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Source file src/net/mac_test.go

Documentation: net

  // Copyright 2011 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  package net
  
  import (
  	"reflect"
  	"strings"
  	"testing"
  )
  
  var parseMACTests = []struct {
  	in  string
  	out HardwareAddr
  	err string
  }{
  	{"01:23:45:67:89:AB", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab}, ""},
  	{"01-23-45-67-89-AB", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab}, ""},
  	{"0123.4567.89AB", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab}, ""},
  	{"ab:cd:ef:AB:CD:EF", HardwareAddr{0xab, 0xcd, 0xef, 0xab, 0xcd, 0xef}, ""},
  	{"01.02.03.04.05.06", nil, "invalid MAC address"},
  	{"01:02:03:04:05:06:", nil, "invalid MAC address"},
  	{"x1:02:03:04:05:06", nil, "invalid MAC address"},
  	{"01002:03:04:05:06", nil, "invalid MAC address"},
  	{"01:02003:04:05:06", nil, "invalid MAC address"},
  	{"01:02:03004:05:06", nil, "invalid MAC address"},
  	{"01:02:03:04005:06", nil, "invalid MAC address"},
  	{"01:02:03:04:05006", nil, "invalid MAC address"},
  	{"01-02:03:04:05:06", nil, "invalid MAC address"},
  	{"01:02-03-04-05-06", nil, "invalid MAC address"},
  	{"0123:4567:89AF", nil, "invalid MAC address"},
  	{"0123-4567-89AF", nil, "invalid MAC address"},
  	{"01:23:45:67:89:AB:CD:EF", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}, ""},
  	{"01-23-45-67-89-AB-CD-EF", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}, ""},
  	{"0123.4567.89AB.CDEF", HardwareAddr{1, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}, ""},
  	{
  		"01:23:45:67:89:ab:cd:ef:00:00:01:23:45:67:89:ab:cd:ef:00:00",
  		HardwareAddr{
  			0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  			0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  		},
  		"",
  	},
  	{
  		"01-23-45-67-89-ab-cd-ef-00-00-01-23-45-67-89-ab-cd-ef-00-00",
  		HardwareAddr{
  			0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  			0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  		},
  		"",
  	},
  	{
  		"0123.4567.89ab.cdef.0000.0123.4567.89ab.cdef.0000",
  		HardwareAddr{
  			0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  			0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x00, 0x00,
  		},
  		"",
  	},
  }
  
  func TestParseMAC(t *testing.T) {
  	match := func(err error, s string) bool {
  		if s == "" {
  			return err == nil
  		}
  		return err != nil && strings.Contains(err.Error(), s)
  	}
  
  	for i, tt := range parseMACTests {
  		out, err := ParseMAC(tt.in)
  		if !reflect.DeepEqual(out, tt.out) || !match(err, tt.err) {
  			t.Errorf("ParseMAC(%q) = %v, %v, want %v, %v", tt.in, out, err, tt.out, tt.err)
  		}
  		if tt.err == "" {
  			// Verify that serialization works too, and that it round-trips.
  			s := out.String()
  			out2, err := ParseMAC(s)
  			if err != nil {
  				t.Errorf("%d. ParseMAC(%q) = %v", i, s, err)
  				continue
  			}
  			if !reflect.DeepEqual(out2, out) {
  				t.Errorf("%d. ParseMAC(%q) = %v, want %v", i, s, out2, out)
  			}
  		}
  	}
  }
  

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