lnd/channeldb/payments_test.go
bitromortac d5dd48fa71 channeldb/test: unit tests for payments query
Adds tests for the payments query, where different edge cases for
the index offsets and normal and reversed orders are tested.
2020-04-07 07:03:21 +02:00

441 lines
10 KiB
Go

package channeldb
import (
"bytes"
"fmt"
"math"
"math/rand"
"reflect"
"testing"
"time"
"github.com/btcsuite/btcd/btcec"
"github.com/davecgh/go-spew/spew"
"github.com/lightningnetwork/lnd/channeldb/kvdb"
"github.com/lightningnetwork/lnd/lntypes"
"github.com/lightningnetwork/lnd/record"
"github.com/lightningnetwork/lnd/routing/route"
"github.com/lightningnetwork/lnd/tlv"
)
var (
priv, _ = btcec.NewPrivateKey(btcec.S256())
pub = priv.PubKey()
tlvBytes = []byte{1, 2, 3}
tlvEncoder = tlv.StubEncoder(tlvBytes)
testHop1 = &route.Hop{
PubKeyBytes: route.NewVertex(pub),
ChannelID: 12345,
OutgoingTimeLock: 111,
AmtToForward: 555,
CustomRecords: record.CustomSet{
65536: []byte{},
80001: []byte{},
},
MPP: record.NewMPP(32, [32]byte{0x42}),
}
testHop2 = &route.Hop{
PubKeyBytes: route.NewVertex(pub),
ChannelID: 12345,
OutgoingTimeLock: 111,
AmtToForward: 555,
LegacyPayload: true,
}
testRoute = route.Route{
TotalTimeLock: 123,
TotalAmount: 1234567,
SourcePubKey: route.NewVertex(pub),
Hops: []*route.Hop{
testHop2,
testHop1,
},
}
)
func makeFakeInfo() (*PaymentCreationInfo, *HTLCAttemptInfo) {
var preimg lntypes.Preimage
copy(preimg[:], rev[:])
c := &PaymentCreationInfo{
PaymentHash: preimg.Hash(),
Value: 1000,
// Use single second precision to avoid false positive test
// failures due to the monotonic time component.
CreationTime: time.Unix(time.Now().Unix(), 0),
PaymentRequest: []byte(""),
}
a := &HTLCAttemptInfo{
AttemptID: 44,
SessionKey: priv,
Route: testRoute,
AttemptTime: time.Unix(100, 0),
}
return c, a
}
// randomBytes creates random []byte with length in range [minLen, maxLen)
func randomBytes(minLen, maxLen int) ([]byte, error) {
randBuf := make([]byte, minLen+rand.Intn(maxLen-minLen))
if _, err := rand.Read(randBuf); err != nil {
return nil, fmt.Errorf("Internal error. "+
"Cannot generate random string: %v", err)
}
return randBuf, nil
}
func TestSentPaymentSerialization(t *testing.T) {
t.Parallel()
c, s := makeFakeInfo()
var b bytes.Buffer
if err := serializePaymentCreationInfo(&b, c); err != nil {
t.Fatalf("unable to serialize creation info: %v", err)
}
newCreationInfo, err := deserializePaymentCreationInfo(&b)
if err != nil {
t.Fatalf("unable to deserialize creation info: %v", err)
}
if !reflect.DeepEqual(c, newCreationInfo) {
t.Fatalf("Payments do not match after "+
"serialization/deserialization %v vs %v",
spew.Sdump(c), spew.Sdump(newCreationInfo),
)
}
b.Reset()
if err := serializeHTLCAttemptInfo(&b, s); err != nil {
t.Fatalf("unable to serialize info: %v", err)
}
newWireInfo, err := deserializeHTLCAttemptInfo(&b)
if err != nil {
t.Fatalf("unable to deserialize info: %v", err)
}
newWireInfo.AttemptID = s.AttemptID
// First we verify all the records match up porperly, as they aren't
// able to be properly compared using reflect.DeepEqual.
err = assertRouteEqual(&s.Route, &newWireInfo.Route)
if err != nil {
t.Fatalf("Routes do not match after "+
"serialization/deserialization: %v", err)
}
// Clear routes to allow DeepEqual to compare the remaining fields.
newWireInfo.Route = route.Route{}
s.Route = route.Route{}
if !reflect.DeepEqual(s, newWireInfo) {
s.SessionKey.Curve = nil
newWireInfo.SessionKey.Curve = nil
t.Fatalf("Payments do not match after "+
"serialization/deserialization %v vs %v",
spew.Sdump(s), spew.Sdump(newWireInfo),
)
}
}
// assertRouteEquals compares to routes for equality and returns an error if
// they are not equal.
func assertRouteEqual(a, b *route.Route) error {
if !reflect.DeepEqual(a, b) {
return fmt.Errorf("HTLCAttemptInfos don't match: %v vs %v",
spew.Sdump(a), spew.Sdump(b))
}
return nil
}
func TestRouteSerialization(t *testing.T) {
t.Parallel()
var b bytes.Buffer
if err := SerializeRoute(&b, testRoute); err != nil {
t.Fatal(err)
}
r := bytes.NewReader(b.Bytes())
route2, err := DeserializeRoute(r)
if err != nil {
t.Fatal(err)
}
// First we verify all the records match up porperly, as they aren't
// able to be properly compared using reflect.DeepEqual.
err = assertRouteEqual(&testRoute, &route2)
if err != nil {
t.Fatalf("routes not equal: \n%v vs \n%v",
spew.Sdump(testRoute), spew.Sdump(route2))
}
}
// deletePayment removes a payment with paymentHash from the payments database.
func deletePayment(t *testing.T, db *DB, paymentHash lntypes.Hash) {
t.Helper()
err := kvdb.Update(db, func(tx kvdb.RwTx) error {
payments := tx.ReadWriteBucket(paymentsRootBucket)
err := payments.DeleteNestedBucket(paymentHash[:])
if err != nil {
return err
}
return nil
})
if err != nil {
t.Fatalf("could not delete "+
"payment: %v", err)
}
}
// TestQueryPayments tests retrieval of payments with forwards and reversed
// queries.
func TestQueryPayments(t *testing.T) {
// Define table driven test for QueryPayments.
// Test payments have sequence indices [1, 3, 4, 5, 6, 7].
tests := []struct {
name string
query PaymentsQuery
firstIndex uint64
lastIndex uint64
// expectedSeqNrs contains the set of sequence numbers we expect
// our query to return.
expectedSeqNrs []uint64
}{
{
name: "IndexOffset at the end of the payments range",
query: PaymentsQuery{
IndexOffset: 7,
MaxPayments: 7,
Reversed: false,
IncludeIncomplete: true,
},
firstIndex: 0,
lastIndex: 0,
expectedSeqNrs: nil,
},
{
name: "query in forwards order, start at beginning",
query: PaymentsQuery{
IndexOffset: 0,
MaxPayments: 2,
Reversed: false,
IncludeIncomplete: true,
},
firstIndex: 1,
lastIndex: 3,
expectedSeqNrs: []uint64{1, 3},
},
{
name: "query in forwards order, start at end, overflow",
query: PaymentsQuery{
IndexOffset: 6,
MaxPayments: 2,
Reversed: false,
IncludeIncomplete: true,
},
firstIndex: 7,
lastIndex: 7,
expectedSeqNrs: []uint64{7},
},
{
name: "start at offset index outside of payments",
query: PaymentsQuery{
IndexOffset: 20,
MaxPayments: 2,
Reversed: false,
IncludeIncomplete: true,
},
firstIndex: 0,
lastIndex: 0,
expectedSeqNrs: nil,
},
{
name: "overflow in forwards order",
query: PaymentsQuery{
IndexOffset: 4,
MaxPayments: math.MaxUint64,
Reversed: false,
IncludeIncomplete: true,
},
firstIndex: 5,
lastIndex: 7,
expectedSeqNrs: []uint64{5, 6, 7},
},
{
name: "start at offset index outside of payments, " +
"reversed order",
query: PaymentsQuery{
IndexOffset: 9,
MaxPayments: 2,
Reversed: true,
IncludeIncomplete: true,
},
firstIndex: 6,
lastIndex: 7,
expectedSeqNrs: []uint64{6, 7},
},
{
name: "query in reverse order, start at end",
query: PaymentsQuery{
IndexOffset: 0,
MaxPayments: 2,
Reversed: true,
IncludeIncomplete: true,
},
firstIndex: 6,
lastIndex: 7,
expectedSeqNrs: []uint64{6, 7},
},
{
name: "query in reverse order, starting in middle",
query: PaymentsQuery{
IndexOffset: 4,
MaxPayments: 2,
Reversed: true,
IncludeIncomplete: true,
},
firstIndex: 1,
lastIndex: 3,
expectedSeqNrs: []uint64{1, 3},
},
{
name: "query in reverse order, starting in middle, " +
"with underflow",
query: PaymentsQuery{
IndexOffset: 4,
MaxPayments: 5,
Reversed: true,
IncludeIncomplete: true,
},
firstIndex: 1,
lastIndex: 3,
expectedSeqNrs: []uint64{1, 3},
},
{
name: "all payments in reverse, order maintained",
query: PaymentsQuery{
IndexOffset: 0,
MaxPayments: 7,
Reversed: true,
IncludeIncomplete: true,
},
firstIndex: 1,
lastIndex: 7,
expectedSeqNrs: []uint64{1, 3, 4, 5, 6, 7},
},
{
name: "exclude incomplete payments",
query: PaymentsQuery{
IndexOffset: 0,
MaxPayments: 7,
Reversed: false,
IncludeIncomplete: false,
},
firstIndex: 0,
lastIndex: 0,
expectedSeqNrs: nil,
},
{
name: "query payments at index gap",
query: PaymentsQuery{
IndexOffset: 1,
MaxPayments: 7,
Reversed: false,
IncludeIncomplete: true,
},
firstIndex: 3,
lastIndex: 7,
expectedSeqNrs: []uint64{3, 4, 5, 6, 7},
},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
db, err := initDB()
if err != nil {
t.Fatalf("unable to init db: %v", err)
}
// Populate the database with a set of test payments.
numberOfPayments := 7
pControl := NewPaymentControl(db)
for i := 0; i < numberOfPayments; i++ {
// Generate a test payment.
info, _, _, err := genInfo()
if err != nil {
t.Fatalf("unable to create test "+
"payment: %v", err)
}
// Create a new payment entry in the database.
err = pControl.InitPayment(info.PaymentHash, info)
if err != nil {
t.Fatalf("unable to initialize "+
"payment in database: %v", err)
}
// Immediately delete the payment with index 2.
if i == 1 {
deletePayment(t, db, info.PaymentHash)
}
}
// Fetch all payments in the database.
allPayments, err := db.FetchPayments()
if err != nil {
t.Fatalf("payments could not be fetched from "+
"database: %v", err)
}
if len(allPayments) != 6 {
t.Fatalf("Number of payments received does not "+
"match expected one. Got %v, want %v.",
len(allPayments), 6)
}
querySlice, err := db.QueryPayments(tt.query)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if tt.firstIndex != querySlice.FirstIndexOffset ||
tt.lastIndex != querySlice.LastIndexOffset {
t.Errorf("First or last index does not match "+
"expected index. Want (%d, %d), got (%d, %d).",
tt.firstIndex, tt.lastIndex,
querySlice.FirstIndexOffset,
querySlice.LastIndexOffset)
}
if len(querySlice.Payments) != len(tt.expectedSeqNrs) {
t.Errorf("expected: %v payments, got: %v",
len(allPayments), len(querySlice.Payments))
}
for i, seqNr := range tt.expectedSeqNrs {
q := querySlice.Payments[i]
if seqNr != q.SequenceNum {
t.Errorf("sequence numbers do not match, "+
"got %v, want %v", q.SequenceNum, seqNr)
}
}
})
}
}