color-valid-rgb.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-color/parsing/color-valid-rgb.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<title>CSS Color Level 4: Parsing and serialization of colors using valid RGB notation</title>

<link rel="help" href="https://drafts.csswg.org/css-color-4/#rgb-functions">

<link rel="help" href="https://drafts.csswg.org/css-color-4/#resolving-sRGB-values">

<link rel="help" href="https://drafts.csswg.org/css-color-4/#serializing-sRGB-values">

<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("color", "rgb(none none none)", "rgb(0, 0, 0)");

test_valid_value("color", "rgb(none none none / none)", "rgba(0, 0, 0, 0)");

test_valid_value("color", "rgb(128 none none)", "rgb(128, 0, 0)");

test_valid_value("color", "rgb(128 none none / none)", "rgba(128, 0, 0, 0)");

test_valid_value("color", "rgb(none none none / .5)", "rgba(0, 0, 0, 0.5)");

test_valid_value("color", "rgb(20% none none)", "rgb(51, 0, 0)");

test_valid_value("color", "rgb(20% none none / none)", "rgba(51, 0, 0, 0)");

test_valid_value("color", "rgb(none none none / 50%)", "rgba(0, 0, 0, 0.5)");

test_valid_value("color", "rgba(none none none)", "rgb(0, 0, 0)");

test_valid_value("color", "rgba(none none none / none)", "rgba(0, 0, 0, 0)");

test_valid_value("color", "rgba(128 none none)", "rgb(128, 0, 0)");

test_valid_value("color", "rgba(128 none none / none)", "rgba(128, 0, 0, 0)");

test_valid_value("color", "rgba(none none none / .5)", "rgba(0, 0, 0, 0.5)");

test_valid_value("color", "rgba(20% none none)", "rgb(51, 0, 0)");

test_valid_value("color", "rgba(20% none none / none)", "rgba(51, 0, 0, 0)");

test_valid_value("color", "rgba(none none none / 50%)", "rgba(0, 0, 0, 0.5)");

test_valid_value("color", "rgb(-2 3 4)", "rgb(0, 3, 4)");

test_valid_value("color", "rgb(-20% 20% 40%)", "rgb(0, 51, 102)");

test_valid_value("color", "rgb(257 30 40)", "rgb(255, 30, 40)");

test_valid_value("color", "rgb(250% 20% 40%)", "rgb(255, 51, 102)");

test_valid_value("color", "rgba(-2 3 4)", "rgb(0, 3, 4)");

test_valid_value("color", "rgba(-20% 20% 40%)", "rgb(0, 51, 102)");

test_valid_value("color", "rgba(257 30 40)", "rgb(255, 30, 40)");

test_valid_value("color", "rgba(250% 20% 40%)", "rgb(255, 51, 102)");

test_valid_value("color", "rgba(-2 3 4 / .5)", "rgba(0, 3, 4, 0.5)");

test_valid_value("color", "rgba(-20% 20% 40% / 50%)", "rgba(0, 51, 102, 0.5)");

test_valid_value("color", "rgba(257 30 40 / 50%)", "rgba(255, 30, 40, 0.5)");

test_valid_value("color", "rgba(250% 20% 40% / .5)", "rgba(255, 51, 102, 0.5)");

// Test with mixed components.

test_valid_value("color", "rgb(250% 51 40%)", "rgb(255, 51, 102)");

test_valid_value("color", "rgb(255 20% 102)", "rgb(255, 51, 102)");

// rgb are in the range [0, 255], alpha is in the range [0, 1].

// Values above or below these numbers should get resolved to the upper/lower bound.

test_valid_value("color", "rgb(500, 0, 0)", "rgb(255, 0, 0)");

test_valid_value("color", "rgb(-500, 64, 128)", "rgb(0, 64, 128)");

// calc(infinity) resolves to the upper bound while calc(-infinity) and calc(NaN) resolves the lower bound.

// See: https://github.com/w3c/csswg-drafts/issues/8629

test_valid_value("color", "rgb(calc(infinity), 0, 0)", "rgb(255, 0, 0)");

test_valid_value("color", "rgb(0, calc(infinity), 0)", "rgb(0, 255, 0)");

test_valid_value("color", "rgb(0, 0, calc(infinity))", "rgb(0, 0, 255)");

test_valid_value("color", "rgba(0, 0, 0, calc(infinity))", "rgb(0, 0, 0)");

test_valid_value("color", "rgb(calc(-infinity), 0, 0)", "rgb(0, 0, 0)");

test_valid_value("color", "rgb(0, calc(-infinity), 0)", "rgb(0, 0, 0)");

test_valid_value("color", "rgb(0, 0, calc(-infinity))", "rgb(0, 0, 0)");

test_valid_value("color", "rgba(0, 0, 0, calc(-infinity))", "rgba(0, 0, 0, 0)");

test_valid_value("color", "rgb(calc(NaN), 0, 0)", "rgb(0, 0, 0)");

test_valid_value("color", "rgb(0, calc(NaN), 0)", "rgb(0, 0, 0)");

test_valid_value("color", "rgb(0, 0, calc(NaN))", "rgb(0, 0, 0)");

test_valid_value("color", "rgba(0, 0, 0, calc(NaN))", "rgba(0, 0, 0, 0)");

test_valid_value("color", "rgb(calc(0 / 0), 0, 0)", "rgb(0, 0, 0)");

test_valid_value("color", "rgb(0, calc(0 / 0), 0)", "rgb(0, 0, 0)");

test_valid_value("color", "rgb(0, 0, calc(0 / 0))", "rgb(0, 0, 0)");

test_valid_value("color", "rgba(0, 0, 0, calc(0 / 0))", "rgba(0, 0, 0, 0)");

</script>

</body>

</html>