plugeth/p2p/simulations/adapters/inproc_test.go

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// Copyright 2017 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 adapters
import (
"bytes"
"encoding/binary"
"fmt"
"testing"
"time"
"github.com/ethereum/go-ethereum/p2p/simulations/pipes"
)
func TestTCPPipe(t *testing.T) {
c1, c2, err := pipes.TCPPipe()
if err != nil {
t.Fatal(err)
}
done := make(chan struct{})
go func() {
msgs := 50
size := 1024
for i := 0; i < msgs; i++ {
msg := make([]byte, size)
_ = binary.PutUvarint(msg, uint64(i))
_, err := c1.Write(msg)
if err != nil {
t.Fatal(err)
}
}
for i := 0; i < msgs; i++ {
msg := make([]byte, size)
_ = binary.PutUvarint(msg, uint64(i))
out := make([]byte, size)
_, err := c2.Read(out)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(msg, out) {
t.Fatalf("expected %#v, got %#v", msg, out)
}
}
done <- struct{}{}
}()
select {
case <-done:
case <-time.After(5 * time.Second):
t.Fatal("test timeout")
}
}
func TestTCPPipeBidirections(t *testing.T) {
c1, c2, err := pipes.TCPPipe()
if err != nil {
t.Fatal(err)
}
done := make(chan struct{})
go func() {
msgs := 50
size := 7
for i := 0; i < msgs; i++ {
msg := []byte(fmt.Sprintf("ping %02d", i))
_, err := c1.Write(msg)
if err != nil {
t.Fatal(err)
}
}
for i := 0; i < msgs; i++ {
expected := []byte(fmt.Sprintf("ping %02d", i))
out := make([]byte, size)
_, err := c2.Read(out)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(expected, out) {
t.Fatalf("expected %#v, got %#v", out, expected)
} else {
msg := []byte(fmt.Sprintf("pong %02d", i))
_, err := c2.Write(msg)
if err != nil {
t.Fatal(err)
}
}
}
for i := 0; i < msgs; i++ {
expected := []byte(fmt.Sprintf("pong %02d", i))
out := make([]byte, size)
_, err := c1.Read(out)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(expected, out) {
t.Fatalf("expected %#v, got %#v", out, expected)
}
}
done <- struct{}{}
}()
select {
case <-done:
case <-time.After(5 * time.Second):
t.Fatal("test timeout")
}
}
func TestNetPipe(t *testing.T) {
c1, c2, err := pipes.NetPipe()
if err != nil {
t.Fatal(err)
}
done := make(chan struct{})
go func() {
msgs := 50
size := 1024
// netPipe is blocking, so writes are emitted asynchronously
go func() {
for i := 0; i < msgs; i++ {
msg := make([]byte, size)
_ = binary.PutUvarint(msg, uint64(i))
_, err := c1.Write(msg)
if err != nil {
t.Fatal(err)
}
}
}()
for i := 0; i < msgs; i++ {
msg := make([]byte, size)
_ = binary.PutUvarint(msg, uint64(i))
out := make([]byte, size)
_, err := c2.Read(out)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(msg, out) {
t.Fatalf("expected %#v, got %#v", msg, out)
}
}
done <- struct{}{}
}()
select {
case <-done:
case <-time.After(5 * time.Second):
t.Fatal("test timeout")
}
}
func TestNetPipeBidirections(t *testing.T) {
c1, c2, err := pipes.NetPipe()
if err != nil {
t.Fatal(err)
}
done := make(chan struct{})
go func() {
msgs := 1000
size := 8
pingTemplate := "ping %03d"
pongTemplate := "pong %03d"
// netPipe is blocking, so writes are emitted asynchronously
go func() {
for i := 0; i < msgs; i++ {
msg := []byte(fmt.Sprintf(pingTemplate, i))
_, err := c1.Write(msg)
if err != nil {
t.Fatal(err)
}
}
}()
// netPipe is blocking, so reads for pong are emitted asynchronously
go func() {
for i := 0; i < msgs; i++ {
expected := []byte(fmt.Sprintf(pongTemplate, i))
out := make([]byte, size)
_, err := c1.Read(out)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(expected, out) {
t.Fatalf("expected %#v, got %#v", expected, out)
}
}
done <- struct{}{}
}()
// expect to read pings, and respond with pongs to the alternate connection
for i := 0; i < msgs; i++ {
expected := []byte(fmt.Sprintf(pingTemplate, i))
out := make([]byte, size)
_, err := c2.Read(out)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(expected, out) {
t.Fatalf("expected %#v, got %#v", expected, out)
} else {
msg := []byte(fmt.Sprintf(pongTemplate, i))
_, err := c2.Write(msg)
if err != nil {
t.Fatal(err)
}
}
}
}()
select {
case <-done:
case <-time.After(5 * time.Second):
t.Fatal("test timeout")
}
}