libgo/go/net/net_test.go

   1 // Copyright 2009 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package net
   6
   7 import (
   8         "flag"
   9         "regexp"
  10         "testing"
  11 )
  12
  13 var runErrorTest = flag.Bool("run_error_test", false, "let TestDialError check for dns errors")
  14
  15 type DialErrorTest struct {
  16         Net     string
  17         Laddr   string
  18         Raddr   string
  19         Pattern string
  20 }
  21
  22 var dialErrorTests = []DialErrorTest{
  23         {
  24                 "datakit", "", "mh/astro/r70",
  25                 "dial datakit mh/astro/r70: unknown network datakit",
  26         },
  27         {
  28                 "tcp", "", "127.0.0.1:☺",
  29                 "dial tcp 127.0.0.1:☺: unknown port tcp/☺",
  30         },
  31         {
  32                 "tcp", "", "no-such-name.google.com.:80",
  33                 "dial tcp no-such-name.google.com.:80: lookup no-such-name.google.com.( on .*)?: no (.*)",
  34         },
  35         {
  36                 "tcp", "", "no-such-name.no-such-top-level-domain.:80",
  37                 "dial tcp no-such-name.no-such-top-level-domain.:80: lookup no-such-name.no-such-top-level-domain.( on .*)?: no (.*)",
  38         },
  39         {
  40                 "tcp", "", "no-such-name:80",
  41                 `dial tcp no-such-name:80: lookup no-such-name\.(.*\.)?( on .*)?: no (.*)`,
  42         },
  43         {
  44                 "tcp", "", "mh/astro/r70:http",
  45                 "dial tcp mh/astro/r70:http: lookup mh/astro/r70: invalid domain name",
  46         },
  47         {
  48                 "unix", "", "/etc/file-not-found",
  49                 "dial unix /etc/file-not-found: [nN]o such file or directory",
  50         },
  51         {
  52                 "unix", "", "/etc/",
  53                 "dial unix /etc/: ([pP]ermission denied|[sS]ocket operation on non-socket|[cC]onnection refused)",
  54         },
  55 }
  56
  57 func TestDialError(t *testing.T) {
  58         if !*runErrorTest {
  59                 t.Logf("test disabled; use --run_error_test to enable")
  60                 return
  61         }
  62         for i, tt := range dialErrorTests {
  63                 c, e := Dial(tt.Net, tt.Laddr, tt.Raddr)
  64                 if c != nil {
  65                         c.Close()
  66                 }
  67                 if e == nil {
  68                         t.Errorf("#%d: nil error, want match for %#q", i, tt.Pattern)
  69                         continue
  70                 }
  71                 s := e.String()
  72                 match, _ := regexp.MatchString(tt.Pattern, s)
  73                 if !match {
  74                         t.Errorf("#%d: %q, want match for %#q", i, s, tt.Pattern)
  75                 }
  76         }
  77 }