retrievability.html

Enable keyboard shortcuts

This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /element-timing/retrievability.html - WPT Dashboard Interop Dashboard

<!DOCTYPE HTML>

<meta charset=utf-8>

<title>Element Timing: 'element' entries are not accessible via performance timeline</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="resources/element-timing-helpers.js"></script>

<script>

  let img;

  async_test(function (t) {

    assert_implements(window.PerformanceElementTiming, "PerformanceElementTiming is not implemented");

    const beforeRender = performance.now();

    new PerformanceObserver(

      t.step_func_done(function(entryList) {

        assert_equals(entryList.getEntries().length, 1);

        const entry = entryList.getEntries()[0];

        assert_equals(entry.entryType, 'element');

        assert_equals(entry.name, 'image-paint');

        const entriesByName = performance.getEntriesByName('image-paint', 'element');

        const entriesByType = performance.getEntriesByType('element');

        const allEntries = performance.getEntries();

        assert_equals(entriesByName.length, 0, 'Element Timing entry should not be retrievable by getEntriesByName');

        assert_equals(entriesByType.length, 0, 'Element Timing entry should not be retrievable by getEntriesByType');

        assert_equals(allEntries.filter(e => e.entryType === 'element').length, 0, 'Element Timing entry should not be retrievable by getEntries');

})

    ).observe({type: 'element', buffered: true});

  }, 'Element Timing entries are not accessible via performance.getEntries*');

</script>

<img src='resources/square100.png' elementtiming='my_image' id='my_id'/>