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diff --git a/testing/web-platform/tests/requestidlecallback/callback-multiple-calls.html b/testing/web-platform/tests/requestidlecallback/callback-multiple-calls.html
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+++ b/testing/web-platform/tests/requestidlecallback/callback-multiple-calls.html
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+<!doctype html>
+<meta charset=utf-8>
+<title>multiple calls to requestIdleCallback</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<div id="log"></div>
+<script>
+ let option = {timeout: 50};
+
+ async_test(function (t) {
+ assert_false(document.hidden, "document.hidden must exist and be false to run this test properly");
+ var counter = 0;
+ function f(c) {
+ assert_equals(counter, c);
+ if (counter === 49) {
+ t.done();
+ }
+
+ ++counter;
+ }
+ for (var i = 0; i < 100; ++i) {
+ let j = i;
+ window.requestIdleCallback(t.step_func(function () { f(j) }), option);
+ }
+ }, "requestIdleCallback callbacks should be invoked in order (called iteratively)");
+
+ async_test(function (t) {
+ assert_false(document.hidden, "document.hidden must exist and be false to run this test properly");
+ var counter = 0;
+
+ function f(c) {
+ assert_equals(counter, c);
+ if (counter === 49) {
+ t.done();
+ }
+
+ ++counter;
+ window.requestIdleCallback(t.step_func(function () { f(c + 1) }), option);
+ }
+
+ window.requestIdleCallback(t.step_func(function () { f(0) }), option);
+ }, "requestIdleCallback callbacks should be invoked in order (called recursively)");
+
+ let generateIdlePeriods = _ => requestAnimationFrame(generateIdlePeriods);
+ generateIdlePeriods();
+</script>