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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/layout-instability/content-visibility-auto-resize.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.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/layout-instability/content-visibility-auto-resize.html')
| -rw-r--r-- | testing/web-platform/tests/layout-instability/content-visibility-auto-resize.html | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/layout-instability/content-visibility-auto-resize.html b/testing/web-platform/tests/layout-instability/content-visibility-auto-resize.html new file mode 100644 index 0000000000..bb2d2e5c71 --- /dev/null +++ b/testing/web-platform/tests/layout-instability/content-visibility-auto-resize.html @@ -0,0 +1,31 @@ +<!DOCTYPE html> +<title>Layout Instability: resizing content-visibility:auto content</title> +<link rel="help" href="https://wicg.github.io/layout-instability/" /> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/util.js"></script> +<script> +// These scripts need to be before the contents because we need to ensure no +// layout shifts during page load. +promise_test(async () => { + const watcher = new ScoreWatcher; + + // Wait for the initial render to complete. + await waitForAnimationFrames(2); + + assert_equals(watcher.score, 0); +}, 'off-screen content-visibility:auto'); +</script> +<style> + .auto { + content-visibility: auto; + contain-intrinsic-size: 10px 3000px; + width: 100px; + } + .contained { + height: 100px; + background: blue; + } +</style> +<div class=auto><div class=contained></div></div> +<div class=auto><div class=contained></div></div> |