| <!doctype html> |
| <meta charset="utf-8"> |
| <title>CSS Test: font shorthand serialization prevention for font subproperty values the shorthand cannot express</title> |
| <link rel="help" href="https://drafts.csswg.org/css-fonts-4/#propdef-font"> |
| <link rel="help" href="https://drafts.csswg.org/cssom-1/#serializing-css-values"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <div id="test"></div> |
| <script> |
| |
| function is_property_supported(property) { |
| const element = document.getElementById('test') |
| element.style = '' |
| element.style = property + ': initial' |
| return element.style[property] == 'initial' |
| } |
| |
| function overwrite_font_shorthand(property, value) { |
| const element = document.getElementById('test') |
| element.style = '' |
| element.style.font = '16px serif' |
| element.style[property] = value |
| } |
| |
| function test_font_shorthand_specified_serializable_after_setting_subproperty(property, value) { |
| test(() => { |
| overwrite_font_shorthand(property, value) |
| assert_not_equals(document.getElementById('test').style.font, '') |
| }, 'Setting ' + property + ' to ' + value + ' should not prevent the font shorthand from serializing in specified style') |
| } |
| |
| function test_font_shorthand_computed_serializable_after_setting_subproperty(property, value) { |
| test(() => { |
| overwrite_font_shorthand(property, value) |
| assert_not_equals(getComputedStyle(document.getElementById('test')).font, '') |
| }, 'Setting ' + property + ' to ' + value + ' should not prevent the font shorthand from serializing in computed style') |
| } |
| |
| function test_font_shorthand_specified_unserializable_after_setting_subproperty(property, value) { |
| test(() => { |
| overwrite_font_shorthand(property, value) |
| assert_equals(document.getElementById('test').style.font, '') |
| }, 'Setting ' + property + ' to ' + value + ' should prevent the font shorthand from serializing in specified style') |
| } |
| |
| function test_font_shorthand_computed_unserializable_after_setting_subproperty(property, value) { |
| test(() => { |
| overwrite_font_shorthand(property, value) |
| assert_equals(getComputedStyle(document.getElementById('test')).font, '') |
| }, 'Setting ' + property + ' to ' + value + ' should prevent the font shorthand from serializing in computed style') |
| } |
| |
| function test_font_shorthand_serializable_after_setting_subproperty(property, value) { |
| test_font_shorthand_specified_serializable_after_setting_subproperty(property, value) |
| test_font_shorthand_computed_serializable_after_setting_subproperty(property, value) |
| } |
| |
| function test_font_shorthand_unserializable_after_setting_subproperty(property, value) { |
| test_font_shorthand_specified_unserializable_after_setting_subproperty(property, value) |
| test_font_shorthand_computed_unserializable_after_setting_subproperty(property, value) |
| } |
| |
| function test_font_shorthand_serialization_after_setting_subproperty(property, defaultValue, otherValue) { |
| if (!is_property_supported(property)) |
| return |
| const keywords = [ 'initial', 'inherit', 'unset', 'revert', 'revert-layer' ] |
| keywords.forEach(keyword => { |
| test_font_shorthand_specified_unserializable_after_setting_subproperty(property, keyword) |
| test_font_shorthand_computed_serializable_after_setting_subproperty(property, keyword) |
| }); |
| test_font_shorthand_serializable_after_setting_subproperty(property, defaultValue) |
| test_font_shorthand_unserializable_after_setting_subproperty(property, otherValue) |
| } |
| |
| test_font_shorthand_serializable_after_setting_subproperty('font-family', 'sans-serif') |
| |
| test_font_shorthand_serialization_after_setting_subproperty('font-variant', 'normal', 'none') |
| test_font_shorthand_serializable_after_setting_subproperty('font-variant', 'small-caps') |
| test_font_shorthand_unserializable_after_setting_subproperty('font-variant', 'all-small-caps') |
| |
| test_font_shorthand_serialization_after_setting_subproperty('font-variant-caps', 'small-caps', 'all-small-caps') |
| test_font_shorthand_serialization_after_setting_subproperty('font-stretch', 'normal', '95%') |
| test_font_shorthand_serialization_after_setting_subproperty('font-size-adjust', 'none', '0') |
| test_font_shorthand_serialization_after_setting_subproperty('font-kerning', 'auto', 'normal') |
| test_font_shorthand_serialization_after_setting_subproperty('font-variant-ligatures', 'normal', 'none') |
| test_font_shorthand_serialization_after_setting_subproperty('font-variant-position', 'normal', 'sub') |
| test_font_shorthand_serialization_after_setting_subproperty('font-variant-numeric', 'normal', 'ordinal') |
| test_font_shorthand_serialization_after_setting_subproperty('font-variant-alternates', 'normal', 'historical-forms') |
| test_font_shorthand_serialization_after_setting_subproperty('font-variant-east-asian', 'normal', 'full-width') |
| test_font_shorthand_serialization_after_setting_subproperty('font-variant-emoji', 'normal', 'text') |
| test_font_shorthand_serialization_after_setting_subproperty('font-feature-settings', 'normal', '"sinf"') |
| test_font_shorthand_serialization_after_setting_subproperty('font-language-override', 'normal', '"SRB"') |
| test_font_shorthand_serialization_after_setting_subproperty('font-optical-sizing', 'auto', 'none') |
| test_font_shorthand_serialization_after_setting_subproperty('font-variation-settings', 'normal', '"aaaa" 1') |
| |
| </script> |