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'use strict';
const common = require('../common');
const assert = require('assert');
const { MessageChannel, moveMessagePortToContext } = require('worker_threads');
// Make sure that .start() and .stop() do not throw on closing/closed
// MessagePorts.
// Refs: https://github.com/nodejs/node/issues/26463
function dummy() {}
{
const { port1, port2 } = new MessageChannel();
port1.close(common.mustCall(() => {
port1.on('message', dummy);
port1.off('message', dummy);
port2.on('message', dummy);
port2.off('message', dummy);
}));
port1.on('message', dummy);
port1.off('message', dummy);
port2.on('message', dummy);
port2.off('message', dummy);
}
{
const { port1 } = new MessageChannel();
port1.on('message', dummy);
port1.close(common.mustCall(() => {
port1.off('message', dummy);
}));
}
{
const { port2 } = new MessageChannel();
port2.close();
assert.throws(() => moveMessagePortToContext(port2, {}), {
code: 'ERR_CLOSED_MESSAGE_PORT',
message: 'Cannot send data on closed MessagePort'
});
}
// Refs: https://github.com/nodejs/node/issues/42296
{
const ch = new MessageChannel();
ch.port1.onmessage = common.mustNotCall();
ch.port2.close();
ch.port2.postMessage('fhqwhgads');
}
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