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|
package fasthttputil
import (
"fmt"
"io"
"io/ioutil"
"net"
"testing"
"time"
)
func TestPipeConnsCloseWhileReadWriteConcurrent(t *testing.T) {
concurrency := 4
ch := make(chan struct{}, concurrency)
for i := 0; i < concurrency; i++ {
go func() {
testPipeConnsCloseWhileReadWriteSerial(t)
ch <- struct{}{}
}()
}
for i := 0; i < concurrency; i++ {
select {
case <-ch:
case <-time.After(3 * time.Second):
t.Fatalf("timeout")
}
}
}
func TestPipeConnsCloseWhileReadWriteSerial(t *testing.T) {
testPipeConnsCloseWhileReadWriteSerial(t)
}
func testPipeConnsCloseWhileReadWriteSerial(t *testing.T) {
for i := 0; i < 10; i++ {
testPipeConnsCloseWhileReadWrite(t)
}
}
func testPipeConnsCloseWhileReadWrite(t *testing.T) {
pc := NewPipeConns()
c1 := pc.Conn1()
c2 := pc.Conn2()
readCh := make(chan error)
go func() {
var err error
if _, err = io.Copy(ioutil.Discard, c1); err != nil {
if err != errConnectionClosed {
err = fmt.Errorf("unexpected error: %s", err)
} else {
err = nil
}
}
readCh <- err
}()
writeCh := make(chan error)
go func() {
var err error
for {
if _, err = c2.Write([]byte("foobar")); err != nil {
if err != errConnectionClosed {
err = fmt.Errorf("unexpected error: %s", err)
} else {
err = nil
}
break
}
}
writeCh <- err
}()
time.Sleep(10 * time.Millisecond)
if err := c1.Close(); err != nil {
t.Fatalf("unexpected error: %s", err)
}
if err := c2.Close(); err != nil {
t.Fatalf("unexpected error: %s", err)
}
select {
case err := <-readCh:
if err != nil {
t.Fatalf("unexpected error in reader: %s", err)
}
case <-time.After(time.Second):
t.Fatalf("timeout")
}
select {
case err := <-writeCh:
if err != nil {
t.Fatalf("unexpected error in writer: %s", err)
}
case <-time.After(time.Second):
t.Fatalf("timeout")
}
}
func TestPipeConnsReadWriteSerial(t *testing.T) {
testPipeConnsReadWriteSerial(t)
}
func TestPipeConnsReadWriteConcurrent(t *testing.T) {
testConcurrency(t, 10, testPipeConnsReadWriteSerial)
}
func testPipeConnsReadWriteSerial(t *testing.T) {
pc := NewPipeConns()
testPipeConnsReadWrite(t, pc.Conn1(), pc.Conn2())
pc = NewPipeConns()
testPipeConnsReadWrite(t, pc.Conn2(), pc.Conn1())
}
func testPipeConnsReadWrite(t *testing.T, c1, c2 net.Conn) {
defer c1.Close()
defer c2.Close()
var buf [32]byte
for i := 0; i < 10; i++ {
// The first write
s1 := fmt.Sprintf("foo_%d", i)
n, err := c1.Write([]byte(s1))
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if n != len(s1) {
t.Fatalf("unexpected number of bytes written: %d. Expecting %d", n, len(s1))
}
// The second write
s2 := fmt.Sprintf("bar_%d", i)
n, err = c1.Write([]byte(s2))
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if n != len(s2) {
t.Fatalf("unexpected number of bytes written: %d. Expecting %d", n, len(s2))
}
// Read data written above in two writes
s := s1 + s2
n, err = c2.Read(buf[:])
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if n != len(s) {
t.Fatalf("unexpected number of bytes read: %d. Expecting %d", n, len(s))
}
if string(buf[:n]) != s {
t.Fatalf("unexpected string read: %q. Expecting %q", buf[:n], s)
}
}
}
func TestPipeConnsCloseSerial(t *testing.T) {
testPipeConnsCloseSerial(t)
}
func TestPipeConnsCloseConcurrent(t *testing.T) {
testConcurrency(t, 10, testPipeConnsCloseSerial)
}
func testPipeConnsCloseSerial(t *testing.T) {
pc := NewPipeConns()
testPipeConnsClose(t, pc.Conn1(), pc.Conn2())
pc = NewPipeConns()
testPipeConnsClose(t, pc.Conn2(), pc.Conn1())
}
func testPipeConnsClose(t *testing.T, c1, c2 net.Conn) {
if err := c1.Close(); err != nil {
t.Fatalf("unexpected error: %s", err)
}
var buf [10]byte
// attempt writing to closed conn
for i := 0; i < 10; i++ {
n, err := c1.Write(buf[:])
if err == nil {
t.Fatalf("expecting error")
}
if n != 0 {
t.Fatalf("unexpected number of bytes written: %d. Expecting 0", n)
}
}
// attempt reading from closed conn
for i := 0; i < 10; i++ {
n, err := c2.Read(buf[:])
if err == nil {
t.Fatalf("expecting error")
}
if err != io.EOF {
t.Fatalf("unexpected error: %s. Expecting %s", err, io.EOF)
}
if n != 0 {
t.Fatalf("unexpected number of bytes read: %d. Expecting 0", n)
}
}
if err := c2.Close(); err != nil {
t.Fatalf("unexpected error: %s", err)
}
// attempt closing already closed conns
for i := 0; i < 10; i++ {
if err := c1.Close(); err != nil {
t.Fatalf("unexpected error: %s", err)
}
if err := c2.Close(); err != nil {
t.Fatalf("unexpected error: %s", err)
}
}
}
func testConcurrency(t *testing.T, concurrency int, f func(*testing.T)) {
ch := make(chan struct{}, concurrency)
for i := 0; i < concurrency; i++ {
go func() {
f(t)
ch <- struct{}{}
}()
}
for i := 0; i < concurrency; i++ {
select {
case <-ch:
case <-time.After(time.Second):
t.Fatalf("timeout")
}
}
}
|
