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- // Copyright 2015 The etcd Authors
- //
- // 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 transport
- import (
- "net"
- "testing"
- "time"
- )
- // TestNewTimeoutListener tests that NewTimeoutListener returns a
- // rwTimeoutListener struct with timeouts set.
- func TestNewTimeoutListener(t *testing.T) {
- l, err := NewTimeoutListener("127.0.0.1:0", "http", nil, time.Hour, time.Hour)
- if err != nil {
- t.Fatalf("unexpected NewTimeoutListener error: %v", err)
- }
- defer l.Close()
- tln := l.(*rwTimeoutListener)
- if tln.rdtimeoutd != time.Hour {
- t.Errorf("read timeout = %s, want %s", tln.rdtimeoutd, time.Hour)
- }
- if tln.wtimeoutd != time.Hour {
- t.Errorf("write timeout = %s, want %s", tln.wtimeoutd, time.Hour)
- }
- }
- func TestWriteReadTimeoutListener(t *testing.T) {
- ln, err := net.Listen("tcp", "127.0.0.1:0")
- if err != nil {
- t.Fatalf("unexpected listen error: %v", err)
- }
- wln := rwTimeoutListener{
- Listener: ln,
- wtimeoutd: 10 * time.Millisecond,
- rdtimeoutd: 10 * time.Millisecond,
- }
- stop := make(chan struct{})
- blocker := func() {
- conn, derr := net.Dial("tcp", ln.Addr().String())
- if derr != nil {
- t.Errorf("unexpected dail error: %v", derr)
- }
- defer conn.Close()
- // block the receiver until the writer timeout
- <-stop
- }
- go blocker()
- conn, err := wln.Accept()
- if err != nil {
- t.Fatalf("unexpected accept error: %v", err)
- }
- defer conn.Close()
- // fill the socket buffer
- data := make([]byte, 5*1024*1024)
- done := make(chan struct{})
- go func() {
- _, err = conn.Write(data)
- done <- struct{}{}
- }()
- select {
- case <-done:
- // It waits 1s more to avoid delay in low-end system.
- case <-time.After(wln.wtimeoutd*10 + time.Second):
- t.Fatal("wait timeout")
- }
- if operr, ok := err.(*net.OpError); !ok || operr.Op != "write" || !operr.Timeout() {
- t.Errorf("err = %v, want write i/o timeout error", err)
- }
- stop <- struct{}{}
- go blocker()
- conn, err = wln.Accept()
- if err != nil {
- t.Fatalf("unexpected accept error: %v", err)
- }
- buf := make([]byte, 10)
- go func() {
- _, err = conn.Read(buf)
- done <- struct{}{}
- }()
- select {
- case <-done:
- case <-time.After(wln.rdtimeoutd * 10):
- t.Fatal("wait timeout")
- }
- if operr, ok := err.(*net.OpError); !ok || operr.Op != "read" || !operr.Timeout() {
- t.Errorf("err = %v, want write i/o timeout error", err)
- }
- stop <- struct{}{}
- }
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