libgo/go/net/mac_test.go

   1 // Copyright 2011 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         "reflect"
   9         "strings"
  10         "testing"
  11 )
  12
  13 var parseMACTests = []struct {
  14         in  string
  15         out HardwareAddr
  16         err string
  17 }{
  18         {"01:23:45:67:89:AB", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab}, ""},
  19         {"01-23-45-67-89-AB", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab}, ""},
  20         {"0123.4567.89AB", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab}, ""},
  21         {"ab:cd:ef:AB:CD:EF", HardwareAddr{0xab, 0xcd, 0xef, 0xab, 0xcd, 0xef}, ""},
  22         {"01.02.03.04.05.06", nil, "invalid MAC address"},
  23         {"01:02:03:04:05:06:", nil, "invalid MAC address"},
  24         {"x1:02:03:04:05:06", nil, "invalid MAC address"},
  25         {"01002:03:04:05:06", nil, "invalid MAC address"},
  26         {"01:02003:04:05:06", nil, "invalid MAC address"},
  27         {"01:02:03004:05:06", nil, "invalid MAC address"},
  28         {"01:02:03:04005:06", nil, "invalid MAC address"},
  29         {"01:02:03:04:05006", nil, "invalid MAC address"},
  30         {"01-02:03:04:05:06", nil, "invalid MAC address"},
  31         {"01:02-03-04-05-06", nil, "invalid MAC address"},
  32         {"0123:4567:89AF", nil, "invalid MAC address"},
  33         {"0123-4567-89AF", nil, "invalid MAC address"},
  34         {"01:23:45:67:89:AB:CD:EF", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}, ""},
  35         {"01-23-45-67-89-AB-CD-EF", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}, ""},
  36         {"0123.4567.89AB.CDEF", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}, ""},
  37         {
  38                 "01:23:45:67:89:ab:cd:ef:00:00:01:23:45:67:89:ab:cd:ef:00:00",
  39                 HardwareAddr{
  40                         0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  41                         0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  42                 },
  43                 "",
  44         },
  45         {
  46                 "01-23-45-67-89-ab-cd-ef-00-00-01-23-45-67-89-ab-cd-ef-00-00",
  47                 HardwareAddr{
  48                         0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  49                         0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  50                 },
  51                 "",
  52         },
  53         {
  54                 "0123.4567.89ab.cdef.0000.0123.4567.89ab.cdef.0000",
  55                 HardwareAddr{
  56                         0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  57                         0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  58                 },
  59                 "",
  60         },
  61 }
  62
  63 func TestParseMAC(t *testing.T) {
  64         match := func(err error, s string) bool {
  65                 if s == "" {
  66                         return err == nil
  67                 }
  68                 return err != nil && strings.Contains(err.Error(), s)
  69         }
  70
  71         for i, tt := range parseMACTests {
  72                 out, err := ParseMAC(tt.in)
  73                 if !reflect.DeepEqual(out, tt.out) || !match(err, tt.err) {
  74                         t.Errorf("ParseMAC(%q) = %v, %v, want %v, %v", tt.in, out, err, tt.out, tt.err)
  75                 }
  76                 if tt.err == "" {
  77                         // Verify that serialization works too, and that it round-trips.
  78                         s := out.String()
  79                         out2, err := ParseMAC(s)
  80                         if err != nil {
  81                                 t.Errorf("%d. ParseMAC(%q) = %v", i, s, err)
  82                                 continue
  83                         }
  84                         if !reflect.DeepEqual(out2, out) {
  85                                 t.Errorf("%d. ParseMAC(%q) = %v, want %v", i, s, out2, out)
  86                         }
  87                 }
  88         }
  89 }