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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /workers/abrupt-completion.html - WPT Dashboard Interop Dashboard
<!doctype html>
<meta charset=utf-8>
<title></title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>
// Tests that a {Dedicated,Shared}Worker keeps running even if its script
// evaluation results in an abrupt completion. This corresponds to the "run a
// worker" algorithm disregarding the return value of "run the {classic,module}
// script" in its step 24:
//
// "If script is a classic script, then run the classic script script.
// Otherwise, it is a module script; run the module script script."
async function testWorker(worker) {
await new Promise(resolve => {
worker.onerror = e => {
assert_not_equals(e.message.search("uncaught-exception"), -1,
"Correct uncaught exception thrown by worker");
// Suppress the exception.
e.preventDefault();
resolve();
}
});
return new Promise(resolve => {
const channel = new MessageChannel();
channel.port1.onmessage = e => {
assert_equals(e.data, "handler-before-throw", "Correct message handler.");
resolve();
};
if (worker instanceof SharedWorker) {
worker.port.postMessage("", [channel.port2]);
} else {
worker.postMessage("", [channel.port2]);
}
});
}
promise_test(async t => {
const worker = new Worker("support/abrupt-completion.js");
return testWorker(worker);
}, "DedicatedWorker should correctly handle abrupt completion");
promise_test(async t => {
const worker = new SharedWorker("support/abrupt-completion.js");
return testWorker(worker);
}, "SharedWorker should correctly handle abrupt completion");
</script>