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cpd_test.go
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cpd_test.go
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package cpd
import (
"fmt"
"io"
"io/ioutil"
"os"
fp "path/filepath"
"strings"
"sync"
"testing"
"github.com/stretchr/testify/assert"
)
type tStringHasBom struct {
id IDCodePage
s string
r bool
}
var dStringHasBom = []tStringHasBom{
{0, "", false},
{ASCII, "", false},
{CP866, "CP866", false},
{CP1251, "\xD0\xEE\xF1\xF1\xE8\xFF", false},
{CP1251, "\xff\xfe\xD0\xEE\xF1\xF1\xE8\xFF", false}, // contain UTF16LE bom, false because CP1251 have no bom
{UTF8, "\xef\xbb\xbf\xD0\x94\xD0\xB5\xD0\xB4", true}, // Дед UTF8 with bom
{UTF8, "\xef\xbb\xbe\xD0\xEE\xF1\xF1\xE8\xFF", false}, // UTF8 without bom
{UTF8, "\xff\xbb\xbe\xD0\xEE\xF1\xF1\xE8\xFF", false}, // UTF8 without bom
{UTF16BE, "\xfe\xff\xD0\xEE\xF1\xF1\xE8\xFF", true},
{UTF16LE, "\xff\xfe\xD0\xEE\xF1\xF1\xE8\xFF", true},
{UTF32BE, "\x00\x00\xfe\xff\xD0\xEE\xF1\xF1\xE8\xFF", true},
{UTF32LE, "\xff\xfe\x00\x00\xD0\xEE\xF1\xF1\xE8\xFF", true},
}
func TestStringHasBom(t *testing.T) {
for i, v := range dStringHasBom {
assert.Equal(t, v.r, v.id.StringHasBom(v.s), fmt.Sprintf("test: %d, cp: %s", i, v.id))
}
}
type tCodePageAsString struct {
id IDCodePage
s string
}
var dCodePageAsString = []tCodePageAsString{
{0, ""},
{3, "ASCII"},
{CP866, "CP866"},
{CP1251, "CP1251"},
{60000, ""},
}
func TestCodePageAsString(t *testing.T) {
for i, v := range dCodePageAsString {
s := CodepageAsString(v.id)
assert.Equal(t, v.s, s, fmt.Sprintf("<CodePageAsString> on test: %d return: %s, expected: %s", i, s, v.s))
}
}
func TestCodepageString(t *testing.T) {
for i, v := range dCodePageAsString {
s := v.id.String()
assert.Equal(t, v.s, s, fmt.Sprintf("<CodePageAsString> on test: %d return: %s, expected: %s", i, s, v.s))
}
}
type tFileCodePageDetectTest struct {
fn string //filename
st string //stop string, not using now
e error //
r IDCodePage //expected result
}
var dFileCodePageDetect = []tFileCodePageDetectTest{
{fp.Join("test_files/utf16le-woBOM-only-ru.txt"), "", nil, UTF16LE}, //file contain utf16 little endian without bom
{fp.Join("test_files/utf16le-woBOM-no-ru.txt"), "", nil, UTF16LE}, //file contain utf16 little endian without bom
{fp.Join("test_files/utf16le-woBOM-only-latin.txt"), "", nil, UTF16LE}, //file contain utf16 little endian without bom
{fp.Join("test_files/utf16le_las.txt"), "", nil, UTF16LE}, //file contain utf16 little endian without bom
{fp.Join("test_files/utf16be_las.txt"), "", nil, UTF16BE}, //file contain utf16 big endian with bom
{fp.Join("test_files/866&1251.txt"), "", nil, CP1251}, //file contain more 1251 then 866
{fp.Join("test_files/empty_file.txt"), "", nil, UTF8}, //file exist but empty, no error, return ASCII
{fp.Join("test_files/IBM866.txt"), "", nil, CP866}, //file contain IBM866
{fp.Join("test_files/ISO8859-5.txt"), "", nil, ISOLatinCyrillic}, //file contain ISO8859-5
{fp.Join("test_files/KOI8-r.txt"), "", nil, KOI8R}, //file contain KOI8
{fp.Join("test_files/KOI8-r2.txt"), "", nil, KOI8R}, //file contain KOI8
{fp.Join("test_files/noCodePage.txt"), "", nil, UTF8}, //file contain rune only ASCII
{fp.Join("test_files/rune_encode_error.txt"), "", nil, ISOLatinCyrillic}, //file contain special rune -> encode error, but detect NO error
{fp.Join("test_files/rune_error_1251.txt"), "", nil, CP1251}, //file contain 1251 and special rune -> encode error, but detect NO error
{fp.Join("test_files/utf8.txt"), "", nil, UTF8}, //file contain utf8 without bom
{fp.Join("test_files/utf8-wBOM.txt"), "", nil, UTF8}, //file contain utf8 with bom
{fp.Join("test_files/utf8-woBOM.txt"), "", nil, UTF8}, //file contain utf8 without bom
{fp.Join("test_files/utf16be-wBOM.txt"), "", nil, UTF16BE}, //file contain utf16 big endian with bom
{fp.Join("test_files/utf16be-woBOM.txt"), "", nil, UTF16BE}, //file contain utf16 big endian without bom
{fp.Join("test_files/utf16le-wBOM.txt"), "", nil, UTF16LE}, //file contain utf16 little endian with bom
{fp.Join("test_files/utf16le-woBOM.txt"), "", nil, UTF16LE}, //file contain utf16 little endian without bom
{fp.Join("test_files/utf32be-wBOM.txt"), "", nil, UTF32BE}, //file contain utf32 big endian with bom
{fp.Join("test_files/utf32be-woBOM.txt"), "", nil, UTF32BE}, //file contain utf32 big endian without bom
{fp.Join("test_files/utf32le-wBOM.txt"), "", nil, UTF32LE}, //file contain utf32 little endian with bom
{fp.Join("test_files/utf32le-woBOM.txt"), "", nil, UTF32LE}, //file contain utf32 little endian without bom
{fp.Join("test_files/Win1251.txt"), "", nil, CP1251}, //file contain Windows1251
{fp.Join("test_files/win1251_upper.txt"), "", nil, CP1251}, //file contain Windows1251
{fp.Join("test_files/utf16be-woBOM-only-latin.txt"), "", nil, UTF16BE}, //file contain utf16be with bom
{fp.Join("test_files/utf16be-woBOM-no-ru.txt"), "", nil, UTF16BE}, //file contain utf16be with bom
{fp.Join("test_files/utf16be-woBOM-only-ru.txt"), "", nil, UTF16BE}, //file contain utf16be with bom
{fp.Join("test_files/utf32be-ascii-no-ru.txt"), "", nil, UTF16BE}, //file contain utf32be w/o bom w/o ru, detected as UTF16BE
{fp.Join("test_files/utf32le-ascii-no-ru.txt"), "", nil, UTF16LE}, //file contain utf32le w/o bom w/o ru, detected as UTF16LE
}
//FileCodePageDetect
func TestFileCodePageDetect(t *testing.T) {
var (
err error
res IDCodePage
)
for _, d := range dFileCodePageDetect {
res, err = FileCodepageDetect(d.fn)
assert.Equal(t, err, d.e, fmt.Sprintf("<FileCodePageDetect> on file '%s' expected error: '%v', got: '%v', ", d.fn, d.e, err))
assert.Equal(t, res, d.r, fmt.Sprintf("<FileCodePageDetect> on file '%s' expected result: %s, got: %s", d.fn, d.r, res))
}
_, err = FileCodepageDetect("-.-") //file "-.-" not exist
assert.NotNil(t, err, "<FileCodePageDetect> on file '-.-' must return error, but return nil")
_, err = FileCodepageDetect("") //file "" not exist
assert.NotNil(t, err, "<FileCodePageDetect> on file '' must return error, but return nil")
}
func fileCodepageDetect(wg *sync.WaitGroup, t *testing.T, trusted IDCodePage, f string) {
defer wg.Done()
res, _ := FileCodepageDetect(f)
assert.Equal(t, trusted, res, fmt.Sprintf("<FileCodePageDetect> on file '%s' expected: %s, got: %s", f, trusted, res))
}
//тестирование в многопоточном режиме
func TestFileCodePageDetectM(t *testing.T) {
var wg sync.WaitGroup
for _, d := range dFileCodePageDetect {
wg.Add(1)
go fileCodepageDetect(&wg, t, d.r, d.fn)
}
wg.Wait()
}
// TestCodePageDetect - тестирование метода CodePageDetect
// проверки на входные параметры
// проверка самой работы осуществляется через FileCodePageDetect()
func TestCodePageDetect(t *testing.T) {
// 1. nil входящий поток явный nil, параметр останова отсутствует
tmp, err := CodepageDetect(nil)
assert.Nil(t, err, fmt.Sprintf("<CodePageDetect> on input nil return error != nil\n"))
assert.Equal(t, tmp, ASCII, fmt.Sprintf("<CodePageDetect> on input nil return code page != ASCII\n"))
var data *os.File
// 2. nil, "~" входящий поток неинициализированный указатель, параметр останова присутствует
res, err := CodepageDetect(data)
assert.NotNil(t, err, fmt.Sprintf("<CodePageDetect> on empty io.Reader return error != nil, data: %+v, err: %v\n", data, err))
assert.Equal(t, res, ASCII, fmt.Sprintf("<CodePageDetect> on empty io.Reader = %+v return code page %s != ASCII\n", data, res))
// 3. входящий поток существует, но пустой
res, err = CodepageDetect(strings.NewReader(""))
assert.Nil(t, err, fmt.Sprintf("<CodePageDetect> on input \"\" return error: %v, expected nil\n", err))
assert.Equal(t, res, UTF8, fmt.Sprintf("<CodePageDetect> on input \"\" return %s, expected ASCII\n", res))
}
//FileConvertCodePage
func TestFileConvertCodePage(t *testing.T) {
err := FileConvertCodepage("", CP866, CP1251)
assert.NotNil(t, err, fmt.Sprintf("<FileConvertCodePage> on empty file name expected error, got: %v", err))
err = FileConvertCodepage("", CP866, CP866)
assert.Nil(t, err, fmt.Sprintf("<FileConvertCodePage> on fromCp == toCp expected error==nil, got: %v", err))
err = FileConvertCodepage("123", UTF8, CP866)
assert.Nil(t, err, fmt.Sprintf("<FileConvertCodePage> on fromCp or toCp not Windows1251 or IBM866 expected error == nil, got: %v", err))
err = FileConvertCodepage("123", CP866, UTF16LE)
assert.Nil(t, err, fmt.Sprintf("<FileConvertCodePage> on fromCp or toCp not Windows1251 or IBM866 expected error == nil, got: %v", err))
err = FileConvertCodepage(fp.Join("test_files/rune_encode_error.txt"), CP866, CP1251)
assert.NotNil(t, err, fmt.Sprintf("<FileConvertCodePage> expected error, got: %v", err))
os.Link(fp.Join("test_files/866to1251.txt"), fp.Join("test_files/866to1251.tmp"))
err = FileConvertCodepage(fp.Join("test_files/866to1251.tmp"), CP866, CP1251)
assert.Nil(t, err, fmt.Sprintf("<FileConvertCodePage> expect no err, got: %v", err))
os.Remove(fp.Join("test_files/866to1251.tmp"))
}
//ConvertCodePage
func TestStrConvertCodePage(t *testing.T) {
s, err := StrConvertCodepage(string([]byte{0x91, 0xE2, 0xE0}), CP866, CP1251)
assert.Nil(t, err, fmt.Sprintf("<StrConvertCodePage> on test 1 return err: %v unexpected nil", err))
assert.Equal(t, s, string([]byte{0xD1, 0xF2, 0xF0}), fmt.Sprintf("<StrConvertCodePage> on test CP866->CP1251 return string: %s, expected: 'Стр'", s))
s, err = StrConvertCodepage(string([]byte{0xFF, 0xC9, 0xB8}), CP1251, CP866)
assert.Nil(t, err, fmt.Sprintf("<StrConvertCodePage> on test CP1251->CP866 return unexpected err: %v", err))
assert.Equal(t, s, string([]byte{0xEF, 0x89, 0xF1}), fmt.Sprintf("<StrConvertCodePage> on test CP1251->CP866 return string: %s, expected: 'яЙё'", s))
s, err = StrConvertCodepage("", CP866, CP1251)
assert.Nil(t, err, fmt.Sprintf("<StrConvertCodePage> with empty input string must return ERROR nil, but return: %v", err))
assert.Equal(t, s, "", fmt.Sprintf("<StrConvertCodePage> with empty input string must return empty, but return: %s", err))
s, err = StrConvertCodepage("1234", CP866, CP866)
assert.Nil(t, err, fmt.Sprintf("<StrConvertCodePage> with equal fromCP and toCp must return nil, but retrurn: %v", err))
assert.Equal(t, s, "1234", fmt.Sprintf("<StrConvertCodePage> with equal fromCP and toCp must return input string, but return: %s", s))
s, err = StrConvertCodepage(string([]byte{0xD0, 0xEE, 0xF1, 0xF1, 0xE8, 0xFF}), CP1251, UTF8)
assert.Nil(t, err, fmt.Sprintf("<StrConvertCodePage> from CP1251 to UTF expect nil, got: %v", err))
assert.Equal(t, s, "Россия", fmt.Sprintf("<StrConvertCodePage> '%s' wrong return from CP1251 to UTF string", s))
s, err = StrConvertCodepage(string([]byte{0x90, 0xAE, 0xE1, 0xE1, 0xA8, 0xEF}), CP866, UTF8)
assert.Nil(t, err, fmt.Sprintf("<StrConvertCodePage> from CP866 to UTF expect nil, got: %v", err))
assert.Equal(t, s, "Россия", fmt.Sprintf("<StrConvertCodePage> '%s' wrong return from CP866 to UTF string", s))
}
type tDecodeUTF16 struct {
iStr string
oStr string
}
var dDecodeUTF16le = []tDecodeUTF16{
{"", ""}, // empty string
{"\xFF\xFE\x14\x04\x35\x04\x34\x04", "Дед"}, // UTF16le with BOM 1
{"\x14\x04\x35\x04\x34\x04", "Дед"}, // UTF16le w/o BOM 2
}
func TestDecodeUtf16le(t *testing.T) {
for i, d := range dDecodeUTF16le {
s := DecodeUTF16le(d.iStr)
assert.Equal(t, d.oStr, s, fmt.Sprintf("test #%d not pass", i))
}
}
var dDecodeUTF16be = []tDecodeUTF16{
{"", ""}, // empty string
{"\xFE\xFF\x04\x14\x04\x35\x04\x34", "Дед"}, // UTF16be with BOM 1
{"\x04\x14\x04\x35\x04\x34", "Дед"}, // UTF16be w/o BOM 2
//{"\x00\x14\xFF\xFF\x04\x34", "Дед"}, // UTF16be w/o BOM 3
}
func TestDecodeUtf16be(t *testing.T) {
for i, d := range dDecodeUTF16be {
s := DecodeUTF16be(d.iStr)
assert.Equal(t, d.oStr, s, fmt.Sprintf("test #%d not pass", i))
}
}
type tNewReader struct {
iStr string // input string
oStr string // result string
cpName string // codepage name
}
//здесь все тесты без ошибок
//
var dNewReader = []tNewReader{
{"\xef\xbb\xbf\xD0\x94\xD0\xB5\xD0\xB4", "Дед", ""}, // UTF8 with BOM 0
{"\xD0\x94\xD0\xB5\xD0\xB4", "Дед", ""}, // UTF8 w/o BOM 1
{"\xFE\xFF\x04\x14\x04\x35\x04\x34", "Дед", ""}, // UTF16be with BOM 2
{"\x04\x14\x04\x35\x04\x34\x00\x20\x04\x20\x04\x43", "Дед Ру", ""}, // UTF16be w/o BOM 3
{"\x04\x14\x04\x35\x04\x34", "Дед", "UTF-16BE"}, // UTF16be w/o BOM 4
{"\xFF\xFE\x14\x04\x35\x04\x34\x04", "Дед", ""}, // UTF16le with BOM 5
{"\x14\x04\x35\x04\x34\x04\x20\x00\x20\x04\x43\x04", "Дед Ру", ""}, // UTF16le w/o BOM 6
{"\x14\x04\x35\x04\x34\x04", "Дед", "UTF16le"}, // UTF16le w/o BOM 7
{"\xD0\xEE\xF1\xF1\xE8\xFF", "Россия", ""}, // CP1251 8
{"\xCE\xED\xEE", "Оно", ""}, // CP1251 9
{"\xCE\xED\xEE", "Оно", "w1251"}, // CP1251 10
{"\xCE\xED\xEE", "Оно", "win1251"}, // CP1251 11
{"1", "1", ""}, // ascii string 12
{"1", "1", "CP866"}, // ascii string 13
{"1", "1", "CP/866"}, // ascii string 14
{"", "", "CP1251"}, // ascii string 15
{"", "", "CP"}, // ascii string 16
{"", "", ""}, // ascii string 17
}
func TestNewReader(t *testing.T) {
var (
r io.Reader
err error
)
for i, d := range dNewReader {
tmp := strings.NewReader(d.iStr)
if len(d.cpName) > 0 {
r, err = NewReader(tmp, d.cpName)
} else {
r, err = NewReader(tmp)
}
assert.Nil(t, err, fmt.Sprintf("test #%d not pass, NewReader() return error", i))
b, err := ioutil.ReadAll(r)
assert.Nil(t, err, fmt.Sprintf("test #%d not pass, ReadAll() return error", i))
assert.Equal(t, d.oStr, string(b), fmt.Sprintf("test #%d not pass", i))
}
//дополнительно тестирование nil ридера
r, err = NewReader(nil)
assert.Equal(t, err.Error(), "cpd: input reader is nil", "test NewReader(nil) return err==nil, expect: 'cpd: input reader is nil'")
assert.Nil(t, r, "test NewReader(nil) return r!=nil, expect: nil")
}
var dNewReaderErrors = []tNewReader{
{"\x00\x00\x04\x20\x00\x00\x04\x43\x00\x00\x04\x41\x00\x00\x04\x41", "cpd: codepage not support decode", "UTF-32Be"}, // UTF-32be Русс 0
{"\x00\x00\x04\x20\x00\x00\x04\x43\x00\x00\x04\x41\x00\x00\x04\x41", "cpd: codepage not support decode", ""}, // UTF-32be Русс 1
{"\x04\x20\x00\x00\x04\x43\x00\x00\x04\x41\x00\x00\x04\x41\x00\x00", "cpd: codepage not support decode", "UTF32le"}, // UTF-32le Русс 2
{"\x04\x20\x00\x00\x04\x43\x00\x00\x04\x41\x00\x00\x04\x41\x00\x00", "cpd: codepage not support decode", ""}, // UTF-32le Русс 3
}
// тестирование случаев с ошибкой
func TestNewReaderError(t *testing.T) {
var (
r io.Reader
err error
)
for i, d := range dNewReaderErrors {
tmp := strings.NewReader(d.iStr)
if len(d.cpName) > 0 {
r, err = NewReader(tmp, d.cpName)
} else {
r, err = NewReader(tmp)
}
// мы должны получить ошибку: 'cpd: codepage not support decode'
// кроме того вернётся поданый на вход ридер
assert.NotNil(t, err, fmt.Sprintf("test #%d not pass, NewReader() return nil error", i))
assert.Equal(t, tmp, r, fmt.Sprintf("test #%d not pass", i))
}
}
type tNewReaderTo struct {
iStr string // input string
oStr string // result string
cpName string // codepage name
}
var dNewReaderTo = []tNewReaderTo{
{"Дед", "\x84\xA5\xA4", "CP866"}, // 0
{"Дед", "\x04\x14\x04\x35\x04\x34", "UTF16be"}, // 1
{"Дед Ру", "\x04\x14\x04\x35\x04\x34\x00\x20\x04\x20\x04\x43", "UTF-16be"}, // 2
{"Дед Ру", "\x14\x04\x35\x04\x34\x04\x20\x00\x20\x04\x43\x04", "UTF16Le"}, // 3
{"Дед", "\x14\x04\x35\x04\x34\x04", "UTF16le"}, // 4
{"Оно", "\xCE\xED\xEE", "CP-1251"}, // 5
{"О н о", "\xCE\x20\xED\x20\xEE", "win1251"}, // 6
{"\xef\xbb\xbf\xD0\x9E\x20\xD0\xBD\x20\xD0\xBe", "\xCE\x20\xED\x20\xEE", "CP1251"}, // 7 input UTF8 with bom, convert to CP1251, BOM is expected to be deleted
{"\xef\xbb\xbf\xD0\x94\xD0\xB5\xD0\xB4", "Дед", "UTF8"}, // 8 input UTF8 with bom, convert to UTF8, BOM is expected to be deleted
{"", "", "CP866"}, // empty input string but not empty exist codepage name 11
}
func TestNewReaderTo(t *testing.T) {
for i, d := range dNewReaderTo {
r, err := NewReaderTo(strings.NewReader(d.iStr), d.cpName)
assert.Nil(t, err, fmt.Sprintf("test #%d not pass, NewReaderTo() return error: '%v'", i, err))
b, err := ioutil.ReadAll(r)
assert.Nil(t, err, fmt.Sprintf("test #%d not pass, ReadAll() return error: '%v'", i, err))
assert.Equal(t, d.oStr, string(b), fmt.Sprintf("test #%d not pass", i))
}
}
// тестирование случаев с ошибкой
var dNewReaderToError = []tNewReaderTo{
{"sample", "cpd: output codepage not support encode", "UTF-32"}, // 0 landing codepage not support encoding
{"1234", "cpd: output codepage not support encode", ""}, // 2 empty landing codepage submitted
{"Дед Ру", "cpd: output codepage not support encode", "cpMY"}, // 3 not exist landing codepage submitted
{"", "cpd: output codepage not support encode", "<CP>"}, // 4 empty input string but not empty landing codepage submitted
{"", "cpd: output codepage not support encode", ""}, // 5 empty input string and empty landing codepage submitted
}
func TestNewReaderToError(t *testing.T) {
for i, d := range dNewReaderToError {
_, err := NewReaderTo(strings.NewReader(d.iStr), d.cpName)
assert.Equal(t, d.oStr, err.Error(), fmt.Sprintf("test #%d. error expect: %s, got: %s", i, d.oStr, err.Error()))
}
}
type tSupportedEncoders struct {
cpn string // input codepage name
res bool // result
}
var dSupportedEncoders = []tSupportedEncoders{
{"", false}, // 0
{"<>", false}, // 1
{"CP866", true}, // 2
{"UTF32", false}, // 3
{"UTF32le", false}, // 4
}
func TestSupportedEncoder(t *testing.T) {
for i, d := range dSupportedEncoders {
r := SupportedEncoder(d.cpn)
assert.Equal(t, d.res, r, fmt.Sprintf("test #%d not pass", i))
}
}