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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/largest-contentful-paint/multiple-image-same-src.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/largest-contentful-paint/multiple-image-same-src.html')
| -rw-r--r-- | testing/web-platform/tests/largest-contentful-paint/multiple-image-same-src.html | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/testing/web-platform/tests/largest-contentful-paint/multiple-image-same-src.html b/testing/web-platform/tests/largest-contentful-paint/multiple-image-same-src.html new file mode 100644 index 0000000000..192a7a1dec --- /dev/null +++ b/testing/web-platform/tests/largest-contentful-paint/multiple-image-same-src.html @@ -0,0 +1,49 @@ +<!DOCTYPE HTML> +<meta charset=utf-8> +<title>Largest Contentful Paint:dynamically appended image with different + dimensions but same src triggers new entry.</title> +<body> + <script src="/resources/testharness.js"></script> + <script src="/resources/testharnessreport.js"></script> + <script src="resources/largest-contentful-paint-helpers.js"></script> + <img src='/images/black-rectangle.png' id='image_id' width="50" /> + <script> + async_test(function (t) { + assert_implements(window.LargestContentfulPaint, "LargestContentfulPaint is not implemented"); + let beforeLoad = performance.now(); + let beforeSecondImageLoad = performance.now(); + let firstCallback = true; + // black-rectangle.png is 50 x 25. + const original_rect_size = 50 * 25; + // The bigger black rectangle is 100 x 50, but defined with width="50". + const bigger_rect_size = 100 * 50; + const observer = new PerformanceObserver( + t.step_func(function (entryList) { + assert_equals(entryList.getEntries().length, 1); + const entry = entryList.getEntries()[0]; + const url = window.location.origin + '/images/black-rectangle.png'; + if (firstCallback) { + // Checks the original black rectangle. + // TODO(https://crbug.com/1411616): we're testing approximated values. + checkImage(entry, url, 'image_id', original_rect_size, + beforeLoad, ["approximateSize"]); + // Creates a new bigger black rectangle. + const img = document.createElement('img'); + img.id = 'new_image_id'; + img.src = url; + img.width = 100; + beforeSecondImageLoad = performance.now(); + firstCallback = false; + document.body.appendChild(img); + } else { + // Checks the new black rectangle. + checkImage(entry, url, 'new_image_id', bigger_rect_size, beforeSecondImageLoad); + t.done(); + } + }) + ); + observer.observe({ type: 'largest-contentful-paint', buffered: true }); + }, 'Largest Contentful Paint:dynamically appended image with different ' + + 'dimensions but same src triggers new entry.'); + </script> +</body> |