| <!DOCTYPE html> |
| <title>CSS Values and Units Test: if() style() condition invalidation</title> |
| <meta name="assert" content="Test if() style() condition invalidation"> |
| <link rel="help" href="https://drafts.csswg.org/css-values-5/#if-notation"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <style> |
| html { |
| --x: 3; |
| } |
| #test { |
| --prop: if(style(--x: 3): true_value; else: false_value;); |
| } |
| </style> |
| |
| <html> |
| <body> |
| <div id="test"></div> |
| </body> |
| </html> |
| |
| <script> |
| setup({ single_test: true }); |
| let elem = document.getElementById('test'); |
| let old_value = window.getComputedStyle(elem).getPropertyValue('--prop'); |
| assert_equals(old_value, "true_value"); |
| |
| document.documentElement.style.setProperty('--x', '0'); |
| let new_value = window.getComputedStyle(elem).getPropertyValue('--prop'); |
| assert_equals( new_value, "false_value"); |
| assert_not_equals(new_value, old_value); |
| done(); |
| </script> |
