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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/tests/layout-instability/add-remove-position-fixed.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
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> + + |