forked from smallnest/epoller
/
epoll_test.go
97 lines (85 loc) · 1.63 KB
/
epoll_test.go
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package epoller
import (
"io"
"net"
"testing"
"time"
)
func TestPoller(t *testing.T) {
num := 10
msgPerConn := 10
poller, err := NewPoller()
if err != nil {
t.Fatal(err)
}
// start server
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
defer ln.Close()
go func() {
for {
conn, err := ln.Accept()
if err != nil {
return
}
poller.Add(conn)
}
}()
// create num connections and send msgPerConn messages per connection
for i := 0; i < num; i++ {
go func() {
conn, err := net.Dial("tcp", ln.Addr().String())
if err != nil {
t.Error(err)
return
}
time.Sleep(200 * time.Millisecond)
for i := 0; i < msgPerConn; i++ {
conn.Write([]byte("hello world"))
}
conn.Close()
}()
}
time.Sleep(100 * time.Millisecond)
// read those num * msgPerConn messages, and each message (hello world) contains 11 bytes.
ch := make(chan struct{})
var total int
var count int
var expected = num * msgPerConn * len("hello world")
go func() {
for {
conns, err := poller.Wait(128)
if err != nil {
t.Fatal(err)
}
count++
var buf = make([]byte, 11)
for _, conn := range conns {
n, err := conn.Read(buf)
if err != nil {
if err == io.EOF {
conn.Close()
poller.Remove(conn)
} else {
t.Error(err)
}
}
total += n
}
if total == expected {
break
}
}
t.Logf("read all %d bytes, count: %d", total, count)
close(ch)
}()
select {
case <-ch:
case <-time.After(2 * time.Second):
}
if total != expected {
t.Fatalf("epoller does not work. expect %d bytes but got %d bytes", expected, total)
}
}