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itest: test PSBT funding flow with raw final TX

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As we already create two channels in our PSBT funding flow itest we can
easily just submit the final transaction for the second channel in the
raw wire format to test this new functionality.
This commit is contained in:
Oliver Gugger 2020-09-07 18:02:47 +02:00
parent 5375f88b55
commit 107e135df9
No known key found for this signature in database
GPG Key ID: 8E4256593F177720
1 changed files with 11 additions and 6 deletions
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17
lntest/itest/lnd_psbt_test.go
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@ -14,6 +14,7 @@ import (
"github.com/lightningnetwork/lnd"
"github.com/lightningnetwork/lnd/lnrpc"
"github.com/lightningnetwork/lnd/lntest"
"github.com/stretchr/testify/require"
)
// testPsbtChanFunding makes sure a channel can be opened between carol and dave
@ -119,14 +120,14 @@ func testPsbtChanFunding(net *lntest.NetworkHarness, t *harnessTest) {
// encoded in the PSBT. We'll let the miner do it and convert the final
// TX into a PSBT, that's way easier than assembling a PSBT manually.
allOuts := append(packet.UnsignedTx.TxOut, packet2.UnsignedTx.TxOut...)
tx, err := net.Miner.CreateTransaction(allOuts, 5, true)
finalTx, err := net.Miner.CreateTransaction(allOuts, 5, true)
if err != nil {
t.Fatalf("unable to create funding transaction: %v", err)
}
// The helper function splits the final TX into the non-witness data
// encoded in a PSBT and the witness data returned separately.
unsignedPsbt, scripts, witnesses, err := createPsbtFromSignedTx(tx)
unsignedPsbt, scripts, witnesses, err := createPsbtFromSignedTx(finalTx)
if err != nil {
t.Fatalf("unable to convert funding transaction into PSBT: %v",
err)
@ -185,7 +186,7 @@ func testPsbtChanFunding(net *lntest.NetworkHarness, t *harnessTest) {
// complete and signed transaction that can be finalized. We'll trick
// a bit by putting the script sig back directly, because we know we
// will only get non-witness outputs from the miner wallet.
for idx := range tx.TxIn {
for idx := range finalTx.TxIn {
if len(witnesses[idx]) > 0 {
t.Fatalf("unexpected witness inputs in wallet TX")
}
@ -239,12 +240,16 @@ func testPsbtChanFunding(net *lntest.NetworkHarness, t *harnessTest) {
t.Fatalf("unexpected txes in mempool: %v", mempool)
}
// Let's progress the second channel now.
// Let's progress the second channel now. This time we'll use the raw
// wire format transaction directly.
buf.Reset()
err = finalTx.Serialize(&buf)
require.NoError(t.t, err)
_, err = carol.FundingStateStep(ctxb, &lnrpc.FundingTransitionMsg{
Trigger: &lnrpc.FundingTransitionMsg_PsbtFinalize{
PsbtFinalize: &lnrpc.FundingPsbtFinalize{
PendingChanId: pendingChanID2[:],
SignedPsbt: buf.Bytes(),
FinalRawTx: buf.Bytes(),
},
},
})
@ -275,7 +280,7 @@ func testPsbtChanFunding(net *lntest.NetworkHarness, t *harnessTest) {
// Great, now we can mine a block to get the transaction confirmed, then
// wait for the new channel to be propagated through the network.
txHash := tx.TxHash()
txHash := finalTx.TxHash()
block := mineBlocks(t, net, 6, 1)[0]
assertTxInBlock(t, block, &txHash)
ctxt, cancel = context.WithTimeout(ctxb, defaultTimeout)