281 lines
7.6 KiB
Go
281 lines
7.6 KiB
Go
package quotedprintable
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import (
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"bytes"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"strings"
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"testing"
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)
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func ExampleWordEncoder_Encode() {
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fmt.Println(QEncoding.Encode("utf-8", "¡Hola, señor!"))
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fmt.Println(QEncoding.Encode("utf-8", "Hello!"))
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fmt.Println(BEncoding.Encode("UTF-8", "¡Hola, señor!"))
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fmt.Println(QEncoding.Encode("ISO-8859-1", "Caf\xE9"))
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// Output:
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// =?utf-8?q?=C2=A1Hola,_se=C3=B1or!?=
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// Hello!
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// =?UTF-8?b?wqFIb2xhLCBzZcOxb3Ih?=
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// =?ISO-8859-1?q?Caf=E9?=
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}
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func ExampleWordDecoder_Decode() {
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dec := new(WordDecoder)
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header, err := dec.Decode("=?utf-8?q?=C2=A1Hola,_se=C3=B1or!?=")
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if err != nil {
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panic(err)
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}
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fmt.Println(header)
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dec.CharsetReader = func(charset string, input io.Reader) (io.Reader, error) {
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switch charset {
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case "x-case":
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// Fake character set for example.
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// Real use would integrate with packages such
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// as code.google.com/p/go-charset
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content, err := ioutil.ReadAll(input)
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if err != nil {
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return nil, err
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}
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return bytes.NewReader(bytes.ToUpper(content)), nil
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}
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return nil, fmt.Errorf("unhandled charset %q", charset)
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}
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header, err = dec.Decode("=?x-case?q?hello!?=")
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if err != nil {
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panic(err)
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}
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fmt.Println(header)
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// Output:
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// ¡Hola, señor!
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// HELLO!
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}
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func ExampleWordDecoder_DecodeHeader() {
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dec := new(WordDecoder)
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header, err := dec.DecodeHeader("=?utf-8?q?=C3=89ric?= <eric@example.org>, =?utf-8?q?Ana=C3=AFs?= <anais@example.org>")
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if err != nil {
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panic(err)
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}
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fmt.Println(header)
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header, err = dec.DecodeHeader("=?utf-8?q?=C2=A1Hola,?= =?utf-8?q?_se=C3=B1or!?=")
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if err != nil {
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panic(err)
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}
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fmt.Println(header)
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dec.CharsetReader = func(charset string, input io.Reader) (io.Reader, error) {
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switch charset {
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case "x-case":
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// Fake character set for example.
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// Real use would integrate with packages such
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// as code.google.com/p/go-charset
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content, err := ioutil.ReadAll(input)
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if err != nil {
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return nil, err
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}
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return bytes.NewReader(bytes.ToUpper(content)), nil
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}
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return nil, fmt.Errorf("unhandled charset %q", charset)
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}
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header, err = dec.DecodeHeader("=?x-case?q?hello_?= =?x-case?q?world!?=")
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if err != nil {
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panic(err)
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}
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fmt.Println(header)
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// Output:
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// Éric <eric@example.org>, Anaïs <anais@example.org>
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// ¡Hola, señor!
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// HELLO WORLD!
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}
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func TestEncodeWord(t *testing.T) {
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utf8, iso88591 := "utf-8", "iso-8859-1"
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tests := []struct {
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enc WordEncoder
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charset string
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src, exp string
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}{
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{QEncoding, utf8, "François-Jérôme", "=?utf-8?q?Fran=C3=A7ois-J=C3=A9r=C3=B4me?="},
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{BEncoding, utf8, "Café", "=?utf-8?b?Q2Fmw6k=?="},
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{QEncoding, iso88591, "La Seleção", "=?iso-8859-1?q?La_Sele=C3=A7=C3=A3o?="},
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{QEncoding, utf8, "", ""},
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{QEncoding, utf8, "A", "A"},
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{QEncoding, iso88591, "a", "a"},
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{QEncoding, utf8, "123 456", "123 456"},
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{QEncoding, utf8, "\t !\"#$%&'()*+,-./ :;<>?@[\\]^_`{|}~", "\t !\"#$%&'()*+,-./ :;<>?@[\\]^_`{|}~"},
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}
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for _, test := range tests {
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if s := test.enc.Encode(test.charset, test.src); s != test.exp {
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t.Errorf("Encode(%q) = %q, want %q", test.src, s, test.exp)
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}
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}
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}
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func TestDecodeWord(t *testing.T) {
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tests := []struct {
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src, exp string
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hasErr bool
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}{
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{"=?UTF-8?Q?=C2=A1Hola,_se=C3=B1or!?=", "¡Hola, señor!", false},
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{"=?UTF-8?Q?Fran=C3=A7ois-J=C3=A9r=C3=B4me?=", "François-Jérôme", false},
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{"=?UTF-8?q?ascii?=", "ascii", false},
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{"=?utf-8?B?QW5kcsOp?=", "André", false},
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{"=?ISO-8859-1?Q?Rapha=EBl_Dupont?=", "Raphaël Dupont", false},
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{"=?utf-8?b?IkFudG9uaW8gSm9zw6kiIDxqb3NlQGV4YW1wbGUub3JnPg==?=", `"Antonio José" <jose@example.org>`, false},
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{"=?UTF-8?A?Test?=", "", true},
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{"=?UTF-8?Q?A=B?=", "", true},
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{"=?UTF-8?Q?=A?=", "", true},
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{"=?UTF-8?A?A?=", "", true},
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}
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for _, test := range tests {
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dec := new(WordDecoder)
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s, err := dec.Decode(test.src)
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if test.hasErr && err == nil {
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t.Errorf("Decode(%q) should return an error", test.src)
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continue
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}
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if !test.hasErr && err != nil {
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t.Errorf("Decode(%q): %v", test.src, err)
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continue
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}
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if s != test.exp {
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t.Errorf("Decode(%q) = %q, want %q", test.src, s, test.exp)
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}
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}
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}
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func TestDecodeHeader(t *testing.T) {
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tests := []struct {
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src, exp string
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}{
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{"=?UTF-8?Q?=C2=A1Hola,_se=C3=B1or!?=", "¡Hola, señor!"},
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{"=?UTF-8?Q?Fran=C3=A7ois-J=C3=A9r=C3=B4me?=", "François-Jérôme"},
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{"=?UTF-8?q?ascii?=", "ascii"},
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{"=?utf-8?B?QW5kcsOp?=", "André"},
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{"=?ISO-8859-1?Q?Rapha=EBl_Dupont?=", "Raphaël Dupont"},
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{"Jean", "Jean"},
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{"=?utf-8?b?IkFudG9uaW8gSm9zw6kiIDxqb3NlQGV4YW1wbGUub3JnPg==?=", `"Antonio José" <jose@example.org>`},
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{"=?UTF-8?A?Test?=", "=?UTF-8?A?Test?="},
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{"=?UTF-8?Q?A=B?=", "=?UTF-8?Q?A=B?="},
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{"=?UTF-8?Q?=A?=", "=?UTF-8?Q?=A?="},
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{"=?UTF-8?A?A?=", "=?UTF-8?A?A?="},
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// Incomplete words
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{"=?", "=?"},
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{"=?UTF-8?", "=?UTF-8?"},
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{"=?UTF-8?=", "=?UTF-8?="},
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{"=?UTF-8?Q", "=?UTF-8?Q"},
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{"=?UTF-8?Q?", "=?UTF-8?Q?"},
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{"=?UTF-8?Q?=", "=?UTF-8?Q?="},
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{"=?UTF-8?Q?A", "=?UTF-8?Q?A"},
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{"=?UTF-8?Q?A?", "=?UTF-8?Q?A?"},
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// Tests from RFC 2047
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{"=?ISO-8859-1?Q?a?=", "a"},
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{"=?ISO-8859-1?Q?a?= b", "a b"},
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{"=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=", "ab"},
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{"=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=", "ab"},
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{"=?ISO-8859-1?Q?a?= \r\n\t =?ISO-8859-1?Q?b?=", "ab"},
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{"=?ISO-8859-1?Q?a_b?=", "a b"},
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}
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for _, test := range tests {
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dec := new(WordDecoder)
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s, err := dec.DecodeHeader(test.src)
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if err != nil {
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t.Errorf("DecodeHeader(%q): %v", test.src, err)
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}
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if s != test.exp {
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t.Errorf("DecodeHeader(%q) = %q, want %q", test.src, s, test.exp)
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}
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}
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}
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func TestCharsetDecoder(t *testing.T) {
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tests := []struct {
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src string
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want string
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charsets []string
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content []string
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}{
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{"=?utf-8?b?Q2Fmw6k=?=", "Café", nil, nil},
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{"=?ISO-8859-1?Q?caf=E9?=", "café", nil, nil},
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{"=?US-ASCII?Q?foo_bar?=", "foo bar", nil, nil},
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{"=?utf-8?Q?=?=", "=?utf-8?Q?=?=", nil, nil},
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{"=?utf-8?Q?=A?=", "=?utf-8?Q?=A?=", nil, nil},
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{
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"=?ISO-8859-15?Q?f=F5=F6?= =?windows-1252?Q?b=E0r?=",
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"f\xf5\xf6b\xe0r",
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[]string{"iso-8859-15", "windows-1252"},
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[]string{"f\xf5\xf6", "b\xe0r"},
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},
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}
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for _, test := range tests {
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i := 0
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dec := &WordDecoder{
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CharsetReader: func(charset string, input io.Reader) (io.Reader, error) {
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if charset != test.charsets[i] {
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t.Errorf("DecodeHeader(%q), got charset %q, want %q", test.src, charset, test.charsets[i])
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}
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content, err := ioutil.ReadAll(input)
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if err != nil {
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t.Errorf("DecodeHeader(%q), error in reader: %v", test.src, err)
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}
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got := string(content)
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if got != test.content[i] {
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t.Errorf("DecodeHeader(%q), got content %q, want %q", test.src, got, test.content[i])
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}
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i++
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return strings.NewReader(got), nil
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},
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}
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got, err := dec.DecodeHeader(test.src)
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if err != nil {
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t.Errorf("DecodeHeader(%q): %v", test.src, err)
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}
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if got != test.want {
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t.Errorf("DecodeHeader(%q) = %q, want %q", test.src, got, test.want)
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}
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}
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}
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func TestCharsetDecoderError(t *testing.T) {
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dec := &WordDecoder{
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CharsetReader: func(charset string, input io.Reader) (io.Reader, error) {
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return nil, errors.New("Test error")
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},
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}
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if _, err := dec.DecodeHeader("=?charset?Q?foo?="); err == nil {
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t.Error("DecodeHeader should return an error")
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}
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}
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func BenchmarkQEncodeWord(b *testing.B) {
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for i := 0; i < b.N; i++ {
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QEncoding.Encode("UTF-8", "¡Hola, señor!")
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}
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}
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func BenchmarkQDecodeWord(b *testing.B) {
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dec := new(WordDecoder)
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for i := 0; i < b.N; i++ {
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dec.Decode("=?utf-8?q?=C2=A1Hola,_se=C3=B1or!?=")
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}
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}
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func BenchmarkQDecodeHeader(b *testing.B) {
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dec := new(WordDecoder)
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for i := 0; i < b.N; i++ {
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dec.Decode("=?utf-8?q?=C2=A1Hola,_se=C3=B1or!?=")
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}
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}
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