Blitz - WPT: mask-valid.sub.html

wpt / css / css-masking / parsing / mask-valid.sub.html

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

Subtest	Status	Message
e.style['mask'] = "none" should set the property value	PASS
e.style['mask'] = "linear-gradient(to left bottom, red, blue)" should set the property value	PASS
e.style['mask'] = "linear-gradient(to left bottom, red, blue) luminance" should set the property value	PASS
e.style['mask'] = "url(\"https://{{host}}/\")" should set the property value	PASS
e.style['mask'] = "linear-gradient(to left bottom, red, blue) 1px 2px" should set the property value	PASS
e.style['mask'] = "url(\"https://{{host}}/\") 1px 2px / contain" should set the property value	PASS
e.style['mask'] = "repeat-y" should set the property value	PASS
e.style['mask'] = "border-box" should set the property value	PASS
e.style['mask'] = "linear-gradient(to left bottom, red, blue) padding-box" should set the property value	PASS
e.style['mask'] = "content-box" should set the property value	PASS
e.style['mask'] = "url(\"https://{{host}}/\") fill-box" should set the property value	FAIL	assert_not_equals: property should be set got disallowed value ""
e.style['mask'] = "linear-gradient(to left bottom, red, blue) stroke-box" should set the property value	FAIL	assert_not_equals: property should be set got disallowed value ""
e.style['mask'] = "view-box" should set the property value	FAIL	assert_not_equals: property should be set got disallowed value ""
e.style['mask'] = "no-clip" should set the property value	FAIL	assert_not_equals: property should be set got disallowed value ""
e.style['mask'] = "url(\"https://{{host}}/\") add" should set the property value	PASS
e.style['mask'] = "subtract" should set the property value	PASS
e.style['mask'] = "url(\"https://{{host}}/\") intersect" should set the property value	PASS
e.style['mask'] = "linear-gradient(to left bottom, red, blue) exclude" should set the property value	PASS
e.style['mask'] = "alpha" should set the property value	PASS
e.style['mask'] = "url(\"https://{{host}}/\") alpha" should set the property value	PASS
e.style['mask'] = "border-box border-box" should set the property value	PASS
e.style['mask'] = "content-box content-box" should set the property value	PASS
e.style['mask'] = "border-box content-box" should set the property value	PASS
e.style['mask'] = "border-box no-clip" should set the property value	FAIL	assert_not_equals: property should be set got disallowed value ""
e.style['mask'] = "intersect no-clip space round 1px 2px / contain stroke-box linear-gradient(to left bottom, red, blue) luminance" should set the property value	FAIL	assert_not_equals: property should be set got disallowed value ""
e.style['mask'] = "intersect no-clip space round 1px 2px / contain view-box, stroke-box linear-gradient(to left bottom, red, blue) luminance" should set the property value	FAIL	assert_not_equals: property should be set got disallowed value ""
e.style['mask'] = "none alpha" should set the property value	PASS
e.style['mask'] = "none" should set mask-border-outset	FAIL	assert_equals: mask-border-outset should be canonical expected "0" but got ""
e.style['mask'] = "none" should set mask-border-repeat	FAIL	assert_equals: mask-border-repeat should be canonical expected "stretch" but got ""
e.style['mask'] = "none" should set mask-border-slice	FAIL	assert_equals: mask-border-slice should be canonical expected "0" but got ""
e.style['mask'] = "none" should set mask-border-source	FAIL	assert_equals: mask-border-source should be canonical expected "none" but got ""
e.style['mask'] = "none" should set mask-border-width	FAIL	assert_equals: mask-border-width should be canonical expected "auto" but got ""
e.style['mask'] = "none" should set mask-clip	PASS
e.style['mask'] = "none" should set mask-composite	PASS
e.style['mask'] = "none" should set mask-image	PASS
e.style['mask'] = "none" should set mask-mode	PASS
e.style['mask'] = "none" should set mask-origin	PASS
e.style['mask'] = "none" should set mask-position	PASS
e.style['mask'] = "none" should set mask-repeat	PASS
e.style['mask'] = "none" should set mask-size	PASS
e.style['mask'] = "none" should not set unrelated longhands	PASS
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-border-outset	FAIL	assert_equals: mask-border-outset should be canonical expected "0" but got ""
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-border-repeat	FAIL	assert_equals: mask-border-repeat should be canonical expected "stretch" but got ""
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-border-slice	FAIL	assert_equals: mask-border-slice should be canonical expected "0" but got ""
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-border-source	FAIL	assert_equals: mask-border-source should be canonical expected "none" but got ""
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-border-width	FAIL	assert_equals: mask-border-width should be canonical expected "auto" but got ""
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-clip	FAIL	assert_equals: mask-clip should be canonical expected "border-box, padding-box" but got "border-box"
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-composite	FAIL	assert_equals: mask-composite should be canonical expected "add, add" but got "add"
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-image	FAIL	assert_equals: mask-image should be canonical expected "none, linear-gradient(to left bottom, red, blue)" but got "none"
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-mode	FAIL	assert_equals: mask-mode should be canonical expected "match-source, match-source" but got "match-source"
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-origin	FAIL	assert_equals: mask-origin should be canonical expected "border-box, padding-box" but got "border-box"
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-position	FAIL	assert_equals: mask-position should be canonical expected "0% 0%, 0% 0%" but got "0% 0%"
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-repeat	FAIL	assert_equals: mask-repeat should be canonical expected "repeat, repeat" but got "repeat"
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should set mask-size	FAIL	assert_equals: mask-size should be canonical expected "auto, auto" but got "auto"
e.style['mask'] = "none, linear-gradient(to left bottom, red, blue) padding-box" should not set unrelated longhands	PASS

Enable JavaScript in test iframe

/css/css-masking/parsing/mask-valid.sub.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Masking Module Level 1: parsing mask with valid values</title>
<link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-mask">
<meta name="assert" content="mask supports the full '<mask-layer>#' grammar.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
<script src="/css/support/shorthand-testcommon.js"></script>
</head>
<body>
<script>
// <mask-layer> = <mask-reference> || <position> [ / <bg-size> ]? || <repeat-style> ||
// <geometry-box> || [ <geometry-box> | no-clip ] || <compositing-operator> || <masking-mode>

// <mask-reference> = none | <image> | <mask-source>
test_valid_value('mask', 'none');
test_valid_value('mask', 'linear-gradient(to left bottom, red, blue)');
test_valid_value('mask', 'linear-gradient(to left bottom, red, blue) luminance');
test_valid_value('mask', 'url("https://{{host}}/")');

// <position> [ / <bg-size> ]?
test_valid_value('mask', 'linear-gradient(to left bottom, red, blue) 1px 2px');
test_valid_value('mask', 'url("https://{{host}}/") 1px 2px / contain');

// <repeat-style> = repeat-x | repeat-y | [repeat | space | round | no-repeat]{1,2}
test_valid_value('mask', 'repeat-y');

// <geometry-box> = <shape-box> | fill-box | stroke-box | view-box
// <shape-box> = <box>
// <box> = border-box | padding-box | content-box
test_valid_value('mask', 'border-box', 'none');
test_valid_value('mask', 'linear-gradient(to left bottom, red, blue) padding-box');
test_valid_value('mask', 'content-box');
test_valid_value('mask', 'url("https://{{host}}/") fill-box');
test_valid_value('mask', 'linear-gradient(to left bottom, red, blue) stroke-box');
test_valid_value('mask', 'view-box');

// [ <geometry-box> | no-clip ]
test_valid_value('mask', 'no-clip');

// <compositing-operator> = add | subtract | intersect | exclude
test_valid_value('mask', 'url("https://{{host}}/") add', 'url("https://{{host}}/")');
test_valid_value('mask', 'subtract');
test_valid_value('mask', 'url("https://{{host}}/") intersect');
test_valid_value('mask', 'linear-gradient(to left bottom, red, blue) exclude');

// <masking-mode> = alpha | luminance | auto
test_valid_value('mask', 'alpha');
test_valid_value('mask', 'url("https://{{host}}/") alpha');

// Test the combination of mask-origin and mask-clip.
test_valid_value('mask', 'border-box border-box', 'none');
test_valid_value('mask', 'content-box content-box', 'content-box');
test_valid_value('mask', 'border-box content-box', 'border-box content-box');
test_valid_value('mask', 'border-box no-clip', 'no-clip');

// <mask-layer> = <mask-reference> || <position> [ / <bg-size> ]? || <repeat-style> ||
// <geometry-box> || [ <geometry-box> | no-clip ] || <compositing-operator> || <masking-mode>
test_valid_value('mask',
    'intersect no-clip space round 1px 2px / contain stroke-box linear-gradient(to left bottom, red, blue) luminance',
    'linear-gradient(to left bottom, red, blue) 1px 2px / contain space round stroke-box no-clip intersect luminance');
test_valid_value('mask',
    'intersect no-clip space round 1px 2px / contain view-box, stroke-box linear-gradient(to left bottom, red, blue) luminance',
    '1px 2px / contain space round view-box no-clip intersect, linear-gradient(to left bottom, red, blue) stroke-box luminance');

// Earlier versions of the mask shorthand always required a <mask-reference>.
// To avoid unnecessarily losing test coverage, keep one of the test cases from back then.
test_valid_value('mask', 'none alpha', 'alpha');

test_shorthand_value('mask', 'none', {
    'mask-image': 'none',
    'mask-position': '0% 0%',
    'mask-size': 'auto',
    'mask-repeat': 'repeat',
    'mask-origin': 'border-box',
    'mask-clip': 'border-box',
    'mask-composite': 'add',
    'mask-mode': 'match-source',
    'mask-border-source': 'none',
    'mask-border-outset': '0',
    'mask-border-repeat': 'stretch',
    'mask-border-slice': '0',
    'mask-border-width': 'auto'
})
test_shorthand_value('mask', 'none, linear-gradient(to left bottom, red, blue) padding-box', {
    'mask-image': 'none, linear-gradient(to left bottom, red, blue)',
    'mask-position': '0% 0%, 0% 0%',
    'mask-size': 'auto, auto',
    'mask-repeat': 'repeat, repeat',
    'mask-origin': 'border-box, padding-box',
    'mask-clip': 'border-box, padding-box',
    'mask-composite': 'add, add',
    'mask-mode': 'match-source, match-source',
    'mask-border-source': 'none',
    'mask-border-outset': '0',
    'mask-border-repeat': 'stretch',
    'mask-border-slice': '0',
    'mask-border-width': 'auto'
})

</script>
</body>
</html>