Blitz - WPT: timing-functions-syntax-invalid.html

wpt / css / css-easing / timing-functions-syntax-invalid.html

Data from commit:
a50cb89 wpt: run reference-named files which are themselves tests (#836) (2026-09-03)

Subtest	Status	Message
e.style['animation-timing-function'] = "auto" should not set the property value	PASS
e.style['animation-timing-function'] = "ease-in ease-out" should not set the property value	PASS
e.style['animation-timing-function'] = "cubic-bezier(1, 2, 3)" should not set the property value	PASS
e.style['animation-timing-function'] = "cubic-bezier(1, 2, 3, infinite)" should not set the property value	PASS
e.style['animation-timing-function'] = "cubic-bezier(1, 2, 3, 4, 5)" should not set the property value	PASS
e.style['animation-timing-function'] = "cubic-bezier(-0.1, 0.1, 0.5, 0.9)" should not set the property value	PASS
e.style['animation-timing-function'] = "cubic-bezier(0.5, 0.1, 1.1, 0.9)" should not set the property value	PASS
e.style['animation-timing-function'] = "initial, cubic-bezier(0, -2, 1, 3)" should not set the property value	PASS
e.style['animation-timing-function'] = "cubic-bezier(0, -2, 1, 3), initial" should not set the property value	PASS
e.style['animation-timing-function'] = "steps(1, jump-none)" should not set the property value	PASS
e.style['animation-timing-function'] = "steps(-100, jump-none)" should not set the property value	PASS
e.style['animation-timing-function'] = "steps(0, start)" should not set the property value	PASS
e.style['animation-timing-function'] = "steps(-100, start)" should not set the property value	PASS

Enable JavaScript in test iframe

/css/css-easing/timing-functions-syntax-invalid.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Easing: parsing animation-timing-function with invalid values</title>
<link rel="help" href="https://drafts.csswg.org/css-easing/#timing-functions">
<meta name="assert" content="animation-timing-function supports only the grammar '<timing-function> #'.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
</head>
<body>
<script>
test_invalid_value("animation-timing-function", "auto");
test_invalid_value("animation-timing-function", "ease-in ease-out");
test_invalid_value("animation-timing-function", "cubic-bezier(1, 2, 3)");
test_invalid_value("animation-timing-function", "cubic-bezier(1, 2, 3, infinite)");
test_invalid_value("animation-timing-function", "cubic-bezier(1, 2, 3, 4, 5)");
test_invalid_value("animation-timing-function", "cubic-bezier(-0.1, 0.1, 0.5, 0.9)");
test_invalid_value("animation-timing-function", "cubic-bezier(0.5, 0.1, 1.1, 0.9)");
test_invalid_value("animation-timing-function", "initial, cubic-bezier(0, -2, 1, 3)");
test_invalid_value("animation-timing-function", "cubic-bezier(0, -2, 1, 3), initial");
test_invalid_value("animation-timing-function", "steps(1, jump-none)");
test_invalid_value("animation-timing-function", "steps(-100, jump-none)");
test_invalid_value("animation-timing-function", "steps(0, start)");
test_invalid_value("animation-timing-function", "steps(-100, start)");
</script>
</body>
</html>