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'use strict';
const common = require('../common');
const net = require('net');
const assert = require('assert');
const server = net.createServer();
server.listen(0, common.mustCall(function() {
const port = server.address().port;
const conn = net.createConnection(port);
conn.on('connect', common.mustCall(function() {
// Test destroy returns this, even on multiple calls when it short-circuits.
assert.strictEqual(conn, conn.destroy().destroy());
conn.on('error', common.mustCall(function(err) {
assert.strictEqual(err.message, 'This socket is closed');
}));
conn.write(Buffer.from('kaboom'), common.mustCall(function(err) {
assert.strictEqual(err.message, 'This socket is closed');
}));
server.close();
}));
}));