forked from disintegration/gift
/
utils_test.go
219 lines (206 loc) · 4.62 KB
/
utils_test.go
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package gift
import (
"image"
"image/color"
"runtime"
"testing"
)
func testParallelizeN(enabled bool, n, procs int) bool {
data := make([]bool, n)
runtime.GOMAXPROCS(procs)
parallelize(enabled, 0, n, func(start, end int) {
for i := start; i < end; i++ {
data[i] = true
}
})
for i := 0; i < n; i++ {
if data[i] != true {
return false
}
}
return true
}
func TestParallelize(t *testing.T) {
for _, e := range []bool{true, false} {
for _, n := range []int{1, 10, 100, 1000} {
for _, p := range []int{1, 2, 4, 8, 16, 100} {
if testParallelizeN(e, n, p) != true {
t.Errorf("failed testParallelizeN(%v, %d, %d)", e, n, p)
}
}
}
}
}
func TestTempImageCopy(t *testing.T) {
tmp1 := createTempImage(image.Rect(-1, -2, 1, 2))
if !tmp1.Bounds().Eq(image.Rect(-1, -2, 1, 2)) {
t.Error("unexpected temp image bounds")
}
tmp2 := createTempImage(image.Rect(-3, -4, 3, 4))
if !tmp2.Bounds().Eq(image.Rect(-3, -4, 3, 4)) {
t.Error("unexpected temp image bounds")
}
copyimage(tmp1, tmp2, nil)
}
func TestQSort(t *testing.T) {
testData := []struct {
a, b []float32
}{
{
[]float32{},
[]float32{},
},
{
[]float32{0.1},
[]float32{0.1},
},
{
[]float32{0.4, 0.2, 0.5, -0.5, 0.3, 0.0, 0.1},
[]float32{-0.5, 0.0, 0.1, 0.2, 0.3, 0.4, 0.5},
},
{
[]float32{-10, 10, -20, 20, -30, 30},
[]float32{-30, -20, -10, 10, 20, 30},
},
}
for _, d := range testData {
qsortf32(d.a)
for i := range d.a {
if d.a[i] != d.b[i] {
t.Errorf("qsort failed: %#v", d.a)
}
}
}
}
func TestDisk(t *testing.T) {
testData := []struct {
ksize int
k []float32
}{
{
-5,
[]float32{},
},
{
0,
[]float32{},
},
{
1,
[]float32{1},
},
{
2,
[]float32{1},
},
{
3,
[]float32{
0, 1, 0,
1, 1, 1,
0, 1, 0,
},
},
{
4,
[]float32{
0, 1, 0,
1, 1, 1,
0, 1, 0,
},
},
{
5,
[]float32{
0, 0, 1, 0, 0,
0, 1, 1, 1, 0,
1, 1, 1, 1, 1,
0, 1, 1, 1, 0,
0, 0, 1, 0, 0,
},
},
{
6,
[]float32{
0, 0, 1, 0, 0,
0, 1, 1, 1, 0,
1, 1, 1, 1, 1,
0, 1, 1, 1, 0,
0, 0, 1, 0, 0,
},
},
{
7,
[]float32{
0, 0, 0, 1, 0, 0, 0,
0, 1, 1, 1, 1, 1, 0,
0, 1, 1, 1, 1, 1, 0,
1, 1, 1, 1, 1, 1, 1,
0, 1, 1, 1, 1, 1, 0,
0, 1, 1, 1, 1, 1, 0,
0, 0, 0, 1, 0, 0, 0,
},
},
}
for _, d := range testData {
disk := genDisk(d.ksize)
for i := range disk {
if disk[i] != d.k[i] {
t.Errorf("gen disk failed: %d %#v", d.ksize, disk)
}
}
}
}
func TestIsOpaque(t *testing.T) {
type opqt struct {
img image.Image
opaque bool
}
var testData []opqt
testData = append(testData, opqt{image.NewNRGBA(image.Rect(0, 0, 1, 1)), false})
testData = append(testData, opqt{image.NewNRGBA64(image.Rect(0, 0, 1, 1)), false})
testData = append(testData, opqt{image.NewRGBA(image.Rect(0, 0, 1, 1)), false})
testData = append(testData, opqt{image.NewRGBA64(image.Rect(0, 0, 1, 1)), false})
testData = append(testData, opqt{image.NewGray(image.Rect(0, 0, 1, 1)), true})
testData = append(testData, opqt{image.NewGray16(image.Rect(0, 0, 1, 1)), true})
testData = append(testData, opqt{image.NewYCbCr(image.Rect(0, 0, 1, 1), image.YCbCrSubsampleRatio444), true})
testData = append(testData, opqt{image.NewAlpha(image.Rect(0, 0, 1, 1)), false})
img1 := image.NewNRGBA(image.Rect(0, 0, 1, 1))
img1.Set(0, 0, color.NRGBA{0x00, 0x00, 0x00, 0xff})
testData = append(testData, opqt{img1, true})
img2 := image.NewNRGBA64(image.Rect(0, 0, 1, 1))
img2.Set(0, 0, color.NRGBA{0x00, 0x00, 0x00, 0xff})
testData = append(testData, opqt{img2, true})
img3 := image.NewRGBA(image.Rect(0, 0, 1, 1))
img3.Set(0, 0, color.NRGBA{0x00, 0x00, 0x00, 0xff})
testData = append(testData, opqt{img3, true})
img4 := image.NewRGBA64(image.Rect(0, 0, 1, 1))
img4.Set(0, 0, color.NRGBA{0x00, 0x00, 0x00, 0xff})
testData = append(testData, opqt{img4, true})
imgp1 := image.NewPaletted(image.Rect(0, 0, 1, 1), []color.Color{color.NRGBA{0x00, 0x00, 0x00, 0xff}})
imgp1.SetColorIndex(0, 0, 0)
testData = append(testData, opqt{imgp1, true})
imgp2 := image.NewPaletted(image.Rect(0, 0, 1, 1), []color.Color{color.NRGBA{0x00, 0x00, 0x00, 0xfe}})
imgp2.SetColorIndex(0, 0, 0)
testData = append(testData, opqt{imgp2, false})
for _, d := range testData {
isop := isOpaque(d.img)
if isop != d.opaque {
t.Errorf("isOpaque failed %#v, %v", d.img, isop)
}
}
}
func checkBoundsAndPix(b1, b2 image.Rectangle, pix1, pix2 []uint8) bool {
if !b1.Eq(b2) {
return false
}
if len(pix1) != len(pix2) {
return false
}
for i := 0; i < len(pix1); i++ {
if pix1[i] != pix2[i] {
return false
}
}
return true
}