func (s *ResizeSuite) TestResizeImage(c *C) {
file, err := ioutil.ReadFile("test/exif_test_img.jpg")
c.Assert(err, IsNil)
for width, height := range sizes {
ctx := &fetch.CacheContext{
Width: width,
}
data := bytes.NewBuffer(file)
orig, _, err := fetch.GetRotatedImage(data)
c.Check(err, IsNil)
buf := new(bytes.Buffer)
jpeg.Encode(buf, orig, nil)
resized, err := fetch.Resize(buf, ctx)
c.Check(err, IsNil)
image, _, err := image.Decode(resized)
c.Check(err, IsNil)
c.Check(image.Bounds().Size().X, Equals, width)
c.Check(image.Bounds().Size().Y, Equals, height)
}
}
func processFile(src io.Reader, mime string, bucket string) (*Uploadable, error) {
if mime == "image/jpeg" || mime == "image/jpg" {
image, format, err := fetch.GetRotatedImage(src)
if err != nil {
return nil, err
}
if format != "jpeg" {
return nil, errors.New("You sent a bad JPEG file.")
}
width := image.Bounds().Size().X
height := image.Bounds().Size().Y
key := fileKey(bucket, width, height)
data := new(bytes.Buffer)
err = jpeg.Encode(data, image, nil)
if err != nil {
return nil, err
}
length := int64(data.Len())
return &Uploadable{data, key, length}, nil
} else {
raw, err := ioutil.ReadAll(src)
if err != nil {
return nil, err
}
data := bytes.NewReader(raw)
length := int64(data.Len())
image, _, err := image.Decode(data)
if err != nil {
return nil, err
}
width := image.Bounds().Size().X
height := image.Bounds().Size().Y
key := fileKey(bucket, width, height)
data.Seek(0, 0)
return &Uploadable{data, key, length}, nil
}
}
func (s *ResizeSuite) insertMockImage() (*fetch.CacheContext, error) {
file, err := ioutil.ReadFile("test/exif_test_img.jpg")
if err != nil {
return nil, err
}
data := bytes.NewBuffer(file)
image, _, err := fetch.GetRotatedImage(data)
if err != nil {
return nil, err
}
buf := new(bytes.Buffer)
jpeg.Encode(buf, image, nil)
// Push the file data into the mock datastore
storage.PutReader("test_bucket", "test_id", buf, int64(len(file)), "image/jpeg")
return &fetch.CacheContext{
ImageId: "test_id",
Bucket: "test_bucket",
}, err
}