| <!DOCTYPE html> |
| <meta charset="UTF-8"> |
| <link rel="help" href="https://drafts.csswg.org/css-text-3/#letter-spacing-property"> |
| <meta name="test" content="letter-spacing supports animation by computed value type"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/css/support/interpolation-testcommon.js"></script> |
| |
| <style> |
| .parent { |
| letter-spacing: 2px; |
| } |
| .target { |
| font: 10px sans-serif; |
| font-weight: bold; |
| letter-spacing: 30px; |
| } |
| .expected { |
| color: green; |
| margin-right: 30px; |
| } |
| </style> |
| |
| <body> |
| <template id="target-template">TT</template> |
| </body> |
| |
| <script> |
| test_interpolation({ |
| property: 'letter-spacing', |
| from: neutralKeyframe, |
| to: '20px', |
| }, [ |
| {at: -0.3, expect: '33px'}, |
| {at: 0, expect: '30px'}, |
| {at: 0.3, expect: '27px'}, |
| {at: 0.6, expect: '24px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '15px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'letter-spacing', |
| from: 'initial', |
| to: '20px', |
| }, [ |
| {at: -0.3, expect: '-6px'}, |
| {at: 0, expect: 'normal'}, |
| {at: 0.3, expect: '6px'}, |
| {at: 0.6, expect: '12px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '30px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'letter-spacing', |
| from: 'inherit', |
| to: '20px', |
| }, [ |
| {at: -0.3, expect: '-3.4px'}, |
| {at: 0, expect: '2px'}, |
| {at: 0.3, expect: '7.4px'}, |
| {at: 0.6, expect: '12.8px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '29px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'letter-spacing', |
| from: 'unset', |
| to: '20px', |
| }, [ |
| {at: -0.3, expect: '-3.4px'}, |
| {at: 0, expect: '2px'}, |
| {at: 0.3, expect: '7.4px'}, |
| {at: 0.6, expect: '12.8px'}, |
| {at: 1, expect: '20px'}, |
| {at: 1.5, expect: '29px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'letter-spacing', |
| from: '-10px', |
| to: '10px', |
| }, [ |
| {at: -0.3, expect: '-16px'}, |
| {at: 0, expect: '-10px'}, |
| {at: 0.3, expect: '-4px'}, |
| {at: 0.6, expect: '2px'}, |
| {at: 1, expect: '10px'}, |
| {at: 1.5, expect: '20px'}, |
| ]); |
| |
| test_interpolation({ |
| property: 'letter-spacing', |
| from: 'normal', |
| to: '10px', |
| }, [ |
| {at: -0.3, expect: '-3px'}, |
| {at: 0, expect: 'normal'}, |
| {at: 0.3, expect: '3px'}, |
| {at: 0.6, expect: '6px'}, |
| {at: 1, expect: '10px'}, |
| {at: 1.5, expect: '15px'}, |
| ]); |
| </script> |
