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/link_test.go

@@ -181,8 +181,8 @@ func TestChannelLinkBidirectionalOneHopPayments(t *testing.T) {
 
 	// Send max available payment number in both sides, thereby testing
 	// the property of channel link to cope with overflowing.
-	resultChan := make(chan *result)
 	count := 2 * lnwallet.MaxHTLCNumber
+	resultChan := make(chan *result, count)
 	for i := 0; i < count/2; i++ {
 		go func(i int) {
 			r := &result{
@@ -236,7 +236,7 @@ func TestChannelLinkBidirectionalOneHopPayments(t *testing.T) {
 			}
 			averageDelay += delay
 
-		case <-time.After(30 * time.Second):
+		case <-time.After(5 * time.Minute):
 			t.Fatalf("timeout: (%v/%v)", i+1, count)
 		}
 	}