122 lines
2.7 KiB
Go
122 lines
2.7 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package net
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import (
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"fmt"
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"runtime"
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"testing"
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"time"
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)
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func testTimeout(t *testing.T, net, addr string, readFrom bool) {
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c, err := Dial(net, addr)
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if err != nil {
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t.Errorf("Dial(%q, %q) failed: %v", net, addr, err)
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return
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}
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defer c.Close()
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what := "Read"
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if readFrom {
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what = "ReadFrom"
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}
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errc := make(chan error, 1)
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go func() {
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t0 := time.Now()
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c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
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var b [100]byte
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var n int
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var err error
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if readFrom {
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n, _, err = c.(PacketConn).ReadFrom(b[0:])
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} else {
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n, err = c.Read(b[0:])
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}
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t1 := time.Now()
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if n != 0 || err == nil || !err.(Error).Timeout() {
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errc <- fmt.Errorf("%s(%q, %q) did not return 0, timeout: %v, %v", what, net, addr, n, err)
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return
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}
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if dt := t1.Sub(t0); dt < 50*time.Millisecond || !testing.Short() && dt > 250*time.Millisecond {
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errc <- fmt.Errorf("%s(%q, %q) took %s, expected 0.1s", what, net, addr, dt)
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return
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}
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errc <- nil
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}()
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select {
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case err := <-errc:
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if err != nil {
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t.Error(err)
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}
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case <-time.After(1 * time.Second):
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t.Errorf("%s(%q, %q) took over 1 second, expected 0.1s", what, net, addr)
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}
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}
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func TestTimeoutUDP(t *testing.T) {
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switch runtime.GOOS {
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case "plan9":
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t.Logf("skipping test on %q", runtime.GOOS)
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return
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}
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// set up a listener that won't talk back
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listening := make(chan string)
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done := make(chan int)
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go runDatagramPacketConnServer(t, "udp", "127.0.0.1:0", listening, done)
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addr := <-listening
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testTimeout(t, "udp", addr, false)
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testTimeout(t, "udp", addr, true)
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<-done
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}
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func TestTimeoutTCP(t *testing.T) {
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switch runtime.GOOS {
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case "plan9":
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t.Logf("skipping test on %q", runtime.GOOS)
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return
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}
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// set up a listener that won't talk back
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listening := make(chan string)
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done := make(chan int)
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go runStreamConnServer(t, "tcp", "127.0.0.1:0", listening, done)
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addr := <-listening
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testTimeout(t, "tcp", addr, false)
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<-done
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}
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func TestDeadlineReset(t *testing.T) {
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switch runtime.GOOS {
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case "plan9":
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t.Logf("skipping test on %q", runtime.GOOS)
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return
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}
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ln, err := Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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defer ln.Close()
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tl := ln.(*TCPListener)
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tl.SetDeadline(time.Now().Add(1 * time.Minute))
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tl.SetDeadline(time.Time{}) // reset it
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errc := make(chan error, 1)
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go func() {
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_, err := ln.Accept()
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errc <- err
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}()
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select {
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case <-time.After(50 * time.Millisecond):
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// Pass.
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case err := <-errc:
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// Accept should never return; we never
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// connected to it.
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t.Errorf("unexpected return from Accept; err=%v", err)
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}
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}
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