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Integration: #588's test reads pixels with as_chunks (clippy)
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@@ -651,7 +651,7 @@ mod tests {
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assert!(out.pixel(30, 40)[3].abs_diff(64) <= 1, "half-opacity object inside a half-opacity group is quarter opaque");
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let cmy = renderer.render(&doc, &Cache::new(), &placements, 160, 120, Affine::IDENTITY, &RenderOptions { plate: Some(4), ..options.clone() });
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let k = renderer.render(&doc, &Cache::new(), &placements, 160, 120, Affine::IDENTITY, &RenderOptions { plate: Some(3), ..options });
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for ((out, cmy), k) in out.pixels.chunks_exact(4).zip(cmy.pixels.chunks_exact(4)).zip(k.pixels.chunks_exact(4)) {
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for ((out, cmy), k) in out.pixels.as_chunks::<4>().0.iter().zip(cmy.pixels.as_chunks::<4>().0).zip(k.pixels.as_chunks::<4>().0) {
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assert_eq!(cmy[3], k[3], "all ink passes have the same coverage");
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assert_eq!(out[3], cmy[3], "conversion preserves coverage");
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assert!(out[..3].iter().all(|v| *v <= out[3]), "output remains premultiplied");
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