forked from miku/roundup-langdetect
/
language_detection_test.go
228 lines (210 loc) · 5.26 KB
/
language_detection_test.go
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package main
import (
"bufio"
"bytes"
"fmt"
"io"
"log"
"os"
"testing"
"github.com/endeveit/guesslanguage"
"github.com/jbowles/cld2_nlpt"
"github.com/kapsteur/franco"
"github.com/taruti/langdetect"
)
var tests = []struct {
// input filename
fn string
// list of acceptable languages, order does not matter
lang []string
}{
{fn: "fixtures/30232-0.txt", lang: []string{"hu"}},
{fn: "fixtures/ai-50-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTUxNS9qZWVoLTE5OTYtMi0zMTg", lang: []string{"fr"}},
{fn: "fixtures/ai-50-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTQzMTUvZXZ0aC0xOTY0LTA3MDE", lang: []string{"de", "el"}},
{fn: "fixtures/ai-50-aHR0cDovL2R4LmRvaS5vcmcvMTAuNzc2Ny9zdXMtMjAxMy0wMTA0", lang: []string{"de"}},
{fn: "fixtures/ai-50-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTUxNS9qZWVoLTE5OTQtMi0zMTI", lang: []string{"fr", "en"}},
{fn: "fixtures/pg12987.txt", lang: []string{"da"}},
{fn: "fixtures/pg17489.txt", lang: []string{"fr"}},
{fn: "fixtures/pg29640.txt", lang: []string{"es"}},
{fn: "fixtures/pg29409.txt", lang: []string{"it", "en"}},
{fn: "fixtures/pg46456.txt", lang: []string{"la", "en"}},
}
// map some iso689-3 codes to iso689-2
var iso3to2 = map[string]string{
"hun": "hu",
"fra": "fr",
"deu": "de",
"dan": "da",
}
func stringInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
func NewReader(filename string) io.Reader {
file, err := os.Open(filename)
if err != nil {
log.Fatal(err)
}
return bufio.NewReader(file)
}
func TestLD(t *testing.T) {
for _, c := range tests {
reader := NewReader(c.fn)
buf := new(bytes.Buffer)
for _, size := range []int64{8192, 32768} {
io.CopyN(buf, reader, size)
result := langdetect.DetectLanguage(buf.Bytes(), "")
code := fmt.Sprintf("%s", result)
if !stringInSlice(code, c.lang) {
t.Errorf("%s: got %s, want one of %+v", c.fn, code, c.lang)
}
}
}
}
func BenchmarkLD8k(b *testing.B) {
for _, t := range tests {
reader := NewReader(t.fn)
buf := new(bytes.Buffer)
io.CopyN(buf, reader, 8*1024)
for n := 0; n < b.N; n++ {
langdetect.DetectLanguage(buf.Bytes(), "")
}
}
}
func BenchmarkLD32k(b *testing.B) {
for _, t := range tests {
reader := NewReader(t.fn)
buf := new(bytes.Buffer)
io.CopyN(buf, reader, 32*1024)
for n := 0; n < b.N; n++ {
langdetect.DetectLanguage(buf.Bytes(), "")
}
}
}
func TestGL(t *testing.T) {
for _, c := range tests {
// in fixtures/30232-0.txt: Input string contains invalid UTF-8-encoded runes
if c.fn == "fixtures/30232-0.txt" {
continue
}
reader := NewReader(c.fn)
buf := new(bytes.Buffer)
for _, size := range []int64{8192, 32768} {
io.CopyN(buf, reader, size)
result, err := guesslanguage.Guess(buf.String())
if err != nil {
t.Error(err)
}
if !stringInSlice(result, c.lang) {
t.Errorf("%s: got %s, want one of %+v", c.fn, result, c.lang)
}
}
}
}
func BenchmarkGL8k(b *testing.B) {
for _, t := range tests {
// in fixtures/30232-0.txt: Input string contains invalid UTF-8-encoded runes
if t.fn == "fixtures/30232-0.txt" {
continue
}
reader := NewReader(t.fn)
buf := new(bytes.Buffer)
io.CopyN(buf, reader, 8*1024)
for n := 0; n < b.N; n++ {
_, err := guesslanguage.Guess(buf.String())
if err != nil {
b.Errorf("%s: %s", t.fn, err)
}
}
}
}
func BenchmarkGL32k(b *testing.B) {
for _, t := range tests {
reader := NewReader(t.fn)
buf := new(bytes.Buffer)
io.CopyN(buf, reader, 32*1024)
for n := 0; n < b.N; n++ {
_, err := guesslanguage.Guess(buf.String())
if err != nil {
b.Error(err)
}
}
}
}
func TestFR(t *testing.T) {
for _, c := range tests {
reader := NewReader(c.fn)
buf := new(bytes.Buffer)
for _, size := range []int64{8192, 32768} {
io.CopyN(buf, reader, size)
result := franco.DetectOne(buf.String())
code := iso3to2[result.Code]
if !stringInSlice(code, c.lang) {
t.Errorf("%s: got %s, want one of %+v", c.fn, code, c.lang)
}
}
}
}
func BenchmarkFR8k(b *testing.B) {
for _, t := range tests {
reader := NewReader(t.fn)
buf := new(bytes.Buffer)
io.CopyN(buf, reader, 8*1024)
for n := 0; n < b.N; n++ {
franco.DetectOne(buf.String())
}
}
}
func BenchmarkFR32k(b *testing.B) {
for _, t := range tests {
reader := NewReader(t.fn)
buf := new(bytes.Buffer)
io.CopyN(buf, reader, 32*1024)
for n := 0; n < b.N; n++ {
franco.DetectOne(buf.String())
}
}
}
func TestCL(t *testing.T) {
for _, c := range tests {
reader := NewReader(c.fn)
buf := new(bytes.Buffer)
for _, size := range []int64{8192, 32768} {
io.CopyN(buf, reader, size)
s := buf.String()
code, err := cld2_nlpt.DetectLanguage(len(s), s, "code")
if err != nil {
t.Error(err)
}
if !stringInSlice(string(code), c.lang) {
t.Errorf("%s: got %s, want one of %+v", c.fn, string(code), c.lang)
}
}
}
}
func BenchmarkCL8k(b *testing.B) {
for _, t := range tests {
reader := NewReader(t.fn)
buf := new(bytes.Buffer)
io.CopyN(buf, reader, 8*1024)
s := buf.String()
for n := 0; n < b.N; n++ {
cld2_nlpt.DetectLanguage(len(s), s, "code")
}
}
}
func BenchmarkCL32k(b *testing.B) {
for _, t := range tests {
reader := NewReader(t.fn)
buf := new(bytes.Buffer)
io.CopyN(buf, reader, 32*1024)
s := buf.String()
for n := 0; n < b.N; n++ {
cld2_nlpt.DetectLanguage(len(s), s, "code")
}
}
}