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Diffstat (limited to 'testing/web-platform/tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html')
-rw-r--r-- | testing/web-platform/tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html b/testing/web-platform/tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html new file mode 100644 index 0000000000..e9d06579d5 --- /dev/null +++ b/testing/web-platform/tests/css/css-scroll-anchoring/anchoring-with-bounds-clamping.html @@ -0,0 +1,28 @@ +<!DOCTYPE html> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<style> + +#changer { height: 1500px; } +#anchor { + width: 150px; + height: 4000px; + background-color: pink; +} + +</style> +<div id="changer"></div> +<div id="anchor"></div> +<script> + +// Test that scroll anchoring interacts correctly with scroll bounds clamping: +// There should be no visible jump even if the content shrinks such that the +// new max scroll position is less than the previous scroll position. + +test(() => { + document.scrollingElement.scrollTop = 1600; + document.querySelector("#changer").style.height = "0"; + assert_equals(document.scrollingElement.scrollTop, 100); +}, "Anchoring combined with scroll bounds clamping in the document."); + +</script> |