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Diffstat (limited to 'testing/web-platform/tests/largest-contentful-paint/cross-origin-image.sub.html')
| -rw-r--r-- | testing/web-platform/tests/largest-contentful-paint/cross-origin-image.sub.html | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/testing/web-platform/tests/largest-contentful-paint/cross-origin-image.sub.html b/testing/web-platform/tests/largest-contentful-paint/cross-origin-image.sub.html new file mode 100644 index 0000000000..0cfdd1791b --- /dev/null +++ b/testing/web-platform/tests/largest-contentful-paint/cross-origin-image.sub.html @@ -0,0 +1,27 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Largest Contentful Paint: observe cross-origin images but without renderTime.</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 = 'http://{{domains[www]}}:{{ports[http][1]}}/images/blue.png'; + // blue.png is 133 x 106. + const size = 133 * 106; + checkImage(entry, url, 'image_id', size, beforeLoad, ['renderTimeIs0']); + }) + ); + observer.observe({type: 'largest-contentful-paint', buffered: true}); + }, 'Cross-origin image is observable, with renderTime equal to 0.'); +</script> + +<img src='http://{{domains[www]}}:{{ports[http][1]}}/images/blue.png' id='image_id'/> +</body> |