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@ -694,140 +694,6 @@ func testPreimagePush(t *testing.T) {
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require.NoError(t, <-errChan)
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}
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// TestExpiryBeforeReveal tests the case where the on-chain HTLC expires before
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// we have revealed our preimage, demonstrating that we do not reveal our
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// preimage once we've reached our expiry height.
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func TestExpiryBeforeReveal(t *testing.T) {
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t.Run("stable protocol", func(t *testing.T) {
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testExpiryBeforeReveal(t)
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})
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// Note that there's no point of testing this case with the new
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// protocol where we use taproot htlc and attempt MuSig2 sweep. The
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// reason is that the preimage is revealed to the server once the
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// htlc is confirmed in order to facilitate the cooperative signing of
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// the sweep transaction.
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}
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func testExpiryBeforeReveal(t *testing.T) {
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defer test.Guard(t)()
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lnd := test.NewMockLnd()
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ctx := test.NewContext(t, lnd)
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server := newServerMock(lnd)
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testReq := *testRequest
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// Set on-chain HTLC CLTV.
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testReq.Expiry = ctx.Lnd.Height + testLoopOutMinOnChainCltvDelta
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// Set our fee estimate to higher than our max miner fee will allow.
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lnd.SetFeeEstimate(testReq.SweepConfTarget, chainfee.SatPerKWeight(
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testReq.MaxMinerFee*2,
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))
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// Setup the cfg using mock server and init a loop out request.
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cfg := newSwapConfig(
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&lnd.LndServices, newStoreMock(t), server,
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)
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initResult, err := newLoopOutSwap(
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context.Background(), cfg, ctx.Lnd.Height, &testReq,
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)
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require.NoError(t, err)
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swap := initResult.swap
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// Set up the required dependencies to execute the swap.
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sweeper := &sweep.Sweeper{Lnd: &lnd.LndServices}
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blockEpochChan := make(chan interface{})
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statusChan := make(chan SwapInfo)
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expiryChan := make(chan time.Time)
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timerFactory := func(_ time.Duration) <-chan time.Time {
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return expiryChan
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}
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errChan := make(chan error)
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go func() {
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err := swap.execute(context.Background(), &executeConfig{
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statusChan: statusChan,
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blockEpochChan: blockEpochChan,
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timerFactory: timerFactory,
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sweeper: sweeper,
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verifySchnorrSig: mockVerifySchnorrSigFail,
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}, ctx.Lnd.Height)
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if err != nil {
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log.Error(err)
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}
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errChan <- err
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}()
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// The swap should be found in its initial state.
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cfg.store.(*storeMock).assertLoopOutStored()
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state := <-statusChan
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require.Equal(t, loopdb.StateInitiated, state.State)
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// We'll then pay both the swap and prepay invoice, which should trigger
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// the server to publish the on-chain HTLC.
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signalSwapPaymentResult := ctx.AssertPaid(swapInvoiceDesc)
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signalPrepaymentResult := ctx.AssertPaid(prepayInvoiceDesc)
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signalSwapPaymentResult(nil)
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signalPrepaymentResult(nil)
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// Notify the confirmation notification for the HTLC.
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ctx.AssertRegisterConf(false, defaultConfirmations)
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// Advance the block height to get the HTLC confirmed.
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height := ctx.Lnd.Height + 1
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blockEpochChan <- height
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htlcTx := wire.NewMsgTx(2)
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htlcTx.AddTxOut(&wire.TxOut{
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Value: int64(swap.AmountRequested),
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PkScript: swap.htlc.PkScript,
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})
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ctx.NotifyConf(htlcTx)
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// The client should then register for a spend of the HTLC and attempt
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// to sweep it using the custom confirmation target.
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ctx.AssertRegisterSpendNtfn(swap.htlc.PkScript)
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// Assert that we made a query to track our payment, as required for
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// preimage push tracking.
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ctx.AssertTrackPayment()
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// Tick the expiry channel. Because our max miner fee is too high, we
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// won't attempt a sweep at this point.
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expiryChan <- testTime
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// Since we don't have a reliable mechanism to non-intrusively avoid
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// races by setting the fee estimate too soon, let's sleep here a bit
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// to ensure the first sweep fails.
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time.Sleep(500 * time.Millisecond)
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// Now we decrease our conf target to less than our max miner fee.
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lnd.SetFeeEstimate(testReq.SweepConfTarget, chainfee.SatPerKWeight(
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testReq.MaxMinerFee/2,
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))
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// Advance the block height to the point where we would do timeout
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// instead of pushing the preimage.
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blockEpochChan <- testReq.Expiry + height
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// Tick our expiry channel again to trigger another sweep attempt.
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expiryChan <- testTime
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// We should see our swap marked as failed.
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cfg.store.(*storeMock).assertLoopOutState(
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loopdb.StateFailTimeout,
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)
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status := <-statusChan
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require.Equal(
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t, status.State, loopdb.StateFailTimeout,
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)
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require.Nil(t, <-errChan)
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}
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// TestFailedOffChainCancelation tests sending of a cancelation message to
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// the server when a swap fails due to off-chain routing.
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func TestFailedOffChainCancelation(t *testing.T) {
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George Tsagkarelis
1 year ago
committed by
GitHub