nodejs/test/parallel/test-process-getactiveresources-track-active-handles.js

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'use strict';
require('../common');
const assert = require('assert');
const net = require('net');
const NUM = 8;
const connections = [];
const clients = [];
let clients_counter = 0;
const server = net.createServer(function listener(c) {
connections.push(c);
}).listen(0, makeConnection);
function makeConnection() {
if (clients_counter >= NUM) return;
net.connect(server.address().port, function connected() {
clientConnected(this);
makeConnection();
});
}
function clientConnected(client) {
clients.push(client);
if (++clients_counter >= NUM)
checkAll();
}
function checkAll() {
assert.strictEqual(process.getActiveResourcesInfo().filter(
(type) => type === 'TCPSocketWrap').length,
clients.length + connections.length);
clients.forEach((item) => item.destroy());
connections.forEach((item) => item.end());
assert.strictEqual(process.getActiveResourcesInfo().filter(
(type) => type === 'TCPServerWrap').length, 1);
server.close();
}