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/* Any copyright is dedicated to the Public Domain.
"use strict";
function test(condition, message) {
self.postMessage({ type: "test", result: condition, message });
}
async function runTests() {
try {
const ports = await navigator.serial.getPorts();
test(
ports.length === 1,
"Worker should see the port granted from the window"
);
const port = ports[0];
test(port.connected, "Port should be connected initially");
// Set up disconnect listener. If GC collected the port, this would never
// fire.
const disconnectPromise = new Promise(resolve => {
port.ondisconnect = () => {
resolve();
};
});
// Tell the parent page we are ready for the device disconnection.
self.postMessage({ type: "ready" });
await disconnectPromise;
test(true, "ondisconnect event fired in worker");
test(!port.connected, "Port should be disconnected after event");
self.postMessage({ type: "done" });
} catch (e) {
self.postMessage({
type: "error",
message: `Test failed: ${e.name}: ${e.message}`,
});
}
}
runTests();