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https://github.com/esimov/caire.git
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30 lines
600 B
Go
30 lines
600 B
Go
package caire
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import (
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"image"
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"image/color"
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"testing"
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)
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func TestImage_GrayscaleMode(t *testing.T) {
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img := image.NewRGBA(image.Rect(0, 0, imgWidth, imgHeight))
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for i := 0; i < img.Bounds().Dx(); i++ {
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for j := 0; j < img.Bounds().Dy(); j++ {
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img.Set(i, j, color.RGBA{177, 177, 177, 255})
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}
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}
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for i := 0; i < img.Bounds().Dx(); i++ {
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for j := 0; j < img.Bounds().Dy(); j++ {
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r, g, b, _ := img.At(i, j).RGBA()
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r = r >> 8
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g = g >> 8
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b = b >> 8
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if r != g || r != b || g != b {
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t.Errorf("R, G, B value expected to be equal. Got %v, %v, %v", r, g, b)
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}
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}
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}
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}
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