go-ethereum/p2p/simulations/adapters/inproc_test.go

203 lines
4.4 KiB
Go
Raw Normal View History

2019-07-22 12:17:27 +03:00
// Copyright 2018 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"
"sync"
"testing"
"github.com/ethereum/go-ethereum/p2p/simulations/pipes"
)
func TestTCPPipe(t *testing.T) {
c1, c2, err := pipes.TCPPipe()
if err != nil {
t.Fatal(err)
}
msgs := 50
size := 1024
for i := 0; i < msgs; i++ {
msg := make([]byte, size)
binary.PutUvarint(msg, uint64(i))
if _, err := c1.Write(msg); err != nil {
t.Fatal(err)
}
}
for i := 0; i < msgs; i++ {
msg := make([]byte, size)
binary.PutUvarint(msg, uint64(i))
out := make([]byte, size)
if _, err := c2.Read(out); err != nil {
t.Fatal(err)
}
if !bytes.Equal(msg, out) {
t.Fatalf("expected %#v, got %#v", msg, out)
}
}
}
func TestTCPPipeBidirections(t *testing.T) {
c1, c2, err := pipes.TCPPipe()
if err != nil {
t.Fatal(err)
}
msgs := 50
size := 7
for i := 0; i < msgs; i++ {
msg := []byte(fmt.Sprintf("ping %02d", i))
if _, err := c1.Write(msg); err != nil {
t.Fatal(err)
}
}
for i := 0; i < msgs; i++ {
expected := []byte(fmt.Sprintf("ping %02d", i))
out := make([]byte, size)
if _, err := c2.Read(out); 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))
if _, err := c2.Write(msg); err != nil {
t.Fatal(err)
}
}
}
for i := 0; i < msgs; i++ {
expected := []byte(fmt.Sprintf("pong %02d", i))
out := make([]byte, size)
if _, err := c1.Read(out); err != nil {
t.Fatal(err)
}
if !bytes.Equal(expected, out) {
t.Fatalf("expected %#v, got %#v", out, expected)
}
}
}
func TestNetPipe(t *testing.T) {
c1, c2, err := pipes.NetPipe()
if err != nil {
t.Fatal(err)
}
msgs := 50
size := 1024
var wg sync.WaitGroup
defer wg.Wait()
// netPipe is blocking, so writes are emitted asynchronously
wg.Add(1)
go func() {
defer wg.Done()
for i := 0; i < msgs; i++ {
msg := make([]byte, size)
binary.PutUvarint(msg, uint64(i))
if _, err := c1.Write(msg); err != nil {
t.Error(err)
}
}
}()
for i := 0; i < msgs; i++ {
msg := make([]byte, size)
binary.PutUvarint(msg, uint64(i))
out := make([]byte, size)
if _, err := c2.Read(out); err != nil {
t.Error(err)
}
if !bytes.Equal(msg, out) {
t.Errorf("expected %#v, got %#v", msg, out)
}
}
}
func TestNetPipeBidirections(t *testing.T) {
c1, c2, err := pipes.NetPipe()
if err != nil {
t.Fatal(err)
}
msgs := 1000
size := 8
pingTemplate := "ping %03d"
pongTemplate := "pong %03d"
var wg sync.WaitGroup
defer wg.Wait()
// netPipe is blocking, so writes are emitted asynchronously
wg.Add(1)
go func() {
defer wg.Done()
for i := 0; i < msgs; i++ {
msg := []byte(fmt.Sprintf(pingTemplate, i))
if _, err := c1.Write(msg); err != nil {
t.Error(err)
}
}
}()
// netPipe is blocking, so reads for pong are emitted asynchronously
wg.Add(1)
go func() {
defer wg.Done()
for i := 0; i < msgs; i++ {
expected := []byte(fmt.Sprintf(pongTemplate, i))
out := make([]byte, size)
if _, err := c1.Read(out); err != nil {
t.Error(err)
}
if !bytes.Equal(expected, out) {
t.Errorf("expected %#v, got %#v", expected, out)
}
}
}()
// 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.Errorf("expected %#v, got %#v", expected, out)
} else {
msg := []byte(fmt.Sprintf(pongTemplate, i))
if _, err := c2.Write(msg); err != nil {
t.Fatal(err)
}
}
}
}