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https://github.com/web-platform-tests/wpt
26 December 2018, 22:31:15 UTC
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Tip revision: 64bd43ee19cc4667e4a3020c5894af7dbe68f5cc authored by Yuki Shiino on 25 December 2018, 07:52:23 UTC
v8binding: Add lexical scope test of event handlers in WPT
Tip revision: 64bd43e
outline-017.html 
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Basic User Interface Test: interpolable outline-* properties animation</title>
<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net">
<link rel="help" href="https://drafts.csswg.org/css-ui-3/#propdef-outline-style">
<link rel="help" href="https://www.w3.org/TR/web-animations-1/#dom-animatable-animate">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
@keyframes outline-anim {
  from {
    outline: solid 1px rgba(1, 0, 0, 0.5);
    outline-offset: 1px;
  }
  to {
    outline: solid 3px rgba(3, 0, 0, 0.5);
    outline-offset: 3px;
  }
}

#test {
  animation: outline-anim 3s -1.5s paused linear;
  outline: solid 1px rgba(1, 0, 0, 0.5);
  outline-offset: 1px;
}
</style>
<body>
  <div id="test"></div>
  <div id=log></div>

  <script>
    // outline being a render-only property, its animation can be done off the main thread
    // checking the values after the first paint is safer, hence requestAnimationFrame
    setup({explicit_done:true});
    requestAnimationFrame(function() {
        // synchronous tests being run during the page's first paint
        test(
          function(){
            var test = document.getElementById("test");
            assert_equals(getComputedStyle(test).outlineColor, 'rgba(2, 0, 0, 0.5)');
          }, "outline-color is animated as a color");
        test(
          function(){
            var test = document.getElementById("test");
            assert_equals(getComputedStyle(test).outlineWidth, '2px');
          }, "outline-width is animated as a length");
        test(
          function(){
            var test = document.getElementById("test");
            assert_equals(getComputedStyle(test).outlineOffset, '2px');
          }, "outline-offset is animated as a length");
        done();
    });
</script>
</body>
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