| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>CSS Fonts Module Level 4: getComputedStyle().fontSize</title> |
| <link rel="help" href="https://drafts.csswg.org/css-fonts-4/#font-size-prop"> |
| <meta name="assert" content="font-size computed value is an absolute length."> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/computed-testcommon.js"></script> |
| <style> |
| #container { |
| font-size: 40px; |
| } |
| </style> |
| </head> |
| <body> |
| <div id="container"> |
| <div id="target"></div> |
| </div> |
| <font id="reference"></font> |
| <script> |
| function test_relative_size(first, second) { |
| test(() => { |
| const target = document.getElementById('target'); |
| target.style.fontSize = first; |
| const firstResult = Number(getComputedStyle(target).fontSize.replace('px', '')); |
| target.style.fontSize = second; |
| const secondResult = Number(getComputedStyle(target).fontSize.replace('px', '')); |
| assert_less_than_equal(firstResult, secondResult); |
| }, first + ' <= ' + second); |
| } |
| |
| test_relative_size('xx-small', 'x-small'); |
| test_relative_size('x-small', 'small'); |
| test_relative_size('small', 'medium'); |
| test_relative_size('medium', 'large'); |
| test_relative_size('large', 'x-large'); |
| test_relative_size('x-large', 'xx-large'); |
| // Added in Fonts level 4: https://github.com/w3c/csswg-drafts/issues/3907 |
| test_relative_size('xx-large', 'xxx-large'); |
| |
| // <relative-size> |
| test_relative_size('inherit', 'larger'); |
| test_relative_size('smaller', 'inherit'); |
| |
| // <length-percentage> |
| test_computed_value('font-size', '10px'); |
| test_computed_value('font-size', '20%', '8px'); |
| test_computed_value('font-size', 'calc(30% - 40px)', '0px'); |
| test_computed_value('font-size', 'calc(30% + 40px)', '52px'); |
| test_computed_value('font-size', 'calc(10px - 0.5em)', '0px'); |
| test_computed_value('font-size', 'calc(10px + 0.5em)', '30px'); |
| |
| function test_font_size(attribute, keyword) { |
| test(() => { |
| const reference = document.getElementById('reference'); |
| reference.setAttribute('size', attribute); |
| const target = document.getElementById('target'); |
| target.style.fontSize = keyword; |
| assert_equals(getComputedStyle(target).fontSize, getComputedStyle(reference).fontSize); |
| }, '<font size="' + attribute + '"> is font-size: ' + keyword); |
| } |
| |
| test_font_size('2', 'small'); |
| test_font_size('3', 'medium'); |
| test_font_size('4', 'large'); |
| test_font_size('5', 'x-large'); |
| test_font_size('6', 'xx-large'); |
| test_font_size('7', 'xxx-large'); |
| </script> |
| </body> |
| </html> |
