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image_test.go
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image_test.go
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package images
import (
"testing"
"fmt"
)
func TestOpenAndResize(t *testing.T) {
img, err := Open("./testdata/test.jpg")
if img.Error != nil {
t.Errorf("Error %q", err.Error())
}
if img.Format != "jpeg" {
t.Errorf("Error Format, %q", img.Format)
}
if img.Width() != 457 || img.Height() != 343 {
t.Errorf("Error size, %q %q", fmt.Sprintf("%v", img.Width()), fmt.Sprintf("%v", img.Height()))
}
if img.Quality != 100 {
t.Errorf("Error default quality, %q", img.Quality)
}
img_small := img.Resize(100, 100)
img_small.Format = "jpeg"
if img_small.Error != nil {
t.Errorf("Error resize %q", img_small.Error.Error())
}
if img_small.Format != "jpeg" {
t.Errorf("Error resize Format, %q", img_small.Format)
}
if img_small.Width() != 100 || img_small.Height() != 100 {
t.Errorf("Error resize size, %q %q", fmt.Sprintf("%v", img_small.Width()), fmt.Sprintf("%v", img_small.Height()))
}
if img_small.Quality != 100 {
t.Errorf("Error resize default quality, %q", img_small.Quality)
}
err = img_small.Save("./testdata/test_save.jpg")
if err != nil {
t.Errorf("Error resize save, %q", err.Error())
}
img2, err := Open("./testdata/test_save.jpg")
if err != nil {
t.Errorf("Error resize open, %q", err.Error())
}
if img2.Format != "jpeg" {
t.Errorf("Error Format, %q", img.Format)
}
if img2.Width() != 100 || img2.Height() != 100 {
t.Errorf("Error resize open size, %q %q", fmt.Sprintf("%v", img2.Width()), fmt.Sprintf("%v", img2.Height()))
}
}
func TestSave(t *testing.T) {
img, _ := Open("./testdata/test.jpg")
if img.Error != nil || img.Format != "jpeg" || img.Width() != 457 || img.Height() != 343 || img.Quality != 100 {
t.Errorf("Error open image %q %q %q %q %q", img.Error, img.Format, img.Width(), img.Height(), img.Quality)
}
err := img.Save("./testdata/test_only_save.jpg")
if err != nil {
t.Errorf("Error save, %q", err.Error())
}
img2, err := Open("./testdata/test_only_save.jpg")
if err != nil {
t.Errorf("Error open save , %q", err.Error())
}
if img2.Format != "jpeg" {
t.Errorf("Error save Format, %q", img.Format)
}
if img2.Width() != 457 || img2.Height() != 343 {
t.Errorf("Error save size, %q %q", fmt.Sprintf("%v", img2.Width()), fmt.Sprintf("%v", img2.Height()))
}
}
func TestResizeCrop(t *testing.T) {
img, _ := Open("./testdata/test.jpg")
if img.Error != nil || img.Format != "jpeg" || img.Width() != 457 || img.Height() != 343 || img.Quality != 100 {
t.Errorf("Error open image %q %q %q %q %q", img.Error, img.Format, img.Width(), img.Height(), img.Quality)
}
img_crop := img.ResizeCrop(100, 100)
if img_crop.Error != nil {
t.Errorf("Error crop %q", img_crop.Error.Error())
}
if img_crop.Format != "jpeg" {
t.Errorf("Error crop Format, %q", img_crop.Format)
}
if img_crop.Width() != 100 || img_crop.Height() != 100 {
t.Errorf("Error crop size, %q %q", fmt.Sprintf("%v", img_crop.Width()), fmt.Sprintf("%v", img_crop.Height()))
}
if img_crop.Quality != 100 {
t.Errorf("Error crop default quality, %q", img_crop.Quality)
}
err := img_crop.Save("./testdata/test_crop_save.jpg")
if err != nil {
t.Errorf("Error crop save, %q", err.Error())
}
img2, err := Open("./testdata/test_crop_save.jpg")
if err != nil {
t.Errorf("Error crop open, %q", err.Error())
}
if img2.Format != "jpeg" {
t.Errorf("Error crop Format, %q", img.Format)
}
if img2.Width() != 100 || img2.Height() != 100 {
t.Errorf("Error crop open size, %q %q", fmt.Sprintf("%v", img2.Width()), fmt.Sprintf("%v", img2.Height()))
}
}