This tests that scroll event is dispatched in the update-the-rendering step in the event loop across all relevant frames

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


iframeB.contentWindow.scrollTo(0, 1000); updateLayout(iframeB)
iframeA.contentWindow.scrollTo(0, 1000); updateLayout(iframeA)
iframeAA.contentWindow.scrollTo(0, 1000); updateLayout(iframeAA)
PASS logs.length is 0
After requestAnimationFrame
PASS logs.length is 3
PASS logs.join(", ") is "A, AA, B"
PASS successfullyParsed is true

TEST COMPLETE