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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/largest-contentful-paint/image-full-viewport.html | |
| parent | Initial commit. (diff) | |
| download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
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 | 44 |
1 files changed, 44 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..7da6c5c3dc --- /dev/null +++ b/testing/web-platform/tests/largest-contentful-paint/image-full-viewport.html @@ -0,0 +1,44 @@ +<!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; + 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/green-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> |