1 // Copyright 2015 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 mime 6 7 import ( 8 "errors" 9 "io" 10 "io/ioutil" 11 "strings" 12 "testing" 13 ) 14 15 func TestEncodeWord(t *testing.T) { 16 utf8, iso88591 := "utf-8", "iso-8859-1" 17 tests := []struct { 18 enc WordEncoder 19 charset string 20 src, exp string 21 }{ 22 {QEncoding, utf8, "Franois-Jrme", "=?utf-8?q?Fran=C3=A7ois-J=C3=A9r=C3=B4me?="}, 23 {BEncoding, utf8, "Caf", "=?utf-8?b?Q2Fmw6k=?="}, 24 {QEncoding, iso88591, "La Seleo", "=?iso-8859-1?q?La_Sele=C3=A7=C3=A3o?="}, 25 {QEncoding, utf8, "", ""}, 26 {QEncoding, utf8, "A", "A"}, 27 {QEncoding, iso88591, "a", "a"}, 28 {QEncoding, utf8, "123 456", "123 456"}, 29 {QEncoding, utf8, "\t !\"#$%&'()*+,-./ :;<>?@[\\]^_`{|}~", "\t !\"#$%&'()*+,-./ :;<>?@[\\]^_`{|}~"}, 30 {QEncoding, utf8, strings.Repeat("", 10), "=?utf-8?q?" + strings.Repeat("=C3=A9", 10) + "?="}, 31 {QEncoding, utf8, strings.Repeat("", 11), "=?utf-8?q?" + strings.Repeat("=C3=A9", 10) + "?= =?utf-8?q?=C3=A9?="}, 32 {QEncoding, iso88591, strings.Repeat("\xe9", 22), "=?iso-8859-1?q?" + strings.Repeat("=E9", 22) + "?="}, 33 {QEncoding, utf8, strings.Repeat("\x80", 22), "=?utf-8?q?" + strings.Repeat("=80", 21) + "?= =?utf-8?q?=80?="}, 34 {BEncoding, iso88591, strings.Repeat("\xe9", 45), "=?iso-8859-1?b?" + strings.Repeat("6enp", 15) + "?="}, 35 {BEncoding, utf8, strings.Repeat("\x80", 48), "=?utf-8?b?" + strings.Repeat("gICA", 15) + "?= =?utf-8?b?gICA?="}, 36 } 37 38 for _, test := range tests { 39 if s := test.enc.Encode(test.charset, test.src); s != test.exp { 40 t.Errorf("Encode(%q) = %q, want %q", test.src, s, test.exp) 41 } 42 } 43 } 44 45 func TestEncodedWordLength(t *testing.T) { 46 tests := []struct { 47 enc WordEncoder 48 src string 49 }{ 50 {QEncoding, strings.Repeat("", 30)}, 51 {QEncoding, strings.Repeat("", 60)}, 52 {BEncoding, strings.Repeat("", 25)}, 53 {BEncoding, strings.Repeat("", 37)}, 54 {BEncoding, strings.Repeat("\x80", 50)}, 55 {QEncoding, "{$firstname} Bienvendio a Apostolica, aqu inicia el camino de tu"}, 56 } 57 58 for _, test := range tests { 59 s := test.enc.Encode("utf-8", test.src) 60 wordLen := 0 61 for i := 0; i < len(s); i++ { 62 if s[i] == ' ' { 63 wordLen = 0 64 continue 65 } 66 67 wordLen++ 68 if wordLen > maxEncodedWordLen { 69 t.Errorf("Encode(%q) has more than %d characters: %q", 70 test.src, maxEncodedWordLen, s) 71 } 72 } 73 } 74 } 75 76 func TestDecodeWord(t *testing.T) { 77 tests := []struct { 78 src, exp string 79 hasErr bool 80 }{ 81 {"=?UTF-8?Q?=C2=A1Hola,_se=C3=B1or!?=", "Hola, seor!", false}, 82 {"=?UTF-8?Q?Fran=C3=A7ois-J=C3=A9r=C3=B4me?=", "Franois-Jrme", false}, 83 {"=?UTF-8?q?ascii?=", "ascii", false}, 84 {"=?utf-8?B?QW5kcsOp?=", "Andr", false}, 85 {"=?ISO-8859-1?Q?Rapha=EBl_Dupont?=", "Raphal Dupont", false}, 86 {"=?utf-8?b?IkFudG9uaW8gSm9zw6kiIDxqb3NlQGV4YW1wbGUub3JnPg==?=", `"Antonio Jos" <jose (a] example.org>`, false}, 87 {"=?UTF-8?A?Test?=", "", true}, 88 {"=?UTF-8?Q?A=B?=", "", true}, 89 {"=?UTF-8?Q?=A?=", "", true}, 90 {"=?UTF-8?A?A?=", "", true}, 91 } 92 93 for _, test := range tests { 94 dec := new(WordDecoder) 95 s, err := dec.Decode(test.src) 96 if test.hasErr && err == nil { 97 t.Errorf("Decode(%q) should return an error", test.src) 98 continue 99 } 100 if !test.hasErr && err != nil { 101 t.Errorf("Decode(%q): %v", test.src, err) 102 continue 103 } 104 if s != test.exp { 105 t.Errorf("Decode(%q) = %q, want %q", test.src, s, test.exp) 106 } 107 } 108 } 109 110 func TestDecodeHeader(t *testing.T) { 111 tests := []struct { 112 src, exp string 113 }{ 114 {"=?UTF-8?Q?=C2=A1Hola,_se=C3=B1or!?=", "Hola, seor!"}, 115 {"=?UTF-8?Q?Fran=C3=A7ois-J=C3=A9r=C3=B4me?=", "Franois-Jrme"}, 116 {"=?UTF-8?q?ascii?=", "ascii"}, 117 {"=?utf-8?B?QW5kcsOp?=", "Andr"}, 118 {"=?ISO-8859-1?Q?Rapha=EBl_Dupont?=", "Raphal Dupont"}, 119 {"Jean", "Jean"}, 120 {"=?utf-8?b?IkFudG9uaW8gSm9zw6kiIDxqb3NlQGV4YW1wbGUub3JnPg==?=", `"Antonio Jos" <jose (a] example.org>`}, 121 {"=?UTF-8?A?Test?=", "=?UTF-8?A?Test?="}, 122 {"=?UTF-8?Q?A=B?=", "=?UTF-8?Q?A=B?="}, 123 {"=?UTF-8?Q?=A?=", "=?UTF-8?Q?=A?="}, 124 {"=?UTF-8?A?A?=", "=?UTF-8?A?A?="}, 125 // Incomplete words 126 {"=?", "=?"}, 127 {"=?UTF-8?", "=?UTF-8?"}, 128 {"=?UTF-8?=", "=?UTF-8?="}, 129 {"=?UTF-8?Q", "=?UTF-8?Q"}, 130 {"=?UTF-8?Q?", "=?UTF-8?Q?"}, 131 {"=?UTF-8?Q?=", "=?UTF-8?Q?="}, 132 {"=?UTF-8?Q?A", "=?UTF-8?Q?A"}, 133 {"=?UTF-8?Q?A?", "=?UTF-8?Q?A?"}, 134 // Tests from RFC 2047 135 {"=?ISO-8859-1?Q?a?=", "a"}, 136 {"=?ISO-8859-1?Q?a?= b", "a b"}, 137 {"=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=", "ab"}, 138 {"=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=", "ab"}, 139 {"=?ISO-8859-1?Q?a?= \r\n\t =?ISO-8859-1?Q?b?=", "ab"}, 140 {"=?ISO-8859-1?Q?a_b?=", "a b"}, 141 } 142 143 for _, test := range tests { 144 dec := new(WordDecoder) 145 s, err := dec.DecodeHeader(test.src) 146 if err != nil { 147 t.Errorf("DecodeHeader(%q): %v", test.src, err) 148 } 149 if s != test.exp { 150 t.Errorf("DecodeHeader(%q) = %q, want %q", test.src, s, test.exp) 151 } 152 } 153 } 154 155 func TestCharsetDecoder(t *testing.T) { 156 tests := []struct { 157 src string 158 want string 159 charsets []string 160 content []string 161 }{ 162 {"=?utf-8?b?Q2Fmw6k=?=", "Caf", nil, nil}, 163 {"=?ISO-8859-1?Q?caf=E9?=", "caf", nil, nil}, 164 {"=?US-ASCII?Q?foo_bar?=", "foo bar", nil, nil}, 165 {"=?utf-8?Q?=?=", "=?utf-8?Q?=?=", nil, nil}, 166 {"=?utf-8?Q?=A?=", "=?utf-8?Q?=A?=", nil, nil}, 167 { 168 "=?ISO-8859-15?Q?f=F5=F6?= =?windows-1252?Q?b=E0r?=", 169 "f\xf5\xf6b\xe0r", 170 []string{"iso-8859-15", "windows-1252"}, 171 []string{"f\xf5\xf6", "b\xe0r"}, 172 }, 173 } 174 175 for _, test := range tests { 176 i := 0 177 dec := &WordDecoder{ 178 CharsetReader: func(charset string, input io.Reader) (io.Reader, error) { 179 if charset != test.charsets[i] { 180 t.Errorf("DecodeHeader(%q), got charset %q, want %q", test.src, charset, test.charsets[i]) 181 } 182 content, err := ioutil.ReadAll(input) 183 if err != nil { 184 t.Errorf("DecodeHeader(%q), error in reader: %v", test.src, err) 185 } 186 got := string(content) 187 if got != test.content[i] { 188 t.Errorf("DecodeHeader(%q), got content %q, want %q", test.src, got, test.content[i]) 189 } 190 i++ 191 192 return strings.NewReader(got), nil 193 }, 194 } 195 got, err := dec.DecodeHeader(test.src) 196 if err != nil { 197 t.Errorf("DecodeHeader(%q): %v", test.src, err) 198 } 199 if got != test.want { 200 t.Errorf("DecodeHeader(%q) = %q, want %q", test.src, got, test.want) 201 } 202 } 203 } 204 205 func TestCharsetDecoderError(t *testing.T) { 206 dec := &WordDecoder{ 207 CharsetReader: func(charset string, input io.Reader) (io.Reader, error) { 208 return nil, errors.New("Test error") 209 }, 210 } 211 212 if _, err := dec.DecodeHeader("=?charset?Q?foo?="); err == nil { 213 t.Error("DecodeHeader should return an error") 214 } 215 } 216 217 func BenchmarkQEncodeWord(b *testing.B) { 218 for i := 0; i < b.N; i++ { 219 QEncoding.Encode("UTF-8", "Hola, seor!") 220 } 221 } 222 223 func BenchmarkQDecodeWord(b *testing.B) { 224 dec := new(WordDecoder) 225 226 for i := 0; i < b.N; i++ { 227 dec.Decode("=?utf-8?q?=C2=A1Hola,_se=C3=B1or!?=") 228 } 229 } 230 231 func BenchmarkQDecodeHeader(b *testing.B) { 232 dec := new(WordDecoder) 233 234 for i := 0; i < b.N; i++ { 235 dec.DecodeHeader("=?utf-8?q?=C2=A1Hola,_se=C3=B1or!?=") 236 } 237 } 238
