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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/image-full-viewport.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/image-full-viewport.html')
| -rw-r--r-- | testing/web-platform/tests/largest-contentful-paint/image-full-viewport.html | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/testing/web-platform/tests/largest-contentful-paint/image-full-viewport.html b/testing/web-platform/tests/largest-contentful-paint/image-full-viewport.html new file mode 100644 index 0000000000..2f8e17fb32 --- /dev/null +++ b/testing/web-platform/tests/largest-contentful-paint/image-full-viewport.html @@ -0,0 +1,45 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Largest Contentful Paint: size when image overflows</title> +<!-- In this test, an image with an intrinsic size of 100 x 50 is added, but + scaled up in order to overflow the viewport. It should not be reported. --> +<body> +<style> +body { + margin: 0px; +} +</style> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/largest-contentful-paint-helpers.js"></script> +<script> + const viewportWidth = document.documentElement.clientWidth; + const viewportHeight = document.documentElement.clientHeight; + setup({"hide_test_state": true}); + async_test(function (t) { + assert_implements(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented"); + const beforeLoad = performance.now(); + new PerformanceObserver( + t.step_func_done(function(entryList) { + assert_equals(entryList.getEntries().length, 1, 'Should have received only one entry!'); + const entry = entryList.getEntries()[0]; + if (entry.url) + assert_unreached('Should not have received an image entry!'); + }) + ).observe({type: 'largest-contentful-paint', buffered: true}); + // Add an image, setting width and height equal to viewport. + img = document.createElement('img'); + img.src = '/images/lcp-100x50.png'; + img.id = 'image_id'; + img.width = viewportWidth * 2; + img.height = viewportHeight * 2; + img.onload = () => { + const p = document.createElement('p'); + p.innerHTML = 'a'; + p.style = 'position: absolute; top: 10px; left: 10px;'; + document.body.appendChild(p); + } + document.body.appendChild(img); + }, 'The intersectionRect of an img element overflowing is computed correctly'); +</script> +</body> |