136 lines
2.5 KiB
Go
136 lines
2.5 KiB
Go
package images
|
|
|
|
import (
|
|
"errors"
|
|
"image"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
const (
|
|
path = "../_assets/tests/"
|
|
)
|
|
|
|
var (
|
|
testJpegBytes = []byte{0xff, 0xd8, 0xff, 0xdb, 0x00, 0x84, 0x00, 0x50, 0x37, 0x3c, 0x46, 0x3c, 0x32, 0x50}
|
|
testPngBytes = []byte{0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48}
|
|
testGifBytes = []byte{0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x00, 0x01, 0x00, 0x01, 0x84, 0x1f, 0x00, 0xff}
|
|
testWebpBytes = []byte{0x52, 0x49, 0x46, 0x46, 0x90, 0x49, 0x00, 0x00, 0x57, 0x45, 0x42, 0x50, 0x56, 0x50}
|
|
testAacBytes = []byte{0xff, 0xf1, 0x50, 0x80, 0x1c, 0x3f, 0xfc, 0xda, 0x00, 0x4c, 0x61, 0x76, 0x63, 0x35}
|
|
)
|
|
|
|
func TestDecode(t *testing.T) {
|
|
|
|
cs := []struct {
|
|
Filepath string
|
|
Error bool
|
|
Nil bool
|
|
Bounds image.Rectangle
|
|
}{
|
|
{
|
|
"elephant.jpg",
|
|
false,
|
|
false,
|
|
image.Rectangle{
|
|
Min: image.Point{X: 0, Y: 0},
|
|
Max: image.Point{X: 80, Y: 80},
|
|
},
|
|
},
|
|
{
|
|
"status.png",
|
|
false,
|
|
false,
|
|
image.Rectangle{
|
|
Min: image.Point{X: 0, Y: 0},
|
|
Max: image.Point{X: 256, Y: 256},
|
|
},
|
|
},
|
|
{
|
|
"spin.gif",
|
|
false,
|
|
false,
|
|
image.Rectangle{
|
|
Min: image.Point{X: 0, Y: 0},
|
|
Max: image.Point{X: 256, Y: 256},
|
|
},
|
|
},
|
|
{
|
|
"rose.webp",
|
|
false,
|
|
false,
|
|
image.Rectangle{
|
|
Min: image.Point{X: 0, Y: 0},
|
|
Max: image.Point{X: 400, Y: 301},
|
|
},
|
|
},
|
|
{
|
|
"test.aac",
|
|
true,
|
|
true,
|
|
image.Rectangle{},
|
|
},
|
|
}
|
|
|
|
for _, c := range cs {
|
|
img, err := Decode(path + c.Filepath)
|
|
|
|
if c.Error {
|
|
require.Error(t, err)
|
|
} else {
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
if c.Nil {
|
|
require.Nil(t, img)
|
|
continue
|
|
} else {
|
|
require.NotNil(t, img)
|
|
}
|
|
|
|
require.Exactly(t, c.Bounds, img.Bounds())
|
|
}
|
|
}
|
|
|
|
func TestGetType(t *testing.T) {
|
|
cs := []struct {
|
|
Buf []byte
|
|
Value ImageType
|
|
}{
|
|
{testJpegBytes, JPEG},
|
|
{testPngBytes, PNG},
|
|
{testGifBytes, GIF},
|
|
{testWebpBytes, WEBP},
|
|
{testAacBytes, UNKNOWN},
|
|
}
|
|
|
|
for _, c := range cs {
|
|
require.Exactly(t, c.Value, GetType(c.Buf))
|
|
}
|
|
}
|
|
|
|
func TestGetMimeType(t *testing.T) {
|
|
cs := []struct {
|
|
Buf []byte
|
|
Value string
|
|
Error error
|
|
}{
|
|
{testJpegBytes, "jpeg", nil},
|
|
{testPngBytes, "png", nil},
|
|
{testGifBytes, "gif", nil},
|
|
{testWebpBytes, "webp", nil},
|
|
{testAacBytes, "", errors.New("image format not supported")},
|
|
}
|
|
|
|
for _, c := range cs {
|
|
mt, err := GetMimeType(c.Buf)
|
|
if c.Error == nil {
|
|
require.NoError(t, err)
|
|
} else {
|
|
require.EqualError(t, err, c.Error.Error())
|
|
}
|
|
|
|
require.Exactly(t, c.Value, mt)
|
|
}
|
|
}
|