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restorable: Add TestDoubleResolve

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This commit is contained in:
Hajime Hoshi 2018-03-25 21:09:26 +09:00
parent 025fd00e6b
commit e2632e358e
1 changed files with 45 additions and 0 deletions
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45
internal/restorable/images_test.go
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@ -524,4 +524,49 @@ func TestDispose(t *testing.T) {
} }
} }
func TestDoubleResolve(t *testing.T) {
base0 := image.NewRGBA(image.Rect(0, 0, 2, 2))
img0 := newImageFromImage(base0)
base := image.NewRGBA(image.Rect(0, 0, 1, 1))
base.Pix[0] = 0xff
base.Pix[1] = 0x00
base.Pix[2] = 0x00
base.Pix[3] = 0xff
img1 := newImageFromImage(base)
img0.DrawImage(img1, 0, 0, 1, 1, nil, nil, opengl.CompositeModeCopy, graphics.FilterNearest)
img0.ReplacePixels([]uint8{0x00, 0xff, 0x00, 0xff}, 1, 1, 1, 1)
// Now img0 is stale.
if err := ResolveStaleImages(); err != nil {
t.Fatal(err)
}
img0.ReplacePixels([]uint8{0x00, 0x00, 0xff, 0xff}, 1, 0, 1, 1)
if err := ResolveStaleImages(); err != nil {
t.Fatal(err)
}
if err := Restore(); err != nil {
t.Fatal(err)
}
wantImg := image.NewRGBA(image.Rect(0, 0, 2, 2))
wantImg.Set(0, 0, color.RGBA{0xff, 0x00, 0x00, 0xff})
wantImg.Set(1, 0, color.RGBA{0x00, 0x00, 0xff, 0xff})
wantImg.Set(1, 1, color.RGBA{0x00, 0xff, 0x00, 0xff})
for j := 0; j < 2; j++ {
for i := 0; i < 2; i++ {
got, err := img0.At(i, j)
if err != nil {
t.Fatal(err)
}
want := wantImg.At(i, j).(color.RGBA)
if !sameColors(got, want, 1) {
t.Errorf("got: %v, want: %v", got, want)
}
}
}
}
// TODO: How about volatile/screen images? // TODO: How about volatile/screen images?