| <!DOCTYPE html> |
| <html lang="en"> |
| <head> |
| <title>Test line-height `getComputedStyle` serialization</title> |
| <style> |
| #target { |
| font-family: Ahem; |
| font-size: 10px; |
| } |
| </style> |
| </head> |
| <body> |
| <p id="target">text of font-size 10px</p> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| let target = document.getElementById('target') |
| const test_line_height = (line_height_percent, expected_line_height) => { |
| test(() => { |
| target.style['line-height'] = line_height_percent |
| const actual_line_height = window.getComputedStyle(target)['line-height'] |
| assert_equals(actual_line_height, expected_line_height) |
| }, `with font-size: 10px, #target.style['line-height'] = ${line_height_percent} should result in a used line-height of ${expected_line_height}`) |
| } |
| |
| // Per spec, CSS numbers shouldn't serialize with exponents. When the following bug is fixed, this expectation will |
| // need to be updated. https://bugs.webkit.org/show_bug.cgi?id=218880 |
| test_line_height(1e+26, '9.999999146971785e+26px') |
| |
| // Per spec, CSS numbers shouldn't serialize with more than 6 digits. When the following bug is fixed, the |
| // offending expectations below will need to be updated. https://bugs.webkit.org/show_bug.cgi?id=218880 |
| test_line_height(2.53821, '25.382099151611328px') |
| test_line_height(2.6666667, '26.666664123535156px') |
| // 20 decimals. |
| test_line_height(2.12345678912345678912, '21.234567642211914px') |
| test_line_height(2.5, '25px') |
| test_line_height(2, '20px') |
| test_line_height(1.05, '10.5px') |
| test_line_height(1.049, '10.489999771118164px') |
| test_line_height(1.0491, '10.49100112915039px') |
| test_line_height(0, '0px') |
| test_line_height(1, '10px') |
| |
| target.remove() |
| </script> |
| </body> |
| </html> |
