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32 lines
1 KiB
HTML
32 lines
1 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>cancelling idle requests</title>
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<script src=/resources/testharness.js></script>
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<script src=/resources/testharnessreport.js></script>
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<div id="log"></div>
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<script>
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test(function (t) {
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window.cancelIdleCallback(42);
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assert_true(true);
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}, "cancelIdleCallback does nothing if there is no callback with the given handle");
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async_test(function (t) {
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assert_false(document.hidden, "document.hidden must exist and be false to run this test properly");
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var neverCalled = true;
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var handle = window.requestIdleCallback(function () {
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neverCalled = false;
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});
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window.cancelIdleCallback(handle);
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t.step_timeout(function() {
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assert_true(neverCalled);
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t.done();
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}, 2000);
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}, "A cancelled callback is never invoked");
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async_test(function (t) {
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var handle = requestIdleCallback(t.step_func_done(function () {
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cancelIdleCallback(handle);
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}));
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}, "Cancelling the currently executing idle callback should be allowed");
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</script>
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