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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-image.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-image.html')
| -rw-r--r-- | testing/web-platform/tests/largest-contentful-paint/observe-image.html | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/testing/web-platform/tests/largest-contentful-paint/observe-image.html b/testing/web-platform/tests/largest-contentful-paint/observe-image.html new file mode 100644 index 0000000000..707840671b --- /dev/null +++ b/testing/web-platform/tests/largest-contentful-paint/observe-image.html @@ -0,0 +1,27 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Largest Contentful Paint: observe image.</title> +<body> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/largest-contentful-paint-helpers.js"></script> +<script> + async_test(function (t) { + assert_implements(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented"); + const beforeLoad = performance.now(); + const observer = new PerformanceObserver( + t.step_func_done(function(entryList) { + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + const url = window.location.origin + '/images/blue.png'; + // blue.png is 133 by 106. + const size = 133 * 106; + checkImage(entry, url, 'image_id', size, beforeLoad); + }) + ); + observer.observe({type: 'largest-contentful-paint', buffered: true}); + }, 'Same-origin image is observable.'); +</script> + +<img src='/images/blue.png' id='image_id'/> +</body> |