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'use strict'; const common = require('../common'); const net = require('net'); const assert = require('assert'); const server = net.createServer(); const { getEventListeners, once } = require('events'); const liveConnections = new Set(); server.listen(0, common.mustCall(async () => { const port = server.address().port; const host = 'localhost'; const socketOptions = (signal) => ({ port, host, signal }); server.on('connection', (connection) => { liveConnections.add(connection); connection.on('close', () => { liveConnections.delete(connection); }); }); const assertAbort = async (socket, testName) => { try { await once(socket, 'close'); assert.fail(`close ${testName} should have thrown`); } catch (err) { assert.strictEqual(err.name, 'AbortError'); } }; async function postAbort() { const ac = new AbortController(); const { signal } = ac; const socket = net.connect(socketOptions(signal)); assert.strictEqual(getEventListeners(signal, 'abort').length, 1); ac.abort(); await assertAbort(socket, 'postAbort'); } async function preAbort() { const ac = new AbortController(); const { signal } = ac; ac.abort(); const socket = net.connect(socketOptions(signal)); assert.strictEqual(getEventListeners(signal, 'abort').length, 0); await assertAbort(socket, 'preAbort'); } async function tickAbort() { const ac = new AbortController(); const { signal } = ac; setImmediate(() => ac.abort()); const socket = net.connect(socketOptions(signal)); assert.strictEqual(getEventListeners(signal, 'abort').length, 1); await assertAbort(socket, 'tickAbort'); } async function testConstructor() { const ac = new AbortController(); const { signal } = ac; ac.abort(); const socket = new net.Socket(socketOptions(signal)); assert.strictEqual(getEventListeners(signal, 'abort').length, 0); await assertAbort(socket, 'testConstructor'); } async function testConstructorPost() { const ac = new AbortController(); const { signal } = ac; const socket = new net.Socket(socketOptions(signal)); assert.strictEqual(getEventListeners(signal, 'abort').length, 1); ac.abort(); await assertAbort(socket, 'testConstructorPost'); } async function testConstructorPostTick() { const ac = new AbortController(); const { signal } = ac; const socket = new net.Socket(socketOptions(signal)); assert.strictEqual(getEventListeners(signal, 'abort').length, 1); setImmediate(() => ac.abort()); await assertAbort(socket, 'testConstructorPostTick'); } await postAbort(); await preAbort(); await tickAbort(); await testConstructor(); await testConstructorPost(); await testConstructorPostTick(); // Killing the net.socket without connecting hangs the server. for (const connection of liveConnections) { connection.destroy(); } server.close(common.mustCall()); }));