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