github.com/rsc/go@v0.0.0-20150416155037-e040fd465409/src/encoding/asn1/marshal_test.go (about)

     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 asn1
     6  
     7  import (
     8  	"bytes"
     9  	"encoding/hex"
    10  	"math/big"
    11  	"testing"
    12  	"time"
    13  )
    14  
    15  type intStruct struct {
    16  	A int
    17  }
    18  
    19  type twoIntStruct struct {
    20  	A int
    21  	B int
    22  }
    23  
    24  type bigIntStruct struct {
    25  	A *big.Int
    26  }
    27  
    28  type nestedStruct struct {
    29  	A intStruct
    30  }
    31  
    32  type rawContentsStruct struct {
    33  	Raw RawContent
    34  	A   int
    35  }
    36  
    37  type implicitTagTest struct {
    38  	A int `asn1:"implicit,tag:5"`
    39  }
    40  
    41  type explicitTagTest struct {
    42  	A int `asn1:"explicit,tag:5"`
    43  }
    44  
    45  type ia5StringTest struct {
    46  	A string `asn1:"ia5"`
    47  }
    48  
    49  type printableStringTest struct {
    50  	A string `asn1:"printable"`
    51  }
    52  
    53  type optionalRawValueTest struct {
    54  	A RawValue `asn1:"optional"`
    55  }
    56  
    57  type omitEmptyTest struct {
    58  	A []string `asn1:"omitempty"`
    59  }
    60  
    61  type defaultTest struct {
    62  	A int `asn1:"optional,default:1"`
    63  }
    64  
    65  type testSET []int
    66  
    67  var PST = time.FixedZone("PST", -8*60*60)
    68  
    69  type marshalTest struct {
    70  	in  interface{}
    71  	out string // hex encoded
    72  }
    73  
    74  func farFuture() time.Time {
    75  	t, err := time.Parse(time.RFC3339, "2100-04-05T12:01:01Z")
    76  	if err != nil {
    77  		panic(err)
    78  	}
    79  	return t
    80  }
    81  
    82  var marshalTests = []marshalTest{
    83  	{10, "02010a"},
    84  	{127, "02017f"},
    85  	{128, "02020080"},
    86  	{-128, "020180"},
    87  	{-129, "0202ff7f"},
    88  	{intStruct{64}, "3003020140"},
    89  	{bigIntStruct{big.NewInt(0x123456)}, "30050203123456"},
    90  	{twoIntStruct{64, 65}, "3006020140020141"},
    91  	{nestedStruct{intStruct{127}}, "3005300302017f"},
    92  	{[]byte{1, 2, 3}, "0403010203"},
    93  	{implicitTagTest{64}, "3003850140"},
    94  	{explicitTagTest{64}, "3005a503020140"},
    95  	{time.Unix(0, 0).UTC(), "170d3730303130313030303030305a"},
    96  	{time.Unix(1258325776, 0).UTC(), "170d3039313131353232353631365a"},
    97  	{time.Unix(1258325776, 0).In(PST), "17113039313131353134353631362d30383030"},
    98  	{farFuture(), "180f32313030303430353132303130315a"},
    99  	{BitString{[]byte{0x80}, 1}, "03020780"},
   100  	{BitString{[]byte{0x81, 0xf0}, 12}, "03030481f0"},
   101  	{ObjectIdentifier([]int{1, 2, 3, 4}), "06032a0304"},
   102  	{ObjectIdentifier([]int{1, 2, 840, 133549, 1, 1, 5}), "06092a864888932d010105"},
   103  	{ObjectIdentifier([]int{2, 100, 3}), "0603813403"},
   104  	{"test", "130474657374"},
   105  	{
   106  		"" +
   107  			"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
   108  			"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
   109  			"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
   110  			"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", // This is 127 times 'x'
   111  		"137f" +
   112  			"7878787878787878787878787878787878787878787878787878787878787878" +
   113  			"7878787878787878787878787878787878787878787878787878787878787878" +
   114  			"7878787878787878787878787878787878787878787878787878787878787878" +
   115  			"78787878787878787878787878787878787878787878787878787878787878",
   116  	},
   117  	{
   118  		"" +
   119  			"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
   120  			"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
   121  			"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
   122  			"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", // This is 128 times 'x'
   123  		"138180" +
   124  			"7878787878787878787878787878787878787878787878787878787878787878" +
   125  			"7878787878787878787878787878787878787878787878787878787878787878" +
   126  			"7878787878787878787878787878787878787878787878787878787878787878" +
   127  			"7878787878787878787878787878787878787878787878787878787878787878",
   128  	},
   129  	{ia5StringTest{"test"}, "3006160474657374"},
   130  	{optionalRawValueTest{}, "3000"},
   131  	{printableStringTest{"test"}, "3006130474657374"},
   132  	{printableStringTest{"test*"}, "30071305746573742a"},
   133  	{rawContentsStruct{nil, 64}, "3003020140"},
   134  	{rawContentsStruct{[]byte{0x30, 3, 1, 2, 3}, 64}, "3003010203"},
   135  	{RawValue{Tag: 1, Class: 2, IsCompound: false, Bytes: []byte{1, 2, 3}}, "8103010203"},
   136  	{testSET([]int{10}), "310302010a"},
   137  	{omitEmptyTest{[]string{}}, "3000"},
   138  	{omitEmptyTest{[]string{"1"}}, "30053003130131"},
   139  	{"Σ", "0c02cea3"},
   140  	{defaultTest{0}, "3003020100"},
   141  	{defaultTest{1}, "3000"},
   142  	{defaultTest{2}, "3003020102"},
   143  }
   144  
   145  func TestMarshal(t *testing.T) {
   146  	for i, test := range marshalTests {
   147  		data, err := Marshal(test.in)
   148  		if err != nil {
   149  			t.Errorf("#%d failed: %s", i, err)
   150  		}
   151  		out, _ := hex.DecodeString(test.out)
   152  		if !bytes.Equal(out, data) {
   153  			t.Errorf("#%d got: %x want %x\n\t%q\n\t%q", i, data, out, data, out)
   154  
   155  		}
   156  	}
   157  }
   158  
   159  func TestInvalidUTF8(t *testing.T) {
   160  	_, err := Marshal(string([]byte{0xff, 0xff}))
   161  	if err == nil {
   162  		t.Errorf("invalid UTF8 string was accepted")
   163  	}
   164  }