fa010de548
This commit adds a test context for invoice registry and additionally passed in a payload object to NotifyExitHopHtlc. This makes the test match the reality better where a payload is always provided.
672 lines
17 KiB
Go
672 lines
17 KiB
Go
package invoices
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import (
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"io/ioutil"
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"os"
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"testing"
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"time"
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"github.com/lightningnetwork/lnd/channeldb"
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"github.com/lightningnetwork/lnd/lntypes"
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"github.com/lightningnetwork/lnd/lnwire"
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"github.com/lightningnetwork/lnd/record"
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)
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var (
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testTimeout = 5 * time.Second
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preimage = lntypes.Preimage{
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
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}
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hash = preimage.Hash()
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testHtlcExpiry = uint32(5)
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testInvoiceCltvDelta = uint32(4)
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testFinalCltvRejectDelta = int32(4)
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testCurrentHeight = int32(1)
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testFeatures = lnwire.NewFeatureVector(
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nil, lnwire.Features,
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)
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testPayload = &mockPayload{}
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)
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var (
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testInvoiceAmt = lnwire.MilliSatoshi(100000)
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testInvoice = &channeldb.Invoice{
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Terms: channeldb.ContractTerm{
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PaymentPreimage: preimage,
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Value: lnwire.MilliSatoshi(100000),
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Features: testFeatures,
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},
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}
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testHodlInvoice = &channeldb.Invoice{
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Terms: channeldb.ContractTerm{
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PaymentPreimage: channeldb.UnknownPreimage,
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Value: testInvoiceAmt,
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Features: testFeatures,
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},
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}
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)
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type testContext struct {
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registry *InvoiceRegistry
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cleanup func()
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t *testing.T
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}
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func newTestContext(t *testing.T) *testContext {
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cdb, cleanup, err := newDB()
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if err != nil {
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t.Fatal(err)
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}
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// Instantiate and start the invoice ctx.registry.
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registry := NewRegistry(cdb, testFinalCltvRejectDelta)
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err = registry.Start()
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if err != nil {
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cleanup()
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t.Fatal(err)
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}
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ctx := testContext{
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registry: registry,
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t: t,
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cleanup: func() {
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registry.Stop()
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cleanup()
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},
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}
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return &ctx
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}
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func getCircuitKey(htlcID uint64) channeldb.CircuitKey {
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return channeldb.CircuitKey{
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ChanID: lnwire.ShortChannelID{
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BlockHeight: 1, TxIndex: 2, TxPosition: 3,
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},
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HtlcID: htlcID,
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}
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}
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// TestSettleInvoice tests settling of an invoice and related notifications.
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func TestSettleInvoice(t *testing.T) {
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ctx := newTestContext(t)
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defer ctx.cleanup()
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allSubscriptions := ctx.registry.SubscribeNotifications(0, 0)
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defer allSubscriptions.Cancel()
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// Subscribe to the not yet existing invoice.
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subscription, err := ctx.registry.SubscribeSingleInvoice(hash)
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if err != nil {
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t.Fatal(err)
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}
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defer subscription.Cancel()
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if subscription.hash != hash {
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t.Fatalf("expected subscription for provided hash")
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}
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// Add the invoice.
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addIdx, err := ctx.registry.AddInvoice(testInvoice, hash)
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if err != nil {
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t.Fatal(err)
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}
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if addIdx != 1 {
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t.Fatalf("expected addIndex to start with 1, but got %v",
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addIdx)
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}
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// We expect the open state to be sent to the single invoice subscriber.
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select {
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case update := <-subscription.Updates:
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if update.State != channeldb.ContractOpen {
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t.Fatalf("expected state ContractOpen, but got %v",
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update.State)
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}
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case <-time.After(testTimeout):
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t.Fatal("no update received")
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}
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// We expect a new invoice notification to be sent out.
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select {
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case newInvoice := <-allSubscriptions.NewInvoices:
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if newInvoice.State != channeldb.ContractOpen {
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t.Fatalf("expected state ContractOpen, but got %v",
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newInvoice.State)
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}
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case <-time.After(testTimeout):
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t.Fatal("no update received")
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}
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hodlChan := make(chan interface{}, 1)
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// Try to settle invoice with an htlc that expires too soon.
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event, err := ctx.registry.NotifyExitHopHtlc(
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hash, testInvoice.Terms.Value,
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uint32(testCurrentHeight)+testInvoiceCltvDelta-1,
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testCurrentHeight, getCircuitKey(10), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatal(err)
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}
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if event.Preimage != nil {
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t.Fatal("expected cancel event")
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}
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if event.AcceptHeight != testCurrentHeight {
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t.Fatalf("expected acceptHeight %v, but got %v",
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testCurrentHeight, event.AcceptHeight)
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}
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// Settle invoice with a slightly higher amount.
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amtPaid := lnwire.MilliSatoshi(100500)
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_, err = ctx.registry.NotifyExitHopHtlc(
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hash, amtPaid, testHtlcExpiry, testCurrentHeight,
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getCircuitKey(0), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatal(err)
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}
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// We expect the settled state to be sent to the single invoice
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// subscriber.
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select {
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case update := <-subscription.Updates:
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if update.State != channeldb.ContractSettled {
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t.Fatalf("expected state ContractOpen, but got %v",
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update.State)
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}
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if update.AmtPaid != amtPaid {
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t.Fatal("invoice AmtPaid incorrect")
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}
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case <-time.After(testTimeout):
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t.Fatal("no update received")
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}
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// We expect a settled notification to be sent out.
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select {
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case settledInvoice := <-allSubscriptions.SettledInvoices:
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if settledInvoice.State != channeldb.ContractSettled {
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t.Fatalf("expected state ContractOpen, but got %v",
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settledInvoice.State)
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}
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case <-time.After(testTimeout):
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t.Fatal("no update received")
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}
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// Try to settle again with the same htlc id. We need this idempotent
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// behaviour after a restart.
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event, err = ctx.registry.NotifyExitHopHtlc(
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hash, amtPaid, testHtlcExpiry, testCurrentHeight,
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getCircuitKey(0), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatalf("unexpected NotifyExitHopHtlc error: %v", err)
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}
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if event.Preimage == nil {
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t.Fatal("expected settle event")
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}
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// Try to settle again with a new higher-valued htlc. This payment
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// should also be accepted, to prevent any change in behaviour for a
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// paid invoice that may open up a probe vector.
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event, err = ctx.registry.NotifyExitHopHtlc(
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hash, amtPaid+600, testHtlcExpiry, testCurrentHeight,
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getCircuitKey(1), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatalf("unexpected NotifyExitHopHtlc error: %v", err)
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}
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if event.Preimage == nil {
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t.Fatal("expected settle event")
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}
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// Try to settle again with a lower amount. This should fail just as it
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// would have failed if it were the first payment.
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event, err = ctx.registry.NotifyExitHopHtlc(
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hash, amtPaid-600, testHtlcExpiry, testCurrentHeight,
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getCircuitKey(2), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatalf("unexpected NotifyExitHopHtlc error: %v", err)
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}
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if event.Preimage != nil {
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t.Fatal("expected cancel event")
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}
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// Check that settled amount is equal to the sum of values of the htlcs
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// 0 and 1.
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inv, err := ctx.registry.LookupInvoice(hash)
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if err != nil {
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t.Fatal(err)
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}
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if inv.AmtPaid != amtPaid+amtPaid+600 {
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t.Fatal("amount incorrect")
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}
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// Try to cancel.
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err = ctx.registry.CancelInvoice(hash)
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if err != channeldb.ErrInvoiceAlreadySettled {
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t.Fatal("expected cancelation of a settled invoice to fail")
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}
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// As this is a direct sette, we expect nothing on the hodl chan.
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select {
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case <-hodlChan:
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t.Fatal("unexpected event")
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default:
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}
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}
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// TestCancelInvoice tests cancelation of an invoice and related notifications.
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func TestCancelInvoice(t *testing.T) {
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ctx := newTestContext(t)
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defer ctx.cleanup()
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allSubscriptions := ctx.registry.SubscribeNotifications(0, 0)
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defer allSubscriptions.Cancel()
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// Try to cancel the not yet existing invoice. This should fail.
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err := ctx.registry.CancelInvoice(hash)
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if err != channeldb.ErrInvoiceNotFound {
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t.Fatalf("expected ErrInvoiceNotFound, but got %v", err)
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}
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// Subscribe to the not yet existing invoice.
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subscription, err := ctx.registry.SubscribeSingleInvoice(hash)
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if err != nil {
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t.Fatal(err)
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}
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defer subscription.Cancel()
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if subscription.hash != hash {
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t.Fatalf("expected subscription for provided hash")
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}
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// Add the invoice.
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amt := lnwire.MilliSatoshi(100000)
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_, err = ctx.registry.AddInvoice(testInvoice, hash)
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if err != nil {
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t.Fatal(err)
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}
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// We expect the open state to be sent to the single invoice subscriber.
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select {
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case update := <-subscription.Updates:
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if update.State != channeldb.ContractOpen {
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t.Fatalf(
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"expected state ContractOpen, but got %v",
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update.State,
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)
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}
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case <-time.After(testTimeout):
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t.Fatal("no update received")
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}
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// We expect a new invoice notification to be sent out.
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select {
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case newInvoice := <-allSubscriptions.NewInvoices:
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if newInvoice.State != channeldb.ContractOpen {
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t.Fatalf(
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"expected state ContractOpen, but got %v",
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newInvoice.State,
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)
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}
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case <-time.After(testTimeout):
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t.Fatal("no update received")
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}
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// Cancel invoice.
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err = ctx.registry.CancelInvoice(hash)
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if err != nil {
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t.Fatal(err)
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}
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// We expect the canceled state to be sent to the single invoice
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// subscriber.
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select {
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case update := <-subscription.Updates:
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if update.State != channeldb.ContractCanceled {
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t.Fatalf(
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"expected state ContractCanceled, but got %v",
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update.State,
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)
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}
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case <-time.After(testTimeout):
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t.Fatal("no update received")
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}
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// We expect no cancel notification to be sent to all invoice
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// subscribers (backwards compatibility).
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// Try to cancel again.
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err = ctx.registry.CancelInvoice(hash)
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if err != nil {
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t.Fatal("expected cancelation of a canceled invoice to succeed")
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}
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// Notify arrival of a new htlc paying to this invoice. This should
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// result in a cancel event.
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hodlChan := make(chan interface{})
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event, err := ctx.registry.NotifyExitHopHtlc(
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hash, amt, testHtlcExpiry, testCurrentHeight,
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getCircuitKey(0), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatal("expected settlement of a canceled invoice to succeed")
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}
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if event.Preimage != nil {
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t.Fatal("expected cancel hodl event")
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}
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if event.AcceptHeight != testCurrentHeight {
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t.Fatalf("expected acceptHeight %v, but got %v",
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testCurrentHeight, event.AcceptHeight)
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}
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}
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// TestSettleHoldInvoice tests settling of a hold invoice and related
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// notifications.
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func TestSettleHoldInvoice(t *testing.T) {
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defer timeout(t)()
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cdb, cleanup, err := newDB()
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if err != nil {
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t.Fatal(err)
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}
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defer cleanup()
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// Instantiate and start the invoice ctx.registry.
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registry := NewRegistry(cdb, testFinalCltvRejectDelta)
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err = registry.Start()
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if err != nil {
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t.Fatal(err)
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}
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defer registry.Stop()
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allSubscriptions := registry.SubscribeNotifications(0, 0)
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defer allSubscriptions.Cancel()
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// Subscribe to the not yet existing invoice.
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subscription, err := registry.SubscribeSingleInvoice(hash)
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if err != nil {
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t.Fatal(err)
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}
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defer subscription.Cancel()
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if subscription.hash != hash {
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t.Fatalf("expected subscription for provided hash")
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}
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// Add the invoice.
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_, err = registry.AddInvoice(testHodlInvoice, hash)
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if err != nil {
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t.Fatal(err)
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}
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// We expect the open state to be sent to the single invoice subscriber.
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update := <-subscription.Updates
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if update.State != channeldb.ContractOpen {
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t.Fatalf("expected state ContractOpen, but got %v",
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update.State)
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}
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// We expect a new invoice notification to be sent out.
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newInvoice := <-allSubscriptions.NewInvoices
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if newInvoice.State != channeldb.ContractOpen {
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t.Fatalf("expected state ContractOpen, but got %v",
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newInvoice.State)
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}
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// Use slightly higher amount for accept/settle.
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amtPaid := lnwire.MilliSatoshi(100500)
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hodlChan := make(chan interface{}, 1)
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// NotifyExitHopHtlc without a preimage present in the invoice registry
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// should be possible.
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event, err := registry.NotifyExitHopHtlc(
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hash, amtPaid, testHtlcExpiry, testCurrentHeight,
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getCircuitKey(0), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatalf("expected settle to succeed but got %v", err)
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}
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if event != nil {
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t.Fatalf("expected htlc to be held")
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}
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// Test idempotency.
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event, err = registry.NotifyExitHopHtlc(
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hash, amtPaid, testHtlcExpiry, testCurrentHeight,
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getCircuitKey(0), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatalf("expected settle to succeed but got %v", err)
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}
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if event != nil {
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t.Fatalf("expected htlc to be held")
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}
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// Test replay at a higher height. We expect the same result because it
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// is a replay.
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event, err = registry.NotifyExitHopHtlc(
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hash, amtPaid, testHtlcExpiry, testCurrentHeight+10,
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getCircuitKey(0), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatalf("expected settle to succeed but got %v", err)
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}
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if event != nil {
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t.Fatalf("expected htlc to be held")
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}
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// Test a new htlc coming in that doesn't meet the final cltv delta
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// requirement. It should be rejected.
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event, err = registry.NotifyExitHopHtlc(
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hash, amtPaid, 1, testCurrentHeight,
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getCircuitKey(1), hodlChan, testPayload,
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)
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if err != nil {
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t.Fatalf("expected settle to succeed but got %v", err)
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}
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if event == nil || event.Preimage != nil {
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t.Fatalf("expected htlc to be canceled")
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}
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// We expect the accepted state to be sent to the single invoice
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// subscriber. For all invoice subscribers, we don't expect an update.
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// Those only get notified on settle.
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update = <-subscription.Updates
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if update.State != channeldb.ContractAccepted {
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t.Fatalf("expected state ContractAccepted, but got %v",
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update.State)
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}
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if update.AmtPaid != amtPaid {
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t.Fatal("invoice AmtPaid incorrect")
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}
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// Settling with preimage should succeed.
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err = registry.SettleHodlInvoice(preimage)
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if err != nil {
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t.Fatal("expected set preimage to succeed")
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}
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hodlEvent := (<-hodlChan).(HodlEvent)
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if *hodlEvent.Preimage != preimage {
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t.Fatal("unexpected preimage in hodl event")
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}
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if hodlEvent.AcceptHeight != testCurrentHeight {
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t.Fatalf("expected acceptHeight %v, but got %v",
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testCurrentHeight, event.AcceptHeight)
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}
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// We expect a settled notification to be sent out for both all and
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// single invoice subscribers.
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settledInvoice := <-allSubscriptions.SettledInvoices
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if settledInvoice.State != channeldb.ContractSettled {
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t.Fatalf("expected state ContractSettled, but got %v",
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settledInvoice.State)
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}
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if settledInvoice.AmtPaid != amtPaid {
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t.Fatalf("expected amount to be %v, but got %v",
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amtPaid, settledInvoice.AmtPaid)
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}
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update = <-subscription.Updates
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if update.State != channeldb.ContractSettled {
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t.Fatalf("expected state ContractSettled, but got %v",
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update.State)
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}
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// Idempotency.
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err = registry.SettleHodlInvoice(preimage)
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if err != channeldb.ErrInvoiceAlreadySettled {
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t.Fatalf("expected ErrInvoiceAlreadySettled but got %v", err)
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}
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// Try to cancel.
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err = registry.CancelInvoice(hash)
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if err == nil {
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t.Fatal("expected cancelation of a settled invoice to fail")
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}
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}
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|
|
// TestCancelHoldInvoice tests canceling of a hold invoice and related
|
|
// notifications.
|
|
func TestCancelHoldInvoice(t *testing.T) {
|
|
defer timeout(t)()
|
|
|
|
cdb, cleanup, err := newDB()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer cleanup()
|
|
|
|
// Instantiate and start the invoice ctx.registry.
|
|
registry := NewRegistry(cdb, testFinalCltvRejectDelta)
|
|
|
|
err = registry.Start()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer registry.Stop()
|
|
|
|
// Add the invoice.
|
|
_, err = registry.AddInvoice(testHodlInvoice, hash)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
amtPaid := lnwire.MilliSatoshi(100000)
|
|
hodlChan := make(chan interface{}, 1)
|
|
|
|
// NotifyExitHopHtlc without a preimage present in the invoice registry
|
|
// should be possible.
|
|
event, err := registry.NotifyExitHopHtlc(
|
|
hash, amtPaid, testHtlcExpiry, testCurrentHeight,
|
|
getCircuitKey(0), hodlChan, testPayload,
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("expected settle to succeed but got %v", err)
|
|
}
|
|
if event != nil {
|
|
t.Fatalf("expected htlc to be held")
|
|
}
|
|
|
|
// Cancel invoice.
|
|
err = registry.CancelInvoice(hash)
|
|
if err != nil {
|
|
t.Fatal("cancel invoice failed")
|
|
}
|
|
|
|
hodlEvent := (<-hodlChan).(HodlEvent)
|
|
if hodlEvent.Preimage != nil {
|
|
t.Fatal("expected cancel hodl event")
|
|
}
|
|
|
|
// Offering the same htlc again at a higher height should still result
|
|
// in a rejection. The accept height is expected to be the original
|
|
// accept height.
|
|
event, err = registry.NotifyExitHopHtlc(
|
|
hash, amtPaid, testHtlcExpiry, testCurrentHeight+1,
|
|
getCircuitKey(0), hodlChan, testPayload,
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("expected settle to succeed but got %v", err)
|
|
}
|
|
if event.Preimage != nil {
|
|
t.Fatalf("expected htlc to be canceled")
|
|
}
|
|
if event.AcceptHeight != testCurrentHeight {
|
|
t.Fatalf("expected acceptHeight %v, but got %v",
|
|
testCurrentHeight, event.AcceptHeight)
|
|
}
|
|
}
|
|
|
|
func newDB() (*channeldb.DB, func(), error) {
|
|
// First, create a temporary directory to be used for the duration of
|
|
// this test.
|
|
tempDirName, err := ioutil.TempDir("", "channeldb")
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
|
|
// Next, create channeldb for the first time.
|
|
cdb, err := channeldb.Open(tempDirName)
|
|
if err != nil {
|
|
os.RemoveAll(tempDirName)
|
|
return nil, nil, err
|
|
}
|
|
|
|
cleanUp := func() {
|
|
cdb.Close()
|
|
os.RemoveAll(tempDirName)
|
|
}
|
|
|
|
return cdb, cleanUp, nil
|
|
}
|
|
|
|
// TestUnknownInvoice tests that invoice registry returns an error when the
|
|
// invoice is unknown. This is to guard against returning a cancel hodl event
|
|
// for forwarded htlcs. In the link, NotifyExitHopHtlc is only called if we are
|
|
// the exit hop, but in htlcIncomingContestResolver it is called with forwarded
|
|
// htlc hashes as well.
|
|
func TestUnknownInvoice(t *testing.T) {
|
|
ctx := newTestContext(t)
|
|
defer ctx.cleanup()
|
|
|
|
// Notify arrival of a new htlc paying to this invoice. This should
|
|
// succeed.
|
|
hodlChan := make(chan interface{})
|
|
amt := lnwire.MilliSatoshi(100000)
|
|
_, err := ctx.registry.NotifyExitHopHtlc(
|
|
hash, amt, testHtlcExpiry, testCurrentHeight,
|
|
getCircuitKey(0), hodlChan, testPayload,
|
|
)
|
|
if err != channeldb.ErrInvoiceNotFound {
|
|
t.Fatal("expected invoice not found error")
|
|
}
|
|
}
|
|
|
|
type mockPayload struct {
|
|
mpp *record.MPP
|
|
}
|
|
|
|
func (p *mockPayload) MultiPath() *record.MPP {
|
|
return p.mpp
|
|
}
|