| <!DOCTYPE html> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| 'use strict'; |
| |
| test(() => { |
| let NegativeMaskSize = 2403; // From web_feature.mojom |
| |
| let isCounted = () => internals.isUseCounted(document, NegativeMaskSize); |
| var div = document.createElement('div'); |
| |
| div.style = '-webkit-mask: -3px -4px / 1px 2px;'; |
| div.style = 'background: none, red none 50% 50% / -1px -2px round space local padding-box content-box;'; |
| assert_false(isCounted(), |
| 'background should not be counted'); |
| |
| div.style = '-webkit-mask: 3px 4px / -1px 2px;'; |
| assert_true(isCounted(), |
| '-webkit-mask should be counted'); |
| }, 'Negative size is use counted for -webkit-mask-size in shorthand'); |
| </script> |
