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https://github.com/lightningnetwork/lnd.git
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lntest/test: move multi-hop error propagation into its own file
This commit is contained in:
carla
parent
b608683c9b
commit
5a172330d3
2 changed files with 342 additions and 326 deletions
342
lntest/itest/lnd_multi-hop-error-propagation.go
Normal file
342
lntest/itest/lnd_multi-hop-error-propagation.go
Normal file
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@ -0,0 +1,342 @@
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// +build rpctest
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package itest
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import (
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"context"
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"encoding/hex"
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"strings"
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"time"
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"github.com/lightningnetwork/lnd"
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"github.com/lightningnetwork/lnd/lnrpc"
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"github.com/lightningnetwork/lnd/lnrpc/routerrpc"
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"github.com/lightningnetwork/lnd/lntest"
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"github.com/lightningnetwork/lnd/lnwire"
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)
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func testHtlcErrorPropagation(net *lntest.NetworkHarness, t *harnessTest) {
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ctxb := context.Background()
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// In this test we wish to exercise the daemon's correct parsing,
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// handling, and propagation of errors that occur while processing a
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// multi-hop payment.
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const chanAmt = lnd.MaxBtcFundingAmount
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// First establish a channel with a capacity of 0.5 BTC between Alice
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// and Bob.
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ctxt, _ := context.WithTimeout(ctxb, channelOpenTimeout)
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chanPointAlice := openChannelAndAssert(
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ctxt, t, net, net.Alice, net.Bob,
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lntest.OpenChannelParams{
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Amt: chanAmt,
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},
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)
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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if err := net.Alice.WaitForNetworkChannelOpen(ctxt, chanPointAlice); err != nil {
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t.Fatalf("channel not seen by alice before timeout: %v", err)
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}
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cType, err := channelCommitType(net.Alice, chanPointAlice)
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if err != nil {
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t.Fatalf("unable to get channel type: %v", err)
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}
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commitFee := cType.calcStaticFee(0)
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assertBaseBalance := func() {
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balReq := &lnrpc.ChannelBalanceRequest{}
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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aliceBal, err := net.Alice.ChannelBalance(ctxt, balReq)
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if err != nil {
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t.Fatalf("unable to get channel balance: %v", err)
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}
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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bobBal, err := net.Bob.ChannelBalance(ctxt, balReq)
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if err != nil {
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t.Fatalf("unable to get channel balance: %v", err)
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}
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if aliceBal.Balance != int64(chanAmt-commitFee) {
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t.Fatalf("alice has an incorrect balance: expected %v got %v",
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int64(chanAmt-commitFee), aliceBal)
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}
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if bobBal.Balance != int64(chanAmt-commitFee) {
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t.Fatalf("bob has an incorrect balance: expected %v got %v",
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int64(chanAmt-commitFee), bobBal)
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}
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}
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// Since we'd like to test some multi-hop failure scenarios, we'll
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// introduce another node into our test network: Carol.
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carol, err := net.NewNode("Carol", nil)
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if err != nil {
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t.Fatalf("unable to create new nodes: %v", err)
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}
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// Next, we'll create a connection from Bob to Carol, and open a
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// channel between them so we have the topology: Alice -> Bob -> Carol.
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// The channel created will be of lower capacity that the one created
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// above.
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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if err := net.ConnectNodes(ctxt, net.Bob, carol); err != nil {
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t.Fatalf("unable to connect bob to carol: %v", err)
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}
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ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
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const bobChanAmt = lnd.MaxBtcFundingAmount
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chanPointBob := openChannelAndAssert(
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ctxt, t, net, net.Bob, carol,
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lntest.OpenChannelParams{
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Amt: chanAmt,
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},
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)
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// Ensure that Alice has Carol in her routing table before proceeding.
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nodeInfoReq := &lnrpc.NodeInfoRequest{
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PubKey: carol.PubKeyStr,
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}
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checkTableTimeout := time.After(time.Second * 10)
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checkTableTicker := time.NewTicker(100 * time.Millisecond)
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defer checkTableTicker.Stop()
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out:
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// TODO(roasbeef): make into async hook for node announcements
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for {
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select {
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case <-checkTableTicker.C:
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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_, err := net.Alice.GetNodeInfo(ctxt, nodeInfoReq)
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if err != nil && strings.Contains(err.Error(),
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"unable to find") {
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continue
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}
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break out
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case <-checkTableTimeout:
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t.Fatalf("carol's node announcement didn't propagate within " +
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"the timeout period")
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}
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}
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// With the channels, open we can now start to test our multi-hop error
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// scenarios. First, we'll generate an invoice from carol that we'll
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// use to test some error cases.
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const payAmt = 10000
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invoiceReq := &lnrpc.Invoice{
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Memo: "kek99",
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Value: payAmt,
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}
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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carolInvoice, err := carol.AddInvoice(ctxt, invoiceReq)
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if err != nil {
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t.Fatalf("unable to generate carol invoice: %v", err)
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}
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carolPayReq, err := carol.DecodePayReq(ctxb,
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&lnrpc.PayReqString{
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PayReq: carolInvoice.PaymentRequest,
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})
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if err != nil {
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t.Fatalf("unable to decode generated payment request: %v", err)
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}
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// Before we send the payment, ensure that the announcement of the new
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// channel has been processed by Alice.
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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if err := net.Alice.WaitForNetworkChannelOpen(ctxt, chanPointBob); err != nil {
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t.Fatalf("channel not seen by alice before timeout: %v", err)
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}
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// For the first scenario, we'll test the cancellation of an HTLC with
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// an unknown payment hash.
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// TODO(roasbeef): return failure response rather than failing entire
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// stream on payment error.
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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sendReq := &lnrpc.SendRequest{
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PaymentHashString: hex.EncodeToString(makeFakePayHash(t)),
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DestString: hex.EncodeToString(carol.PubKey[:]),
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Amt: payAmt,
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FinalCltvDelta: int32(carolPayReq.CltvExpiry),
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}
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resp, err := net.Alice.SendPaymentSync(ctxt, sendReq)
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if err != nil {
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t.Fatalf("unable to send payment: %v", err)
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}
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// The payment should have resulted in an error since we sent it with the
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// wrong payment hash.
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if resp.PaymentError == "" {
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t.Fatalf("payment should have been rejected due to invalid " +
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"payment hash")
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}
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assertLastHTLCError(
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t, net.Alice,
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lnrpc.Failure_INCORRECT_OR_UNKNOWN_PAYMENT_DETAILS,
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)
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// The balances of all parties should be the same as initially since
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// the HTLC was canceled.
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assertBaseBalance()
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// Next, we'll test the case of a recognized payHash but, an incorrect
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// value on the extended HTLC.
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htlcAmt := lnwire.NewMSatFromSatoshis(1000)
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sendReq = &lnrpc.SendRequest{
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PaymentHashString: hex.EncodeToString(carolInvoice.RHash),
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DestString: hex.EncodeToString(carol.PubKey[:]),
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Amt: int64(htlcAmt.ToSatoshis()), // 10k satoshis are expected.
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FinalCltvDelta: int32(carolPayReq.CltvExpiry),
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}
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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resp, err = net.Alice.SendPaymentSync(ctxt, sendReq)
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if err != nil {
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t.Fatalf("unable to send payment: %v", err)
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}
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// The payment should fail with an error since we sent 1k satoshis isn't of
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// 10k as was requested.
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if resp.PaymentError == "" {
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t.Fatalf("payment should have been rejected due to wrong " +
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"HTLC amount")
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}
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assertLastHTLCError(
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t, net.Alice,
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lnrpc.Failure_INCORRECT_OR_UNKNOWN_PAYMENT_DETAILS,
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)
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// The balances of all parties should be the same as initially since
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// the HTLC was canceled.
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assertBaseBalance()
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// Next we'll test an error that occurs mid-route due to an outgoing
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// link having insufficient capacity. In order to do so, we'll first
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// need to unbalance the link connecting Bob<->Carol.
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ctx, cancel := context.WithCancel(ctxb)
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defer cancel()
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bobPayStream, err := net.Bob.SendPayment(ctx)
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if err != nil {
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t.Fatalf("unable to create payment stream: %v", err)
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}
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// To do so, we'll push most of the funds in the channel over to
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// Alice's side, leaving on 10k satoshis of available balance for bob.
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// There's a max payment amount, so we'll have to do this
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// incrementally.
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chanReserve := int64(chanAmt / 100)
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amtToSend := int64(chanAmt) - chanReserve - 20000
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amtSent := int64(0)
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for amtSent != amtToSend {
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// We'll send in chunks of the max payment amount. If we're
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// about to send too much, then we'll only send the amount
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// remaining.
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toSend := int64(lnd.MaxPaymentMSat.ToSatoshis())
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if toSend+amtSent > amtToSend {
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toSend = amtToSend - amtSent
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}
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invoiceReq = &lnrpc.Invoice{
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Value: toSend,
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}
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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carolInvoice2, err := carol.AddInvoice(ctxt, invoiceReq)
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if err != nil {
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t.Fatalf("unable to generate carol invoice: %v", err)
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}
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if err := bobPayStream.Send(&lnrpc.SendRequest{
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PaymentRequest: carolInvoice2.PaymentRequest,
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}); err != nil {
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t.Fatalf("unable to send payment: %v", err)
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}
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if resp, err := bobPayStream.Recv(); err != nil {
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t.Fatalf("payment stream has been closed: %v", err)
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} else if resp.PaymentError != "" {
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t.Fatalf("bob's payment failed: %v", resp.PaymentError)
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}
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amtSent += toSend
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}
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// At this point, Alice has 50mil satoshis on her side of the channel,
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// but Bob only has 10k available on his side of the channel. So a
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// payment from Alice to Carol worth 100k satoshis should fail.
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invoiceReq = &lnrpc.Invoice{
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Value: 100000,
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}
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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carolInvoice3, err := carol.AddInvoice(ctxt, invoiceReq)
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if err != nil {
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t.Fatalf("unable to generate carol invoice: %v", err)
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}
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sendReq = &lnrpc.SendRequest{
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PaymentRequest: carolInvoice3.PaymentRequest,
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}
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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resp, err = net.Alice.SendPaymentSync(ctxt, sendReq)
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if err != nil {
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t.Fatalf("unable to send payment: %v", err)
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}
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if resp.PaymentError == "" {
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t.Fatalf("payment should fail due to insufficient "+
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"capacity: %v", err)
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}
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assertLastHTLCError(
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t, net.Alice, lnrpc.Failure_TEMPORARY_CHANNEL_FAILURE,
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)
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// Generate new invoice to not pay same invoice twice.
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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carolInvoice, err = carol.AddInvoice(ctxt, invoiceReq)
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if err != nil {
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t.Fatalf("unable to generate carol invoice: %v", err)
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}
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// For our final test, we'll ensure that if a target link isn't
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// available for what ever reason then the payment fails accordingly.
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//
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// We'll attempt to complete the original invoice we created with Carol
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// above, but before we do so, Carol will go offline, resulting in a
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// failed payment.
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shutdownAndAssert(net, t, carol)
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// Reset mission control to forget the temporary channel failure above.
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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_, err = net.Alice.RouterClient.ResetMissionControl(
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ctxt, &routerrpc.ResetMissionControlRequest{},
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)
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if err != nil {
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t.Fatalf("unable to reset mission control: %v", err)
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}
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sendReq = &lnrpc.SendRequest{
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PaymentRequest: carolInvoice.PaymentRequest,
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}
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ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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resp, err = net.Alice.SendPaymentSync(ctxt, sendReq)
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if err != nil {
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t.Fatalf("unable to send payment: %v", err)
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}
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if resp.PaymentError == "" {
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t.Fatalf("payment should have failed")
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}
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assertLastHTLCError(t, net.Alice, lnrpc.Failure_UNKNOWN_NEXT_PEER)
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// Finally, immediately close the channel. This function will also
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// block until the channel is closed and will additionally assert the
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// relevant channel closing post conditions.
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ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
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closeChannelAndAssert(ctxt, t, net, net.Alice, chanPointAlice, false)
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// Force close Bob's final channel.
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ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
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closeChannelAndAssert(ctxt, t, net, net.Bob, chanPointBob, true)
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// Cleanup by mining the force close and sweep transaction.
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cleanupForceClose(t, net, net.Bob, chanPointBob)
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}
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@ -9106,332 +9106,6 @@ func assertNodeNumChannels(t *harnessTest, node *lntest.HarnessNode,
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}
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}
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}
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}
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|
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func testHtlcErrorPropagation(net *lntest.NetworkHarness, t *harnessTest) {
|
|
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ctxb := context.Background()
|
|
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|
|
||||||
// In this test we wish to exercise the daemon's correct parsing,
|
|
||||||
// handling, and propagation of errors that occur while processing a
|
|
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// multi-hop payment.
|
|
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const chanAmt = lnd.MaxBtcFundingAmount
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|
||||||
|
|
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// First establish a channel with a capacity of 0.5 BTC between Alice
|
|
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// and Bob.
|
|
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ctxt, _ := context.WithTimeout(ctxb, channelOpenTimeout)
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|
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chanPointAlice := openChannelAndAssert(
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|
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ctxt, t, net, net.Alice, net.Bob,
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|
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lntest.OpenChannelParams{
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|
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Amt: chanAmt,
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|
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},
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|
||||||
)
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|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
if err := net.Alice.WaitForNetworkChannelOpen(ctxt, chanPointAlice); err != nil {
|
|
||||||
t.Fatalf("channel not seen by alice before timeout: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
cType, err := channelCommitType(net.Alice, chanPointAlice)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to get channel type: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
commitFee := cType.calcStaticFee(0)
|
|
||||||
assertBaseBalance := func() {
|
|
||||||
balReq := &lnrpc.ChannelBalanceRequest{}
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
aliceBal, err := net.Alice.ChannelBalance(ctxt, balReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to get channel balance: %v", err)
|
|
||||||
}
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
bobBal, err := net.Bob.ChannelBalance(ctxt, balReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to get channel balance: %v", err)
|
|
||||||
}
|
|
||||||
if aliceBal.Balance != int64(chanAmt-commitFee) {
|
|
||||||
t.Fatalf("alice has an incorrect balance: expected %v got %v",
|
|
||||||
int64(chanAmt-commitFee), aliceBal)
|
|
||||||
}
|
|
||||||
if bobBal.Balance != int64(chanAmt-commitFee) {
|
|
||||||
t.Fatalf("bob has an incorrect balance: expected %v got %v",
|
|
||||||
int64(chanAmt-commitFee), bobBal)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// Since we'd like to test some multi-hop failure scenarios, we'll
|
|
||||||
// introduce another node into our test network: Carol.
|
|
||||||
carol, err := net.NewNode("Carol", nil)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to create new nodes: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Next, we'll create a connection from Bob to Carol, and open a
|
|
||||||
// channel between them so we have the topology: Alice -> Bob -> Carol.
|
|
||||||
// The channel created will be of lower capacity that the one created
|
|
||||||
// above.
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
if err := net.ConnectNodes(ctxt, net.Bob, carol); err != nil {
|
|
||||||
t.Fatalf("unable to connect bob to carol: %v", err)
|
|
||||||
}
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
|
|
||||||
const bobChanAmt = lnd.MaxBtcFundingAmount
|
|
||||||
chanPointBob := openChannelAndAssert(
|
|
||||||
ctxt, t, net, net.Bob, carol,
|
|
||||||
lntest.OpenChannelParams{
|
|
||||||
Amt: chanAmt,
|
|
||||||
},
|
|
||||||
)
|
|
||||||
|
|
||||||
// Ensure that Alice has Carol in her routing table before proceeding.
|
|
||||||
nodeInfoReq := &lnrpc.NodeInfoRequest{
|
|
||||||
PubKey: carol.PubKeyStr,
|
|
||||||
}
|
|
||||||
checkTableTimeout := time.After(time.Second * 10)
|
|
||||||
checkTableTicker := time.NewTicker(100 * time.Millisecond)
|
|
||||||
defer checkTableTicker.Stop()
|
|
||||||
|
|
||||||
out:
|
|
||||||
// TODO(roasbeef): make into async hook for node announcements
|
|
||||||
for {
|
|
||||||
select {
|
|
||||||
case <-checkTableTicker.C:
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
_, err := net.Alice.GetNodeInfo(ctxt, nodeInfoReq)
|
|
||||||
if err != nil && strings.Contains(err.Error(),
|
|
||||||
"unable to find") {
|
|
||||||
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
break out
|
|
||||||
case <-checkTableTimeout:
|
|
||||||
t.Fatalf("carol's node announcement didn't propagate within " +
|
|
||||||
"the timeout period")
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// With the channels, open we can now start to test our multi-hop error
|
|
||||||
// scenarios. First, we'll generate an invoice from carol that we'll
|
|
||||||
// use to test some error cases.
|
|
||||||
const payAmt = 10000
|
|
||||||
invoiceReq := &lnrpc.Invoice{
|
|
||||||
Memo: "kek99",
|
|
||||||
Value: payAmt,
|
|
||||||
}
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
carolInvoice, err := carol.AddInvoice(ctxt, invoiceReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to generate carol invoice: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
carolPayReq, err := carol.DecodePayReq(ctxb,
|
|
||||||
&lnrpc.PayReqString{
|
|
||||||
PayReq: carolInvoice.PaymentRequest,
|
|
||||||
})
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to decode generated payment request: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Before we send the payment, ensure that the announcement of the new
|
|
||||||
// channel has been processed by Alice.
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
if err := net.Alice.WaitForNetworkChannelOpen(ctxt, chanPointBob); err != nil {
|
|
||||||
t.Fatalf("channel not seen by alice before timeout: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
// For the first scenario, we'll test the cancellation of an HTLC with
|
|
||||||
// an unknown payment hash.
|
|
||||||
// TODO(roasbeef): return failure response rather than failing entire
|
|
||||||
// stream on payment error.
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
sendReq := &lnrpc.SendRequest{
|
|
||||||
PaymentHashString: hex.EncodeToString(makeFakePayHash(t)),
|
|
||||||
DestString: hex.EncodeToString(carol.PubKey[:]),
|
|
||||||
Amt: payAmt,
|
|
||||||
FinalCltvDelta: int32(carolPayReq.CltvExpiry),
|
|
||||||
}
|
|
||||||
resp, err := net.Alice.SendPaymentSync(ctxt, sendReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to send payment: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
// The payment should have resulted in an error since we sent it with the
|
|
||||||
// wrong payment hash.
|
|
||||||
if resp.PaymentError == "" {
|
|
||||||
t.Fatalf("payment should have been rejected due to invalid " +
|
|
||||||
"payment hash")
|
|
||||||
}
|
|
||||||
|
|
||||||
assertLastHTLCError(
|
|
||||||
t, net.Alice,
|
|
||||||
lnrpc.Failure_INCORRECT_OR_UNKNOWN_PAYMENT_DETAILS,
|
|
||||||
)
|
|
||||||
|
|
||||||
// The balances of all parties should be the same as initially since
|
|
||||||
// the HTLC was canceled.
|
|
||||||
assertBaseBalance()
|
|
||||||
|
|
||||||
// Next, we'll test the case of a recognized payHash but, an incorrect
|
|
||||||
// value on the extended HTLC.
|
|
||||||
htlcAmt := lnwire.NewMSatFromSatoshis(1000)
|
|
||||||
sendReq = &lnrpc.SendRequest{
|
|
||||||
PaymentHashString: hex.EncodeToString(carolInvoice.RHash),
|
|
||||||
DestString: hex.EncodeToString(carol.PubKey[:]),
|
|
||||||
Amt: int64(htlcAmt.ToSatoshis()), // 10k satoshis are expected.
|
|
||||||
FinalCltvDelta: int32(carolPayReq.CltvExpiry),
|
|
||||||
}
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
resp, err = net.Alice.SendPaymentSync(ctxt, sendReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to send payment: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
// The payment should fail with an error since we sent 1k satoshis isn't of
|
|
||||||
// 10k as was requested.
|
|
||||||
if resp.PaymentError == "" {
|
|
||||||
t.Fatalf("payment should have been rejected due to wrong " +
|
|
||||||
"HTLC amount")
|
|
||||||
}
|
|
||||||
|
|
||||||
assertLastHTLCError(
|
|
||||||
t, net.Alice,
|
|
||||||
lnrpc.Failure_INCORRECT_OR_UNKNOWN_PAYMENT_DETAILS,
|
|
||||||
)
|
|
||||||
|
|
||||||
// The balances of all parties should be the same as initially since
|
|
||||||
// the HTLC was canceled.
|
|
||||||
assertBaseBalance()
|
|
||||||
|
|
||||||
// Next we'll test an error that occurs mid-route due to an outgoing
|
|
||||||
// link having insufficient capacity. In order to do so, we'll first
|
|
||||||
// need to unbalance the link connecting Bob<->Carol.
|
|
||||||
ctx, cancel := context.WithCancel(ctxb)
|
|
||||||
defer cancel()
|
|
||||||
|
|
||||||
bobPayStream, err := net.Bob.SendPayment(ctx)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to create payment stream: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
// To do so, we'll push most of the funds in the channel over to
|
|
||||||
// Alice's side, leaving on 10k satoshis of available balance for bob.
|
|
||||||
// There's a max payment amount, so we'll have to do this
|
|
||||||
// incrementally.
|
|
||||||
chanReserve := int64(chanAmt / 100)
|
|
||||||
amtToSend := int64(chanAmt) - chanReserve - 20000
|
|
||||||
amtSent := int64(0)
|
|
||||||
for amtSent != amtToSend {
|
|
||||||
// We'll send in chunks of the max payment amount. If we're
|
|
||||||
// about to send too much, then we'll only send the amount
|
|
||||||
// remaining.
|
|
||||||
toSend := int64(lnd.MaxPaymentMSat.ToSatoshis())
|
|
||||||
if toSend+amtSent > amtToSend {
|
|
||||||
toSend = amtToSend - amtSent
|
|
||||||
}
|
|
||||||
|
|
||||||
invoiceReq = &lnrpc.Invoice{
|
|
||||||
Value: toSend,
|
|
||||||
}
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
carolInvoice2, err := carol.AddInvoice(ctxt, invoiceReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to generate carol invoice: %v", err)
|
|
||||||
}
|
|
||||||
if err := bobPayStream.Send(&lnrpc.SendRequest{
|
|
||||||
PaymentRequest: carolInvoice2.PaymentRequest,
|
|
||||||
}); err != nil {
|
|
||||||
t.Fatalf("unable to send payment: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
if resp, err := bobPayStream.Recv(); err != nil {
|
|
||||||
t.Fatalf("payment stream has been closed: %v", err)
|
|
||||||
} else if resp.PaymentError != "" {
|
|
||||||
t.Fatalf("bob's payment failed: %v", resp.PaymentError)
|
|
||||||
}
|
|
||||||
|
|
||||||
amtSent += toSend
|
|
||||||
}
|
|
||||||
|
|
||||||
// At this point, Alice has 50mil satoshis on her side of the channel,
|
|
||||||
// but Bob only has 10k available on his side of the channel. So a
|
|
||||||
// payment from Alice to Carol worth 100k satoshis should fail.
|
|
||||||
invoiceReq = &lnrpc.Invoice{
|
|
||||||
Value: 100000,
|
|
||||||
}
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
carolInvoice3, err := carol.AddInvoice(ctxt, invoiceReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to generate carol invoice: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
sendReq = &lnrpc.SendRequest{
|
|
||||||
PaymentRequest: carolInvoice3.PaymentRequest,
|
|
||||||
}
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
resp, err = net.Alice.SendPaymentSync(ctxt, sendReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to send payment: %v", err)
|
|
||||||
}
|
|
||||||
if resp.PaymentError == "" {
|
|
||||||
t.Fatalf("payment should fail due to insufficient "+
|
|
||||||
"capacity: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
assertLastHTLCError(
|
|
||||||
t, net.Alice, lnrpc.Failure_TEMPORARY_CHANNEL_FAILURE,
|
|
||||||
)
|
|
||||||
|
|
||||||
// Generate new invoice to not pay same invoice twice.
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
carolInvoice, err = carol.AddInvoice(ctxt, invoiceReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to generate carol invoice: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
// For our final test, we'll ensure that if a target link isn't
|
|
||||||
// available for what ever reason then the payment fails accordingly.
|
|
||||||
//
|
|
||||||
// We'll attempt to complete the original invoice we created with Carol
|
|
||||||
// above, but before we do so, Carol will go offline, resulting in a
|
|
||||||
// failed payment.
|
|
||||||
shutdownAndAssert(net, t, carol)
|
|
||||||
|
|
||||||
// Reset mission control to forget the temporary channel failure above.
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
_, err = net.Alice.RouterClient.ResetMissionControl(
|
|
||||||
ctxt, &routerrpc.ResetMissionControlRequest{},
|
|
||||||
)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to reset mission control: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
sendReq = &lnrpc.SendRequest{
|
|
||||||
PaymentRequest: carolInvoice.PaymentRequest,
|
|
||||||
}
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
|
|
||||||
resp, err = net.Alice.SendPaymentSync(ctxt, sendReq)
|
|
||||||
if err != nil {
|
|
||||||
t.Fatalf("unable to send payment: %v", err)
|
|
||||||
}
|
|
||||||
|
|
||||||
if resp.PaymentError == "" {
|
|
||||||
t.Fatalf("payment should have failed")
|
|
||||||
}
|
|
||||||
|
|
||||||
assertLastHTLCError(t, net.Alice, lnrpc.Failure_UNKNOWN_NEXT_PEER)
|
|
||||||
|
|
||||||
// Finally, immediately close the channel. This function will also
|
|
||||||
// block until the channel is closed and will additionally assert the
|
|
||||||
// relevant channel closing post conditions.
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
|
|
||||||
closeChannelAndAssert(ctxt, t, net, net.Alice, chanPointAlice, false)
|
|
||||||
|
|
||||||
// Force close Bob's final channel.
|
|
||||||
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
|
|
||||||
closeChannelAndAssert(ctxt, t, net, net.Bob, chanPointBob, true)
|
|
||||||
|
|
||||||
// Cleanup by mining the force close and sweep transaction.
|
|
||||||
cleanupForceClose(t, net, net.Bob, chanPointBob)
|
|
||||||
}
|
|
||||||
|
|
||||||
// testRejectHTLC tests that a node can be created with the flag --rejecthtlc.
|
// testRejectHTLC tests that a node can be created with the flag --rejecthtlc.
|
||||||
// This means that the node will reject all forwarded HTLCs but can still
|
// This means that the node will reject all forwarded HTLCs but can still
|
||||||
// accept direct HTLCs as well as send HTLCs.
|
// accept direct HTLCs as well as send HTLCs.
|
||||||
|
|
|
||||||
Loading…
Add table
Reference in a new issue