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p4p_test.go
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/
p4p_test.go
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package p4p_test
import (
"image"
_ "image/jpeg"
_ "image/png"
"os"
"testing"
p4p "github.com/pic4pdf/lib-p4p"
)
func TestWriteFile(t *testing.T) {
g := p4p.NewGenerator(p4p.A4())
// Images by Renee French
imgFiles := []string{"gophers/gopher.png", "gophers/gopher1.jpg", "gophers/gopher2.png"}
for _, path := range imgFiles {
if err := g.AddImageFile(path, p4p.ImageOptions{
Mode: p4p.Fit,
}); err != nil {
t.Fatal(err)
}
}
for i, path := range imgFiles {
f, err := os.Open(path)
if err != nil {
t.Fatal(err)
}
defer f.Close()
img, _, err := image.Decode(f)
if err != nil {
t.Fatal(err)
}
if err := g.AddImage(img, p4p.ImageOptions{
Mode: p4p.Center,
Scale: []float64{0.5, 1, 1.5}[i],
}); err != nil {
t.Fatal(err)
}
}
{
_, _, _, _, x1, y1, x2, y2, crop := p4p.Render(p4p.A4(), p4p.Point, 316, 317, p4p.ImageOptions{
Mode: p4p.Fill,
})
if !crop {
t.Fatal("did not detect that image must be cropped")
}
if x1 != 45 || y1 != 0 || x2 != 270 || y2 != 317 {
t.Fatal("wrong crop coordinates, got:", x1, y1, x2, y2)
}
}
for _, path := range imgFiles {
if err := g.AddImageFile(path, p4p.ImageOptions{
Mode: p4p.Fill,
}); err != nil {
t.Fatal(err)
}
}
if err := g.WriteFile("test.pdf"); err != nil {
t.Fatal(err)
}
}