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118 lines
3.0 KiB
Go
118 lines
3.0 KiB
Go
// Copyright (c) 2015-2022 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package deadlineconn
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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 deadlineconn 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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deadlineconn := New(tcpConn)
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deadlineconn.WithReadDeadline(time.Second)
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deadlineconn.WithWriteDeadline(time.Second)
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defer deadlineconn.Close()
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// Read a line
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b := make([]byte, 12)
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_, terr = deadlineconn.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 = deadlineconn.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(deadlineconn, "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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}()
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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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