first-contentful-image.html

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

<!DOCTYPE html>

<head>

<title>Performance Paint Timing Test: FCP due to image</title>

</head>

<body>

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

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

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

<div id="image"></div>

<script>

setup({"hide_test_state": true});

async_test(function (t) {

    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");

    const img = document.createElement("IMG");

    img.src = "resources/circles.png";

    img.onload = function() {

        assertPaintTimingEntries(t, 20);

};

    document.getElementById('image').appendChild(img);

}, "First contentful paint fires due to image render.");

</script>

</body>

</html>