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Copy pathbufconn_test.go
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Copy pathbufconn_test.go
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117 lines (102 loc) · 2.81 KB
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/*
* Minio Cloud Storage, (C) 2017 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package http
import (
"bufio"
"io"
"net"
"sync"
"testing"
"time"
)
// Test bufconn handles read timeout properly by reading two messages beyond deadline.
func TestBuffConnReadTimeout(t *testing.T) {
l, err := net.Listen("tcp", "localhost:0")
if err != nil {
t.Fatalf("unable to create listener. %v", err)
}
defer l.Close()
serverAddr := l.Addr().String()
tcpListener, ok := l.(*net.TCPListener)
if !ok {
t.Fatalf("failed to assert to net.TCPListener")
}
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
tcpConn, terr := tcpListener.AcceptTCP()
if terr != nil {
t.Errorf("failed to accept new connection. %v", terr)
return
}
bufconn := newBufConn(tcpConn, 1*time.Second, 1*time.Second, 4096, nil, nil)
defer bufconn.Close()
// Read a line
var b = make([]byte, 12)
_, terr = bufconn.Read(b)
if terr != nil {
t.Errorf("failed to read from client. %v", terr)
return
}
received := string(b)
if received != "message one\n" {
t.Errorf(`server: expected: "message one\n", got: %v`, received)
return
}
// Wait for more than read timeout to simulate processing.
time.Sleep(3 * time.Second)
_, terr = bufconn.Read(b)
if terr != nil {
t.Errorf("failed to read from client. %v", terr)
return
}
received = string(b)
if received != "message two\n" {
t.Errorf(`server: expected: "message two\n", got: %v`, received)
return
}
// Send a response.
_, terr = io.WriteString(bufconn, "messages received\n")
if terr != nil {
t.Errorf("failed to write to client. %v", terr)
return
}
// Removes all deadlines if any.
bufconn.RemoveTimeout()
}()
c, err := net.Dial("tcp", serverAddr)
if err != nil {
t.Fatalf("unable to connect to server. %v", err)
}
defer c.Close()
_, err = io.WriteString(c, "message one\n")
if err != nil {
t.Fatalf("failed to write to server. %v", err)
}
_, err = io.WriteString(c, "message two\n")
if err != nil {
t.Fatalf("failed to write to server. %v", err)
}
received, err := bufio.NewReader(c).ReadString('\n')
if err != nil {
t.Fatalf("failed to read from server. %v", err)
}
if received != "messages received\n" {
t.Fatalf(`client: expected: "messages received\n", got: %v`, received)
}
wg.Wait()
}