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package fasthttputil
import (
"bytes"
"context"
"fmt"
"io"
"io/ioutil"
"net"
"net/http"
"sync"
"testing"
"time"
)
func TestInmemoryListener(t *testing.T) {
t.Parallel()
ln := NewInmemoryListener()
ch := make(chan struct{})
for i := 0; i < 10; i++ {
go func(n int) {
conn, err := ln.Dial()
if err != nil {
t.Errorf("unexpected error: %s", err)
}
defer conn.Close()
req := fmt.Sprintf("request_%d", n)
nn, err := conn.Write([]byte(req))
if err != nil {
t.Errorf("unexpected error: %s", err)
}
if nn != len(req) {
t.Errorf("unexpected number of bytes written: %d. Expecting %d", nn, len(req))
}
buf := make([]byte, 30)
nn, err = conn.Read(buf)
if err != nil {
t.Errorf("unexpected error: %s", err)
}
buf = buf[:nn]
resp := fmt.Sprintf("response_%d", n)
if nn != len(resp) {
t.Errorf("unexpected number of bytes read: %d. Expecting %d", nn, len(resp))
}
if string(buf) != resp {
t.Errorf("unexpected response %q. Expecting %q", buf, resp)
}
ch <- struct{}{}
}(i)
}
serverCh := make(chan struct{})
go func() {
for {
conn, err := ln.Accept()
if err != nil {
close(serverCh)
return
}
defer conn.Close()
buf := make([]byte, 30)
n, err := conn.Read(buf)
if err != nil {
t.Errorf("unexpected error: %s", err)
}
buf = buf[:n]
if !bytes.HasPrefix(buf, []byte("request_")) {
t.Errorf("unexpected request prefix %q. Expecting %q", buf, "request_")
}
resp := fmt.Sprintf("response_%s", buf[len("request_"):])
n, err = conn.Write([]byte(resp))
if err != nil {
t.Errorf("unexpected error: %s", err)
}
if n != len(resp) {
t.Errorf("unexpected number of bytes written: %d. Expecting %d", n, len(resp))
}
}
}()
for i := 0; i < 10; i++ {
select {
case <-ch:
case <-time.After(time.Second):
t.Fatalf("timeout")
}
}
if err := ln.Close(); err != nil {
t.Fatalf("unexpected error: %s", err)
}
select {
case <-serverCh:
case <-time.After(time.Second):
t.Fatalf("timeout")
}
}
// echoServerHandler implements http.Handler.
type echoServerHandler struct {
t *testing.T
}
func (s *echoServerHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(200)
time.Sleep(time.Millisecond * 100)
if _, err := io.Copy(w, r.Body); err != nil {
s.t.Fatalf("unexpected error: %s", err)
}
}
func testInmemoryListenerHTTP(t *testing.T, f func(t *testing.T, client *http.Client)) {
ln := NewInmemoryListener()
defer ln.Close()
client := &http.Client{
Transport: &http.Transport{
DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
return ln.Dial()
},
},
Timeout: time.Second,
}
server := &http.Server{
Handler: &echoServerHandler{t},
}
go func() {
if err := server.Serve(ln); err != nil && err != http.ErrServerClosed {
t.Errorf("unexpected error: %s", err)
}
}()
f(t, client)
ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*100)
defer cancel()
server.Shutdown(ctx) //nolint:errcheck
}
func testInmemoryListenerHTTPSingle(t *testing.T, client *http.Client, content string) {
res, err := client.Post("http://...", "text/plain", bytes.NewBufferString(content))
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
b, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
s := string(b)
if string(b) != content {
t.Fatalf("unexpected response %s, expecting %s", s, content)
}
}
func TestInmemoryListenerHTTPSingle(t *testing.T) {
t.Parallel()
testInmemoryListenerHTTP(t, func(t *testing.T, client *http.Client) {
testInmemoryListenerHTTPSingle(t, client, "request")
})
}
func TestInmemoryListenerHTTPSerial(t *testing.T) {
t.Parallel()
testInmemoryListenerHTTP(t, func(t *testing.T, client *http.Client) {
for i := 0; i < 10; i++ {
testInmemoryListenerHTTPSingle(t, client, fmt.Sprintf("request_%d", i))
}
})
}
func TestInmemoryListenerHTTPConcurrent(t *testing.T) {
t.Parallel()
testInmemoryListenerHTTP(t, func(t *testing.T, client *http.Client) {
var wg sync.WaitGroup
for i := 0; i < 10; i++ {
wg.Add(1)
go func(i int) {
defer wg.Done()
testInmemoryListenerHTTPSingle(t, client, fmt.Sprintf("request_%d", i))
}(i)
}
wg.Wait()
})
}
|
