mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
synced 2024-12-23 20:07:16 +00:00
1d80155d5e
The new package contains three things for now: - IP network list parsing and matching - The WSAEMSGSIZE workaround, which is duplicated in p2p/discover and p2p/discv5.
74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
// Copyright 2016 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package netutil
|
|
|
|
import (
|
|
"net"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
// This test checks that isPacketTooBig correctly identifies
|
|
// errors that result from receiving a UDP packet larger
|
|
// than the supplied receive buffer.
|
|
func TestIsPacketTooBig(t *testing.T) {
|
|
listener, err := net.ListenPacket("udp", "127.0.0.1:0")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer listener.Close()
|
|
sender, err := net.Dial("udp", listener.LocalAddr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer sender.Close()
|
|
|
|
sendN := 1800
|
|
recvN := 300
|
|
for i := 0; i < 20; i++ {
|
|
go func() {
|
|
buf := make([]byte, sendN)
|
|
for i := range buf {
|
|
buf[i] = byte(i)
|
|
}
|
|
sender.Write(buf)
|
|
}()
|
|
|
|
buf := make([]byte, recvN)
|
|
listener.SetDeadline(time.Now().Add(1 * time.Second))
|
|
n, _, err := listener.ReadFrom(buf)
|
|
if err != nil {
|
|
if nerr, ok := err.(net.Error); ok && nerr.Timeout() {
|
|
continue
|
|
}
|
|
if !isPacketTooBig(err) {
|
|
t.Fatalf("unexpected read error: %v", err)
|
|
}
|
|
continue
|
|
}
|
|
if n != recvN {
|
|
t.Fatalf("short read: %d, want %d", n, recvN)
|
|
}
|
|
for i := range buf {
|
|
if buf[i] != byte(i) {
|
|
t.Fatalf("error in pattern")
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|