| // 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.Fatalf("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{}{} |
| } |