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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /testing/web-platform/tests/largest-contentful-paint/observe-random-namespace.html | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/largest-contentful-paint/observe-random-namespace.html')
| -rw-r--r-- | testing/web-platform/tests/largest-contentful-paint/observe-random-namespace.html | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/testing/web-platform/tests/largest-contentful-paint/observe-random-namespace.html b/testing/web-platform/tests/largest-contentful-paint/observe-random-namespace.html new file mode 100644 index 0000000000..6fc0bbbb23 --- /dev/null +++ b/testing/web-platform/tests/largest-contentful-paint/observe-random-namespace.html @@ -0,0 +1,45 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Largest Contentful Paint: observe element created in a random namespace</title> +<body> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/largest-contentful-paint-helpers.js"></script> +<style> + div { + display: block; + } +</style> +<script> + async_test(function (t) { + assert_implements(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented"); + let beforeRender; + const observer = new PerformanceObserver( + t.step_func_done(function(entryList) { + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + assert_equals(entry.entryType, 'largest-contentful-paint'); + assert_greater_than_equal(entry.renderTime, beforeRender); + assert_greater_than_equal(performance.now(), entry.renderTime); + assert_approx_equals(entry.startTime, entry.renderTime, 0.001, + 'startTime should be equal to renderTime to the precision of 1 millisecond.'); + assert_equals(entry.duration, 0); + // Some lower bound: height of at least 12 px. + // Width of at least 100 px. + assert_greater_than(entry.size, 1200); + assert_equals(entry.loadTime, 0); + assert_equals(entry.url, ''); + assert_equals(entry.id, 'my_text'); + assert_equals(entry.element, document.getElementById("my_text")); + }) + ); + observer.observe({type: 'largest-contentful-paint', buffered: true}); + + const div = document.createElementNS("random", "div"); + div.innerHTML = "This is important text! :)"; + div.id = "my_text"; + beforeRender = performance.now(); + document.body.appendChild(div); + }, 'Element created with different namespace is observable'); +</script> +</body> |