| <!doctype html> |
| <title>decimal points in numbers</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <meta name=author title="Tab Atkins-Bittner"> |
| <link rel=help href="https://drafts.csswg.org/css-syntax/#consume-number"> |
| |
| <style> |
| |
| .foo {} |
| |
| </style> |
| <script> |
| |
| function roundTripNumber(input) { |
| const rule = document.styleSheets[0].cssRules[0].style; |
| const fallback = "0"; |
| rule.setProperty("line-height", fallback); |
| rule.setProperty("line-height", input); |
| const value = rule.getPropertyValue("line-height"); |
| if(value == fallback) return false; |
| return value; |
| } |
| |
| test(()=>{ |
| assert_equals(roundTripNumber("1.0"), "1"); |
| }, "decimal point between digits is valid in a number"); |
| test(()=>{ |
| assert_equals(roundTripNumber(".1"), "0.1"); |
| }, "decimal point before digits is valid in a number"); |
| test(()=>{ |
| assert_not_equals(roundTripNumber("1."), "1"); |
| }, "decimal point after digits is invalid in a number"); |
| |
| function roundTripDimension(input) { |
| const rule = document.styleSheets[0].cssRules[0].style; |
| const fallback = "0px"; |
| rule.setProperty("width", fallback); |
| rule.setProperty("width", input); |
| const value = rule.getPropertyValue("width"); |
| if(value == fallback) return false; |
| return value; |
| } |
| |
| test(()=>{ |
| assert_equals(roundTripDimension("1.0px"), "1px"); |
| }, "decimal point between digits is valid in a dimension"); |
| test(()=>{ |
| assert_equals(roundTripDimension(".1px"), "0.1px"); |
| }, "decimal point before digits is valid in a dimension"); |
| test(()=>{ |
| assert_not_equals(roundTripDimension("1.px"), "1px"); |
| }, "decimal point after digits is invalid in a dimension"); |
| |
| </script> |
