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Add reftests for the image(<color>) CSS function #59941

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Add reftests for the image(<color>) CSS function #59941

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17 changes: 17 additions & 0 deletions css/css-images/image-color-basic-ref.html
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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS reftest reference: image(&lt;color&gt;) renders as a solid color</title>
<style>
div {
width: 100px;
height: 100px;
display: inline-block;
margin: 4px;
background-color: green;
}
</style>
<p>Test passes if there are four green squares below.</p>
<div class="a"></div>
<div class="b"></div>
<div class="c"></div>
<div class="d"></div>
24 changes: 24 additions & 0 deletions css/css-images/image-color-basic.html
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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Images Module Level 4: image(&lt;color&gt;) renders as a solid color</title>
<link rel="author" title="Jason Leo" href="mailto:cgqaq@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-images-4/#image-notation">
<link rel="match" href="image-color-basic-ref.html">
<style>
div {
width: 100px;
height: 100px;
display: inline-block;
margin: 4px;
background-color: red;
}
.opaque { background-image: image(green); }
.rgb-syntax { background-image: image(rgb(0 128 0)); }
.currentcolor { color: green; background-image: image(currentcolor); }
.transparent { background: image(transparent) green; }
</style>
<p>Test passes if there are four green squares below.</p>
<div class="opaque"></div>
<div class="rgb-syntax"></div>
<div class="currentcolor"></div>
<div class="transparent"></div>
14 changes: 14 additions & 0 deletions css/css-images/image-color-cross-fade-ref.html
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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS reftest reference: image(&lt;color&gt;) inside cross-fade()</title>
<style>
div {
width: 100px;
height: 100px;
margin: 4px;
background-color: green;
}
</style>
<p>Test passes if there are two solid green squares.</p>
<div></div>
<div></div>
22 changes: 22 additions & 0 deletions css/css-images/image-color-cross-fade.html
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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Images Module Level 4: image(&lt;color&gt;) inside cross-fade()</title>
<link rel="author" title="Jason Leo" href="mailto:cgqaq@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-images-4/#image-notation">
<link rel="help" href="https://drafts.csswg.org/css-images-4/#cross-fade-function">
<link rel="match" href="image-color-cross-fade-ref.html">
<style>
div {
width: 100px;
height: 100px;
margin: 4px;
}
/* cross-fade() of two image(<color>) operands should match a cross-fade()
of the bare colors: the spec treats a <color> operand as a solid-color
image, so image(<color>) and <color> are interchangeable here. */
.both-images { background-image: cross-fade(image(green), image(green)); }
.one-image { background-image: cross-fade(image(green), green); }
</style>
<p>Test passes if there are two solid green squares.</p>
<div class="both-images"></div>
<div class="one-image"></div>
15 changes: 15 additions & 0 deletions css/css-images/image-color-layered-ref.html
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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS reftest reference: image(&lt;color&gt;) as a background-image layer</title>
<style>
div {
width: 100px;
height: 100px;
display: inline-block;
margin: 4px;
background-color: green;
}
</style>
<p>Test passes if there are two green squares below.</p>
<div class="a"></div>
<div class="b"></div>
27 changes: 27 additions & 0 deletions css/css-images/image-color-layered.html
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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Images Module Level 4: image(&lt;color&gt;) as a background-image layer</title>
<link rel="author" title="Jason Leo" href="mailto:cgqaq@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-images-4/#image-notation">
<link rel="match" href="image-color-layered-ref.html">
<style>
div {
width: 100px;
height: 100px;
display: inline-block;
margin: 4px;
background-color: red;
}
/* The first listed background-image paints on top, so an opaque
image(green) fully covers the lower image(red) layer. */
.opaque-top {
background-image: image(green), image(red);
}
/* image(transparent) on top lets the lower image(green) layer show through. */
.transparent-top {
background-image: image(transparent), image(green);
}
</style>
<p>Test passes if there are two green squares below.</p>
<div class="opaque-top"></div>
<div class="transparent-top"></div>
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