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72 lines
2.0 KiB
Go
72 lines
2.0 KiB
Go
package itest
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import (
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"github.com/btcsuite/btcd/btcutil"
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"github.com/lightningnetwork/lnd/lnrpc"
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"github.com/lightningnetwork/lnd/lntest"
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"github.com/stretchr/testify/require"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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)
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// testLookupHtlcResolution checks that `LookupHtlcResolution` returns the
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// correct HTLC information.
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func testLookupHtlcResolution(ht *lntest.HarnessTest) {
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const chanAmt = btcutil.Amount(1000000)
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alice := ht.Alice
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carol := ht.NewNode("Carol", []string{
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"--store-final-htlc-resolutions",
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})
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ht.EnsureConnected(alice, carol)
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// Open a channel between Alice and Carol.
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cp := ht.OpenChannel(
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alice, carol, lntest.OpenChannelParams{Amt: chanAmt},
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)
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// Channel should be ready for payments.
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const payAmt = 100
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// Create an invoice.
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invoice := &lnrpc.Invoice{
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Memo: "alice to carol htlc lookup",
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RPreimage: ht.Random32Bytes(),
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Value: payAmt,
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}
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// Carol adds the invoice to her database.
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resp := carol.RPC.AddInvoice(invoice)
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// Subscribe the invoice.
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stream := carol.RPC.SubscribeSingleInvoice(resp.RHash)
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// Alice pays Carol's invoice.
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ht.CompletePaymentRequests(alice, []string{resp.PaymentRequest})
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// Carol waits until the invoice is settled.
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ht.AssertInvoiceState(stream, lnrpc.Invoice_SETTLED)
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// Get the channel using the assert function.
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//
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// TODO(yy): make `ht.OpenChannel` return lnrpc.Channel instead of
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// lnrpc.ChannelPoint.
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channel := ht.AssertChannelExists(carol, cp)
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// Lookup the HTLC and assert the htlc is settled offchain.
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req := &lnrpc.LookupHtlcResolutionRequest{
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ChanId: channel.ChanId,
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HtlcIndex: 0,
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}
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// Check that Alice will get an error from LookupHtlcResolution.
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err := alice.RPC.LookupHtlcResolutionAssertErr(req)
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gErr := status.Convert(err)
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require.Equal(ht, codes.Unavailable, gErr.Code())
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// Check that Carol can get the final htlc info.
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finalHTLC := carol.RPC.LookupHtlcResolution(req)
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require.True(ht, finalHTLC.Settled, "htlc should be settled")
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require.True(ht, finalHTLC.Offchain, "htlc should be Offchain")
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}
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