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watermark_test.go
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/
watermark_test.go
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package watermark
import (
"fmt"
"io/ioutil"
"path/filepath"
"testing"
)
var (
fontPath = "wqy-zenhei.ttf"
opt = &Options{
WatermarkHPercent: 0.1,
WatermarkWPercent: 0.9,
WatermarkHorizontalOffset: 20,
WatermarkVerticalOffset: 20,
WatermarkTextHorizontalOffset: 20,
WatermarkTextVerticalOffset: 20,
WatermarkOpacity: 128,
// WatermarkTextColor *image.Uniform
// WatermarkBackgroundColor *image.Uniform
// JpegOptions *jpeg.Options
AutoOrientation: true,
RowSpacing: 1.5,
DPI: 100,
}
texts = [][]string{{
"Копия документа изготовлена",
"в электронном виде и заверена 12:44 12.12.2021",
"Иванов Иван Иваныч - 789056634345",
},
{
"Копия документа изготовлена",
},
{
"Копия документа изготовлена",
"в электронном виде и заверена 12:44 12.12.2021",
"Иванов Иван Иваныч - 789056634345",
"Копия документа изготовлена",
"в электронном виде и заверена 12:44 12.12.2021",
"Иванов Иван Иваныч - 789056634345",
},
{
"",
},
{},
}
)
const (
TestFileDir = "testfiles/dif-size"
ResultDir = "testfiles/results"
)
func TestWatermark(t *testing.T) {
t.Log("start testing")
wm, err := New(fontPath, opt)
if err != nil {
t.Error(err)
}
fileList, _ := ioutil.ReadDir(TestFileDir)
for _, file := range fileList {
path := filepath.Join(TestFileDir, file.Name())
fmt.Println("path: ", path)
targetImage, _ := ioutil.ReadFile(path)
for i, text := range texts {
resultImage, err := wm.AddFromText(targetImage, text)
if err != nil {
fmt.Printf("Watermark error: %v\n", err)
}
name := fmt.Sprintf("%s_%v.jpg", file.Name(), i)
resultPath := filepath.Join(ResultDir, name)
ioutil.WriteFile(resultPath, resultImage, 0644)
}
}
}