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'use strict';
const common = require('../common');
const assert = require('assert');
const dgram = require('dgram');
const message_to_send = 'A message to send';
const server = dgram.createSocket('udp4');
server.on('message', common.mustCall((msg, rinfo) => {
assert.strictEqual(rinfo.address, common.localhostIPv4);
assert.strictEqual(msg.toString(), message_to_send.toString());
server.send(msg, 0, msg.length, rinfo.port, rinfo.address);
}));
server.on('listening', common.mustCall(() => {
const client = dgram.createSocket('udp4');
const port = server.address().port;
client.on('message', common.mustCall((msg, rinfo) => {
assert.strictEqual(rinfo.address, common.localhostIPv4);
assert.strictEqual(rinfo.port, port);
assert.strictEqual(msg.toString(), message_to_send.toString());
client.close();
server.close();
}));
client.send(message_to_send,
0,
message_to_send.length,
port,
'localhost');
client.on('close', common.mustCall(() => {}));
}));
server.on('close', common.mustCall(() => {}));
server.bind(0);
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