv.ErrStreamNotCanonical,
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},
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{
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name: "absurd record length",
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bytes: []byte{0xfd, 0x01, 0x91, 0xfe, 0xff, 0xff, 0xff, 0xff},
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expErr: tlv.ErrRecordTooLarge,
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skipN2: true,
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},
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}
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// TestTLVDecodingSuccess asserts that the TLV parser fails to decode invalid
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// TLV streams.
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func TestTLVDecodingFailures(t *testing.T) {
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for _, test := range tlvDecodingFailureTests {
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t.Run(test.name, func(t *testing.T) {
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n1 := NewN1()
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r := bytes.NewReader(test.bytes)
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err := n1.Decode(r)
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if !reflect.DeepEqual(err, test.expErr) {
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t.Fatalf("expected N1 decoding failure: %v, "+
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"got: %v", test.expErr, err)
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}
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if test.skipN2 {
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return
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}
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n2 := NewN2()
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|
r = bytes.NewReader(test.bytes)
|
|
|
|
err = n2.Decode(r)
|
|
if !reflect.DeepEqual(err, test.expErr) {
|
|
t.Fatalf("expected N2 decoding failure: %v, "+
|
|
"got: %v", test.expErr, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
var tlvDecodingSuccessTests = []struct {
|
|
name string
|
|
bytes []byte
|
|
skipN2 bool
|
|
}{
|
|
{
|
|
name: "empty",
|
|
},
|
|
{
|
|
name: "unknown odd type",
|
|
bytes: []byte{0x21, 0x00},
|
|
},
|
|
{
|
|
name: "unknown odd type",
|
|
bytes: []byte{0xfd, 0x02, 0x01, 0x00},
|
|
},
|
|
{
|
|
name: "unknown odd type",
|
|
bytes: []byte{0xfd, 0x00, 0xfd, 0x00},
|
|
},
|
|
{
|
|
name: "unknown odd type",
|
|
bytes: []byte{0xfd, 0x00, 0xff, 0x00},
|
|
},
|
|
{
|
|
name: "unknown odd type",
|
|
bytes: []byte{0xfe, 0x02, 0x00, 0x00, 0x01, 0x00},
|
|
},
|
|
{
|
|
name: "unknown odd type",
|
|
bytes: []byte{0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00},
|
|
},
|
|
{
|
|
name: "N1 amt=0",
|
|
bytes: []byte{0x01, 0x00},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 amt=1",
|
|
bytes: []byte{0x01, 0x01, 0x01},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 amt=256",
|
|
bytes: []byte{0x01, 0x02, 0x01, 0x00},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 amt=65536",
|
|
bytes: []byte{0x01, 0x03, 0x01, 0x00, 0x00},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 amt=16777216",
|
|
bytes: []byte{0x01, 0x04, 0x01, 0x00, 0x00, 0x00},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 amt=4294967296",
|
|
bytes: []byte{0x01, 0x05, 0x01, 0x00, 0x00, 0x00, 0x00},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 amt=1099511627776",
|
|
bytes: []byte{0x01, 0x06, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 amt=281474976710656",
|
|
bytes: []byte{0x01, 0x07, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 amt=72057594037927936",
|
|
bytes: []byte{0x01, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 scid=0x0x550",
|
|
bytes: []byte{0x02, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x26},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 node_id=023da092f6980e58d2c037173180e9a465476026ee50f96695963e8efe436f54eb amount_msat_1=1 amount_msat_2=2",
|
|
bytes: []byte{0x03, 0x31,
|
|
0x02, 0x3d, 0xa0, 0x92, 0xf6, 0x98, 0x0e, 0x58, 0xd2,
|
|
0xc0, 0x37, 0x17, 0x31, 0x80, 0xe9, 0xa4, 0x65, 0x47,
|
|
0x60, 0x26, 0xee, 0x50, 0xf9, 0x66, 0x95, 0x96, 0x3e,
|
|
0x8e, 0xfe, 0x43, 0x6f, 0x54, 0xeb, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x02},
|
|
skipN2: true,
|
|
},
|
|
{
|
|
name: "N1 cltv_delta=550",
|
|
bytes: []byte{0xfd, 0x00, 0xfe, 0x02, 0x02, 0x26},
|
|
skipN2: true,
|
|
},
|
|
}
|
|
|
|
// TestTLVDecodingSuccess asserts that the TLV parser is able to successfully
|
|
// decode valid TLV streams.
|
|
func TestTLVDecodingSuccess(t *testing.T) {
|
|
for _, test := range tlvDecodingSuccessTests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
n1 := NewN1()
|
|
r := bytes.NewReader(test.bytes)
|
|
|
|
err := n1.Decode(r)
|
|
if err != nil {
|
|
t.Fatalf("expected N1 decoding success, got: %v",
|
|
err)
|
|
}
|
|
|
|
if test.skipN2 {
|
|
return
|
|
}
|
|
|
|
n2 := NewN2()
|
|
r = bytes.NewReader(test.bytes)
|
|
|
|
err = n2.Decode(r)
|
|
if err != nil {
|
|
t.Fatalf("expected N2 decoding success, got: %v",
|
|
err)
|
|
}
|
|
})
|
|
}
|
|
}
|