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Source file src/net/mac_test.go

Documentation: net

     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  }
    90  

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