mirror of
https://github.com/go-gitea/gitea.git
synced 2025-12-14 18:43:01 +00:00
248 lines
9.4 KiB
Go
248 lines
9.4 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package charset
|
|
|
|
import (
|
|
"io"
|
|
"os"
|
|
"strings"
|
|
"testing"
|
|
|
|
"code.gitea.io/gitea/modules/setting"
|
|
"code.gitea.io/gitea/modules/test"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func TestMain(m *testing.M) {
|
|
setting.Repository.DetectedCharsetScore = map[string]int{}
|
|
for i, charset := range setting.Repository.DetectedCharsetsOrder {
|
|
setting.Repository.DetectedCharsetScore[strings.ToLower(charset)] = i
|
|
}
|
|
os.Exit(m.Run())
|
|
}
|
|
|
|
func TestMaybeRemoveBOM(t *testing.T) {
|
|
res := maybeRemoveBOM([]byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, ConvertOpts{})
|
|
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
|
|
|
|
res = maybeRemoveBOM([]byte{0xef, 0xbb, 0xbf, 0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, ConvertOpts{})
|
|
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
|
|
}
|
|
|
|
func TestToUTF8(t *testing.T) {
|
|
// Note: golang compiler seems so behave differently depending on the current
|
|
// locale, so some conversions might behave differently. For that reason, we don't
|
|
// depend on particular conversions but in expected behaviors.
|
|
|
|
res := ToUTF8([]byte{0x41, 0x42, 0x43}, ConvertOpts{})
|
|
assert.Equal(t, "ABC", string(res))
|
|
|
|
// "áéíóú"
|
|
res = ToUTF8([]byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, ConvertOpts{})
|
|
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
|
|
|
|
// "áéíóú"
|
|
res = ToUTF8([]byte{
|
|
0xef, 0xbb, 0xbf, 0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3,
|
|
0xc3, 0xba,
|
|
}, ConvertOpts{})
|
|
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
|
|
|
|
res = ToUTF8([]byte{
|
|
0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63,
|
|
0xF3, 0x6D, 0x6F, 0x20, 0xF1, 0x6F, 0x73, 0x41, 0x41, 0x41, 0x2e,
|
|
}, ConvertOpts{})
|
|
stringMustStartWith(t, "Hola,", res)
|
|
stringMustEndWith(t, "AAA.", res)
|
|
|
|
res = ToUTF8([]byte{
|
|
0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63,
|
|
0xF3, 0x6D, 0x6F, 0x20, 0x07, 0xA4, 0x6F, 0x73, 0x41, 0x41, 0x41, 0x2e,
|
|
}, ConvertOpts{})
|
|
stringMustStartWith(t, "Hola,", res)
|
|
stringMustEndWith(t, "AAA.", res)
|
|
|
|
res = ToUTF8([]byte{
|
|
0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63,
|
|
0xF3, 0x6D, 0x6F, 0x20, 0x81, 0xA4, 0x6F, 0x73, 0x41, 0x41, 0x41, 0x2e,
|
|
}, ConvertOpts{})
|
|
stringMustStartWith(t, "Hola,", res)
|
|
stringMustEndWith(t, "AAA.", res)
|
|
|
|
// Japanese (Shift-JIS)
|
|
// 日属秘ぞしちゅ。
|
|
res = ToUTF8([]byte{
|
|
0x93, 0xFA, 0x91, 0xAE, 0x94, 0xE9, 0x82, 0xBC, 0x82, 0xB5, 0x82,
|
|
0xBF, 0x82, 0xE3, 0x81, 0x42,
|
|
}, ConvertOpts{})
|
|
assert.Equal(t, []byte{
|
|
0xE6, 0x97, 0xA5, 0xE5, 0xB1, 0x9E, 0xE7, 0xA7, 0x98, 0xE3,
|
|
0x81, 0x9E, 0xE3, 0x81, 0x97, 0xE3, 0x81, 0xA1, 0xE3, 0x82, 0x85, 0xE3, 0x80, 0x82,
|
|
}, res)
|
|
|
|
res = ToUTF8([]byte{0x00, 0x00, 0x00, 0x00}, ConvertOpts{})
|
|
assert.Equal(t, []byte{0x00, 0x00, 0x00, 0x00}, res)
|
|
}
|
|
|
|
func TestToUTF8WithFallback(t *testing.T) {
|
|
// "ABC"
|
|
res := ToUTF8WithFallback([]byte{0x41, 0x42, 0x43}, ConvertOpts{})
|
|
assert.Equal(t, []byte{0x41, 0x42, 0x43}, res)
|
|
|
|
// "áéíóú"
|
|
res = ToUTF8WithFallback([]byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, ConvertOpts{})
|
|
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
|
|
|
|
// UTF8 BOM + "áéíóú"
|
|
res = ToUTF8WithFallback([]byte{0xef, 0xbb, 0xbf, 0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, ConvertOpts{})
|
|
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
|
|
|
|
// "Hola, así cómo ños"
|
|
res = ToUTF8WithFallback([]byte{
|
|
0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63,
|
|
0xF3, 0x6D, 0x6F, 0x20, 0xF1, 0x6F, 0x73,
|
|
}, ConvertOpts{})
|
|
assert.Equal(t, []byte{
|
|
0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xC3, 0xAD, 0x20, 0x63,
|
|
0xC3, 0xB3, 0x6D, 0x6F, 0x20, 0xC3, 0xB1, 0x6F, 0x73,
|
|
}, res)
|
|
|
|
// "Hola, así cómo "
|
|
minmatch := []byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xC3, 0xAD, 0x20, 0x63, 0xC3, 0xB3, 0x6D, 0x6F, 0x20}
|
|
|
|
res = ToUTF8WithFallback([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x07, 0xA4, 0x6F, 0x73}, ConvertOpts{})
|
|
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
|
|
assert.Equal(t, minmatch, res[0:len(minmatch)])
|
|
|
|
res = ToUTF8WithFallback([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x81, 0xA4, 0x6F, 0x73}, ConvertOpts{})
|
|
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
|
|
assert.Equal(t, minmatch, res[0:len(minmatch)])
|
|
|
|
// Japanese (Shift-JIS)
|
|
// "日属秘ぞしちゅ。"
|
|
res = ToUTF8WithFallback([]byte{0x93, 0xFA, 0x91, 0xAE, 0x94, 0xE9, 0x82, 0xBC, 0x82, 0xB5, 0x82, 0xBF, 0x82, 0xE3, 0x81, 0x42}, ConvertOpts{})
|
|
assert.Equal(t, []byte{
|
|
0xE6, 0x97, 0xA5, 0xE5, 0xB1, 0x9E, 0xE7, 0xA7, 0x98, 0xE3,
|
|
0x81, 0x9E, 0xE3, 0x81, 0x97, 0xE3, 0x81, 0xA1, 0xE3, 0x82, 0x85, 0xE3, 0x80, 0x82,
|
|
}, res)
|
|
|
|
res = ToUTF8WithFallback([]byte{0x00, 0x00, 0x00, 0x00}, ConvertOpts{})
|
|
assert.Equal(t, []byte{0x00, 0x00, 0x00, 0x00}, res)
|
|
}
|
|
|
|
func TestToUTF8DropErrors(t *testing.T) {
|
|
// "ABC"
|
|
res := ToUTF8DropErrors([]byte{0x41, 0x42, 0x43})
|
|
assert.Equal(t, []byte{0x41, 0x42, 0x43}, res)
|
|
|
|
// "áéíóú"
|
|
res = ToUTF8DropErrors([]byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
|
|
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
|
|
|
|
// UTF8 BOM + "áéíóú"
|
|
res = ToUTF8DropErrors([]byte{0xef, 0xbb, 0xbf, 0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba})
|
|
assert.Equal(t, []byte{0xc3, 0xa1, 0xc3, 0xa9, 0xc3, 0xad, 0xc3, 0xb3, 0xc3, 0xba}, res)
|
|
|
|
// "Hola, así cómo ños"
|
|
res = ToUTF8DropErrors([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0xF1, 0x6F, 0x73})
|
|
assert.Equal(t, []byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73}, res[:8])
|
|
assert.Equal(t, []byte{0x73}, res[len(res)-1:])
|
|
|
|
// "Hola, así cómo "
|
|
minmatch := []byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xC3, 0xAD, 0x20, 0x63, 0xC3, 0xB3, 0x6D, 0x6F, 0x20}
|
|
|
|
res = ToUTF8DropErrors([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x07, 0xA4, 0x6F, 0x73})
|
|
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
|
|
assert.Equal(t, minmatch, res[0:len(minmatch)])
|
|
|
|
res = ToUTF8DropErrors([]byte{0x48, 0x6F, 0x6C, 0x61, 0x2C, 0x20, 0x61, 0x73, 0xED, 0x20, 0x63, 0xF3, 0x6D, 0x6F, 0x20, 0x81, 0xA4, 0x6F, 0x73})
|
|
// Do not fail for differences in invalid cases, as the library might change the conversion criteria for those
|
|
assert.Equal(t, minmatch, res[0:len(minmatch)])
|
|
|
|
// Japanese (Shift-JIS)
|
|
// "日属秘ぞしちゅ。"
|
|
res = ToUTF8DropErrors([]byte{0x93, 0xFA, 0x91, 0xAE, 0x94, 0xE9, 0x82, 0xBC, 0x82, 0xB5, 0x82, 0xBF, 0x82, 0xE3, 0x81, 0x42})
|
|
assert.Equal(t, []byte{
|
|
0xE6, 0x97, 0xA5, 0xE5, 0xB1, 0x9E, 0xE7, 0xA7, 0x98, 0xE3,
|
|
0x81, 0x9E, 0xE3, 0x81, 0x97, 0xE3, 0x81, 0xA1, 0xE3, 0x82, 0x85, 0xE3, 0x80, 0x82,
|
|
}, res)
|
|
|
|
res = ToUTF8DropErrors([]byte{0x00, 0x00, 0x00, 0x00})
|
|
assert.Equal(t, []byte{0x00, 0x00, 0x00, 0x00}, res)
|
|
}
|
|
|
|
func TestDetectEncoding(t *testing.T) {
|
|
testSuccess := func(b []byte, expected string) {
|
|
encoding, err := DetectEncoding(b)
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, expected, encoding)
|
|
}
|
|
|
|
// invalid bytes
|
|
encoding, err := DetectEncoding([]byte{0xfa})
|
|
assert.Error(t, err)
|
|
assert.Equal(t, "UTF-8", encoding)
|
|
|
|
// utf-8
|
|
b := []byte("just some ascii")
|
|
testSuccess(b, "UTF-8")
|
|
|
|
// utf-8-sig: "hey" (with BOM)
|
|
b = []byte{0xef, 0xbb, 0xbf, 0x68, 0x65, 0x79}
|
|
testSuccess(b, "UTF-8")
|
|
|
|
// utf-16: "hey<accented G>"
|
|
b = []byte{0xff, 0xfe, 0x68, 0x00, 0x65, 0x00, 0x79, 0x00, 0xf4, 0x01}
|
|
testSuccess(b, "UTF-16LE")
|
|
|
|
// iso-8859-1: d<accented e>cor<newline>
|
|
b = []byte{0x44, 0xe9, 0x63, 0x6f, 0x72, 0x0a}
|
|
encoding, err = DetectEncoding(b)
|
|
assert.NoError(t, err)
|
|
assert.Contains(t, encoding, "ISO-8859-1")
|
|
|
|
defer test.MockVariableValue(&setting.Repository.AnsiCharset, "MyEncoding")()
|
|
testSuccess(b, "MyEncoding")
|
|
}
|
|
|
|
func stringMustStartWith(t *testing.T, expected string, value []byte) {
|
|
assert.Equal(t, expected, string(value[:len(expected)]))
|
|
}
|
|
|
|
func stringMustEndWith(t *testing.T, expected string, value []byte) {
|
|
assert.Equal(t, expected, string(value[len(value)-len(expected):]))
|
|
}
|
|
|
|
func TestToUTF8WithFallbackReader(t *testing.T) {
|
|
test.MockVariableValue(&ToUTF8WithFallbackReaderPrefetchSize)
|
|
|
|
block := "aá啊🤔"
|
|
runes := []rune(block)
|
|
assert.Len(t, string(runes[0]), 1)
|
|
assert.Len(t, string(runes[1]), 2)
|
|
assert.Len(t, string(runes[2]), 3)
|
|
assert.Len(t, string(runes[3]), 4)
|
|
|
|
content := strings.Repeat(block, 2)
|
|
for i := 1; i < len(content); i++ {
|
|
encoding, err := DetectEncoding([]byte(content[:i]))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, "UTF-8", encoding)
|
|
|
|
ToUTF8WithFallbackReaderPrefetchSize = i
|
|
rd := ToUTF8WithFallbackReader(strings.NewReader(content), ConvertOpts{})
|
|
r, _ := io.ReadAll(rd)
|
|
assert.Equal(t, content, string(r))
|
|
}
|
|
for _, r := range runes {
|
|
content = "abc abc " + string(r) + string(r) + string(r)
|
|
for i := 0; i < len(content); i++ {
|
|
encoding, err := DetectEncoding([]byte(content[:i]))
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, "UTF-8", encoding)
|
|
}
|
|
}
|
|
}
|