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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/soft-navigation-heuristics/softnav-after-lcp-paint.tentative.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/soft-navigation-heuristics/softnav-after-lcp-paint.tentative.html')
| -rw-r--r-- | testing/web-platform/tests/soft-navigation-heuristics/softnav-after-lcp-paint.tentative.html | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/testing/web-platform/tests/soft-navigation-heuristics/softnav-after-lcp-paint.tentative.html b/testing/web-platform/tests/soft-navigation-heuristics/softnav-after-lcp-paint.tentative.html new file mode 100644 index 0000000000..cf9a9942ca --- /dev/null +++ b/testing/web-platform/tests/soft-navigation-heuristics/softnav-after-lcp-paint.tentative.html @@ -0,0 +1,42 @@ +<!DOCTYPE HTML> +<html> +<head> +<meta charset="utf-8"> +<title>Detect simple soft navigation.</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/resources/testdriver.js"></script> +<script src="/resources/testdriver-vendor.js"></script> +<script src="resources/soft-navigation-helper.js"></script> +<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" /> +</head> +<body> + <main id=main> + <div> + <a id=link><img src="/images/lcp-256x256.png"></a> + </div> + </main> + <script> + const link = document.getElementById("link"); + testSoftNavigation({ + addContent: async () => { + let lcp_element_painted; + const lcp_element_paint_promise = new Promise((r) => { lcp_element_painted = r; }); + // Add an LCP element, but have it be small enough to not trigger the + // Soft Navigation heuristics. + const p = addTextParagraphToMain("Lorem Ipsu", /*element_timing=*/"lcp"); + (new PerformanceObserver(list => { + // Once the first element is fully painted: + lcp_element_painted(); + })).observe({type: "element", buffered: true}); + await lcp_element_paint_promise; + // Add a smaller element that gets us over that threshold. + addTextParagraphToMain("m"); + }, + link: link, + test: "Test that an image LCP followed by a smaller soft navigation LCP" + + " properly queues an LCP entry, even when the soft navigation is" + + " detected after the LCP."}); + </script> +</body> +</html> |