torrent/connection_test.go

51 lines
1.3 KiB
Go

package torrent
import (
"testing"
"time"
"bitbucket.org/anacrolix/go.torrent/peer_protocol"
)
func TestCancelRequestOptimized(t *testing.T) {
c := &connection{
PeerMaxRequests: 1,
PeerPieces: []bool{false, true},
post: make(chan peer_protocol.Message),
writeCh: make(chan []byte),
}
if len(c.Requests) != 0 {
t.FailNow()
}
// Keepalive timeout of 0 works because I'm just that good.
go c.writeOptimizer(0 * time.Millisecond)
c.Request(newRequest(1, 2, 3))
if len(c.Requests) != 1 {
t.Fatal("request was not posted")
}
// Posting this message should removing the pending Request.
if !c.Cancel(newRequest(1, 2, 3)) {
t.Fatal("request was not found")
}
// Check that the write optimization has filtered out the Request message.
for _, b := range []string{
// The initial request triggers an Interested message.
"\x00\x00\x00\x01\x02",
// Let a keep-alive through to verify there were no pending messages.
"\x00\x00\x00\x00",
} {
bb := string(<-c.writeCh)
if b != bb {
t.Fatalf("received message %q is not expected: %q", bb, b)
}
}
close(c.post)
// Drain the write channel until it closes.
for b := range c.writeCh {
bs := string(b)
if bs != "\x00\x00\x00\x00" {
t.Fatal("got unexpected non-keepalive")
}
}
}