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all_test.go
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all_test.go
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package gosseract
import (
"encoding/xml"
"image"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
. "github.com/otiai10/mint"
)
func TestMain(m *testing.M) {
beforeTest()
code := m.Run()
os.Exit(code)
}
func beforeTest() {
if strings.HasPrefix(Version(), "4.0") {
os.Setenv("TESS_LSTM_DISABLED", "1")
}
switch os.Getenv("TESTCASE") {
case "archlinux", "centos", "debian", "fedora", "mingw":
os.Setenv("TESS_BOX_DISABLED", "1")
}
}
func TestVersion(t *testing.T) {
version := Version()
Expect(t, version).Match("[0-9]{1}.[0-9]{1,2}(.[0-9a-z_-]*)?")
}
func TestClearPersistentCache(t *testing.T) {
client := NewClient()
defer client.Close()
client.init()
ClearPersistentCache()
}
func TestNewClient(t *testing.T) {
client := NewClient()
defer client.Close()
Expect(t, client).TypeOf("*gosseract.Client")
}
func TestDoubleClose(t *testing.T) {
client := NewClient()
client.Close()
client.Close()
}
func TestClient_SetTessdataPrefix(t *testing.T) {
client := NewClient()
defer client.Close()
cwd, err := os.Getwd()
Expect(t, err).ToBe(nil)
testModelDir := filepath.Join(cwd, "test-model", "tessdata")
err = os.MkdirAll(testModelDir, 0770)
Expect(t, err).ToBe(nil)
defer os.RemoveAll(filepath.Dir(testModelDir))
src, err := os.Open(filepath.Join(getDataPath(), "eng.traineddata"))
Expect(t, err).ToBe(nil)
defer src.Close()
dst, err := os.Create(filepath.Join(testModelDir, "eng.traineddata"))
Expect(t, err).ToBe(nil)
_, err = io.Copy(dst, src)
Expect(t, err).ToBe(nil)
dst.Close()
client.Trim = true
client.SetImage("./test/data/001-helloworld.png")
client.SetLanguage("eng")
client.SetTessdataPrefix(testModelDir)
text, err := client.Text()
Expect(t, err).ToBe(nil)
Expect(t, text).ToBe("Hello, World!")
}
func TestClient_Version(t *testing.T) {
client := NewClient()
defer client.Close()
version := client.Version()
Expect(t, version).Match("[0-9]{1}.[0-9]{1,2}(.[0-9a-z_-]*)?")
}
func TestClient_SetImage(t *testing.T) {
client := NewClient()
defer client.Close()
client.Trim = true
client.SetImage("./test/data/001-helloworld.png")
client.SetPageSegMode(PSM_SINGLE_BLOCK)
text, err := client.Text()
if client.pixImage == nil {
t.Errorf("could not set image")
}
Expect(t, err).ToBe(nil)
Expect(t, text).ToBe("Hello, World!")
err = client.SetImage("./test/data/001-helloworld.png")
Expect(t, err).ToBe(nil)
err = client.SetImage("")
Expect(t, err).Not().ToBe(nil)
err = client.SetImage("somewhere/fake/fakeimage.png")
Expect(t, err).Not().ToBe(nil)
_, err = client.Text()
Expect(t, err).ToBe(nil)
Because(t, "api must be initialized beforehand", func(t *testing.T) {
client := &Client{}
err := client.SetImage("./test/data/001-helloworld.png")
Expect(t, err).Not().ToBe(nil)
})
}
func TestClient_SetImageFromBytes(t *testing.T) {
client := NewClient()
defer client.Close()
content, err := ioutil.ReadFile("./test/data/001-helloworld.png")
if err != nil {
t.Fatalf("could not read test file")
}
client.Trim = true
client.SetImageFromBytes(content)
client.SetPageSegMode(PSM_SINGLE_BLOCK)
text, err := client.Text()
if client.pixImage == nil {
t.Errorf("could not set image")
}
Expect(t, err).ToBe(nil)
Expect(t, text).ToBe("Hello, World!")
err = client.SetImageFromBytes(content)
Expect(t, err).ToBe(nil)
err = client.SetImageFromBytes(nil)
Expect(t, err).Not().ToBe(nil)
Because(t, "api must be initialized beforehand", func(t *testing.T) {
client := &Client{}
err := client.SetImageFromBytes(content)
Expect(t, err).Not().ToBe(nil)
})
}
func TestClient_SetWhitelist(t *testing.T) {
if os.Getenv("TESS_LSTM_DISABLED") == "1" {
t.Skip("Whitelist with LSTM is not working for now. Please check https://github.com/tesseract-ocr/tesseract/issues/751")
}
client := NewClient()
defer client.Close()
client.Trim = true
client.SetImage("./test/data/001-helloworld.png")
client.Languages = []string{"eng"}
client.SetWhitelist("HeloWrd,")
text, err := client.Text()
Expect(t, err).ToBe(nil)
// Expect(t, text).ToBe("Hello, Worldl")
Expect(t, text).Match("Hello, ?Worldl?")
}
func TestClient_SetBlacklist(t *testing.T) {
if os.Getenv("TESS_LSTM_DISABLED") == "1" {
t.Skip("Blacklist with LSTM is not working for now. Please check https://github.com/tesseract-ocr/tesseract/issues/751")
}
client := NewClient()
defer client.Close()
client.Trim = true
err := client.SetImage("./test/data/001-helloworld.png")
Expect(t, err).ToBe(nil)
client.Languages = []string{"eng"}
err = client.SetBlacklist("l")
Expect(t, err).ToBe(nil)
text, err := client.Text()
Expect(t, err).ToBe(nil)
Expect(t, text).Match("He(110|tto|o), Wor(I|t)?d!")
}
func TestClient_SetLanguage(t *testing.T) {
client := NewClient()
defer client.Close()
err := client.SetLanguage("undefined-language")
Expect(t, err).ToBe(nil)
err = client.SetLanguage()
Expect(t, err).Not().ToBe(nil)
client.SetImage("./test/data/001-helloworld.png")
_, err = client.Text()
Expect(t, err).Not().ToBe(nil)
if os.Getenv("GOSSERACT_CPPSTDERR_NOT_CAPTURED") != "1" {
Expect(t, err).Match("Failed loading language 'undefined-language'")
}
}
func TestClient_ConfigFilePath(t *testing.T) {
if os.Getenv("TESS_LSTM_DISABLED") == "1" {
t.Skip("Whitelist with LSTM is not working for now. Please check https://github.com/tesseract-ocr/tesseract/issues/751")
}
client := NewClient()
defer client.Close()
err := client.SetConfigFile("./test/config/01.config")
Expect(t, err).ToBe(nil)
client.SetImage("./test/data/001-helloworld.png")
text, err := client.Text()
Expect(t, err).ToBe(nil)
Expect(t, text).Match("H *W *")
When(t, "the config file is not found", func(t *testing.T) {
err := client.SetConfigFile("./test/config/not-existing")
Expect(t, err).Not().ToBe(nil)
})
When(t, "the config file path is a directory", func(t *testing.T) {
err := client.SetConfigFile("./test/config/02.config")
Expect(t, err).Not().ToBe(nil)
})
}
func TestClientBoundingBox(t *testing.T) {
if os.Getenv("TESS_BOX_DISABLED") == "1" {
t.Skip()
}
client := NewClient()
defer client.Close()
client.SetImage("./test/data/001-helloworld.png")
client.SetWhitelist("Hello,World!")
boxes, err := client.GetBoundingBoxes(RIL_WORD)
Expect(t, err).ToBe(nil)
Because(t, "api must be initialized beforehand", func(t *testing.T) {
client := &Client{}
_, err := client.GetBoundingBoxes(RIL_WORD)
Expect(t, err).Not().ToBe(nil)
})
words := []string{"Hello,World!"}
coords := []image.Rectangle{
image.Rect(74, 64, 1099, 190),
}
if os.Getenv("TESS_LSTM_DISABLED") == "1" {
t.Skip()
}
for i, box := range boxes {
Expect(t, box.Word).ToBe(words[i])
Expect(t, box.Box).ToBe(coords[i])
}
}
func TestClient_HTML(t *testing.T) {
if os.Getenv("TESS_BOX_DISABLED") == "1" {
t.Skip()
}
client := NewClient()
defer client.Close()
client.SetImage("./test/data/001-helloworld.png")
client.SetWhitelist("Hello,World!")
out, err := client.HOCRText()
Expect(t, err).ToBe(nil)
page := new(Page)
err = xml.Unmarshal([]byte(out), page)
Expect(t, err).ToBe(nil)
Expect(t, len(page.Content.Par.Lines)).ToBe(1)
if os.Getenv("TESS_LSTM_DISABLED") != "1" {
Expect(t, len(page.Content.Par.Lines[0].Words)).ToBe(1)
Expect(t, page.Content.Par.Lines[0].Words[0].Characters).ToBe("Hello,World!")
}
When(t, "only invalid languages are given", func(t *testing.T) {
client := NewClient()
defer client.Close()
client.SetLanguage("foo")
client.SetImage("./test/data/001-helloworld.png")
_, err := client.HOCRText()
Expect(t, err).Not().ToBe(nil)
})
Because(t, "unknown key is validated when `init` is called", func(t *testing.T) {
client := NewClient()
defer client.Close()
err := client.SetVariable("foobar", "hoge")
Expect(t, err).ToBe(nil)
client.SetImage("./test/data/001-helloworld.png")
_, err = client.Text()
Expect(t, err).Not().ToBe(nil)
})
}
func TestGetAvailableLangs(t *testing.T) {
t.Skip("TODO")
// langs, err := GetAvailableLanguages()
// Expect(t, err).ToBe(nil)
// Expect(t, len(langs)).ToBe(1) // eng only
}