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<head>
<title>
Test micro task checkpoints in AudioWorkletGlobalScope
</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/webaudio/resources/audit.js"></script>
<meta charset=utf-8>
</head>
<body>
<script id="layout-test-code">
promise_test(async () => {
const context = new AudioContext();
let filePath = 'processors/promise-processor.js';
await context.audioWorklet.addModule(filePath);
await context.suspend();
let node1 = new AudioWorkletNode(context, 'promise-processor');
let node2 = new AudioWorkletNode(context, 'promise-processor');
// Connecting to the destination is not strictly necessary in theory,
// but see
// https://bugs.chromium.org/p/chromium/issues/detail?id=1045926
// for why it is in practice.
node1.connect(node2).connect(context.destination);
await context.resume();
// The second node is the one that is going to receive the message,
// per spec: it is the second that will be processed, each time.
const e = await new Promise((resolve) => {
node2.port.onmessage = resolve;
});
context.close();
assert_equals(e.data, "ok",
`Microtask checkpoints are performed
in between render quantum`);
}, "test");
</script>
</body>
</html>
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