wpt/css/css-backgrounds/parsing/background-image-valid.html at master · web-platform-tests/wpt · GitHub

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Backgrounds and Borders Module Level 3: parsing background-image with valid values</title>
<link rel="author" title="Eric Willigers" href="mailto:ericwilligers@chromium.org">
<link rel="help" href="https://un5n798jx6qx6j0rmf2verhh.julianrbryant.com/css-backgrounds/#background-image">
<meta name="assert" content="background-image supports the full grammar '<bg-image>#'.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
</head>
<body>
<script>
test_valid_value("background-image", "none");

// Safari removes quotes.
test_valid_value("background-image", 'url("https://umn0mtkzgjkmem4kvumj8.julianrbryant.com/")', ['url("https://umn0mtkzgjkmem4kvumj8.julianrbryant.com/")', 'url(https://umn0mtkzgjkmem4kvumj8.julianrbryant.com/)']);
test_valid_value("background-image", 'none, url("https://umn0mtkzgjkmem4kvumj8.julianrbryant.com/")', ['none, url("https://umn0mtkzgjkmem4kvumj8.julianrbryant.com/")', 'none, url(https://umn0mtkzgjkmem4kvumj8.julianrbryant.com/)']);

test_valid_value("background-image", 'light-dark(url("a.png"), url("b.png"))');
test_valid_value("background-image", 'light-dark(linear-gradient(red), url("b.png"))');

test_valid_value(
    "background-image",
    "cross-fade(50% url(https://umn0mtkzgjkmem4kvumj8.julianrbryant.com), 50% url(https://umn0mtkzgjkmem4kvumj8.julianrbryant.com))", [
        "cross-fade(url(https://umn0mtkzgjkmem4kvumj8.julianrbryant.com) 50%, url(https://umn0mtkzgjkmem4kvumj8.julianrbryant.com) 50%)",
        'cross-fade(url("https://umn0mtkzgjkmem4kvumj8.julianrbryant.com") 50%, url("https://umn0mtkzgjkmem4kvumj8.julianrbryant.com") 50%)'
    ]);
test_valid_value(
    "background-image",
    "cross-fade(red 33%, white 33%, blue)");
test_valid_value(
    "background-image",
    "cross-fade(blue, linear-gradient(90deg, rgb(2, 0, 36) 0%, rgb(0, 212, 255) 100%))");
test_valid_value("background-image", "cross-fade( 1% red, green)", "cross-fade(red 1%, green)");
test_valid_value("background-image", "cross-fade(1% red , green)", "cross-fade(red 1%, green)");
test_valid_value("background-image", "cross-fade(1% red, green )", "cross-fade(red 1%, green)");
test_valid_value("background-image", "cross-fade(red 1%, cross-fade(red 2%, green))");
</script>
</body>
</html>