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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/idlharness.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/idlharness.html')
| -rw-r--r-- | testing/web-platform/tests/largest-contentful-paint/idlharness.html | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/testing/web-platform/tests/largest-contentful-paint/idlharness.html b/testing/web-platform/tests/largest-contentful-paint/idlharness.html new file mode 100644 index 0000000000..84d1c7ff9a --- /dev/null +++ b/testing/web-platform/tests/largest-contentful-paint/idlharness.html @@ -0,0 +1,30 @@ +<!doctype html> +<title>Largest Contentful Paint IDL tests</title> +<link rel="help" href="https://wicg.github.io/largest-contentful-paint/"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="/resources/WebIDLParser.js"></script> +<script src="/resources/idlharness.js"></script> +<script> +'use strict'; + +idl_test( + ['largest-contentful-paint'], + ['performance-timeline', 'dom', 'hr-time'], + async (idl_array, t) => { + idl_array.add_objects({ + LargestContentfulPaint: ['lcp'] + }); + + window.lcp = await new Promise((resolve, reject) => { + const observer = new PerformanceObserver(entryList => { + resolve(entryList.getEntries()[0]); + }); + observer.observe({type: 'largest-contentful-paint', buffered: true}); + t.step_timeout(() => reject('Timed out waiting for LargestContentfulPaint entry'), 3000); + }); + } +); +</script> +<!-- a contentful element to observe --> +<img src=/images/green-100x50.png> |