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Diffstat (limited to 'testing/web-platform/tests/html/webappapis/scripting/event-loops/microtask_after_script.html')
-rw-r--r-- | testing/web-platform/tests/html/webappapis/scripting/event-loops/microtask_after_script.html | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/webappapis/scripting/event-loops/microtask_after_script.html b/testing/web-platform/tests/html/webappapis/scripting/event-loops/microtask_after_script.html new file mode 100644 index 0000000000..799a0de605 --- /dev/null +++ b/testing/web-platform/tests/html/webappapis/scripting/event-loops/microtask_after_script.html @@ -0,0 +1,55 @@ +<!DOCTYPE html> +<head> +<link rel=author title="Aleks Totic" href="mailto:atotic@chromium.org"> +<link rel=help href="https://html.spec.whatwg.org/#clean-up-after-running-script"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/common.js"></script> +</head> +<body style="height:2000px;"> +<script> +/* +promise 1, promise 2 execute immediately after script tag +promise 1 child executes immediately after promise 2. + +Relevant specs: + +https://html.spec.whatwg.org/#clean-up-after-running-script +If the JavaScript execution context stack is now empty, perform a microtask checkpoint. + +https://html.spec.whatwg.org/#perform-a-microtask-checkpoint +"perform a microtask checkpoint" runs in a loop until all microtasks have been delivered. +*/ + +var test = async_test("Microtask immediately after script"); + +var events = []; + +Promise.resolve() +.then(function() { + events.push("promise 1"); + return Promise.resolve(); +}) +.then(function() { + test.step(function() { + events.push("promise 1 child"); + assert_array_equals(events, ["promise 1", "promise 2", "promise 1 child"]); + test.done(); + }); +}); +Promise.resolve() +.then(function() { + events.push("promise 2"); +}); + +// Set up events that must be executed after Promise. +window.setTimeout(function() { + events.push('timeout'); +}, 0); +window.addEventListener('scroll', function() { + events.push('scroll'); +}); +window.scrollBy(0,10); + +</script> +</body> |