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magick_test.go
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magick_test.go
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package magick
import (
"github.com/bmizerany/assert"
"io/ioutil"
"log"
"os"
"testing"
)
func setupImage(t *testing.T) (image *MagickImage) {
filename := "test/heart_original.png"
image, error := NewFromFile(filename)
assert.T(t, error == nil)
assert.T(t, image != nil)
assert.T(t, image.Image != nil)
assert.T(t, image.ImageInfo != nil)
return
}
func TestImageFromFile(t *testing.T) {
filename := "test/heart_original.png"
image, error := NewFromFile(filename)
assert.T(t, error == nil)
assert.T(t, image != nil)
assert.T(t, image.Image != nil)
assert.T(t, image.ImageInfo != nil)
bad_filename := "test/heart_whatwhat.png"
image, error = NewFromFile(bad_filename)
assert.T(t, error != nil)
}
func TestImageFromBlob(t *testing.T) {
filename := "test/heart_original.png"
source, _ := ioutil.ReadFile(filename)
image, error := NewFromBlob(source, "png")
assert.T(t, error == nil)
assert.T(t, image != nil)
assert.T(t, image.Image != nil)
assert.T(t, image.ImageInfo != nil)
image, error = NewFromBlob([]byte{}, "png")
assert.T(t, error != nil)
assert.T(t, image == nil)
}
func TestBadDataFromBlob(t *testing.T) {
filename := "test/heart_original.png"
source, _ := ioutil.ReadFile(filename)
image, error := NewFromBlob(source, "")
assert.T(t, error != nil)
assert.T(t, image == nil)
image = nil
error = nil
image, error = NewFromBlob([]byte(""), "png")
assert.T(t, error != nil)
assert.T(t, image == nil)
image = nil
error = nil
image, error = NewFromBlob([]byte("blah"), "jpg")
assert.T(t, error != nil)
assert.T(t, image == nil)
image = nil
error = nil
image, error = NewFromBlob([]byte(" "), "image/jpg")
assert.T(t, error != nil)
assert.T(t, image == nil)
image = nil
error = nil
image, error = NewFromBlob([]byte(""), " ")
assert.T(t, error != nil)
assert.T(t, image == nil)
image = nil
error = nil
image, error = NewFromBlob([]byte(""), ":")
assert.T(t, error != nil)
assert.T(t, image == nil)
image = nil
error = nil
}
func TestPDFFromBlob(t *testing.T) {
filename := "test/heart_original.pdf"
source, _ := ioutil.ReadFile(filename)
image, error := NewFromBlob(source, "pdf")
assert.T(t, error == nil)
assert.T(t, image != nil)
assert.T(t, image.Image != nil)
assert.T(t, image.ImageInfo != nil)
}
func TestParseGeometry(t *testing.T) {
image := setupImage(t)
geometry, err := image.ParseGeometry("100x100>")
assert.T(t, err == nil)
assert.T(t, geometry != nil)
assert.Equal(t, 100, geometry.Width)
}
func TestResizeRatio(t *testing.T) {
image := setupImage(t)
ratio := image.ResizeRatio(300, 300)
assert.T(t, ratio > 0.27)
assert.T(t, ratio < 0.28)
}
func TestStrip(t *testing.T) {
image := setupImage(t)
err := image.Strip()
assert.T(t, err == nil)
}
func TestProgressive(t *testing.T) {
image := setupImage(t)
image.Progressive()
_, err := image.ToBlob("jpg")
assert.T(t, err == nil)
}
func TestDestroy(t *testing.T) {
image := setupImage(t)
assert.T(t, image.Destroy() == nil)
assert.T(t, image.Image == nil)
assert.T(t, image.ImageInfo == nil)
}
func TestResize(t *testing.T) {
image := setupImage(t)
err := image.Resize("100x100!")
assert.T(t, err == nil)
assert.Equal(t, 100, image.Width())
assert.Equal(t, 100, image.Height())
image = setupImage(t)
err = image.Resize("blurgh")
assert.T(t, err != nil)
}
func TestPDFResize(t *testing.T) {
filename := "test/heart_original.pdf"
source, _ := ioutil.ReadFile(filename)
image, err := NewFromBlob(source, "pdf")
assert.T(t, err == nil)
err = image.Resize("100x100!")
assert.T(t, err == nil)
assert.Equal(t, 100, image.Width())
assert.Equal(t, 100, image.Height())
if err == nil {
filename = "test/test_from_pdf.jpg"
log.Print(filename)
os.Remove(filename)
err = image.ToFile(filename)
assert.T(t, err == nil)
}
}
func TestCrop(t *testing.T) {
image := setupImage(t)
err := image.Crop("100x100!+10+10")
assert.T(t, err == nil)
assert.Equal(t, 100, image.Width())
assert.Equal(t, 100, image.Height())
image = setupImage(t)
err = image.Crop("blurgh")
assert.T(t, err != nil)
}
func TestShadow(t *testing.T) {
image := setupImage(t)
err := image.Shadow("#000", 75, 2, 0, 0)
assert.T(t, err == nil)
}
func TestFillBackgroundColor(t *testing.T) {
image := setupImage(t)
err := image.FillBackgroundColor("#CCC")
assert.T(t, err == nil)
}
func TestSeparateAlphaChannel(t *testing.T) {
image := setupImage(t)
err := image.SeparateAlphaChannel()
assert.T(t, err == nil)
assert.T(t, image != nil)
}
func TestNegateImage(t *testing.T) {
image := setupImage(t)
err := image.Negate()
assert.T(t, err == nil)
assert.T(t, image != nil)
}
func TestToBlob(t *testing.T) {
image := setupImage(t)
bytes, err := image.ToBlob("png")
assert.T(t, err == nil)
assert.T(t, bytes != nil)
assert.T(t, len(bytes) > 0)
assert.Equal(t, 437198, len(bytes))
}
func TestToFile(t *testing.T) {
image := setupImage(t)
filename := "test/test_out.png"
os.Remove(filename)
err := image.ToFile(filename)
assert.T(t, err == nil)
file, err := os.Open(filename)
assert.T(t, err == nil)
defer file.Close()
stat, err := file.Stat()
assert.T(t, stat != nil)
assert.Equal(t, (int64)(437198), stat.Size())
}
func TestType(t *testing.T) {
image := setupImage(t)
assert.Equal(t, "PNG", image.Type())
}
func TestWidth(t *testing.T) {
image := setupImage(t)
assert.Equal(t, 600, image.Width())
}
func TestHeight(t *testing.T) {
image := setupImage(t)
assert.Equal(t, 552, image.Height())
}
func TestSetProperty(t *testing.T) {
image := setupImage(t)
err := image.SetProperty("jpeg:sampling-factor", "4:4:4")
assert.T(t, err == nil)
factor := image.GetProperty("jpeg:sampling-factor")
assert.Equal(t, "4:4:4", factor)
}
func TestColorspace(t *testing.T) {
image := setupImage(t)
err := image.Colorspace(RGB)
assert.T(t, err == nil)
}
func TestSetImageType(t *testing.T) {
image := setupImage(t)
err := image.SetImageType(TrueColor)
assert.T(t, err == nil)
err = image.SetImageType(Grayscale)
assert.T(t, err == nil)
err = image.SetImageType(TrueColorMatte)
assert.T(t, err == nil)
err = image.SetImageType(GrayscaleMatte)
assert.T(t, err == nil)
}
func TestFullStack(t *testing.T) {
var err error
var filename string
var image *MagickImage
// resize
image = setupImage(t)
err = image.Resize("100x100")
assert.T(t, err == nil)
if err == nil {
filename = "test/test_resize.png"
log.Print(filename)
os.Remove(filename)
err = image.ToFile(filename)
assert.T(t, err == nil)
}
// crop
image = setupImage(t)
err = image.Crop("100x100+10+10")
assert.T(t, err == nil)
if err == nil {
filename = "test/test_crop.png"
log.Print(filename)
os.Remove(filename)
err = image.ToFile(filename)
assert.T(t, err == nil)
}
// shadow
image = setupImage(t)
err = image.Shadow("#000", 90, 10, 0, 0)
assert.T(t, err == nil)
if err == nil {
filename = "test/test_shadow.png"
log.Print(filename)
os.Remove(filename)
err = image.ToFile(filename)
assert.T(t, err == nil)
}
// fill
image = setupImage(t)
err = image.FillBackgroundColor("red")
assert.T(t, err == nil)
if err == nil {
filename = "test/test_fill.png"
log.Print(filename)
os.Remove(filename)
err = image.ToFile(filename)
assert.T(t, err == nil)
}
// combination
image = setupImage(t)
err = image.Resize("100x100>")
assert.T(t, err == nil)
err = image.Shadow("#000", 90, 10, 0, 0)
assert.T(t, err == nil)
err = image.FillBackgroundColor("#CCC")
assert.T(t, err == nil)
if err == nil {
filename = "test/test_combo.jpg"
os.Remove(filename)
err = image.ToFile(filename)
assert.T(t, err == nil)
}
// alpha mask
image = setupImage(t)
err = image.SeparateAlphaChannel()
assert.T(t, err == nil)
if err == nil {
filename = "test/test_alpha.jpg"
log.Print(filename)
os.Remove(filename)
err = image.ToFile(filename)
assert.T(t, err == nil)
}
// alpha mask + negate
image = setupImage(t)
err = image.SeparateAlphaChannel()
assert.T(t, err == nil)
err = image.Negate()
assert.T(t, err == nil)
if err == nil {
filename = "test/test_alpha_negative.jpg"
log.Print(filename)
os.Remove(filename)
err = image.ToFile(filename)
assert.T(t, err == nil)
}
}