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Diffstat (limited to '')
| -rw-r--r-- | testing/web-platform/tests/layout-instability/partially-clipped-visual-rect.html | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/testing/web-platform/tests/layout-instability/partially-clipped-visual-rect.html b/testing/web-platform/tests/layout-instability/partially-clipped-visual-rect.html new file mode 100644 index 0000000000..d8be37c8bf --- /dev/null +++ b/testing/web-platform/tests/layout-instability/partially-clipped-visual-rect.html @@ -0,0 +1,32 @@ +<!DOCTYPE html> +<title>Layout Instability: partially clipped visual rect</title> +<link rel="help" href="https://wicg.github.io/layout-instability/" /> +<style> + +body { margin: 0; } +#clip { width: 150px; height: 600px; overflow: hidden; } +#j { position: relative; width: 300px; height: 200px; background: blue; } + +</style> +<div id='clip'><div id='j'></div></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); + + document.querySelector("#j").style.top = "200px"; + + // (clipped width 150px) * (height 200 + movement 200) + const expectedScore = computeExpectedScore(150 * (200 + 200), 200); + + await watcher.promise; + assert_equals(watcher.score, expectedScore); +}, "Partially clipped visual rect."); + +</script> |