<!DOCTYPE html>
<html>
<body>
<script src="../../resources/js-test-pre.js"></script>
<script>
description("Test that requestAnimationFrame gets throttled in low power mode.");

let rAFHandle;
let i = 0;
function doWork()
{
    i++;
    rAFHandle = requestAnimationFrame(doWork);
}

shouldBeFalse("internals.isRequestAnimationFrameThrottled()");
shouldBe("internals.requestAnimationFrameInterval", "Infinity");
evalAndLog("rAFHandle = requestAnimationFrame(doWork);");
shouldBeFalse("internals.isRequestAnimationFrameThrottled()");
shouldBe("internals.requestAnimationFrameInterval", "0.015");
evalAndLog("internals.setLowPowerModeEnabled(true);");
shouldBeTrue("internals.isRequestAnimationFrameThrottled()");
shouldBe("internals.requestAnimationFrameInterval", "0.030");
evalAndLog("cancelAnimationFrame(rAFHandle);");
shouldBeTrue("internals.isRequestAnimationFrameThrottled()");
shouldBe("internals.requestAnimationFrameInterval", "0.030");
evalAndLog("rAFHandle = requestAnimationFrame(doWork);");
shouldBeTrue("internals.isRequestAnimationFrameThrottled()");
shouldBe("internals.requestAnimationFrameInterval", "0.030");
evalAndLog("internals.setLowPowerModeEnabled(false);");
shouldBeFalse("internals.isRequestAnimationFrameThrottled()");
shouldBe("internals.requestAnimationFrameInterval", "0.015");
</script>
<script src="../../resources/js-test-post.js"></script>
</body>
</html>