lnd.xprv/channeldb/invoice_test.go
Joost Jager 064e8492de
cnct+htlcswitch+invoices: move invoice parameter check out of link
This commit is the final step in making the link unaware of invoices. It
now purely offers the htlc to the invoice registry and follows
instructions from the invoice registry about how and when to respond to
the htlc.

The change also fixes a bug where upon restart, hodl htlcs were
subjected to the invoice minimum cltv delta requirement again. If the
block height has increased in the mean while, the htlc would be canceled
back.

Furthermore the invoice registry interaction is aligned between link and
contract resolvers.
2019-05-15 14:42:12 +02:00

667 lines
18 KiB
Go

package channeldb
import (
"crypto/rand"
"reflect"
"testing"
"time"
"github.com/davecgh/go-spew/spew"
"github.com/lightningnetwork/lnd/lnwire"
)
func randInvoice(value lnwire.MilliSatoshi) (*Invoice, error) {
var pre [32]byte
if _, err := rand.Read(pre[:]); err != nil {
return nil, err
}
i := &Invoice{
// Use single second precision to avoid false positive test
// failures due to the monotonic time component.
CreationDate: time.Unix(time.Now().Unix(), 0),
Terms: ContractTerm{
PaymentPreimage: pre,
Value: value,
},
}
i.Memo = []byte("memo")
i.Receipt = []byte("receipt")
// Create a random byte slice of MaxPaymentRequestSize bytes to be used
// as a dummy paymentrequest, and determine if it should be set based
// on one of the random bytes.
var r [MaxPaymentRequestSize]byte
if _, err := rand.Read(r[:]); err != nil {
return nil, err
}
if r[0]&1 == 0 {
i.PaymentRequest = r[:]
} else {
i.PaymentRequest = []byte("")
}
return i, nil
}
func TestInvoiceWorkflow(t *testing.T) {
t.Parallel()
db, cleanUp, err := makeTestDB()
defer cleanUp()
if err != nil {
t.Fatalf("unable to make test db: %v", err)
}
// Create a fake invoice which we'll use several times in the tests
// below.
fakeInvoice := &Invoice{
// Use single second precision to avoid false positive test
// failures due to the monotonic time component.
CreationDate: time.Unix(time.Now().Unix(), 0),
}
fakeInvoice.Memo = []byte("memo")
fakeInvoice.Receipt = []byte("receipt")
fakeInvoice.PaymentRequest = []byte("")
copy(fakeInvoice.Terms.PaymentPreimage[:], rev[:])
fakeInvoice.Terms.Value = lnwire.NewMSatFromSatoshis(10000)
paymentHash := fakeInvoice.Terms.PaymentPreimage.Hash()
// Add the invoice to the database, this should succeed as there aren't
// any existing invoices within the database with the same payment
// hash.
if _, err := db.AddInvoice(fakeInvoice, paymentHash); err != nil {
t.Fatalf("unable to find invoice: %v", err)
}
// Attempt to retrieve the invoice which was just added to the
// database. It should be found, and the invoice returned should be
// identical to the one created above.
dbInvoice, err := db.LookupInvoice(paymentHash)
if err != nil {
t.Fatalf("unable to find invoice: %v", err)
}
if !reflect.DeepEqual(*fakeInvoice, dbInvoice) {
t.Fatalf("invoice fetched from db doesn't match original %v vs %v",
spew.Sdump(fakeInvoice), spew.Sdump(dbInvoice))
}
// The add index of the invoice retrieved from the database should now
// be fully populated. As this is the first index written to the DB,
// the addIndex should be 1.
if dbInvoice.AddIndex != 1 {
t.Fatalf("wrong add index: expected %v, got %v", 1,
dbInvoice.AddIndex)
}
// Settle the invoice, the version retrieved from the database should
// now have the settled bit toggle to true and a non-default
// SettledDate
payAmt := fakeInvoice.Terms.Value * 2
_, err = db.AcceptOrSettleInvoice(
paymentHash, payAmt, checkHtlcParameters,
)
if err != nil {
t.Fatalf("unable to settle invoice: %v", err)
}
dbInvoice2, err := db.LookupInvoice(paymentHash)
if err != nil {
t.Fatalf("unable to fetch invoice: %v", err)
}
if dbInvoice2.Terms.State != ContractSettled {
t.Fatalf("invoice should now be settled but isn't")
}
if dbInvoice2.SettleDate.IsZero() {
t.Fatalf("invoice should have non-zero SettledDate but isn't")
}
// Our 2x payment should be reflected, and also the settle index of 1
// should also have been committed for this index.
if dbInvoice2.AmtPaid != payAmt {
t.Fatalf("wrong amt paid: expected %v, got %v", payAmt,
dbInvoice2.AmtPaid)
}
if dbInvoice2.SettleIndex != 1 {
t.Fatalf("wrong settle index: expected %v, got %v", 1,
dbInvoice2.SettleIndex)
}
// Attempt to insert generated above again, this should fail as
// duplicates are rejected by the processing logic.
if _, err := db.AddInvoice(fakeInvoice, paymentHash); err != ErrDuplicateInvoice {
t.Fatalf("invoice insertion should fail due to duplication, "+
"instead %v", err)
}
// Attempt to look up a non-existent invoice, this should also fail but
// with a "not found" error.
var fakeHash [32]byte
if _, err := db.LookupInvoice(fakeHash); err != ErrInvoiceNotFound {
t.Fatalf("lookup should have failed, instead %v", err)
}
// Add 10 random invoices.
const numInvoices = 10
amt := lnwire.NewMSatFromSatoshis(1000)
invoices := make([]*Invoice, numInvoices+1)
invoices[0] = &dbInvoice2
for i := 1; i < len(invoices)-1; i++ {
invoice, err := randInvoice(amt)
if err != nil {
t.Fatalf("unable to create invoice: %v", err)
}
hash := invoice.Terms.PaymentPreimage.Hash()
if _, err := db.AddInvoice(invoice, hash); err != nil {
t.Fatalf("unable to add invoice %v", err)
}
invoices[i] = invoice
}
// Perform a scan to collect all the active invoices.
dbInvoices, err := db.FetchAllInvoices(false)
if err != nil {
t.Fatalf("unable to fetch all invoices: %v", err)
}
// The retrieve list of invoices should be identical as since we're
// using big endian, the invoices should be retrieved in ascending
// order (and the primary key should be incremented with each
// insertion).
for i := 0; i < len(invoices)-1; i++ {
if !reflect.DeepEqual(*invoices[i], dbInvoices[i]) {
t.Fatalf("retrieved invoices don't match %v vs %v",
spew.Sdump(invoices[i]),
spew.Sdump(dbInvoices[i]))
}
}
}
// TestInvoiceTimeSeries tests that newly added invoices invoices, as well as
// settled invoices are added to the database are properly placed in the add
// add or settle index which serves as an event time series.
func TestInvoiceAddTimeSeries(t *testing.T) {
t.Parallel()
db, cleanUp, err := makeTestDB()
defer cleanUp()
if err != nil {
t.Fatalf("unable to make test db: %v", err)
}
// We'll start off by creating 20 random invoices, and inserting them
// into the database.
const numInvoices = 20
amt := lnwire.NewMSatFromSatoshis(1000)
invoices := make([]Invoice, numInvoices)
for i := 0; i < len(invoices); i++ {
invoice, err := randInvoice(amt)
if err != nil {
t.Fatalf("unable to create invoice: %v", err)
}
paymentHash := invoice.Terms.PaymentPreimage.Hash()
if _, err := db.AddInvoice(invoice, paymentHash); err != nil {
t.Fatalf("unable to add invoice %v", err)
}
invoices[i] = *invoice
}
// With the invoices constructed, we'll now create a series of queries
// that we'll use to assert expected return values of
// InvoicesAddedSince.
addQueries := []struct {
sinceAddIndex uint64
resp []Invoice
}{
// If we specify a value of zero, we shouldn't get any invoices
// back.
{
sinceAddIndex: 0,
},
// If we specify a value well beyond the number of inserted
// invoices, we shouldn't get any invoices back.
{
sinceAddIndex: 99999999,
},
// Using an index of 1 should result in all values, but the
// first one being returned.
{
sinceAddIndex: 1,
resp: invoices[1:],
},
// If we use an index of 10, then we should retrieve the
// reaming 10 invoices.
{
sinceAddIndex: 10,
resp: invoices[10:],
},
}
for i, query := range addQueries {
resp, err := db.InvoicesAddedSince(query.sinceAddIndex)
if err != nil {
t.Fatalf("unable to query: %v", err)
}
if !reflect.DeepEqual(query.resp, resp) {
t.Fatalf("test #%v: expected %v, got %v", i,
spew.Sdump(query.resp), spew.Sdump(resp))
}
}
// We'll now only settle the latter half of each of those invoices.
for i := 10; i < len(invoices); i++ {
invoice := &invoices[i]
paymentHash := invoice.Terms.PaymentPreimage.Hash()
_, err := db.AcceptOrSettleInvoice(
paymentHash, 0, checkHtlcParameters,
)
if err != nil {
t.Fatalf("unable to settle invoice: %v", err)
}
}
invoices, err = db.FetchAllInvoices(false)
if err != nil {
t.Fatalf("unable to fetch invoices: %v", err)
}
// We'll slice off the first 10 invoices, as we only settled the last
// 10.
invoices = invoices[10:]
// We'll now prepare an additional set of queries to ensure the settle
// time series has properly been maintained in the database.
settleQueries := []struct {
sinceSettleIndex uint64
resp []Invoice
}{
// If we specify a value of zero, we shouldn't get any settled
// invoices back.
{
sinceSettleIndex: 0,
},
// If we specify a value well beyond the number of settled
// invoices, we shouldn't get any invoices back.
{
sinceSettleIndex: 99999999,
},
// Using an index of 1 should result in the final 10 invoices
// being returned, as we only settled those.
{
sinceSettleIndex: 1,
resp: invoices[1:],
},
}
for i, query := range settleQueries {
resp, err := db.InvoicesSettledSince(query.sinceSettleIndex)
if err != nil {
t.Fatalf("unable to query: %v", err)
}
if !reflect.DeepEqual(query.resp, resp) {
t.Fatalf("test #%v: expected %v, got %v", i,
spew.Sdump(query.resp), spew.Sdump(resp))
}
}
}
// TestDuplicateSettleInvoice tests that if we add a new invoice and settle it
// twice, then the second time we also receive the invoice that we settled as a
// return argument.
func TestDuplicateSettleInvoice(t *testing.T) {
t.Parallel()
db, cleanUp, err := makeTestDB()
defer cleanUp()
if err != nil {
t.Fatalf("unable to make test db: %v", err)
}
// We'll start out by creating an invoice and writing it to the DB.
amt := lnwire.NewMSatFromSatoshis(1000)
invoice, err := randInvoice(amt)
if err != nil {
t.Fatalf("unable to create invoice: %v", err)
}
payHash := invoice.Terms.PaymentPreimage.Hash()
if _, err := db.AddInvoice(invoice, payHash); err != nil {
t.Fatalf("unable to add invoice %v", err)
}
// With the invoice in the DB, we'll now attempt to settle the invoice.
dbInvoice, err := db.AcceptOrSettleInvoice(
payHash, amt, checkHtlcParameters,
)
if err != nil {
t.Fatalf("unable to settle invoice: %v", err)
}
// We'll update what we expect the settle invoice to be so that our
// comparison below has the correct assumption.
invoice.SettleIndex = 1
invoice.Terms.State = ContractSettled
invoice.AmtPaid = amt
invoice.SettleDate = dbInvoice.SettleDate
// We should get back the exact same invoice that we just inserted.
if !reflect.DeepEqual(dbInvoice, invoice) {
t.Fatalf("wrong invoice after settle, expected %v got %v",
spew.Sdump(invoice), spew.Sdump(dbInvoice))
}
// If we try to settle the invoice again, then we should get the very
// same invoice back, but with an error this time.
dbInvoice, err = db.AcceptOrSettleInvoice(
payHash, amt, checkHtlcParameters,
)
if err != ErrInvoiceAlreadySettled {
t.Fatalf("expected ErrInvoiceAlreadySettled")
}
if dbInvoice == nil {
t.Fatalf("invoice from db is nil after settle!")
}
invoice.SettleDate = dbInvoice.SettleDate
if !reflect.DeepEqual(dbInvoice, invoice) {
t.Fatalf("wrong invoice after second settle, expected %v got %v",
spew.Sdump(invoice), spew.Sdump(dbInvoice))
}
}
// TestQueryInvoices ensures that we can properly query the invoice database for
// invoices using different types of queries.
func TestQueryInvoices(t *testing.T) {
t.Parallel()
db, cleanUp, err := makeTestDB()
defer cleanUp()
if err != nil {
t.Fatalf("unable to make test db: %v", err)
}
// To begin the test, we'll add 50 invoices to the database. We'll
// assume that the index of the invoice within the database is the same
// as the amount of the invoice itself.
const numInvoices = 50
for i := lnwire.MilliSatoshi(1); i <= numInvoices; i++ {
invoice, err := randInvoice(i)
if err != nil {
t.Fatalf("unable to create invoice: %v", err)
}
paymentHash := invoice.Terms.PaymentPreimage.Hash()
if _, err := db.AddInvoice(invoice, paymentHash); err != nil {
t.Fatalf("unable to add invoice: %v", err)
}
// We'll only settle half of all invoices created.
if i%2 == 0 {
_, err := db.AcceptOrSettleInvoice(
paymentHash, i, checkHtlcParameters,
)
if err != nil {
t.Fatalf("unable to settle invoice: %v", err)
}
}
}
// We'll then retrieve the set of all invoices and pending invoices.
// This will serve useful when comparing the expected responses of the
// query with the actual ones.
invoices, err := db.FetchAllInvoices(false)
if err != nil {
t.Fatalf("unable to retrieve invoices: %v", err)
}
pendingInvoices, err := db.FetchAllInvoices(true)
if err != nil {
t.Fatalf("unable to retrieve pending invoices: %v", err)
}
// The test will consist of several queries along with their respective
// expected response. Each query response should match its expected one.
testCases := []struct {
query InvoiceQuery
expected []Invoice
}{
// Fetch all invoices with a single query.
{
query: InvoiceQuery{
NumMaxInvoices: numInvoices,
},
expected: invoices,
},
// Fetch all invoices with a single query, reversed.
{
query: InvoiceQuery{
Reversed: true,
NumMaxInvoices: numInvoices,
},
expected: invoices,
},
// Fetch the first 25 invoices.
{
query: InvoiceQuery{
NumMaxInvoices: numInvoices / 2,
},
expected: invoices[:numInvoices/2],
},
// Fetch the first 10 invoices, but this time iterating
// backwards.
{
query: InvoiceQuery{
IndexOffset: 11,
Reversed: true,
NumMaxInvoices: numInvoices,
},
expected: invoices[:10],
},
// Fetch the last 40 invoices.
{
query: InvoiceQuery{
IndexOffset: 10,
NumMaxInvoices: numInvoices,
},
expected: invoices[10:],
},
// Fetch all but the first invoice.
{
query: InvoiceQuery{
IndexOffset: 1,
NumMaxInvoices: numInvoices,
},
expected: invoices[1:],
},
// Fetch one invoice, reversed, with index offset 3. This
// should give us the second invoice in the array.
{
query: InvoiceQuery{
IndexOffset: 3,
Reversed: true,
NumMaxInvoices: 1,
},
expected: invoices[1:2],
},
// Same as above, at index 2.
{
query: InvoiceQuery{
IndexOffset: 2,
Reversed: true,
NumMaxInvoices: 1,
},
expected: invoices[0:1],
},
// Fetch one invoice, at index 1, reversed. Since invoice#1 is
// the very first, there won't be any left in a reverse search,
// so we expect no invoices to be returned.
{
query: InvoiceQuery{
IndexOffset: 1,
Reversed: true,
NumMaxInvoices: 1,
},
expected: nil,
},
// Same as above, but don't restrict the number of invoices to
// 1.
{
query: InvoiceQuery{
IndexOffset: 1,
Reversed: true,
NumMaxInvoices: numInvoices,
},
expected: nil,
},
// Fetch one invoice, reversed, with no offset set. We expect
// the last invoice in the response.
{
query: InvoiceQuery{
Reversed: true,
NumMaxInvoices: 1,
},
expected: invoices[numInvoices-1:],
},
// Fetch one invoice, reversed, the offset set at numInvoices+1.
// We expect this to return the last invoice.
{
query: InvoiceQuery{
IndexOffset: numInvoices + 1,
Reversed: true,
NumMaxInvoices: 1,
},
expected: invoices[numInvoices-1:],
},
// Same as above, at offset numInvoices.
{
query: InvoiceQuery{
IndexOffset: numInvoices,
Reversed: true,
NumMaxInvoices: 1,
},
expected: invoices[numInvoices-2 : numInvoices-1],
},
// Fetch one invoice, at no offset (same as offset 0). We
// expect the first invoice only in the response.
{
query: InvoiceQuery{
NumMaxInvoices: 1,
},
expected: invoices[:1],
},
// Same as above, at offset 1.
{
query: InvoiceQuery{
IndexOffset: 1,
NumMaxInvoices: 1,
},
expected: invoices[1:2],
},
// Same as above, at offset 2.
{
query: InvoiceQuery{
IndexOffset: 2,
NumMaxInvoices: 1,
},
expected: invoices[2:3],
},
// Same as above, at offset numInvoices-1. Expect the last
// invoice to be returned.
{
query: InvoiceQuery{
IndexOffset: numInvoices - 1,
NumMaxInvoices: 1,
},
expected: invoices[numInvoices-1:],
},
// Same as above, at offset numInvoices. No invoices should be
// returned, as there are no invoices after this offset.
{
query: InvoiceQuery{
IndexOffset: numInvoices,
NumMaxInvoices: 1,
},
expected: nil,
},
// Fetch all pending invoices with a single query.
{
query: InvoiceQuery{
PendingOnly: true,
NumMaxInvoices: numInvoices,
},
expected: pendingInvoices,
},
// Fetch the first 12 pending invoices.
{
query: InvoiceQuery{
PendingOnly: true,
NumMaxInvoices: numInvoices / 4,
},
expected: pendingInvoices[:len(pendingInvoices)/2],
},
// Fetch the first 5 pending invoices, but this time iterating
// backwards.
{
query: InvoiceQuery{
IndexOffset: 10,
PendingOnly: true,
Reversed: true,
NumMaxInvoices: numInvoices,
},
// Since we seek to the invoice with index 10 and
// iterate backwards, there should only be 5 pending
// invoices before it as every other invoice within the
// index is settled.
expected: pendingInvoices[:5],
},
// Fetch the last 15 invoices.
{
query: InvoiceQuery{
IndexOffset: 20,
PendingOnly: true,
NumMaxInvoices: numInvoices,
},
// Since we seek to the invoice with index 20, there are
// 30 invoices left. From these 30, only 15 of them are
// still pending.
expected: pendingInvoices[len(pendingInvoices)-15:],
},
}
for i, testCase := range testCases {
response, err := db.QueryInvoices(testCase.query)
if err != nil {
t.Fatalf("unable to query invoice database: %v", err)
}
if !reflect.DeepEqual(response.Invoices, testCase.expected) {
t.Fatalf("test #%d: query returned incorrect set of "+
"invoices: expcted %v, got %v", i,
spew.Sdump(response.Invoices),
spew.Sdump(testCase.expected))
}
}
}
func checkHtlcParameters(invoice *Invoice) error {
return nil
}