hltcswitch: increase timeout for bi-di payment test due to travis slowness

This commit temporary increases the timeout for the
TestChannelLinkBidirectionalOneHopPayments test in order to account for
the slowness of the travis instances that our tests are run on.

htlcswitch/test_utils.go

@@ -2,8 +2,8 @@ package htlcswitch
 
 import (
 	"bytes"
+	"crypto/rand"
 	"crypto/sha256"
-	"math/rand"
 	"testing"
 	"time"
 
@@ -65,6 +65,9 @@ func mockGetChanUpdateMessage() (*lnwire.ChannelUpdate, error) {
 func generateRandomBytes(n int) ([]byte, error) {
 	b := make([]byte, n)
 
+	// TODO(roasbeef): should use counter in tests (atomic) rather than
+	// this
+
 	_, err := rand.Read(b[:])
 	// Note that Err == nil only if we read len(b) bytes.
 	if err != nil {
@@ -273,10 +276,6 @@ func getChanID(msg lnwire.Message) lnwire.ChannelID {
 func generatePayment(invoiceAmt, htlcAmt btcutil.Amount, timelock uint32,
 	blob [lnwire.OnionPacketSize]byte) (*channeldb.Invoice, *lnwire.UpdateAddHTLC, error) {
 
-	// Initialize random seed with unix time in order to generate random
-	// preimage every time.
-	rand.Seed(time.Now().UTC().UnixNano())
-
 	var preimage [sha256.Size]byte
 	r, err := generateRandomBytes(sha256.Size)
 	if err != nil {
@@ -451,7 +450,7 @@ func (n *threeHopNetwork) makePayment(sendingPeer, receivingPeer Peer,
 	select {
 	case err := <-errChan:
 		return invoice, err
-	case <-time.After(50 * time.Second):
+	case <-time.After(5 * time.Minute):
 		return invoice, errors.New("htlc was not settled in time")
 	}
 }