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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/layout-instability/add-remove-position-fixed.html | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.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/layout-instability/add-remove-position-fixed.html')
| -rw-r--r-- | testing/web-platform/tests/layout-instability/add-remove-position-fixed.html | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/testing/web-platform/tests/layout-instability/add-remove-position-fixed.html b/testing/web-platform/tests/layout-instability/add-remove-position-fixed.html new file mode 100644 index 0000000000..19a109e8d7 --- /dev/null +++ b/testing/web-platform/tests/layout-instability/add-remove-position-fixed.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<title>Layout Instability: no shift for adding/removing position:fixed</title> +<link rel="help" href="https://wicg.github.io/layout-instability/" /> +<div id="target" style="width: 100px; height: 100px; background: green; + position: absolute; top: 200px"></div> +<div style="height: 2000px"></div> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/util.js"></script> +<script> + +promise_test(async () => { + const watcher = new ScoreWatcher; + + // Wait for the initial render to complete. + await waitForAnimationFrames(2); + + window.scrollTo(0, 1000); + target.style.position = 'fixed'; + target.style.top = 0; + + await waitForAnimationFrames(3); + assert_equals(watcher.score, 0); + + window.scrollTo(0, 100); + target.style.position = 'absolute'; + target.style.top = '200px'; + + await waitForAnimationFrames(3); + assert_equals(watcher.score, 0); +}, "No shift for adding/removing position:fixed."); + +</script> + + |