htlcswitch/mailbox_test: adds checks for reset and replay of pkts

This commit is contained in:
Conner Fromknecht 2018-02-15 15:44:20 -08:00
parent 9b00f83656
commit 3ae7772ecb
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GPG Key ID: 39DE78FBE6ACB0EF

@ -25,6 +25,7 @@ func TestMailBoxCouriers(t *testing.T) {
// We'll be adding 10 message of both types to the mailbox.
const numPackets = 10
const halfPackets = numPackets / 2
// We'll add a set of random packets to the mailbox.
sentPackets := make([]*htlcPacket, numPackets)
@ -96,4 +97,53 @@ func TestMailBoxCouriers(t *testing.T) {
t.Fatalf("recvd messages mismatched: expected %v, got %v",
spew.Sdump(sentMessages), spew.Sdump(recvdMessages))
}
// Now that we've received all of the intended msgs/pkts, ack back half
// of the packets.
for _, recvdPkt := range recvdPackets[:halfPackets] {
mailBox.AckPacket(recvdPkt.inKey())
}
// With the packets drained and partially acked, we reset the mailbox,
// simulating a link shutting down and then coming back up.
mailBox.ResetMessages()
mailBox.ResetPackets()
// Now, we'll use the same alternating strategy to read from our
// mailbox. All wire messages are dropped on startup, but any unacked
// packets will be replayed in the same order they were delivered
// initially.
recvdPackets2 := make([]*htlcPacket, 0, halfPackets)
for i := 0; i < 2*halfPackets; i++ {
timeout := time.After(time.Second * 5)
if i%2 == 0 {
select {
case <-timeout:
t.Fatalf("didn't recv pkt after timeout")
case pkt := <-mailBox.PacketOutBox():
recvdPackets2 = append(recvdPackets2, pkt)
}
} else {
select {
case <-mailBox.MessageOutBox():
t.Fatalf("should not receive wire msg after reset")
default:
}
}
}
// The number of packets we received should match the number of unacked
// packets left in the mailbox.
if halfPackets != len(recvdPackets2) {
t.Fatalf("expected %v packets instead got %v", halfPackets,
len(recvdPackets))
}
// Additionally, the set of packets should match exactly with the
// unacked packets, and we should have received the packets in the exact
// same ordering that we added.
if !reflect.DeepEqual(recvdPackets[halfPackets:], recvdPackets2) {
t.Fatalf("recvd packets mismatched: expected %v, got %v",
spew.Sdump(sentPackets), spew.Sdump(recvdPackets))
}
}